Best freelance GIS work online

Job Description:
We are looking for an experienced SaaS Product Designer to help modernize the interface and user experience of our desktop software application, GeoForgeX.

GeoForgeX is an AI-powered toolset for land surveyors that automates the process of converting legal descriptions (deeds) into CAD-ready geometry. Our goal is to dramatically improve efficiency in the surveying industry by reducing hours of manual drafting work into seconds.

We are seeking a designer who specializes in modern SaaS interfaces and productivity tools to help refine and improve the usability, workflow, and visual design of our Windows-based application.

Responsibilities:
Evaluate the current GeoForgeX application UI/UX
Redesign key areas of the interface for improved usability and clarity
Create modern SaaS-style layouts for dashboards, tools, and workflows
Improve navigation, workflow efficiency, and user interactions
Develop consistent UI components and design systems
Produce Figma prototypes and design assets for our developers to implement

Work collaboratively with our development team to bring designs into production

Ideal Candidate
We are looking for someone who has experience designing complex software tools, not just marketing websites.

Experience with the following is strongly preferred:
SaaS product design
Desktop application UX
Workflow-based software interfaces
Data-heavy dashboards
Productivity tools
Design systems and UI consistency
Bonus experience:
Engineering software
CAD or GIS software

AI-powered tools

Technical or professional industry applications
Deliverables
UI/UX improvements for existing application screens
New layout designs for key product workflows
Design system for consistent interface components
Figma prototypes for developer implementation

Project Scope:
Initial project will focus on improving and modernizing the current GeoForgeX interface, with the possibility of continued work as we release additional features and tools.

We are building a long-term platform and would prefer someone interested in ongoing collaboration as the product evolves.

About GeoForgeX

GeoForgeX is building the next generation of surveying software, using AI to automate repetitive drafting workflows and give professionals better tools to solve complex boundary problems.

Our mission is to modernize the surveying profession and eliminate inefficient manual drafting processes.

To Apply

Please include:
Examples of SaaS or software product designs
Links to Figma projects or UI case studies
Experience designing productivity tools or dashboards

OVERVIEW:
I run a local sealcoating, line striping, and crack filling company serving Erie County, New York. I need a detail-oriented freelancer to build me a targeted prospect list of property owners and decision-makers who own or manage parking lots in our service area.

WHAT I NEED:
A spreadsheet with contact details for businesses, organizations, and property owners who are likely to need parking lot maintenance. Focus on properties with asphalt/blacktop parking areas.

TARGET ROAD CORRIDORS (highest priority):
- Union Road (Buffalo/Cheektowaga/West Seneca area)
- Transit Road (Depew/Lancaster/Clarence/Amherst area)
- Sheridan Drive (Tonawanda/Amherst area)

PROPERTY TYPES TO TARGET:
- Strip malls, shopping plazas, and retail centers
- Hotels and motels
- Schools (public, private, charter) and daycares
- Churches and houses of worship
- Golf courses and country clubs
- Apartment complexes and HOAs
- Office parks and commercial buildings
- Restaurants with large parking lots
- Auto dealerships and car washes
- Parks and recreation facilities
- Warehouses and industrial properties
- Banks and credit unions
- Gas stations and convenience stores
- Medical offices, clinics, hospitals
- Funeral homes
- Supermarkets and grocery stores

DELIVERABLE FORMAT (Google Sheet or Excel):
- Business/Property Name
- Property Address
- Decision-Maker Name (owner, property manager, facilities manager)
- Phone Number
- Email Address
- Estimated Lot Size (small/medium/large if known)
- Property Type/Category
- Notes (e.g., lot condition visible from street view, last sealed, etc.)

IDEAL CANDIDATE:
- Experience with B2B lead generation or real estate research
- Familiar with Google Maps, LinkedIn, and public county records
- Attention to detail — accuracy matters more than volume
- Can use Erie County property records (https://www.erie.gov/gis) a plus

BUDGET: Open to hourly or fixed-price. Please include your rate and a sample of similar work you've done.

GOAL: 200–500 verified, actionable leads to start. Potential for ongoing work as we expand our service area.

We are seeking two talented actors for an upcoming commercial. One actor will play the role of a representative from GIS company, while the other will portray a potential customer. Ideal candidates should be comfortable with on-camera work and possess strong improvisational skills. Please submit your portfolio along with any relevant experience in commercial acting. This is a great opportunity to shine in a professional setting and showcase your acting skills!

A basic script will be provided beforehand.

*** ONE SHOOT DAY
4 HOURS MAX
$250 per actor

We are seeking a skilled GIS specialist to create a layered QGIS file for mapping mining resources using magnetic resonance data. The ideal candidate will have experience working with TIFF and shapefiles, as well as the ability to integrate open source information effectively. Your expertise will help us visualize critical resource data accurately. If you're passionate about GIS and have a strong background in mining resource mapping, we encourage you to apply.

Lead Full-Stack Engineer: "Uber for Auto Parts" (Logistics & Marketplace)

The Project
We are building a nationwide, multi-tenant marketplace for the South African automotive aftermarket. The platform will bridge the gap between mechanics, the general public, and parts suppliers. We need a Lead Engineer to architect the "Brain" of this operation: a decision engine that manages real-time inventory, orchestrates hyper-local and long-haul logistics via 3rd-party APIs, and provides a seamless "License Disc to Doorstep" experience.

The Tech Stack
Frontend: React Native (Cross-platform iOS/Android)

Backend: Node.js (NestJS) or Python (FastAPI/Django)

Database: PostgreSQL + Redis (for real-time tracking)

Infrastructure: AWS (Cape Town Region) or Azure (North) for POPIA compliance

Integrations: Google Maps, ShipLogic (The Courier Guy), Uber Direct, TecDoc API, and Peach Payments/Ozow, Debit Credit

Core Responsibilities
Logistics & Orchestration

Develop a logic layer that calculates Volumetric Weight vs. Distance to automatically route orders between Uber Direct (Bikes), Droppa (Vans), and The Courier Guy (Long-haul).

Implement real-time Webhook listeners for driver tracking, ETA updates, and delivery confirmations.

Automotive Data Architecture

Build a search engine capable of handling VIN (License Disc) scanning via PDF417 barcode decoding.

Integrate the TecDoc Web Service API to ensure 100% part-to-vehicle compatibility.

Create "Fuzzy Match" algorithms to standardize inconsistent supplier data into a "Golden Record" format.

Multi-Tenant Portal Development

Mechanic App: High-speed checkout, "Garage" profiles, and offline-first search capabilities.

Supplier Dashboard: Automated PDF Waybill generation. The system must trigger print-ready shipping labels via API the moment an order is placed.

Admin Analytics: A comprehensive dashboard to visualize heatmaps of part demand, driver bottlenecks, and regional sales trends.

South African Localization & Compliance
POPIA: Ensure all personal and vehicle data is encrypted and hosted locally to meet South African data residency requirements.

Connectivity: Optimize the app for "low-data" environments and areas with inconsistent 4G/5G reception.

Reverse Logistics: Architect a "One-Tap Return" flow that triggers reverse waybills and manages automated escrow refunds.

Candidate Requirements
Proven Experience: 3+ years in full-stack development, specifically building marketplaces or logistics/on-demand apps.

API Mastery: Deep experience with RESTful/GraphQL APIs and handling asynchronous webhooks.

Logistics Knowledge: Prior experience with GIS (Geographic Information Systems) or Fleet Management software is a massive advantage.

Architecture Mindset: Ability to build a scalable system that prevents "double-selling" (syncing app inventory with physical store sales in real-time).

Project Goals
Search results must return in under 400ms.

95% of orders must generate a courier waybill without human intervention.

Zero-error fitment logic to minimize the 15% industry-standard return rate.

We are a real estate company based in Buenos Aires, Argentina, and we are looking for a developer to help us build an interactive digital map for a residential area.

We already have a digital map of a neighborhood that is divided into individual lots (parcels). Our goal is to convert this map into an interactive tool where each lot can be clicked to display information about that property.

What we need

Each lot on the map should be clickable, and when clicked it should display information such as:

• Owner name
• Whether the property is part of our real estate portfolio
• Additional notes or status
• Visual indicators (for example: available, not available, client-owned, etc.)

Ideally, we want a clean visual interface where users can quickly understand which properties are part of our portfolio.

Inputs we can provide

We currently have:

• A digital map of the residential area (lots already divided)
• Property data that can be linked to each lot
• Ownership / portfolio information
• Basic UI references for how we want the information displayed

The map may be provided in formats such as a directory on one of our servers.

Expected output

An interactive map where:

• Each lot can be clicked
• Information is displayed visually
• The system can be updated when property data changes
• Ideally deployable on a website

Preferred technologies (but open to suggestions)

Experience with any of the following is helpful:

• Mapbox
• Leaflet
• GIS tools
• QGIS
• Web mapping frameworks
• JavaScript mapping libraries

Bonus (nice to have)

• Experience working with cadastral maps or parcel maps
• Real estate / property mapping projects
• Ability to help structure the property data

Project scope

Initial goal is to build the first working version of the map.
If successful, we may expand the system with additional features.

Please include examples of interactive map projects you have built.

GIS / Mapping Support for Landscape Architecture Projects

We are looking for a GIS professional to assist our landscape architecture firm with several mapping and data preparation tasks for projects located in Massachusetts.

The scope of work may include:

Setting up ArcGIS Field Maps for field data collection

Downloading and organizing field-collected GIS data and preparing clear, legible maps

Converting GIS data to AutoCAD or Adobe Illustrator formats for use in design drawings and presentations

Gathering and compiling publicly available GIS and environmental data for project sites in Massachusetts

Georeferencing historic maps and integrating them with current GIS base data

Experience with ArcGIS, AutoCAD, and Adobe Illustrator is preferred. Familiarity with Massachusetts public GIS data sources is a plus.

Work will be project-based and tasks will be assigned as needed.

Job Description: GIS Specialist – Route Optimization for Field Sales
Role Overview
We’re looking for a GIS specialist with expertise in route planning and optimization.
You will work with geotagged retail outlet data and help design efficient daily routes for our
Field Sales Officers (FSOs).
Your expertise will ensure FSOs can cover all assigned outlets effectively each day while
minimizing travel time and maximizing productivity.
Key Responsibilities
 Analyze geotagged retail outlet data including coordinates, photos, phone numbers, and
addresses.
 Design optimized daily visit routes for Field Sales Officers (e.g., 50 outlets per day) with
balanced distribution.
 Use GIS tools such as ArcGIS, QGIS, or similar platforms to create efficient route plans.
 Continuously refine routes based on real-world feedback, field constraints, and
operational challenges.
 Collaborate with internal teams to ensure route plans are practical and actionable for
field teams.
Requirements
 Proven experience in GIS-based route optimization.
 Strong proficiency in ArcGIS, QGIS, or similar GIS tools.
 Solid understanding of spatial data analysis and logistics planning.
 Experience working with field teams and adjusting routes based on ground realities.
 Strong communication skills with the ability to clearly explain route logic and
adjustments.
Additional Information
We are focused on creating practical, field-ready routes that align with operational KPIs, transforming geo-data into actionable business insights.

I am looking for a skilled Cartographer or Map Designer to develop a high-resolution, print-ready world map designed specifically for a 15-inch diameter globe. This map will be printed on 1.0mm (40 mil) magnetic sheets and digitally die-cut into puzzle pieces. The goal is a "National Geographic" aesthetic with extreme geographic accuracy and zero distortion when applied to a spherical surface.
Scope of Work:
Gore Map Projection: Create a digital map using an Interrupted Sinusoidal (Gore) Projection. The design must be divided into 12 or 18 gores (tapered strips) precisely sized for a 15-inch sphere (Circumference: ~47.12").
High-Detail Geographic Data: The map must include high-detail coastlines, international borders, major cities, rivers, and topography.
Layout for Printing: Arrange the gores to fit within 13" x 19" (Super B) or 11" x 17" (A3) sheet sizes to maximize material use on magnetic stock.
Cut-Line Generation: Provide a separate vector dieline layer for digital CNC cutting (Zünd/Kongsberg) that aligns perfectly with the printed geographic features.
Technical Requirements:
Mathematical Accuracy: Proven experience with spherical geometry and gore projections.
File Formats: Final deliverables must be in Adobe Illustrator (.ai) or Vector PDF format with organized layers.
Resolution: 300+ DPI for all raster elements (terrain/shading).
Bleed & Registration: Inclusion of 3mm bleeds and registration marks for precision digital cutting.
Preferred Qualifications:
Portfolio demonstrating prior globe-making or complex 3D-to-2D mapping projects.
Proficiency in GIS software (QGIS, ArcGIS) and graphic design suites (Adobe Creative Cloud).
Familiarity with NASA’s G.Projector or similar cartographic transformation tools.

We are looking for a developer to build a simple mobile trail map viewer for our website.

The viewer will run as a Progressive Web App (PWA) and allow customers to download and view trail maps on their phone with a GPS location dot.

The goal is a very simple outdoor map viewer, similar to a digital paper trail map used for hiking.

Main Features

Map Viewer
Full screen map display
Zoom and pan
GPS blue dot showing user location
Simple menu

My Maps

Shows maps already downloaded to the device.
Users can:
open a map

Remove a map from the device
Install Maps
Shows maps available for download.

Users can:

Select a map
Download it
Install it for offline use

Offline Requirement

Once a map is downloaded it must:
Open without internet connection
Allow zoom and pan
Display the user's GPS location
Technology Preference

We prefer using a lightweight JavaScript mapping library such as Leaflet.

The app should be implemented as a Progressive Web App (PWA) that works on:

iPhone Safari
Android Chrome

Important

We will provide the prepared map files.
The developer only needs to build the viewer and map download/install system.

Deliverables

Working PWA map viewer
Source code
Instructions for deploying and adding new maps

Screening Question
Please describe your experience building map-based web applications using Leaflet, MapLibre, or similar tools.

We are preparing to park a modular home on a residential lot in Waskesiu Lake, Saskatchewan, Canada and require assistance from someone with surveying, GIS, or mapping expertise.

Normally we would locate the survey pins, however the property is currently covered in snow and it will not be possible to locate them before installation.

We are therefore seeking a professional who can use digital mapping tools, satellite imagery, and nearby reference structures to help determine the correct position for placing our modular home on the lot.

Project Goal

Using our site plan and satellite imagery, we want to determine the accurate placement location for our modular home.

We intend to use the two neighboring adjacent mobile homes as reference points, allowing us to measure distances from their structures to establish the correct placement on our lot.

The final result should provide clear reference measurements we can replicate on-site during installation.

Important Placement Objectives

• Maintain accurate side-to-side placement within the lot boundaries
• Park the modular home as far back on the lot as reasonably possible
• Avoid trees located at the rear of the property
• Use neighboring mobile homes as measurement reference points

Our highest priority is accurate side setback positioning (left-to-right accuracy).

Technology & Methods We Expect to Use

We are hoping to work with someone comfortable using tools such as:

• Google Earth Pro
• GPS coordinate referencing
• Satellite imagery measurement tools
• GIS mapping software (QGIS, ArcGIS, or similar)

Helpful techniques may include:

• Calibrating satellite measurements using known building dimensions
• Measuring fixed reference points such as corners of neighboring structures
• Creating scaled overlays of the site plan on satellite imagery
• Establishing reference measurements that can be transferred to the ground using tape measures

Information We Will Provide

• Site plan showing lot boundaries and setbacks
• Property location and coordinates
• Satellite imagery references
• Approximate dimensions of the modular home
• Photos of neighboring homes if helpful

Expected Deliverables

We are looking for:

• A marked-up aerial image showing recommended placement
• Clear measurement references from neighboring structures
• Step-by-step instructions we can follow on-site

Optional but helpful:

• Annotated file from Google Earth or GIS software
• A simple placement diagram with measurement points

Ideal Skills

Candidates with experience in the following areas will be preferred:

• Land surveying concepts
• GIS mapping and spatial measurement
• Construction layout or building placement
• Remote site measurement using satellite imagery
• Property boundary interpretation
• Experience placing modular or manufactured homes

Experience with surveying or civil engineering would be a strong asset.

Project Type

Fixed price project.

I am in need of a PDF map that shows a 3-hour travel time buffer around my home area of York County, Pennsylvania, USA. It is intended to help me target clients for my consulting firm that works in natural resources, conservation, and watershed management. The travel buffer would certainly extend into northern Maryland and parts of West Virginia and maybe Virginia. On the map, in addition to the buffered area, I would want some background mapping overlayed, including state boundaries, county boundaries, major watersheds, and major towns/cities. The exact details of the cartography could be negotiated and worked on collaboratively. I would expect at least 3 rounds of revisions, where you provide a draft map, and I request changes and improvements. The final deliverable should formatted as an 8.5x11 PDF file.

• What is your familiarity with the GIS layers needed for the map, such as watershed boundaries in the United States?
• What is your experience creating a travel-time buffer, as opposed to just a distance buffer?
• Describe your recent experience with similar projects

Build automated system to identify land parcels likely needed for high-voltage transmission in the U.S. Collect planned transmission line projects from all RTOs/ISOs, map the corridors, overlay parcel boundaries, check what is for sale, confirm against permitting regimes, probably score whether a line will cross the territory.

Use geospatial data to predict routes on a microsite basis overlaid with existing grid topology.

Match against parcel data and likelihood that transmission line will cross the given parcel.

Score probability the parcel is needed.

Create an agent to update the analysis weekly and indicate new transmission lines confirmed and/or relevant parcels for sale. Or parcels that COULD be for sale that are critical to the infrastructure asset.

Skills:
Python
Geopandas
PostGIS
web scraping

Energy or real estate data experience preferred.

• What experience do you have working with different project types?
• Describe your recent experience with similar projects
• Please list any certifications related to this project

1. Project Overview
We have an existing beta version of an astrocartography app. We are looking to transition from basic ACG lines to a professional-grade relocation suite. The goal is to move beyond standard angular lines into complex spatial astrology (Local Space, Parans, Geodetics) and time-based mapping (Cyclocartography).
2. Technical Scope of Work
A. Advanced Astrological Modules
• Local Space Lines: Calculate and render Azimuthal projections (Horizon-based) as Great Circle paths originating from the user’s birth coordinates.
• Parans (Crossings): Identify latitudinal intersections where two planetary bodies reach an angle (Rising/Setting/Culminating) simultaneously. These must be rendered as horizontal latitudinal overlays.
• Midpoints: Calculate the mathematical midpoint between planetary longitudes and generate corresponding ACG lines for the midpoint "harmonics."
• Geodetic Equivalents: Implement fixed Earth-Sky mapping where 1^\circ of Geographic Longitude equals 1^\circ of Right Ascension of the Medium Coeli (RAMC).
B. Cyclocartography (Time-Mapping)
• Secondary Progressions: Integrate a time-slider that recalculates planetary positions based on "a day for a year" logic and updates the map lines dynamically.
• Transits: Overlay current real-time planetary positions onto the natal map.
C. UI/UX & 3D Rendering (MapKit)
• Globe Implementation: Transition the current 2D view to MKMapProjection.globe.
• Geodesic Accuracy: All lines must be rendered using MKGeodesicPolyline to ensure they wrap correctly around the Earth’s curvature without distortion.
• Performance: Optimize rendering for 50+ simultaneous vector lines (Planets + Midpoints + Parans) to ensure smooth 60fps rotation and zooming.
3. Developer Requirements
• Language: Swift / SwiftUI.
• Math: Strong background in Spherical Trigonometry and Coordinate Systems (ECF to Geodetic).
• Library Experience: Proven experience integrating the Swiss Ephemeris or NASA JPL data.
• GIS Skills: High proficiency in Apple MapKit, specifically custom MKOverlay and MKOverlayRenderer.
4. Reference Material
• Logic Reference: Solar Fire / Astrodienst (for calculation verification).
• UI Reference: Chani App (for aesthetic) / Mapbox Globe (for motion).

We are an infrastructure project management and firm seeking an experienced ArcGIS Online developer to build a real-time construction tracking dashboard system for transmission projects. The system will be built in our ArcGIS Online organizational account and will include feature layers, a web map, an ArcGIS Dashboard, Survey123 field collection forms, and Field Maps configuration.
We have completed all design work and are providing extremely detailed specifications including working HTML prototypes that show exactly what the finished dashboards should look like, a full implementation guide with field schemas and step-by-step build instructions, a Survey123 form framework document, and sample data. Your role is to configure and build these components in our live ArcGIS Online environment exactly to spec.

What We Provide (Attached to This Posting)
1. ArcGIS Implementation Guide (Word, 20+ pages) — complete build instructions: feature layer schemas with every field name, type, and purpose; web map configuration steps; ArcGIS Dashboard layout with widget types and positions; symbology rules; popup configurations
2. Survey123 & Construction Framework (Word, 15+ pages) — field data collection architecture, 6 Survey123 form specifications with field lists, validation rules, conditional logic, and photo requirements
3. ArcGIS Dashboard HTML Prototype — working interactive mock-up showing the exact target output: dark-themed map with route line, tower status dots (colour-coded), segment progress overlays, station markers, environmental zone hatching, SAR zones, waterbody crossing labels, KPI gauges, and route status legend
4. Daily Construction Report HTML Prototype — daily report dashboard showing crew deployment, tower activity, weather, NCRs, issues, and safety metrics
6. Daily Construction Report Build Spec (Word) — detailed specification for the daily report dashboard
7. SBTL Daily Construction Data Source (Excel, 9 tabs) — complete mock data for testing all dashboard elements

Deliverables.
1. All feature layers created and populated in our AGOL organization
2. Web Maps fully configured with symbology, popups, labels, bookmarks
11. ArcGIS Dashboards matching the HTML prototypes
12. Daily Construction Report Dashboard matching the HTML prototype
13. 6 Survey123 forms (XLSForm files + published to our AGOL)
14. Field Maps configuration with offline map areas
15. Brief documentation of any deviations from the spec with explanation
16. 30-minute walkthrough video demonstrating all components
17. Knowledge transfer session (1 hour video call) with our GIS Coordinator

need a professional mapping specialist to create a ready exhibit showing all open space in and around a subject property and surrounding area. The exhibit should use Google Maps, aerial imagery, parcel maps, and GIS-style labeling to clearly identify parks, preserved land, municipal open space, recreation areas, undeveloped tracts, nearby roads, surrounding neighborhoods, and adjacent properties. and bus and train stations in North New Jersey

The Final product must be polished, accurate, and suitable for use in court, zoning, redevelopment, or eminent domain matters.

Deliverables:

High-resolution PDF exhibit 24x36 and 11x17
Map with subject property clearly marked
Labels for all surrounding open space
Context map of surrounding area
Legend, scale, north arrow, and source references
Editable working file preferred
Ideal experience:
exhibits
GIS / parcel mapping
Google Earth / Google Maps visual exhibits
Source file
Planning, zoning, matters

Please send samples, pricing, and turnaround time.

• Describe your recent experience with similar projects
• What techniques would you use to clean a data set?
• What tools do you use for data mining and visualization?
• How do you deal with outliers or missing values in a dataset?

Project Overview: We are seeking an experienced Civil Infrastructure / Utility Design Engineer or Infrastructure CAD Specialist to prepare a complete planning and design of integrated utility infrastructure for an approved residential plot layout. The objective of this project is to design and coordinate all essential infrastructure utilities within the layout in a technically sound and constructible manner. The design must integrate the following services: sewerage network, water distribution network, electrical distribution network, telecommunication network, and gas distribution network. The freelancer will prepare detailed infrastructure planning drawings, coordinated layouts, hydraulic calculations, and cross sections ensuring proper integration between all services while maintaining safe clearances and practical construction feasibility.

Project Inputs (Provided by Client): The client will provide the approved plot layout drawing in AutoCAD or PDF format, road network and plot boundaries, plot dimensions and road widths, and any available local standards or planning references if applicable.

Scope of Work: The freelancer will be responsible for planning, designing, and preparing coordinated infrastructure layouts for all required systems within the approved layout.

Sewerage Network Design: The freelancer shall design the complete sewerage network for the layout ensuring efficient gravity flow and proper drainage planning. The scope includes sewer line routing along internal roads, determination of pipe diameters, design of pipe slopes for gravity flow, manhole placement and spacing, junction manholes at road intersections, identification of connection point to main sewer or disposal system, and coordination with other underground utilities. Required outputs include sewerage network layout drawing, manhole location plan, pipe diameter indications, and flow direction and slope indication.

Water Distribution Network Design: The freelancer must design the complete water supply system including storage structures, pumping system, hydraulic calculations, and distribution network. The scope includes routing of main and branch pipelines across the layout, pipe sizing based on projected demand, planning of distribution zones, placement of isolation valves and control valves, identification of water connections for plots or clusters, and coordination with other underground utilities. The design must also include underground sump design with capacity calculation and layout planning, overhead tank or overhead sump design with storage capacity calculation and location planning, hydraulic calculations for water demand and pressure distribution, transfer pump design including pump capacity and head calculations with pump selection recommendations, and pump room design including pump arrangement, valves, control panels, and maintenance access.

Electrical Distribution Network Design: The freelancer shall plan the electrical supply network for the layout including electrical cable routing, transformer location planning if applicable, feeder pillar or distribution box locations, underground cable routing, street lighting pole layout, and coordination with other utilities. Required outputs include electrical distribution layout, transformer and feeder pillar locations, street lighting layout, and cable routing drawing.

Telecommunication Network Planning: The freelancer shall plan the telecommunication infrastructure within the layout including telecom duct routing, fiber optic network planning, telecom chamber or handhole placement, and coordination with other utilities. Required outputs include telecom duct routing plan, handhole or chamber locations, and telecom infrastructure layout.

Gas Distribution Network Design: The freelancer shall design the gas pipeline distribution system within the layout including gas pipeline routing, distribution planning along internal roads, safety clearance considerations, and coordination with other utilities. Required outputs include gas pipeline routing layout and gas distribution network drawing.

Integrated Utility Coordination Layout: The freelancer must prepare a combined infrastructure layout showing all utilities together to ensure there are no clashes between services. This coordinated layout must include the sewer network, water distribution network, electrical network, telecom network, and gas pipeline network. The objective is to ensure proper utility corridor planning and appropriate spacing between services.

Cross Sections Requirement: The freelancer must prepare typical road cross sections showing the placement of all utilities within the road corridor. Cross sections must clearly indicate road width and boundaries, sewer line location and depth, water pipeline location, electrical cable or duct location, telecom duct location, gas pipeline location, and vertical and horizontal clearances between utilities. These cross sections must demonstrate how all services are installed within the right of way of the road.

Final Deliverables: The completed project must be submitted in PDF format for all disciplines. The freelancer must submit sewerage network layout drawing, water distribution layout drawing, underground sump design drawing, overhead tank or overhead sump design drawing, hydraulic calculation report for the water distribution system, transfer pump design details, pump room layout drawing, electrical distribution layout drawing, telecommunication layout drawing, gas pipeline layout drawing, integrated utility coordination layout drawing, and typical utility road cross sections. Each drawing must include proper scale, clear labeling, legends and symbols, title block, and identification of each utility discipline.

Software Requirements: AutoCAD is mandatory and Civil 3D is preferred but optional.

Required Skills: Civil engineering infrastructure design, utility network planning, township infrastructure design, AutoCAD drafting, and underground utility coordination.

Preferred Experience: Freelancers with experience in residential layout infrastructure design, township planning projects, municipal infrastructure layouts, and utility corridor planning will be preferred.

Expected Outcome: The final result should be a complete and coordinated infrastructure utility design package for the approved plot layout including utility network plans, storage and pumping infrastructure design, hydraulic calculations, integrated utility coordination layout, and utility cross sections. All documents must be submitted as clear professional PDF drawings suitable for engineering review and planning purposes.

Proposal Requirements: Interested freelancers should include examples of similar infrastructure design projects completed, estimated timeline for completion, proposed methodology or approach, and quotation for the complete scope of work.

Project Timeline: Timeline will be mutually agreed depending on the size and complexity of the layout.

I need civil / site-plan / grading freelancer to prepare a desktop height-verification package for a residential pergola permit revision in San Francisco, CA.

I need a reviewer-friendly preliminary package based on existing permit PDFs, manufacturer pergola drawings, project photos, and public online sources.

Project issue
The City wants pergola height measured from existing grade to top of roof. Our current plan set needs a clearer basis of measurement and a cleaner graphic explanation.

We are seeking an experienced developer to design and build an interactive GIS dashboard for exploring trends within a multi-year environmental observation dataset.

The application will allow users to interact with monitoring locations through a map interface and explore associated time-series data and trend summaries through dynamic visualizations. The goal is to create a public-facing dashboard that combines geospatial data, analytics, and interactive visualization to make complex datasets easier to explore.

Expected functionality may include an interactive map displaying monitoring locations, the ability to select parameters or indicators, time-series charts for selected locations or geographic groupings, display of trend results and summary tables, and integration of maps, charts, and filters within a single web-based dashboard.

Developers may use tools such as Python (Dash, Plotly, Streamlit), R/Shiny, ArcGIS web dashboards or Experience Builder, or other modern frameworks for interactive data visualization. Experience working with scientific, environmental, or geospatial datasets is strongly preferred.

This role is intended for an independent developer who will personally perform the work. Agencies or firms submitting on behalf of a team are not a fit for this engagement.

To be considered, your proposal must include links to at least three interactive dashboards or data applications you have worked on. At least one example must be a live interactive dashboard or working demo rather than screenshots.

For each example, briefly describe your specific role in the project, the technologies used, and the components you personally implemented such as mapping, analytics, charts, or data pipelines.

Please also briefly describe one technical challenge you encountered in a dashboard project and how you solved it.

In the first line of your proposal, include the phrase “Interactive GIS dashboard developer” so we know you have read the full description. Proposals that do not include this phrase may not be reviewed.

This project will likely begin with a short scoping or prototype phase, with potential for expanded development depending on project progression.

We're building a drone LiDAR intelligence platform that continuously scans residential rooftops across Denver metro and scores them for hail damage and age using AI. We fly DJI Matrice 400 drones with Zenmuse L3 LiDAR sensors at 150m altitude. DJI Terra Pro processes the raw L3 data into classified .LAS point clouds. Your job starts there.
This is a focused 6–8 week contract with a defined deliverable. We have a CTO who will integrate your output into our production stack — you're building the model, not the surrounding infrastructure. We need someone who has worked with LiDAR point cloud data before. This is not a learning opportunity.

What you're building:
1. Roof segmentation pipeline
Takes classified .LAS output from DJI Terra (Zenmuse L3, 150m AGL, Denver residential) and isolates individual roof polygons per parcel. Must handle:

Complex rooflines, dormers, hip roofs, gable roofs
Attached and semi-detached structures
Tree occlusion and partial canopy interference
Dense urban and suburban residential environments

Output: per-property roof polygon with plane-level segmentation, tied to parcel boundary via geospatial join.
2. Hail damage and age classifier
Scores each roof plane on:

Hail damage severity (none / minor / moderate / severe)
Estimated remaining useful life
Material type where determinable from point density and return characteristics
Confidence score per assessment

Output: property-level damage score with plane-level breakdowns and confidence weighting.
3. Validation framework
Accuracy metrics and confidence thresholds validated against ground truth. We have access to:

Historical contractor inspection reports and insurance claim files from 25+ Denver roofing partners
HailTrace property-level hail history for Denver metro
Before/after point cloud diffs from storm response flights (available Month 3+)

Your model needs to be accurate enough to be defensible to insurance carriers by Year 2. We're not asking for carrier-grade actuarial precision on Day 1 — we're asking for a solid v1 that improves as our proprietary dataset grows.
4. Retraining pipeline
The model will be retrained continuously as our proprietary data accumulates — contractor inspection reports correlated with scan data, post-storm before/after diffs, carrier claims data. Build it to be retrained, not frozen.
5. Clean handoff to CTO
Documented code, retraining guide, 2-hour technical handoff session. Our CTO is a strong AI systems engineer — not a geospatial specialist. He needs to own this after you're done.

Training data you'll have access to:
Available immediately:

USGS 3DEP LiDAR coverage for Denver metro — free, download today
ISPRS benchmark datasets for building detection and roof segmentation
Published academic labeled roof datasets (IEEE/MDPI roof classification dataset — 4,500+ labeled roofs)
HailTrace property-level hail event history for Denver — storm date, size, location
Historical contractor inspection reports and Xactimate claim files from Denver roofing partners

Available Month 3–4:

Our actual Zenmuse L3 scan data from Denver baseline flights
Before/after point cloud diffs from first storm response flights
Contractor ground-truth validation of scored properties

Your first 4–6 weeks use public and partner data. Final tuning uses our proprietary L3 data. The model you deliver will be retrained on increasingly rich proprietary data after handoff — that's by design.

Required experience:

Point cloud processing — PDAL, Open3D, or equivalent
Building and roof segmentation from airborne LiDAR
ML model training and validation in Python
Geospatial data formats — .LAS, .LAZ, GeoJSON, GeoTIFF, WKT
At least one segmentation framework — PointNet++, RandLA-Net, or similar
Geospatial joins and parcel boundary matching


Nice to have:

Experience with drone-acquired LiDAR specifically vs terrestrial or manned aircraft
Familiarity with hail damage signatures in LiDAR return characteristics
Experience correlating point cloud data with ground-truth inspection reports
Insurance, proptech, or roofing industry background
PDAL pipeline automation experience


What we're NOT looking for:

RGB photogrammetry specialists without LiDAR experience
General ML engineers without geospatial background
Anyone who needs time to learn point cloud processing during the contract
Anyone proposing to use Nearmap or CAPE Analytics — we are building LiDAR-native, not RGB-based scoring


Deliverables:

Roof segmentation pipeline — Python, documented, production-ready
Damage and age classifier v1 — trained, validated, documented
Validation report — accuracy metrics, confidence thresholds, known limitations
Retraining pipeline and guide for CTO
2-hour technical handoff session with CTO


Milestone payment structure:

Milestone 1 (Week 2): Roof segmentation pipeline working on USGS 3DEP Denver data — 25%
Milestone 2 (Week 5): Damage classifier v1 trained and validated on available datasets — 50%
Milestone 3 (Week 7–8): Final tuning on L3 data, handoff complete — 25%


Engagement:

6–8 weeks
35–40 hrs/week
100% remote
Start: immediate
Milestone-based payments


To apply, include:

One specific LiDAR project you've worked on — input data, what you built, accuracy achieved
Your preferred tech stack for roof segmentation from airborne LiDAR
Your approach to training a damage classifier when labeled hail damage LiDAR data is limited
Your hourly rate

Applications without a specific LiDAR project example will not be reviewed.

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