Find Drawing Projects on Upwork with Vollna

I need a typical engineering drawing for a steel window shroud to be fitted on a residential steel-framed house. The design must consider wind load.

Requirements:
- Detailed construction drawings
- Fixing details included
- Wind load considerations
- Steel material for the shroud
- Verification and adjustment of approximate dimensions

Ideal Skills and Experience:
- Structural engineering background
- Experience with steel framed constructions
- Proficiency in detailed construction drawings
- Understanding of wind load calculations

Skills: Civil Engineering, Structural Engineering, AutoCAD, Engineering Drawing, Building Engineering

We're looking for a 2D animator / motion designer for ongoing project work, full-time on the table if things click.

animation in a drawing style for educational content. Generating and animating AI pictures to look and feel like hand drawn. Expressive movement, clear storytelling, consistent output.

What I care about:

A portfolio that shows actual 2D drawing-style animation (3 examples minimum)
You know how many seconds of finished animation you deliver per week at your normal quality
You can take creative direction without needing everything spelled out


In your proposal, tell me:

Portfolio link — 2D drawing-style examples only
Weekly output (seconds of animation)
Your rate (per second/minute of animation, options on different given scopes)


No 2D-specific portfolio = no reply.

I am looking for a highly skilled vector artist/illustrator for a quick but demanding turnaround project.

I have a set of raster character images with a 3D-rendered look that need to be converted into high-quality, fully scalable vector files (.AI / .EPS) for large-format printing.

Requirements:

1. STRICTLY NO AUTO-TRACE. All paths must be drawn manually using the Pen Tool. I will check the file structure.

2. The final vectors must replicate the original colors, shading, and volume as closely as possible (using gradient meshes, blends, or precise layering).

3. Clean, minimal anchor points and well-organized layers are mandatory. The files must be 100% print-ready.

4. Please include the word "Bézier" at the beginning of your proposal so I know you read the requirements.

Deliverables:

- Fully editable Adobe Illustrator (.AI) and .EPS files.

- Organized layers and clearly labeled elements.

To apply, please provide:

1. Your fixed rate per 1 image.

2. 2-3 examples of similar manual vectorization work from your portfolio.

We are seeking an experienced civil engineer or surveyor proficient in Autodesk Civil 3D to create a detailed grading and leveling plan (nivelacioni plan) for asphalt surfaces.

Project Overview & Scope (Phase 1):
Create a precise grading/leveling plan exclusively for asphalt areas.
Ensure seamless integration and matching (uklapanje) with existing fixed points on site.
Strictly monitor and maintain mandatory minimum longitudinal (podužni) and cross/transverse (poprečni) slopes for proper drainage.

Deliver clean, well-structured Civil 3D drawings based on the provided reference style.

Future Opportunity (Phase 2):
Please note that this is a multi-phase project. If Phase 1 is completed successfully, accurately, and according to our technical standards, the freelancer will be immediately hired for Phase 2, which involves drawing longitudinal and cross-sectional profiles (uzdužni i poprečni profili).

Requirements:

Advanced expertise in Autodesk Civil 3D (surfaces, grading, feature lines).

Strong understanding of road/infrastructure design and minimum slope standards.

Ability to strictly follow the visual/graphical style and standards provided in the attached reference drawing.

Reliable communication and attention to detail.

How to Apply:
When applying, please briefly outline your experience with similar Civil 3D grading projects. Confirm that you have reviewed the attached reference drawing and can match the required technical output and presentation style.

Hey! I make small handcrafted wooden toy animals and I'm looking for an illustrator to create clean, original artwork silhouette designs based on my direction.

I need a handful of simple side-profile animal
silhouettes, drawn from scratch. Clean, simple shapes with smooth flowing lines, the kind of look you'd see in high-end wooden heirloom toys. They should read instantly as the animal without fussy detail.

What I need from you:

- Original silhouette drawings, not traced from anything

- Clean, smooth outlines with flowing curves

- Simple enough to be cut from solid wood, so no super thin or fragile bits sticking out, and a flat enough bottom on each so it can stand on its own

- Delivered as SVG or AI source files


That's it. Someone else handles the technical file
conversion, so you just need to draw beautifully.

I'd like to start with one animal as a paid test so we
can make sure we're on the same page before the rest.

Once we click, the others should move quickly since
they're all the same style.

Full ownership of the final files transfers to me.

Please share examples of similar clean silhouette or
line art work you've done. Thanks!

I need a qualified hydraulic / civil engineer to prepare a complete Site Stormwater Management Plan that focuses on a fully-engineered drainage system design for my project. Your work must be ready for submission to the approving authority, so every drawing, calculation and narrative has to satisfy all applicable local government regulations, recognised industry standards and current environmental protection guidelines.

The scope covers hydrologic and hydraulic modelling, sizing and routing of pipes, swales or channels, and clear documentation of design assumptions. If you believe supplementary measures—such as detention, retention or green infrastructure—will strengthen compliance, feel free to flag them; however, the core deliverable is the drainage system itself.

Please use professional tools you are comfortable with (e.g. AutoCAD Civil 3D, HEC-RAS, SWMM, XP-Storm or similar) and make sure units, rainfall data and land-use coefficients align with the local authority’s requirements.

Deliverables I expect:
• A stamped SMP report in PDF summarising methodology, results and maintenance recommendations
• Full hydraulic calculations and model files
• Plan set and profiles in both PDF and native CAD formats

Turnaround time and communication are important to me, and I will provide prompt site data, survey and architectural drawings once we start. I’m happy to answer technical questions along the way and will review each milestone quickly so you can keep momentum.

Skills: Project Management, CAD/CAM, Building Architecture, Technical Writing, Civil Engineering, AutoCAD, Environmental Engineering, Sustainability

I need a complete production-ready fabrication shop drawing package prepared for street furniture products.

The drawing package must include:

General arrangement drawing with plan, front elevation, side elevation and overall dimensions.
3D rendered/isometric reference view.
Exploded assembly drawing with item balloons.
Bill of materials / parts list with item number, part number, description and quantity.
Individual fabrication drawings for every component.
Sheet metal flat patterns where required.
Bend details including bend direction, angle and radius.
Hole sizes, slot sizes, cut-outs and fixing locations.
Material callouts for every part, including grade and thickness.
Finish specifications, including powder coating, primer, stainless steel finish, timber/wood finish or other surface treatments.
Weld, hinge, lock, bracket and hardware details where applicable.
Tolerances, drawing scale, revision number, sheet number and title block.
Dimensions in millimetres.
Drawings suitable for laser cutting, folding, welding, assembly and supplier manufacturing.

Required file outputs:
PDF drawing package, DWG/DXF files for manufacturing, STEP file, and native SolidWorks/Inventor files.

The drawings must be detailed enough that a factory can manufacture the product directly without needing to guess sizes, materials, bends, holes, finishes or assembly method.

FAST TURN AROUND - 2 HOURS

We're a beverage brand (GOJU) producing a PR / influencer gift box and need a production-ready insert that holds our glass bottles snugly in fitted recesses, plus the dieline so our design team can build artwork on it.

We have an existing PR box and need the insert designed to fit inside it and cradle the bottles lying flat. We'll provide full bottle specs and the box dimensions.

What we'll provide:
Outer box internal dimensions: 310 × 225 × 102 mm
200 ml bottle: technical spec drawing
60 ml bottle: technical spec drawing
A reference photo of a similar insert from another brand


What the insert needs to hold (bottles lying flat):
2 × 200 ml bottles
8 × 60 ml bottles = 4 flavours × 2 of each, with each flavour's two bottles grouped together
A small headline/branding area is desirable if space allows (the box is tight, so we'll trust your structural advice here)


Scope of work / deliverables:
Structural design of the insert that fits the 310 × 225 × 102 mm box and holds all 10 bottles securely lying flat, with bottle recesses traced accurately from our bottle specs.
Production-ready dieline / cutting file with clearly separated cut, crease and bleed layers.
Layered artwork-ready file so our team can add print design.
A 3D mockup or render / proof of the insert with bottles in place for sign-off before production.
Native source files plus exports: AI, PDF


Skills & experience required:
Proven structural / packaging design experience (inserts, trays, fitments)
Fluent in Adobe Illustrator


To apply, please include:
2–3 relevant examples of insert / fitment / packaging dielines you've produced
The software you'll use and the file formats you'll deliver

I'm seeking an artist to extend the background art on holographic Pokémon cards. The extension should match the original card's art style and fit into a standard binder card slot.

Requirements:
- Experience with Pokémon card art, especially holographic cards
- Ability to replicate and extend existing art styles
- Attention to detail and high-quality work

Please share your portfolio with similar projects or ideas using the following 3 cards. The Perrin should be extended upwards, while the Clefairy and the Feebas should be extended downwards.

Skills: Graphic Design, Photoshop, Illustrator, Illustration, Concept Art, 2D Animation, Art Consulting, 2D Game Art, 2D Drawing, Character Design

I need detailed calculations for a steel mezzanine floor intended for storage. The load capacity should be between 200-500 kg per square meter.

Requirements:
- Structural integrity assessments
- Load distribution analysis
- Material specifications using steel

Ideal Skills:
- Civil or structural engineering background
- Experience with steel mezzanine design
- Proficiency in load calculation and structural analysis

The floor is installed and has been for a few years the landlord wants a report to say it’s fit for use
It’s approved 8x6m steel columns stair case 38mm new floor and glav joists

Skills: Building Architecture, Civil Engineering, Structural Engineering, AutoCAD, Engineering Drawing, Building Design, Engineering Mathematics, Building Engineering, Construction Engineering, Construction Management

I have recently started a business where I sell crab boils. I'm hoping to make this grow into something big, but I can't do that without drawing attention first. I'd hate to use AI to help me with it's design and branding, hence why I have decided to try using authentic work created by talented minds like yourselves. Since I have just started this business, my budget is a bit limited, but for the perfect design, I can make something work. Thank you!

I’m taking a new consumer-focused product from rough idea to production and need a designer who can move fluidly between crisp 2D concept sketches and fully detailed 3D models. You’ll translate the functional brief I provide into appealing visuals that communicate form, ergonomics, and surface finishes, then refine those visuals into manufacture-ready geometry.

I expect to see examples of similar projects you’ve completed—finished renders, exploded views, or photos of items that made it to market—so I can gauge how you handle the full journey from concept to production.

Deliverables I’ll look for:
• Initial 2D sketches or digital ideations highlighting key features
• One polished 3D CAD model suitable for prototyping (STEP or IGES)
• Two or three photorealistic renders showing material and color options
• A short hand-off note outlining materials, tolerances, and assembly considerations

Feel free to work in SolidWorks, Fusion 360, Rhino, or the package you’re strongest in; as long as the final file is neutral enough for manufacturers, I’m flexible. I’ll offer timely feedback on each stage so we stay aligned and hit the aesthetic and ergonomic goals. Share your past work, and let’s see if our styles match.

Skills: 3D Rendering, Product Design, 3D Modelling, 3D Animation, 3D Design, 2D Drawing, 3D CAD, 3D Print Design

We are an Australian-based electronic security company seeking an experienced documentation specialist to help develop a professional documentation package for commercial construction and private tender projects.

The objective is to create reusable templates and documentation that can be used across future projects.

Scope

Assist in developing:

Shop Drawing Templates
As-Built Drawing Templates
CCTV, Access Control, Alarm and Intercom Documentation
Security Device Schedules
Door Schedules
Camera Schedules
Cable Schedules
Labelling Schedules
Testing & Commissioning Templates
O&M Manual Templates
Practical Completion Documentation
Defects Liability Documentation
Deliverables
Drawing title blocks and revision schedules
Drawing legends and symbol libraries
Security schedules and registers
O&M Manual templates
Commissioning and handover documentation
Documentation standards and best-practice recommendations
Preferred Experience
Electronic Security Systems
CCTV
Access Control
Commercial Construction Documentation
Shop Drawings
As-Built Drawings
Building Services Documentation

Experience with Australian construction projects is highly desirable.

Software

AutoCAD, AutoCAD LT, Bluebeam, Microsoft Word and Excel preferred.

Please provide examples of shop drawings, as-built drawings, O&M manuals, schedules, commissioning documents, or commercial construction documentation you have personally prepared.

This project may lead to ongoing work assisting with tender documentation and project delivery support.

Project Overview
A breathtaking, photorealistic painted aerial view of Atlanta, Georgia — capturing the city's skyline, neighborhoods, landmarks, and cultural soul in a single richly detailed composition. This is not a cartoon map or a travel poster. This is a fine art painting of a city that looks like it was photographed from above and painted by a master. The kind of piece Atlanta natives and the global Atlanta diaspora will immediately recognize and feel proud to assemble and display.

Art Direction & Style
• Photorealistic aerial painting — buildings, streets, and landmarks rendered with architectural accuracy
• Warm, rich color palette — terracottas, forest greens, warm golds, deep blues of the Atlanta sky
• Painterly atmosphere — light, shadow, and depth that makes the city feel alive
• High landmark density — the more recognizable Atlanta is packed in, the more engaging the puzzle
• Bird's eye or slight aerial perspective — seeing the city laid out below with dimensional depth
• The feeling of a painted photograph — real, accurate, beautiful

Must Include
• Downtown Atlanta skyline — rendered with architectural accuracy and detail
• Mercedes-Benz Stadium and State Farm Arena
• Centennial Olympic Park
• The BeltLine suggested as a green corridor through the composition
• Buckhead, Midtown, Old Fourth Ward, Sweet Auburn, West End neighborhoods
• The AUC cluster — Morehouse, Spelman, Clark Atlanta — rendered with campus detail
• Hartsfield-Jackson Airport suggested in the south
• Piedmont Park with its distinctive green
• Cultural callouts — civil rights history, music culture, food scene woven into the detail

Must Avoid
• Cartoon map aesthetic — flat icons floating on colored backgrounds
• Generic travel poster illustration style
• Overly simplified or schematic representation
• AI-generated art
• Cold or blue-heavy color treatment — Atlanta deserves warmth

Deliverables
• 1 final painting, 3000×3000px minimum, 300dpi, CMYK color profile
• Layered source file (PSD or AI) with text/labels on separate layers
• PNG and TIFF exports
• Full exclusive commercial license

NOTE TO ARTIST: Atlanta has one of the largest and most proud Black middle-class communities in America, a massive HBCU presence, and a cultural diaspora spread across the country. This painting must feel like Atlanta — not a generic Southern city. Portfolio MUST include examples of photorealistic architectural or environmental painting, aerial city illustration, or comparable detailed urban artwork. Map illustration experience strongly preferred. We will review portfolios carefully before selecting.

• Please share examples of previous illustrated map or detailed city/travel painting work — specifically photorealistic or fine art style, not cartoon or flat illustration.
• Do you confirm this illustration will be original work and not AI-generated?

We are looking for AutoCAD drafting professionals for a long-term association to support our team across a variety of civil and structural projects.

Scope of Work:

• Civil engineering drawings
• Structural GA drawings
• RCC detailing drawings
• Foundation and footing layouts
• Framing plans and sections
• Site development and civil layouts
• Water and wastewater structure drawings
• Industrial project drawings
• Drawing revisions based on engineer comments
• Preparation of construction and engineering drawings in accordance with project requirements

Requirements:

• Strong AutoCAD drafting experience
• Experience in Civil and Structural Engineering projects drafting
• Ability to understand engineering markups, sketches, and design inputs
• Good communication and coordination skills
• Attention to detail and drawing quality
• Ability to meet project schedules and deadlines

Preferred Experience:

• RCC and steel structure detailing
• Industrial facilities
• Water and wastewater treatment plants
• Pumping stations, reservoirs, and related infrastructure
• Experience working with engineering consultants

Skills: Structural Engineering, AutoCAD, Engineering Drawing, Drafting, 2D Drafting

Project Overview
A richly detailed fine art painting capturing the full energy and beauty of the HBCU experience — the yard, homecoming, band, step shows, campus life, and the unique electricity of historically Black colleges. This should feel like the most iconic photograph of HBCU life, elevated to museum-quality painting. Photorealistic figures, architectural detail, and cultural depth. The kind of piece HBCU alumni frame and pass down.

Art Direction & Style
• Photorealistic to painterly fine art — figures and environments rendered with dimensional realism
• Bold, celebratory color — school spirit energy without identifying any specific institution
• Multiple scene elements composited into a cohesive, richly detailed whole
• Architectural accuracy — historic columns, red brick, campus quads rendered with care
• Human figures painted with the dignity and presence of Kadir Nelson's work
• Energy and movement — this should feel alive, not static

Must Include
• The Yard — students gathered, socializing, the living heart of HBCU campus life
• Homecoming energy — marching band or majorette detail, crowd celebration
• Academic architecture — columns, steps, historic campus buildings
• Step show or Greek life silhouettes — no trademarked symbols, cultural presence
• Diverse student figures — natural hair, various styles, multiple generations
• Small storytelling details throughout — books, instruments, conversation, laughter

Must Avoid
• Any specific HBCU's name, logo, mascot, or identifiable landmark
• Any D9 trademarked Greek letters, shields, or official symbols
• Cartoon, flat, manga, or children's illustration styles
• AI-generated art
• Generic collegiate stock art feel

Deliverables
• 1 final digital painting, 3000×3000px minimum, 300dpi, CMYK color profile
• Layered source file (PSD or AI)
• PNG and TIFF exports
• Full exclusive commercial license

NOTE TO ARTIST: HBCU alumni are among the most passionate and loyal communities in America. This puzzle will be gifted at homecomings, purchased as dorm art, and treasured by families for decades. The bar is the highest we set. Please include in your proposal examples of narrative figurative painting and architectural/environmental illustration. This project requires both skills simultaneously.

• Please share examples of previous work illustrating Black culture, HBCU life, or African diaspora themes — specifically fine art figurative painting, not cartoon or flat illustration.
• Do you confirm this illustration will be original work and not AI-generated?

I'm looking to have a custom black-and-white illustration created for a memorial urn. I attached a reference image that captures the general style I'm looking for. The design features a central skull with a short punk-style mohawk, surrounded on each side by skeletal hands making the "rock on" gesture. Surrounding the artwork is a circular quote written in a bold Gothic/Old English font. I love the punk rock, tattoo-flash, and album-cover aesthetic of the piece, and I'm looking for something with clean linework, strong contrast, and a hand-drawn feel that can be used for engraving, printing, or an urn wrap.

The overall tone should feel rebellious, artistic, music-inspired, and thoughtful rather than dark or frightening. This is a memorial piece for my father, who called himself "The Punk Poet," so I want the artwork to celebrate his personality, love of music, humor, individuality, and outlook on life. I'm hoping to use this reference as a starting point and then customize the final design with a personal quote, imagery, and details that were meaningful to him.

Requirements:
- Overall punk/grunge aesthetic
- Black and white color scheme
- Digital format only

Ideal skills and experience:
- Strong illustration skills, especially in punk/grunge art
- Proficiency in digital drawing software
- Experience with lyric integration in artwork

Please include samples of similar work in your bids.

Skills: Illustrator, Illustration, Music, Caricature & Cartoons, Digital Art, 2D Drawing, Art Installation, Drawing Artist

I need the design from our existing PNG rebuilt so it is fully editable. I already have the visual reference and currently hold the files as “AI、PSD”. Please use Adobe Illustrator as your primary tool; a matching Photoshop version is also required.

Deliverables:
• Editable .ai file
• Editable .psd file
• All text, logo, colours and layers left fully modifiable
• 必ず文字化けしない日本語フォントを利用して下さい so every Japanese character stays intact

Key details:
• You can start immediately and finish the first draft within 6 hours.
• I may request a few small tweaks after review.
• The original, unlocked files must be sent before I can release the milestone so my client and I can double-check everything.
• This assignment is a test run; successful collaboration could lead to a future 30-page project series.

Only apply if you are comfortable with the timing, revision workflow and milestone condition.

Skills: Graphic Design, Photoshop, Illustrator, Adobe InDesign, Adobe Illustrator, 2D Drawing, Adobe Photoshop, Vector Design

I already have a preliminary layout of my commercial car-wash in both PDF and DWG. What I need now is a clean, fully dimensioned architectural drawing set that can be issued to council, trades and equipment suppliers.

The scope is strictly architectural—no electrical, plumbing or structural detailing at this stage. The set should expand the existing concept into multiple sheets that clearly show:
• Floor plans with accurate dimensions, grid lines and room names
• Exterior and interior elevations with finished floor levels and key heights
• Building sections that illustrate roof slopes, wall build-ups and slab depths

I will forward reference examples so you can mirror the line weights, symbols and general presentation style I prefer. Otherwise, follow normal industry drafting standards.

Please insert my company logo, title block and contact information on every sheet, and return both the editable DWG files (AutoCAD 2025 or newer) and print-ready PDFs.

Acceptance criteria
• All dimensions closed and verifiable in model space
• Consistent layer naming and line-type conventions
• Title block populated with my branding and project data on every page
• A minimum of three separate sheets: plan, elevations, sections
• No missing Xrefs, fonts or plot styles in the DWG package

I need it in 24 hours.

Skills: Building Architecture, AutoCAD, Interior Design, 3D Modelling, Drafting, Building Design, Building Information Modeling, Architecture

Project Overview
I am looking for a talented Manga Artist / Illustrator to collaborate on a new, high-concept psychological mystery manga series titled "Inheritance Tax."

The Premise: In a world where newborns inherit random fragments of the memories and skills of the dead, a high school student named Kyo Tokizaki is born with the complete, intact life of a person inside his head—except the life belongs to a woman who won't be born for another 80 years. He is hunted by Inspector Vance, an elite international agent for the government bureau that taxes these memories.

Visual Style & Vibe
Genre: Seinen / Psychological Suspense / Noir.

Aesthetic: High-contrast, cinematic, heavy use of deep shadows and expressive character acting. Visually inspired by series like Death Note, Psycho-Pass, and Tokyo Ghoul.

Scope of Work (Phase 1: Paid Character Design Trial)
Before diving into the full 18-page script for Chapter 1, I want to commission character design model sheets for our three main characters to ensure our visual styles align.

You will be asked to create rough concept sketches/turnarounds for:

Kyo Tokizaki (17): An average-looking Japanese high school student. Key requirement: Visual Duality. He must look slouchy and unremarkable normally, but completely shift into a rigid, precise posture with an intensely dilated left pupil when his future memories hijack his body.

Inspector Vance (40s): An elite foreign investigator. Imposing, sterile, pale features, short slicked-back greying hair, and completely circular dark glasses. Wears an immaculate tailored black suit/trench coat with a silver scales-and-eye lapel pin.

Sora (25-30): The ghost from the future. Sharp, striking features with a practical short bob haircut. Wears a sleek, futuristic tactical combat uniform scuffed with ash and blood.

Deliverables Required
Rough expression sheets and front/side pose turnarounds for Kyo, Vance, and Sora.

Black and white digital line art (shading style test on at least one character).

High-resolution files (PSD/CLIP format and PNG exports).

Future Work Opportunity
If this character design phase is successful and we work well together, this will immediately transition into a long-term contract to draw the entire 18-page first chapter (and subsequent chapters), paid on a fixed-price, milestone-per-page basis.

Rights & Ownership
This is a standard Work-for-Hire contract. Upon release of the milestone payment, 100% of the intellectual property, copyrights, and commercial rights to the artwork and character designs will belong to the client. You are welcome to use the designs in your portfolio after the official launch of the series.

To Apply
Please submit:

- A link to your portfolio (specifically showcasing manga pages, panel sequential art, or high-contrast character designs).

- Your estimated fixed-price quote for designing these 3 character sheets.

- Your standard page rate for fully finished black-and-white manga pages for the future chapter work.

I have an image that I would like to be converted into a line drawing with a transparent background - the same style as shown in the image attached.

If this is something you can do for me, please reach out!
Thank you.

Hello,
We are in need of Civil Plans.....topographical contours for a grading plan....grading is already done and we have a draft......need to turn draft into a professional drawing using Chief Architect (or similar) in producing the CAD file.
Thank you for your interest!

Project Overview
A richly detailed, photorealistic fine art painting of a Black community celebration — a summer cookout, block party, or neighborhood gathering captured at its most joyful, warm, and alive. This is the kind of painting that makes you feel like you were there. Multi-generational, culturally specific, bursting with life and detail. Think Colin Bootman's narrative warmth combined with Kadir Nelson's figure realism. Every face has a story. Every detail tells the culture.

Art Direction & Style
• Photorealistic narrative painting — figures rendered with full dimensional realism, not stylized
• Warm, golden palette — rich earth tones, deep greens, warm oranges, golden hour light
• Multi-generational scene — children, adults, elders all present and fully realized
• Cinematic composition — the eye travels through the scene discovering new details
• Culturally specific detail — food, clothing, hair, architecture that speaks to Black American life
• The feeling of being at the cookout — warmth, laughter, belonging

Must Include
• 20+ figures of varied ages, body types, and skin tones — all rendered with photorealistic detail
• Central gathering space — backyard, block, or park — rendered with environmental realism
• Food and cultural detail — grill smoke, red cups, dominos, music equipment — as natural scene elements
• Children in foreground or midground — playing, laughing, present
• Natural hair rendered with texture and variety — locs, twists, afros, braids
• Background depth — neighboring homes, trees, sky, crowd extending into distance

Must Avoid
• Stereotypical, reductive, or caricatured imagery of any kind
• Generic 'diversity stock art' aesthetic — figures must feel like real, specific people
• Cartoon, flat, vector, or illustrated poster styles
• AI-generated art
• Cold or desaturated color treatment

Deliverables
• 1 final digital painting, 3000×3000px minimum, 300dpi, CMYK color profile
• Layered source file (PSD or AI)
• PNG and TIFF exports
• Full exclusive commercial license

NOTE TO ARTIST: This puzzle will be displayed in Black homes across America. It must feel like a love letter to the culture — specific, warm, and true. Artists who bring personal connection to Black community life will produce the best work here. Please include narrative figurative painting samples in your proposal. We are not looking for illustration — we are looking for fine art.

• Please share examples of previous work illustrating Black culture, HBCU life, or African diaspora themes — specifically fine art figurative painting, not cartoon or flat illustration.
• Do you confirm this illustration will be original work and not AI-generated

Project overview

I have an existing caricature illustration of a footy player that I need redrawn in full as a vector, with one key change: the head and face need to be adjusted to look like a specific real person based on reference photos I'll provide. The pose, clothing, and composition should stay the same.
What I need

Redraw the full illustration as clean vector artwork
Keep the existing pose, clothing, and composition
Adjust the head and face to be a caricature likeness of a real person (reference photos provided)
Deliver as vector (AI/EPS/SVG) or high-res PNG

I need this delivered in the next 4 hours

What you don't need to do

No text (I'll handle that)
No background

To apply

Include examples of vector caricature/likeness work
Confirm you can start immediately

Important: Hand-drawn vector work only. Do not apply if you intend to use AI-generated imagery. I will ask to see your working process if needed.

Job description:

SENTENAC HOUSE INTERIORS

CAD Drafter — Luxury Residential Interiors

Full-Time Contract · Remote · Through August 2026 (with possibility to extend)

Company: Sentenac House Interiors

Engagement: Full-time contract (approx. 40 hrs/week)

Term: Start date through August 2026, with the possibility to extend on a project basis

Location: Remote — reliable availability during U.S. business hours (MST preferred)

Reports to: Principal Designer / Design Team


About Sentenac House Interiors

Sentenac House Interiors is a high-end residential design studio creating considered, livable, and deeply detailed homes for discerning clients. Our work is defined by precision, craftsmanship, and a refined point of view carried through every drawing we produce. We are looking for a CAD drafter who treats documentation as a craft and can keep pace with an active project pipeline.


The Role

We need an experienced CAD drafter to produce clean, accurate, fully coordinated drawing sets for a large expedited luxury residential interior project. You will translate concept drawings, hand sketches, and design intent into precise, construction-ready documentation. This is a hands-on production role for someone who is fast, meticulous, and self-directed — comfortable owning a drawing set from redline to issued package with minimal hand-holding. We are needing a large set of drawings in a short amount of time.

This is a full-time contract engagement running from your start date through August 2026, with strong potential for continued, project-based work beyond that term for the right person.

What You’ll Do

Produce and maintain complete interior drawing sets: floor plans, demolition plans, furniture/FF&E plans, reflected ceiling plans, lighting and electrical plans, elevations, and finish plans.
Draft detailed millwork, cabinetry, and built-in drawings, including sections and details suitable for fabrication and construction.
Convert designer sketches, concept layouts, and markups into accurate, scaled CAD drawings.
Incorporate redlines and revisions quickly and accurately, maintaining version control and clean revision tracking.
Coordinate dimensions, finishes, and specifications with the design team to keep sets internally consistent and error-free.
Maintain firm drawing standards — layers, line weights, title blocks, annotation, and sheet organization — across every project.
Prepare issued packages for client review, contractors, and trades, and keep drawing files organized and properly archived.
What You Bring

3+ years of CAD drafting experience in residential interiors or interior architecture (luxury / high-end experience strongly preferred).
Advanced proficiency in AutoCAD; experience with SketchUp and/or Revit is a plus.
Demonstrated ability to produce construction documentation, including millwork and cabinetry detailing.
Working knowledge of residential construction methods, dimensioning conventions, and basic code considerations.
Exceptional attention to detail and a high standard for clean, accurate, well-organized drawings.
Strong time management and the ability to manage multiple projects and deadlines independently in a remote setting.
Clear communicator who can take direction, ask the right questions, and turn work around quickly.
Nice to Have

Experience with 3D renderings.
Familiarity with FF&E specification workflows and design-software tools (e.g., Programa).
Experience preparing drawings for custom fabricators and high-end trades.
An eye for design and a genuine interest in luxury residential work.
Engagement Details

Full-time contract (approx. 40 hours/week) from start through August 2026.
Option to extend on a project basis beyond August for the right fit.
Remote; reliable availability during U.S. business hours required.
Compensation: competitive contract rate, commensurate with experience.
1099 contractor; you provide your own software licenses and equipment.
How to Apply

Please submit your resume, a portfolio or sample drawing set (CAD documentation, not renderings), and your contract rate to . Include a brief note on your AutoCAD experience and your availability through August.

Work Location: Hybrid remote in Scottsdale, AZ 85254

Wij zijn een snelgroeiend platform binnen de horecasector dat op zoek is naar een ervaren Head of Sales die verantwoordelijk wordt voor de dagelijkse aansturing en verdere professionalisering van de commerciële tak binnen onze organisatie.

In deze rol ben je verantwoordelijk voor het behalen van commerciële targets, het aansturen van salesmedewerkers en het optimaliseren van processen. Je zorgt ervoor dat teams effectief samenwerken, leads correct worden opgevolgd en alle leads maximaal worden benut.

Wij zoeken een hands-on leider die verantwoordelijkheid neemt, structuur aanbrengt en in staat is een salesorganisatie verder uit te bouwen.

Verantwoordelijkheden

- Dagelijkse aansturing van binnen- en buitendienstmedewerkers.
- Organiseren en leiden van sales stand-ups.
- Bewaken van individuele en teamdoelstellingen.
- Coachen van medewerkers op prestaties, opvolging en conversie.
- Actief monitoren van commerciële resultaten en KPI's.
- Zorgen voor een prestatiegerichte cultuur waarin verantwoordelijkheid en resultaten centraal staan.

Planning & operatie

- Opstellen van personeels- en salesplanningen.
- Verdelen van leads, regio's en werkzaamheden.
- Waarborgen van voldoende kwalitatieve afspraken voor de buitendienst.
- Signaleren en oplossen van operationele knelpunten.
- Waarborgen van een efficiënte samenwerking tussen binnen- en buitendienst.

Lead- en procesmanagement
- Toezien op correcte opvolging van leads en afspraken.
- Bewaken van CRM-registraties en commerciële processen.
- Rapporteren van resultaten en verbeterpunten.
- Continu optimaliseren van werkwijzen en salesprocessen.
- Zorgen dat commerciële kansen maximaal worden benut en geen leads verloren gaan.

Recruitment & onboarding

- Contact onderhouden met externe recruitment- en uitzendpartners.
- Selecteren en onboarden van nieuwe salesmedewerkers.
- Begeleiden van medewerkers tijdens hun inwerkperiode.
- Bewaken van kwaliteit en prestaties binnen het team.

Profiel

Wij zoeken een kandidaat die:

- Ervaring heeft met het aansturen van commerciële teams.
- Aantoonbaar succesvol is geweest in een resultaatgerichte salesomgeving.
- Sterk is in plannen, organiseren en prioriteren.
- Medewerkers kan motiveren, coachen en aanspreken op prestaties.
- Niet bang is om beslissingen te nemen.
- Zowel operationeel als strategisch kan denken.
- Eigenaarschap toont en verantwoordelijkheid neemt voor resultaten.
- Bereid is regelmatig mee te draaien in de praktijk om feeling te houden met de markt en het team.

Pré

- Ervaring met field sales, outbound sales of high-volume salesorganisaties.
- Ervaring met het opschalen van commerciële teams.
- Ervaring binnen een startup, scale-up of snelgroeiende organisatie.

Wij bieden

- Een sleutelpositie binnen een ambitieuze en groeiende organisatie.
- Veel verantwoordelijkheid, autonomie en beslissingsruimte.
- Directe invloed op de commerciële groei van het bedrijf.
- De mogelijkheid om een commerciële organisatie verder op te bouwen en op te schalen.

Vergoeding

- Vaste maandvergoeding van €7.500.
- Prestatiegerichte bonusregeling tot €7.500 per kwartaal op basis van vooraf vastgestelde doelstellingen.

Voor wie is deze rol?

- Deze functie is bedoeld voor een commerciële leider die energie krijgt van bouwen, organiseren en presteren.

- Iemand die niet afwacht, maar initiatief neemt. Iemand die teams beter maakt, processen scherper maakt en verantwoordelijkheid neemt voor resultaten.

- Ben jij degene die een commerciële organisatie kan leiden, opschalen en naar een hoger niveau kan brengen? Dan maken wij graag kennis met je.

CV en motivatie graag meesturen

-----------------------
English version

We are a fast-growing platform within the hospitality sector, looking for an experienced Head of Sales to take charge of the daily management and further professionalization of our commercial division.
In this role, you will be responsible for achieving commercial targets, managing sales representatives, and optimizing processes. You will ensure that teams collaborate effectively, leads are followed up correctly, and every opportunity is fully leveraged.
We are looking for a hands-on leader who takes ownership, introduces structure, and has the ability to further build out a sales organization.
Responsibilities
Daily Management & Team Leadership
Daily management of both inside sales and field sales representatives.
Organizing and leading daily sales stand-ups.
Monitoring individual and team objectives.
Coaching employees on performance, follow-up, and conversion.
Actively tracking commercial results and KPIs.
Fostering a performance-driven culture centered around accountability and results.
Planning & Operations
Drawing up staffing and sales planning.
Allocating leads, territories, and tasks.
Ensuring a steady stream of high-quality appointments for the field sales team.
Identifying and resolving operational bottlenecks.
Safeguarding efficient collaboration between inside and field sales.
Lead & Process Management
Overseeing the correct follow-up of leads and appointments.
Monitoring CRM registrations and commercial workflows.
Reporting on results and areas for improvement.
Continuously optimizing methodologies and sales processes.
Ensuring that commercial opportunities are maximized and no leads are lost.
Recruitment & Onboarding
Maintaining relationships with external recruitment and staffing partners.
Selecting and onboarding new sales representatives.
Guiding team members through their onboarding and training period.
Monitoring quality and performance across the team.
Profile
We are looking for a candidate who:
Has proven experience in managing commercial teams.
Has a track record of success in a result-driven sales environment.
Excels at planning, organizing, and prioritizing.
Can motivate, coach, and hold employees accountable for their performance.
Is decisive and not afraid to make tough calls.
Possesses both operational and strategic thinking capabilities.
Shows true ownership and takes full responsibility for results.
Is willing to regularly join the team in the field to maintain a strong connection with the market.
Nice-to-have (Pré):
Experience with field sales, outbound sales, or high-volume sales organizations.
Experience with scaling commercial teams.
Experience within a startup, scale-up, or fast-growing business environment.
What We Offer
A key position within an ambitious and growing organization.
High levels of responsibility, autonomy, and decision-making authority.
Direct impact on the commercial growth of the company.
The opportunity to further build and scale an international commercial organization.
Remuneration
Fixed monthly fee: €7,500,-
Performance-based bonus: Up to €7,500,- per quarter based on predetermined targets.
Who is this role for?
This position is designed for a commercial leader who thrives on building, organizing, and executing.
We need someone who doesn't wait around for instructions but takes initiative. Someone who elevates teams, sharpens processes, and takes full ownership of the bottom line.
Are you the one who can lead, scale, and take our commercial organization to the next level? Then we would love to meet you.
Please submit your CV and cover letter.

Project Overview
We need a photorealistic digital painting celebrating the tradition of step shows and yard scenes at HBCUs. This is a luxury adult puzzle — the finished piece should look like a photograph taken at golden hour on a yard at an HBCU, elevated to fine art. Think Kadir Nelson meets an iconic moment frozen in time. Rich, warm, deeply human. The figures should feel real — dimensional, dignified, and alive with movement and cultural energy. No cartoon aesthetic. No flat illustration. No stylized graphic look.

Art Direction & Style
• Photorealistic to painterly — figures rendered with the dimensional realism of Kadir Nelson or Thomas Blackshear
• Warm, deeply saturated palette — deep golds, rich umbers, sunset oranges, royal blues and purples woven through the scene
• Golden hour or late afternoon light — warm directional lighting that makes skin tones glow
• High visual density and depth — foreground, midground, background all richly detailed
• Emotional presence — faces and body language convey pride, power, joy, and community
• The feeling of a documentary photograph elevated to fine art — real, specific, in-the-moment

Must Include
• A central group of 8–12 figures in step formation — diverse body types, male and female, rendered with photorealistic detail
• Dynamic stepping poses — stomps, synchronized movements, raised arms — captured mid-motion like a photograph
• HBCU yard setting — lush grass, trees, a crowd of onlookers in background, campus architecture suggested
• Rich variety of skin tones across the full spectrum of Black beauty
• Clothing detail — crisp white shirts, colored jackets, formal wear — rendered with fabric texture and weight
• Crowd energy in background — faces, reactions, celebration

Must Avoid
• Any specific Greek letter combinations, shields, crests, or official D9 organization symbols
• Cartoon, comic, manga, anime, or flat illustration styles
• Vector art, clipart, or graphic design aesthetic
• AI-generated art of any kind
• Generic 'diversity' stock illustration feel — this must be culturally specific and authentic
• Washed-out or desaturated color palettes

Deliverables
• 1 final digital painting, 3000×3000px minimum, 300dpi, CMYK color profile
• Layered source file (PSD or AI) for minor adjustments
• PNG and TIFF exports
• Full exclusive commercial license — Pieced Co. owns all rights for use on physical products, marketing, and online

NOTE TO ARTIST: We are actively affiliated with the NPHC community. This piece will be purchased as a luxury gift by sorority and fraternity members, HBCU alumni, and Black families who take culture seriously. It must feel authentic to someone who has lived this experience. Please include in your proposal: 3–5 portfolio examples of photorealistic figurative work featuring Black subjects OR comparable fine art digital painting. Proposals without relevant portfolio samples will not be considered.

• Please share examples of previous work illustrating Black culture, HBCU life, or African diaspora themes — specifically fine art figurative painting, not cartoon or flat illustration.
• Do you confirm this illustration will be original work and not AI-generated?

the same description as in the title, i wii provide measurements and the freelancer will do the professional drawings accordingly.

Skills: Floor Plans

# Rocket Propulsion System Design & Analysis Project – Capability Assessment Request

Hi

I am looking for an aerospace engineer, propulsion engineer, researcher, or consultant with strong expertise in liquid rocket propulsion to support a comprehensive propulsion engineering project.

Before discussing pricing or timelines, I would like to understand whether you possess the required technical background, software proficiency, and project experience to execute a project of this scope.

This is not a simple academic assignment. The objective is to perform a complete conceptual and preliminary design study of a liquid rocket engine and associated propulsion subsystems using industry-standard methodologies and software.

---

# Project Objective

The goal is to develop a complete propulsion engineering package for a liquid rocket engine from initial requirements through preliminary design, analysis, and verification.

The project should demonstrate the workflow used by propulsion engineers working in organizations such as:

* SpaceX
* Blue Origin
* Rocket Lab
* European Space Agency
* NASA
* ArianeGroup

This project is intended as a propulsion engineering portfolio, learning exercise, and engineering demonstration project.

The project should follow professional aerospace engineering standards, assumptions, documentation, calculations, analyses, and design methodology.

---

# Desired Engine Type

The consultant should be capable of designing and analyzing one or more of the following:

### Option 1

LOX/RP-1 Liquid Rocket Engine

### Option 2

LOX/Methane Liquid Rocket Engine

### Option 3

LOX/LH2 Liquid Rocket Engine

The final selection can be discussed based on feasibility and educational value.

---

# Required Technical Scope

The project should include as many of the following areas as possible.

---

# 1. Mission Requirements Definition

Development of:

* Mission objectives
* Vehicle assumptions
* Delta-V assumptions
* Thrust requirements
* Burn duration
* Propellant selection rationale
* Chamber pressure targets
* Mixture ratio selection
* Performance goals

Deliverables:

* Requirements document
* Design assumptions document
* Mission analysis report

---

# 2. Propellant Selection Trade Study

Comparison of:

* LOX/RP-1
* LOX/Methane
* LOX/LH2

Evaluation criteria:

* Specific impulse
* Density impulse
* Storage complexity
* Cost
* Reusability
* Cooling considerations
* Manufacturing considerations

Deliverables:

* Trade matrix
* Selection justification

---

# 3. Thermochemical Analysis

Use of:

* NASA CEA

Required outputs:

* Adiabatic flame temperature
* Molecular weight
* Characteristic velocity
* Vacuum Isp
* Sea-level Isp
* Equilibrium performance
* Frozen performance

Deliverables:

* Input files
* Output reports
* Interpretation of results

---

# 4. Engine Cycle Selection

Trade study between:

* Pressure-fed
* Gas generator
* Expander cycle
* Staged combustion
* Full-flow staged combustion

Required analysis:

* Advantages
* Disadvantages
* Complexity
* Cost
* Risk

Deliverables:

* Engine cycle selection report

---

# 5. Rocket Engine Sizing

Complete preliminary sizing calculations:

* Thrust
* Mass flow rate
* Chamber pressure
* Mixture ratio
* Expansion ratio
* Characteristic length
* Chamber dimensions

Deliverables:

* Calculation workbook
* Engineering report

---

# 6. Injector Design

Analysis of:

* Showerhead injectors
* Impinging injectors
* Pintle injectors
* Coaxial injectors

Deliverables:

* Selection rationale
* Preliminary sizing
* Injector geometry

---

# 7. Combustion Chamber Design

Design and sizing of:

* Chamber geometry
* Chamber length
* Chamber diameter
* Residence time
* L* calculations

Deliverables:

* Engineering calculations
* CAD model

---

# 8. Nozzle Design

Design of:

* Convergent section
* Throat
* Divergent section

Analysis of:

* Bell nozzle
* Conical nozzle

Required calculations:

* Expansion ratio
* Area ratio
* Exit pressure
* Exit velocity

Deliverables:

* Geometry definition
* CAD model
* Performance report

---

# 9. Regenerative Cooling Analysis

Required:

* Cooling channel concepts
* Heat transfer calculations
* Thermal load estimation
* Coolant pressure drop

Deliverables:

* Thermal report
* Cooling analysis report

---

# 10. Turbomachinery Design (if applicable)

Preliminary design of:

* Fuel pump
* Oxidizer pump
* Turbine

Required calculations:

* Pump power
* Turbine power
* Pressure rise
* Rotational speed

Deliverables:

* Preliminary turbomachinery sizing report

---

# 11. Feed System Design

Development of:

* Tanks
* Feed lines
* Valves
* Pressurization systems

Deliverables:

* Feed system schematic
* Mass estimates

---

# 12. Piping and Instrumentation Diagram (P&ID)

Creation of:

* Complete propulsion architecture

Including:

* Valves
* Sensors
* Pumps
* Tanks
* Flow paths

Deliverables:

* P&ID drawing

---

# 13. CAD Development

Software preferred:

* SolidWorks
* CATIA
* Siemens NX
* Fusion 360

Expected models:

* Injector
* Chamber
* Nozzle
* Feed system
* Assembly model

Deliverables:

* Native CAD files
* STEP files
* Technical drawings

---

# 14. CFD Analysis

Software:

* ANSYS Fluent
* ANSYS CFX
* OpenFOAM
* STAR-CCM+

Potential analyses:

### Internal Flow

* Chamber flow
* Nozzle flow

### Thermal Analysis

* Heat flux
* Wall temperature

### Combustion Analysis

* Simplified combustion modelling

Deliverables:

* Mesh files
* Solver setup
* Results
* Validation discussion

---

# 15. Finite Element Analysis (FEA)

Software:

* ANSYS Mechanical
* Abaqus
* Nastran

Analysis:

* Pressure loading
* Thermal loading
* Structural integrity
* Safety factor

Deliverables:

* FEA report
* Stress plots
* Deformation plots

---

# 16. EcosimPro Modelling

Preferred if consultant has experience.

Required:

* Propulsion system architecture
* Dynamic simulation
* Start-up transient analysis
* Feed system simulation

Deliverables:

* EcosimPro model
* Simulation results

---

# 17. System-Level Modelling

Software:

* MATLAB
* Simulink
* Python
* EcosimPro

Analysis:

* Performance simulation
* Sensitivity analysis
* Parametric studies

Deliverables:

* Model files
* Technical report

---

# 18. Verification and Validation

The consultant should explain:

* Assumptions
* Limitations
* Validation methods
* Comparison with literature

Deliverables:

* Validation report

---

# 19. Mass Budget

Development of:

* Propellant masses
* Structural masses
* Feed system masses
* Engine masses

Deliverables:

* Mass budget spreadsheet

---

# 20. Failure Mode Analysis

Preliminary FMEA covering:

* Combustion instability
* Turbopump failure
* Thermal failure
* Structural failure
* Feed system failure

Deliverables:

* Risk assessment report

---

# Software Experience Required

Please indicate your level of proficiency with:

### Thermochemistry

* NASA CEA
* RPA (Rocket Propulsion Analysis)

### CAD

* SolidWorks
* CATIA
* Siemens NX

### CFD

* ANSYS Fluent
* ANSYS CFX
* OpenFOAM
* STAR-CCM+

### FEA

* ANSYS Mechanical
* Abaqus
* Nastran

### System Simulation

* EcosimPro
* MATLAB
* Simulink

### Programming

* MATLAB
* Python

---

# Deliverables Expected

The final project should ideally include:

### Documentation

* Full engineering report
* Design report
* Trade studies
* Validation reports

### Engineering Calculations

* Rocket performance calculations
* Feed system calculations
* Thermal calculations
* Structural calculations

### CAD

* Complete CAD package

### CFD

* CFD package
* Results
* Reports

### FEA

* Structural package
* Reports

### Simulation

* EcosimPro model
* MATLAB models

### Management Documents

* Statement of Work (SOW)
* Work Breakdown Structure (WBS)
* Deliverables Matrix
* Acceptance Criteria

---

# Questions for the Consultant

1. What is your educational background?

2. Have you worked on rocket propulsion projects before?

3. Have you designed liquid rocket engines?

4. Which propulsion cycles have you worked with?

5. Which of the listed software tools can you use professionally?

6. Can you perform NASA CEA analysis?

7. Can you perform CFD of combustion chambers and nozzles?

8. Can you perform FEA under thermal and pressure loads?

9. Can you develop EcosimPro propulsion models?

10. Can you create complete CAD assemblies?

11. Which portions of the project can you personally complete and which would require subcontracting?

12. Could you provide examples of similar propulsion, aerospace, turbomachinery, CFD, or thermal-fluid projects you have completed?

13. What deliverables would you realistically be able to provide?

14. What timeline would you estimate for completion?

15. What budget range would you estimate for a project of this scope?

Please be candid regarding your experience level, software capabilities, and the portions of the project you would feel comfortable delivering to a professional engineering standard. This will help determine whether there is a good fit for collaboration.

# Rocket Propulsion System Design & Analysis Project – Capability Assessment Request

Hello,

I am looking for an aerospace engineer, propulsion engineer, researcher, or consultant with strong expertise in liquid rocket propulsion to support a comprehensive propulsion engineering project.

Before discussing pricing or timelines, I would like to understand whether you possess the required technical background, software proficiency, and project experience to execute a project of this scope.

This is not a simple academic assignment. The objective is to perform a complete conceptual and preliminary design study of a liquid rocket engine and associated propulsion subsystems using industry-standard methodologies and software.

---

# Project Objective

The goal is to develop a complete propulsion engineering package for a liquid rocket engine from initial requirements through preliminary design, analysis, and verification.

The project should demonstrate the workflow used by propulsion engineers working in organizations such as:

* SpaceX
* Blue Origin
* Rocket Lab
* European Space Agency
* NASA
* ArianeGroup

This project is intended as a propulsion engineering portfolio, learning exercise, and engineering demonstration project.

The project should follow professional aerospace engineering standards, assumptions, documentation, calculations, analyses, and design methodology.

---

# Desired Engine Type

The consultant should be capable of designing and analyzing one or more of the following:

### Option 1

LOX/RP-1 Liquid Rocket Engine

### Option 2

LOX/Methane Liquid Rocket Engine

### Option 3

LOX/LH2 Liquid Rocket Engine

The final selection can be discussed based on feasibility and educational value.

---

# Required Technical Scope

The project should include as many of the following areas as possible.

---

# 1. Mission Requirements Definition

Development of:

* Mission objectives
* Vehicle assumptions
* Delta-V assumptions
* Thrust requirements
* Burn duration
* Propellant selection rationale
* Chamber pressure targets
* Mixture ratio selection
* Performance goals

Deliverables:

* Requirements document
* Design assumptions document
* Mission analysis report

---

# 2. Propellant Selection Trade Study

Comparison of:

* LOX/RP-1
* LOX/Methane
* LOX/LH2

Evaluation criteria:

* Specific impulse
* Density impulse
* Storage complexity
* Cost
* Reusability
* Cooling considerations
* Manufacturing considerations

Deliverables:

* Trade matrix
* Selection justification

---

# 3. Thermochemical Analysis

Use of:

* NASA CEA

Required outputs:

* Adiabatic flame temperature
* Molecular weight
* Characteristic velocity
* Vacuum Isp
* Sea-level Isp
* Equilibrium performance
* Frozen performance

Deliverables:

* Input files
* Output reports
* Interpretation of results

---

# 4. Engine Cycle Selection

Trade study between:

* Pressure-fed
* Gas generator
* Expander cycle
* Staged combustion
* Full-flow staged combustion

Required analysis:

* Advantages
* Disadvantages
* Complexity
* Cost
* Risk

Deliverables:

* Engine cycle selection report

---

# 5. Rocket Engine Sizing

Complete preliminary sizing calculations:

* Thrust
* Mass flow rate
* Chamber pressure
* Mixture ratio
* Expansion ratio
* Characteristic length
* Chamber dimensions

Deliverables:

* Calculation workbook
* Engineering report

---

# 6. Injector Design

Analysis of:

* Showerhead injectors
* Impinging injectors
* Pintle injectors
* Coaxial injectors

Deliverables:

* Selection rationale
* Preliminary sizing
* Injector geometry

---

# 7. Combustion Chamber Design

Design and sizing of:

* Chamber geometry
* Chamber length
* Chamber diameter
* Residence time
* L* calculations

Deliverables:

* Engineering calculations
* CAD model

---

# 8. Nozzle Design

Design of:

* Convergent section
* Throat
* Divergent section

Analysis of:

* Bell nozzle
* Conical nozzle

Required calculations:

* Expansion ratio
* Area ratio
* Exit pressure
* Exit velocity

Deliverables:

* Geometry definition
* CAD model
* Performance report

---

# 9. Regenerative Cooling Analysis

Required:

* Cooling channel concepts
* Heat transfer calculations
* Thermal load estimation
* Coolant pressure drop

Deliverables:

* Thermal report
* Cooling analysis report

---

# 10. Turbomachinery Design (if applicable)

Preliminary design of:

* Fuel pump
* Oxidizer pump
* Turbine

Required calculations:

* Pump power
* Turbine power
* Pressure rise
* Rotational speed

Deliverables:

* Preliminary turbomachinery sizing report

---

# 11. Feed System Design

Development of:

* Tanks
* Feed lines
* Valves
* Pressurization systems

Deliverables:

* Feed system schematic
* Mass estimates

---

# 12. Piping and Instrumentation Diagram (P&ID)

Creation of:

* Complete propulsion architecture

Including:

* Valves
* Sensors
* Pumps
* Tanks
* Flow paths

Deliverables:

* P&ID drawing

---

# 13. CAD Development

Software preferred:

* SolidWorks
* CATIA
* Siemens NX
* Fusion 360

Expected models:

* Injector
* Chamber
* Nozzle
* Feed system
* Assembly model

Deliverables:

* Native CAD files
* STEP files
* Technical drawings

---

# 14. CFD Analysis

Software:

* ANSYS Fluent
* ANSYS CFX
* OpenFOAM
* STAR-CCM+

Potential analyses:

### Internal Flow

* Chamber flow
* Nozzle flow

### Thermal Analysis

* Heat flux
* Wall temperature

### Combustion Analysis

* Simplified combustion modelling

Deliverables:

* Mesh files
* Solver setup
* Results
* Validation discussion

---

# 15. Finite Element Analysis (FEA)

Software:

* ANSYS Mechanical
* Abaqus
* Nastran

Analysis:

* Pressure loading
* Thermal loading
* Structural integrity
* Safety factor

Deliverables:

* FEA report
* Stress plots
* Deformation plots

---

# 16. EcosimPro Modelling

Preferred if consultant has experience.

Required:

* Propulsion system architecture
* Dynamic simulation
* Start-up transient analysis
* Feed system simulation

Deliverables:

* EcosimPro model
* Simulation results

---

# 17. System-Level Modelling

Software:

* MATLAB
* Simulink
* Python
* EcosimPro

Analysis:

* Performance simulation
* Sensitivity analysis
* Parametric studies

Deliverables:

* Model files
* Technical report

---

# 18. Verification and Validation

The consultant should explain:

* Assumptions
* Limitations
* Validation methods
* Comparison with literature

Deliverables:

* Validation report

---

# 19. Mass Budget

Development of:

* Propellant masses
* Structural masses
* Feed system masses
* Engine masses

Deliverables:

* Mass budget spreadsheet

---

# 20. Failure Mode Analysis

Preliminary FMEA covering:

* Combustion instability
* Turbopump failure
* Thermal failure
* Structural failure
* Feed system failure

Deliverables:

* Risk assessment report

---

# Software Experience Required

Please indicate your level of proficiency with:

### Thermochemistry

* NASA CEA
* RPA (Rocket Propulsion Analysis)

### CAD

* SolidWorks
* CATIA
* Siemens NX

### CFD

* ANSYS Fluent
* ANSYS CFX
* OpenFOAM
* STAR-CCM+

### FEA

* ANSYS Mechanical
* Abaqus
* Nastran

### System Simulation

* EcosimPro
* MATLAB
* Simulink

### Programming

* MATLAB
* Python

---

# Deliverables Expected

The final project should ideally include:

### Documentation

* Full engineering report
* Design report
* Trade studies
* Validation reports

### Engineering Calculations

* Rocket performance calculations
* Feed system calculations
* Thermal calculations
* Structural calculations

### CAD

* Complete CAD package

### CFD

* CFD package
* Results
* Reports

### FEA

* Structural package
* Reports

### Simulation

* EcosimPro model
* MATLAB models

### Management Documents

* Statement of Work (SOW)
* Work Breakdown Structure (WBS)
* Deliverables Matrix
* Acceptance Criteria

---

# Questions for the Consultant

1. What is your educational background?

2. Have you worked on rocket propulsion projects before?

3. Have you designed liquid rocket engines?

4. Which propulsion cycles have you worked with?

5. Which of the listed software tools can you use professionally?

6. Can you perform NASA CEA analysis?

7. Can you perform CFD of combustion chambers and nozzles?

8. Can you perform FEA under thermal and pressure loads?

9. Can you develop EcosimPro propulsion models?

10. Can you create complete CAD assemblies?

11. Which portions of the project can you personally complete and which would require subcontracting?

12. Could you provide examples of similar propulsion, aerospace, turbomachinery, CFD, or thermal-fluid projects you have completed?

13. What deliverables would you realistically be able to provide?

14. What timeline would you estimate for completion?

15. What budget range would you estimate for a project of this scope?

Please be candid regarding your experience level, software capabilities, and the portions of the project you would feel comfortable delivering to a professional engineering standard. This will help determine whether there is a good fit for collaboration.

Seeking an experienced Electrical Design Engineer proficient in AutoCAD Electrical to create new electrical drawings and modify existing electrical documentation for industrial projects. The successful candidate must be able to work from existing drawing packages, mark-ups, and project requirements to produce accurate, construction-ready documentation. Deliverables must include complete AutoCAD Electrical project files, native DWG files, DXF files, and PDF drawing sets, with all references and project data maintained. Experience with industrial power, control systems, PLCs, motor control circuits, and instrumentation is highly desirable.