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9 projects published for past 72 hours.

Job Title	Budget	Published
Engineer with Experience in Electromagnetics	8 - 10 USD / hr	1 day ago	Client Rank - Excellent Payment method verified $130 127 total spent 141 hires, 85 active 42 jobs posted 100% hire rate, 1 open job 78.39 /hr avg hourly rate paid 342 hours paid 4.88 of 38 reviews Registered: Feb 19, 2023 United States Chicago 13:37 5
We are looking for an experienced engineer with a strong background in electromagnetics and firmware development to support the development of a variable-resistance mechanism for a new hardware product. Additional project details will be discussed after reviewing candidate profiles. Requirements: Solid experience in electromagnetics, actuator control, haptics, or force-feedback systems. Proficient in embedded firmware development Experience working on prototypes or real hardware development projects. Ability to provide examples or a portfolio of relevant work. Experience with software or UI development is a plus. Hourly rate: 8 - 10 USD 1 day ago Client's recent history (50+ works) 20 hours No feedback given Oct 2025 FIXED $180.00 Trial 5 hours No feedback given Oct 2025 FIXED $100.00 5 hours No feedback given Oct 2025 FIXED $135.00 5 hours No feedback given Oct 2025 FIXED $40.00 5 hours No feedback given Oct 2025 FIXED $35.00 5 hours No feedback given Oct 2025 FIXED $40.00 5 hours No feedback given Oct 2025 5 hours No feedback given Sep 2025 5 hours No feedback given Sep 2025 5 hours No feedback given Sep 2025 Trial 5 hours No feedback given Sep 2025 5 hours No feedback given Sep 2025 FIXED $40.00 5 hours No feedback given Sep 2025 FIXED $246.75 5 hours No feedback given Sep 2025 5 hours No feedback given Sep 2025 5 hours No feedback given Aug 2025 FIXED $40.00 5 hours No feedback given Aug 2025 FIXED $35.00 5 hours No feedback given Aug 2025 5 hours No feedback given Aug 2025 FIXED $50.00 5 hours No feedback given Aug 2025 FIXED $50.00 5 hours No feedback given Aug 2025 5 hours No feedback given Aug 2025 FIXED $50.00 5 hours No feedback given Aug 2025 5 hours No feedback given Aug 2025 5 hours No feedback given Aug 2025 5 Hour Trial No feedback given Aug 2025 FIXED $352.50 5 hours No feedback given Aug 2025 FIXED $50.00 5 hours No feedback given Aug 2025 FIXED $60.00 Trial No feedback given Aug 2025 FIXED $600.00 Trial with Phuong No feedback given Aug 2025 FIXED $50.00 Trial with Phuong No feedback given Aug 2025 FIXED $15.00 $9 per hour for 5 hours No feedback given Jul 2025 FIXED $45.00 Trial job No feedback given Jul 2025 Trial No feedback given Jul 2025 10 hours No feedback given Jul 2025 FIXED $620.00 Trial Job - will send more information if accepted (detailed project management) No feedback given Jul 2025 FIXED $60.00 Trial Job - will send more information if accepted (detailed project management) No feedback given Jul 2025 FIXED $25.00 Trial Job - will send more information if accepted (detailed project management) No feedback given Jul 2025 Trial Job (Trying Again) No feedback given Jul 2025 FIXED $15.00 Trial job No feedback given Jul 2025 FIXED $4,362.20 Trial with Phuong No feedback given Aug 2025 - Dec 2025 FIXED $165.00 5 Hour Trial No feedback given Aug 2025 - Nov 2025 FIXED $50.00 5 hours To freelancer: 5 Aug 2025 - Nov 2025 FIXED $50.00 Embedded System Product Design for New Product Development (Sensor-Heavy) - Trial Job No feedback given To client: 5 Jul 2025 - Oct 2025 FIXED $225.00 Trial Job (Sending Again) No feedback given Jul 2025 - Oct 2025 FIXED $5.00 5 hours To freelancer: 5 To client: 4.25 Overall project scope was completed and the client is good. I will look forward to actual development with them again so… Overall project scope was completed and the client is good. I will look forward to actual development with them again soon in near future Aug 2025 - Oct 2025 FIXED $40.00 5 Hour Trial No feedback given To client: 4.6 Aug 2025 - Sep 2025 FIXED $40.00 5 hours No feedback given To client: 5 The project with Scott and Lai was overall good. Communication was mostly clear, and payments were timely. There were a … The project with Scott and Lai was overall good. Communication was mostly clear, and payments were timely. There were a few challenges, but we were able to resolve them. Aug 2025 - Sep 2025 FIXED $40.00 5 hours To freelancer: 5 To client: 4 Aug 2025 - Aug 2025 FIXED $40.00 Trial Job No feedback given To client: 5 Jul 2025 - Jul 2025 FIXED $25.00 View more (48) Web, Mobile & Software Dev, Web Development Open project
RF / LoRaWAN Antenna Engineer	45 - 85 USD / hr	4 days ago	Client Rank - Medium Payment method verified Phone number verified 2 jobs posted 5 open job no reviews Registered: Mar 25, 2025 Canada Edam 13:37 3
📌 About the Project We are developing Ori Cattle Tags, a rugged livestock tracking device with: LoRaWAN Class A IMU + Temperature sensors Ultra-low-power MCU Replaceable battery Long-range pasture communication Large-scale pilot tests (50,000+ head in pipeline) Your role: Ensure maximum LoRaWAN range, antenna tuning, and consistent communication across large ranch environments (1–10 km). --- 🛠️ Your Responsibilities 1. Antenna Design & Tuning Design OR tune PCB + external antennas for NA915 band Optimize for rugged outdoor environments Match impedance Reduce packet loss 2. LoRaWAN RF Performance Improve uplink reliability Set correct spreading factors (SF7–SF12) Adjust power levels pre-manufacture Confirm link budgets 3. Field Simulation / Testing Simulate cattle-mount position and signal absorption Identify environmental blockers (trees, terrain, metal, humidity) Prepare guidelines for optimal range 4. Manufacturing Prep Provide required design specs for enclosure/templates Tune final antenna after plastic enclosure is modeled Work with hardware engineer for integration --- 📦 Deliverables Tuned antenna design (or modification to our existing design) S11 / VSWR reports NA915 compliance Link budget analysis Recommended gateway setup for ranches Range test reports (bench + field simulation) Documentation for manufacturing --- 🔧 Required Experience LoRaWAN (NA915) RF design & tuning PCB antenna design Antenna matching Semtech/Murata LoRa radios Outdoor IoT devices RF simulation software (HFSS, CST, etc.) Range testing --- ⏳ Timeline 4–8 weeks, milestone-based: 1. Antenna simulation & initial tuning 2. PCB modification recommendations 3. LoRaWAN performance testing 4. Environmental/rural range analysis 5. Manufacturing documentation --- 💰 Compensation $45/hr – $85/hr Higher rate justified for real RF specialists. --- 🐂 About Us Ori is building an emotional-AI ecosystem across livestock, wearables, and education. Our livestock division is expanding rapidly with large ranches (10k–30k head) onboarding for pilots. Your work will directly impact thousands of devices deployed at scale. --- 📬 To Apply Please include: LoRaWAN devices you've tuned Antenna designs you've built or optimized RF simulation examples Range testing experience Your availability Hourly rate: 45 - 85 USD 4 days ago Engineering & Architecture, Electrical & Electronic Engineering Open project
Drone SAR Path Planning Upgrade	15 - 25 USD / hr	5 days ago	Client Rank - Good Payment method verified $2 245 total spent 3 hires 1 open job 5.00 of 3 reviews Registered: Jun 16, 2025 Qatar 4
I have a working grid-based environment search-and-rescue drone path planner that combines A* with a reinforcement-learning layer. It already performs reasonably well, but I want it to outperform current state-of-the-art solutions in three concrete areas: increased efficiency (shorter mission time), better obstacle avoidance, and superior route optimisation. On top of that, the reinforcement-learning module must introduce a truly novel power-saving approach so that flight endurance is extended without compromising performance. The existing code is clean and fully documented; you will receive the repo plus a small set of benchmark scenarios. Your mandate is to redesign the RL reward structure, refine or replace the current A* heuristics, and integrate any other innovative techniques you deem fit—multi-agent coordination, dynamic re-planning, hybrid meta-heuristics, etc.—as long as the final system: • Clears every benchmark faster than the baseline while consuming less simulated energy • Shows measurable gains in obstacle avoidance (fewer collisions or near misses) • Produces routes with lower total cost than the baseline and at least one leading academic reference implementation Provide the updated source, a short technical report with comparative plots, and a reproducible test script so I can verify the results locally. The project is self-contained; no field deployment is required at this stage, only simulation. If you have experience with RL libraries (e.g., TensorFlow, PyTorch), heuristic search tuning, or drone power modelling, I would love to see how you can push this algorithm beyond current limits. Skills: Python, Test Automation, Machine Learning (ML), Robotics, Software Development, Artificial Intelligence, Data Visualization, Simulation, Software Engineering, Reinforcement Learning Hourly rate: 15 - 25 USD 5 days ago Websites, IT & Software, Engineering & Science, Python, Test Automation, Software Development, Artificial Intelligence, Data Visualization, Editing, Machine Learning (ML), Robotics, Simulation, Software Engineering, Reinforcement Learning Open project
CAE/CFD/FEA user: Evaluate AI-Driven Simulation Workflows	20 - 200 USD / hr	7 days ago	Client Rank - Good Payment method verified Phone number verified $2 743 total spent 6 hires, 49 active 6 jobs posted 100% hire rate, 8 open job 55.84 /hr avg hourly rate paid 58 hours paid no reviews Registered: Nov 7, 2025 United States San Francisco 13:37 4
We are seeking an experienced professional to test AI agents integrated with CAE tools. More on me and the company: https://www.linkedin.com/in/noahweber123/ NOTE: this is a duplicate of this job post, if you applied here and were hired, please do not apply here and ignore my invite: https://www.upwork.com/jobs/~021990173852664656322 The role involves evaluating the performance of AI tool within environments like Ansys, COMSOL and Abaqus, and providing detailed feedback. This is a short-term project with the potential for long-term engagement. We are looking for someone that is proficient in Ansys Mechanical, Ansys Fluent, Ansys AEDT, Abaqus or Comsol. Ideal candidate has ran jobs and projects using atleast one of these software. The first hour of our product testing will be them accessing our AI tool and then using the AI tool within the afromentioned environements. The ideal user will send some of the projects that they did with these software. CAE/CFD/Simulation experience is required. On our AI tool: 1. https://www.linkedin.com/posts/cosmon-inc_engineering-comsol-automation-ugcPost-7399351200913207296-tbAj?utm_source=share&utm_medium=member_desktop&rcm=ACoAACH3GzkB2vlQB8HDmaB_iNVM-HFPwCOhVnc 2. Case study: https://www.cosmon.com/insights/multi-agent-systems-for-finite-element-analysis 3. Video demo: https://youtu.be/3eeXLC0hd20?si=YD6UVwH250R-sAQE Please submit your portfolio of previous projects using Ansys, COMSOL or Abaqus and we will reach back out. Hourly rate: 20 - 200 USD 7 days ago Client's recent history (3 works) Jobs in progress (2) Landing Page Redesign for Product Demo Engagement (FRAMER) Nov 2025 - Present 40 hrs @ $0.00/hr Video Editor for CAD/CAE Software Gifs Nov 2025 - Present 11 hrs @ $0.00/hr View more (-3) Product Tester for AI Agents in CAE tools To freelancer: 5 To client: 5 Good Communication Nov 2025 - Nov 2025 2 hrs @ $0.00/hr Engineering & Architecture, Civil & Structural Engineering Open project
CAE/Simulation/CFD Product Tester for AI in CAE/Simulation/CFD	20 - 200 USD / hr	8 days ago	Client Rank - Good Payment method verified Phone number verified $2 743 total spent 5 hires, 49 active 6 jobs posted 83% hire rate, 7 open job 55.84 /hr avg hourly rate paid 58 hours paid no reviews Registered: Nov 7, 2025 United States San Francisco 13:37 4
We are seeking an experienced professional to test AI agents integrated with CAE tools. The role involves evaluating the performance of AI tool within environments like Ansys, COMSOL and Abaqus, and providing detailed feedback. This is a short-term project with the potential for long-term engagement. We are looking for someone that is proficient in Ansys Mechanical, Ansys Fluent, Ansys AEDT, Abaqus or Comsol. Ideal candidate has ran jobs and projects using atleast one of these software. The first hour of our product testing will be them accessing our AI tool and then using the AI tool within the afromentioned environements. The ideal user will send some of the projects that they did with these software. CAE/CFD/Simulation experience is required. On our AI tool: 1. https://www.linkedin.com/posts/cosmon-inc_engineering-comsol-automation-ugcPost-7399351200913207296-tbAj?utm_source=share&utm_medium=member_desktop&rcm=ACoAACH3GzkB2vlQB8HDmaB_iNVM-HFPwCOhVnc 2. Case study: https://www.cosmon.com/insights/multi-agent-systems-for-finite-element-analysis 3. Video demo: https://youtu.be/3eeXLC0hd20?si=YD6UVwH250R-sAQE Please submit your portfolio of previous projects using Ansys, COMSOL or Abaqus and we will reach back out. Hourly rate: 20 - 200 USD 8 days ago Client's recent history (3 works) Jobs in progress (2) Landing Page Redesign for Product Demo Engagement (FRAMER) Nov 2025 - Present 40 hrs @ $0.00/hr Video Editor for CAD/CAE Software Gifs Nov 2025 - Present 11 hrs @ $0.00/hr View more (-3) Product Tester for AI Agents in CAE tools To freelancer: 5 To client: 5 Good Communication Nov 2025 - Nov 2025 2 hrs @ $0.00/hr Engineering & Architecture, Energy & Mechanical Engineering Open project
Independent Sales Agent for Simulation Software in Maritime, Defence, and Aerospace	not specified	8 days ago	Client Rank - Risky Payment method not verified Phone number verified 1 open job Finland 21:37 1
We provide an advanced simulation platform that integrates AI, robotics, and video game technology. Located in Helsinki, we serve a variety of industries, including maritime, robotics, defense, automotive, and mining. With controlled simulations, we accelerate the development cycles and provide scalable solutions for testing, training, and validating autonomous systems and AI algorithms. On a mission to accelerate AI innovation, we're currently on the lookout for a driven and well-connected Sales Consultant to support our business development efforts in the UK and in France. This is an independent consulting role aimed at expanding our reach within focus industries maritime and defence, with a preference for candidates experienced in software tooling or simulation technology. As a local sales consultant, your role will focus on identifying new business opportunities and driving them to closure in alignment with AILiveSims sales strategy. Key responsibilities include: -Collect and report local market intelligence (e.g. customer needs, competitive landscape) -Build and nurture relationships with prospects and industry contacts -Prospect and generate leads through targeted outreach and networking -Guide qualified opportunities to a successful closure through the full sales cycle with the internal AILiveSim team -Represent AILiveSim locally with prospects, customers, and other stakeholders -Attend industry events, exhibitions, or trade shows to promote our solutions -Share market feedback to shape regional sales strategies and go-to-market plans Who we’re looking for You have an established network in defence, maritime, or adjacent industries You bring experience in selling software or simulation solutions You're proactive, independent, and comfortable working on commission model You're a confident communicator and trusted presence in your market. You’re based locally in the region where you’ll operate What we offer Motivating success based compensation plan. Onboarding and training in Helsinki, Finland. Insight into cutting-edge technology. Independent work with the support of a highly motivated AILiveSim team. This is a commission-based consulting opportunity where you'll collaborate closely with a passionate, tight-knit team building cutting-edge simulation technology for AI development. You'll have direct access to our internal teams to support your efforts and the chance to make a meaningful impact on our regional growth. While the setup is lean by design, we value strong, long-term partnerships and are open to revisiting the structure as the collaboration evolves. Budget: not specified 8 days ago Sales & Marketing, Lead Generation & Telemarketing Open project
Ansys-Maxwell for Analyzing and Optimizing Motors Modules	5,000 USD	9 days ago	Client Rank - Excellent Payment method verified $26 220 total spent 67 hires, 29 active 125 jobs posted 54% hire rate, 5 open job 4.20 of 33 reviews Company size: 10 Registered: Dec 14, 2018 Australia AU.01 06:37 5
We are seeking a talented engineer who is experienced in using Ansys-Maxwell for motor design. He/She will verify and optimize motor modules in 2D and 3D using Magneto-static Transient Analysis and Parametric Optimization. The project will be made out of 15 milestones. It will involve losses calculations and the use of optimization tools. Client's questions: Describe your recent experience with similar projects Fixed budget: 5,000 USD 9 days ago Client's recent history (50+ works) Jobs in progress (19) Ansys FEA: Optimal Cell Shape of a Lattice Structure Sep 2025 - Present FIXED $550.00 Ansys-Maxwell for Analyzing and Optimizing Motors Modules Aug 2025 - Present FIXED $880.00 Ansys-Maxwell for Analyzing Motors Modules Aug 2025 - Present FIXED $450.00 Ansys-Maxwell for Analyzing Motors Modules Aug 2025 - Present 3D Modeling & Rendering of Mechanical & Electrical Engineering Components Apr 2025 - Present FIXED $1,054.40 3D Modeling & Rendering of Mechanical & Electrical Engineering Components Jul 2024 - Present FIXED $300.00 Ansys-Thermal Analysis of Electric Moror Mar 2024 - Present FIXED $625.00 Ansys-Motor Design-Linear Motor Modules Nov 2023 - Present FIXED $100.00 Ansys-Axial Flux Motor Simulation and Optimization Aug 2023 - Present FIXED $1,335.00 Ansys-CFD-Aerodynamics Adjoint Optimization Drag and Lift Coefficients May 2023 - Present FIXED $80.00 Ansys-CFD-Aerodynamics Adjoint Optimization Drag and Lift Coefficients Feb 2023 - Present FIXED $75.00 Ansys-Motor Design-Flux Switching Jan 2023 - Present FIXED $554.75 Battery Cell Search/Survey, Battery Design & Ansys Thermal Analysis Jan 2023 - Present FIXED $478.70 Reinforced Concrete & Pre-Stressed Bridge Beam Dynamic FEA using Ansys Nov 2022 - Present FIXED $791.40 Autodesk Inventor Automated Tilting Table Nov 2022 - Present FIXED $70.00 Autodesk Inventor-Concrete Beam Mold Nov 2022 - Present FIXED $150.00 Carbon Fiber Truss Static and Dynamic Analysis using Ansys Oct 2022 - Present FIXED $120.00 Motor Design BLDC Ansys FEA Sep 2022 - Present FIXED $554.00 Bus CFD (FEA) using Ansys May 2022 - Present FIXED $189.25 View more (14) Tractor Optimization No feedback given Aug 2023 FIXED $360.00 Ansys FEA: Optimal Cell Shape of a Lattice Structure No feedback given To client: 2.95 The client was very strict about minor report writing details and formatting, even though all the main work and report d… The client was very strict about minor report writing details and formatting, even though all the main work and report details and requirements were fully met. Despite this, payment was withheld for a while. Sep 2025 - Oct 2025 FIXED $150.00 Ansys-Maxwell for Analyzing and Optimizing Motors Modules No feedback given To client: 5 It was a smooth collaboration. Mr. Sam provided clear requirements and timely payment, which made the workflow efficient… It was a smooth collaboration. Mr. Sam provided clear requirements and timely payment, which made the workflow efficient. I appreciate the communication and professionalism shown during this project. Looking forward to working together again if opportunities arise. Sep 2025 - Sep 2025 Thermal Analysis & Aerodynamic Brake Cooling (CFD) No feedback given Sep 2022 - Aug 2025 FIXED $125.00 Ansys-Maxwell for Analyzing Motors Modules No feedback given To client: 3.95 Jun 2025 - Jul 2025 FIXED $200.00 Ansys-Fluent Cooling No feedback given To client: 5 Apr 2025 - Jul 2025 FIXED $250.00 Ansys-Maxwell for Analyzing Motors Modules No feedback given To client: 4.15 Was nice working with the client. Very clear on what the project requirements are, and prompt payment. Nov 2024 - Mar 2025 FIXED $1,854.40 Ansys Radial-Flux IPM Motor Design No feedback given To client: 2.4 We had been working together for over 2 years. Especially during the earthquake in my country, he kept the project waiti… We had been working together for over 2 years. Especially during the earthquake in my country, he kept the project waiting for me. Then when we started working, he suddenly didn't answer me for a long time. I sent him a message because I was worried about his health and he said we could work on a new project. I received payments for some stages of the project. When I sent him a message for the last job, he didn't let me know again. I didn't receive payment because he didn't answer me again for about 1 month. Money is not a problem, I learned a lot while working with him, but it is not ethical that he hasn't responded at all lately. I really liked working with him, but the recent situation caused me to terminate the contract. I sent him the reports of the projects I did, I need to get paid to send the analysis files. Nov 2024 - Feb 2025 FIXED $700.00 3D Modeling & Rendering of Mechanical & Electrical Engineering Components To freelancer: 3 To client: 5 Overall, it was a good experience. May 2024 - Jul 2024 FIXED $50.00 Ansys-Magnetic Gear Simulation and Optimization No feedback given To client: 5 Aug 2023 - May 2024 FIXED $1,059.00 Inventor-Water Circulation and Water Filtration No feedback given To client: 1.85 Mar 2023 - May 2024 FIXED $75.00 Ansys-Thermal Analysis of Electric Moror To freelancer: 3.5 To client: 5 Good Jan 2024 - Mar 2024 FIXED $457.50 Thermal Analysis & Aerodynamic Brake Cooling (CFD) To freelancer: 3.05 Jan 2024 - Mar 2024 FIXED $300.00 Ansys Structural FEA of Pre-stressed Slim bridge No feedback given Nov 2023 - Feb 2024 FIXED $150.00 Ansys-Motor Design-Reluctance Motor No feedback given To client: 4 Working with Sam on the project became difficult due to his insistence on a sinusoidal waveform for the SRM motor. I lef… Working with Sam on the project became difficult due to his insistence on a sinusoidal waveform for the SRM motor. I left after my alternative approach failed to work (I spent 2 weeks on this project). Despite Sam's support, I couldn't meet his expectations and refunded the payment. Sam is a good collaborator, but we faced challenges. Jul 2023 - Oct 2023 FIXED $50.00 Ansys-4-Pole Permanent Magnet Generator Simulation and Optimization To freelancer: 4.35 To client: 5 Great experience with client. Very easy to work with him. Jul 2023 - Sep 2023 FIXED $60.00 Carbon Fiber Truss Static and Dynamic Analysis using Ansys No feedback given To client: 4.3 Sep 2022 - Aug 2023 FIXED $180.00 APSS as discussed No feedback given To client: 3.85 He gives a clear and detailed description of the project and tries to answer all questions. He is an honest and fair cli… He gives a clear and detailed description of the project and tries to answer all questions. He is an honest and fair client, the payment of benefits cannot be in doubt. I think that two or more people manage the account; some of them have terrible communication, but some of them are very nice to work with. I recommend using the latter people more often in the Upwork world! Nov 2022 - Jul 2023 FIXED $454.00 Motor Design BLDC Ansys FEA To freelancer: 4.5 Ian is committed to producing good results and he works for it even if that means repeating the work. I enjoyed working … Ian is committed to producing good results and he works for it even if that means repeating the work. I enjoyed working with him To client: 5 Sam is a great employer! He demonstrates the objectives of the projects in a clear way, he is also able to analyze and d… Sam is a great employer! He demonstrates the objectives of the projects in a clear way, he is also able to analyze and discuss the results with a highly technical argument and makes payments correctly and fairly. Sam, it's been a pleasure working for you. Mar 2023 - Jul 2023 FIXED $367.50 Ansys Radial-Flux IPM Motor Design No feedback given To client: 4.15 WORKS AS MANAGER OF A VERY LARGE PROJECT. I CAN'T FINISH THE PROJECT BECAUSE THERE WAS AN EARTHQUAKE IN MY COUNTRY BUT m… WORKS AS MANAGER OF A VERY LARGE PROJECT. I CAN'T FINISH THE PROJECT BECAUSE THERE WAS AN EARTHQUAKE IN MY COUNTRY BUT mR. SAM BAN WAS VERY KIND AND PATIENT. Dec 2022 - Apr 2023 FIXED $835.00 Autodesk Inventor-Access Control System To freelancer: 2.5 This is my second review of Riaz..... (1) He never adhere to schedules that he himself proposed. He is always late by we… This is my second review of Riaz..... (1) He never adhere to schedules that he himself proposed. He is always late by weeks. He has zero respect for our time. (2)He is good in modeling simple 3D shapes and rendering these shapes....however do not expect from him a professional mechanical design that can actually be made and become useful....he is far from being able to do that. I do not even think he cares to do that. (3)We asked him several times to make the design using Inventor 2022. He made it using SolidWorks and exported it to Inventor. Now we cannot edit the design or make any changes in it. The work really has to be repeated from scratch because the design is poor, full of mistakes and we cannot even edit that design and correct it. To client: 1 Sam BBC is a worst person to work with. Client pays 20% of the amount and end the contract without any reason. He did th… Sam BBC is a worst person to work with. Client pays 20% of the amount and end the contract without any reason. He did this twice with me and pressurize all the way that I will end the contract. I am really disappointed with the behavior of Sam BBC. Feb 2023 - Mar 2023 FIXED $75.00 Motor Design BLDC Ansys FEA No feedback given To client: 4.2 Nov 2022 - Mar 2023 FIXED $316.50 Autodesk Inventor-Access Control System To freelancer: 4 Riaz, is a capable engineer but he is willing to deliver low quality work if he can. Regards, Sam Nov 2022 - Dec 2022 FIXED $273.00 Battery Cell Search/Survey, Battery Design & Ansys Thermal Analysis To freelancer: 4.7 Siddharth is a capable engineer. He is also decent. To client: 4.4 Nov 2022 - Dec 2022 FIXED $100.00 Ansys FEA-Reinforced Concrete & Pre-Stressed Bridge Beam Dynamic To freelancer: 4.85 Working with Frankey is a pleasure. He is knowledgeable, focused, capable in using his software, quick and sincerely try… Working with Frankey is a pleasure. He is knowledgeable, focused, capable in using his software, quick and sincerely trying to get good and useful results. Moreover, he does not spare effort to get these useful results, he is pleasant and polite. In fact I cannot fault Frankey. Nov 2022 - Dec 2022 FIXED $150.00 Motor Design BLDC Ansys FEA To freelancer: 3.1 Oct 2022 - Oct 2022 FIXED $200.00 Bus CFD (FEA) using Ansys To freelancer: 3.1 To client: 1 This man hardly know a thing, hiring a CFD guy and himself don't know the ABC of CFD, he is very arrogant in his dealing… This man hardly know a thing, hiring a CFD guy and himself don't know the ABC of CFD, he is very arrogant in his dealings, he keep demanding things and asks to teach him things as a high school student, i have the worst working experience with this, I do really respect him as an individual but as a professional, he is very mediocre Aug 2022 - Sep 2022 FIXED $100.00 PCB EMI/EMC and Signal Integrity Analysis To freelancer: 4.7 Good luck in your career To client: 5 Professional client with professional attitude. Best client i ever had, willing to pay in response of professional accom… Professional client with professional attitude. Best client i ever had, willing to pay in response of professional accomplishments. Wish to work with him in future.. May 2022 - Aug 2022 FIXED $130.00 Car CFD (FEA) using Ansys To freelancer: 2.8 Jun 2022 - Jul 2022 FIXED $100.00 3 DOFs Robot Wrist Design To freelancer: 2.45 • Wajahat is polite. However, he took over a month to deliver work that should not take more than 4 days • Calculations … • Wajahat is polite. However, he took over a month to deliver work that should not take more than 4 days • Calculations are wrong. Acceleration and inertia forces and torques have been ignored meaning that you do not know what you are doing. Assumptions we wrong and misleading. The milestone asked for selecting motors. That was not done properly. The report is not useful and badly presented. Work must be repeated. To client: 3.3 Jun 2022 - Jul 2022 FIXED $25.00 Car CFD (FEA) using Ansys To freelancer: 2.35 To client: 1 Jun 2022 - Jun 2022 FIXED $20.00 View more (29) Engineering & Architecture, Electrical & Electronic Engineering Open project
Lead Generation Specialist for CAE Simulation Engineers	30 - 70 USD / hr	12 days ago	Client Rank - Medium Payment method verified Phone number verified 5 jobs posted 60% hire rate, 6 open job no reviews Registered: Nov 7, 2025 United States San Francisco 13:37 3
We are seeking a skilled lead generation specialist to target CAE simulation engineers who use Ansys, COMSOL, or ABAQUS. The role involves identifying these engineers, executing multi-channel outreach strategies, and consistently booking meetings to create a robust top-of-funnel pipeline. I need a lead generation specialist for a very specific technical persona concretely, I am looking for someone that can : 1. Find CAE simulation engineers that use only one of the three following tools (Ansys, COMSOL, ABAQUS) 2. Approach them, target them and outreach (multi channel multi touch) 3. Book meetings with them consistently (create top of the funnel for us) To get hired please read following document and submit a proposal how would you approach this task and why do you think you can source, target and book meetings with this specific type of person. https://docs.google.com/document/d/1FcWgsvXr9wlxST8ayVW4ouDCYVRgErgqTMsoeqvuOEE/edit?usp=sharing Please avoid AI generated responses. Hourly rate: 30 - 70 USD 12 days ago Sales & Marketing, Lead Generation & Telemarketing Open project
Photocatalytic Degradation Kinetics Simulation Software	30 - 250 USD	13 days ago	Client Rank - Risky Payment method not verified 1 open job 5.00 of 2 reviews Registered: Nov 14, 2021 Malaysia 1
I need a skilled software developer to create a simulation platform that models photocatalytic degradation kinetics based on published literature data. This is NOT experimental work—all inputs are literature-derived; the software translates mathematical models into computational simulations. Project Scope Deliverables 1. Kinetic Simulation Module • Implement Langmuir-Hinshelwood rate equation: r = (k_r × K_ads × C) / (1 + K_ads × C) • Implement pseudo-first-order approximation: ln(C₀/Cₜ) = k_app × t • Solve differential equations (ODE solvers: ode45 or scipy.integrate.solve_ivp) • Generate concentration-time profiles (0–180 minutes) 2. Parametric Sensitivity Analysis (OFAT) • Vary initial [APAP]: 1, 5, 10, 20, 30, 50 mg/L • Vary pH: 3, 5, 6.5, 8, 10, 11 (apply pH adjustment factors from literature) • Vary catalyst dosage: 0.5, 1.0, 1.5, 2.0 g/L (account for optical shielding) • Vary light intensity: 20, 45, 65, 100 W/m² • Output: k_app values, % removal at fixed times (30, 60, 90 min), half-lives 3. Model Comparison & Validation • Simulate all three catalysts (TiO₂, ZnO, TiO₂/ZnO/WO₃) under identical conditions • Compare degradation curves side-by-side • Calculate synergy factor for ternary composite • Validate simulated k_app against published literature values (±15% tolerance) 4. Data Visualization • Concentration-time curves (C_t vs. time) • Pseudo-first-order plots (ln(C₀/C_t) vs. time) with R² regression statistics • Sensitivity analysis plots (k_app vs. pH, dosage, [APAP]) • Response surface contours (if 2D parameter variation) • Comparative bar charts (single-oxide vs. composite performance) 5. Documentation & Reproducibility • Well-commented code (clear variable names, equation derivations) • User manual explaining input parameters and output interpretation • Example input files with literature-based parameter sets • CSV export of all simulation results Input Parameters & Data Literature-Derived Kinetic Parameters (You will provide): Single-Oxide Catalysts: Catalyst k_app (min⁻¹) K_ads (L/mg) pH optimum Dosage range (g/L) TiO₂ 0.017–0.060 0.022–0.083 6.5 0.5–2.0 ZnO 0.009–0.047 0.020–0.070 6.5 0.5–2.0 WO₃ 0.009–0.015 0.018–0.060 6.5 0.5–2.0 Composite: Catalyst k_app (min⁻¹) Enhancement (%) TiO₂/ZnO/WO₃ (1:1:1) 0.035–0.050 +60–80% vs. single-oxide pH Adjustment Factors (f_pH): • pH 3: 0.65 • pH 5: 0.85 • pH 6.5: 1.00 (reference) • pH 8: 0.90 • pH 10: 0.70 • pH 11: 0.60 Dosage Adjustment (f_light): • 0.5 g/L: 0.67 • 1.0 g/L: 1.00 (reference) • 1.5 g/L: 0.95 • 2.0 g/L: 0.90 Technical Requirements Programming Language & Environment • Preferred: Python 3.8+ (SciPy, NumPy, Pandas, Matplotlib) • Alternative: MATLAB R2023a or later • Operating System: Windows, macOS, or Linux compatible • Dependencies: Clearly documented; use standard, open-source libraries Functionality Requirements 1. ✓ Read input parameters from CSV or Excel files 2. ✓ Solve ODE (pseudo-first-order kinetics) with default and user-defined parameters 3. ✓ Apply pH and dosage adjustment factors dynamically 4. ✓ Calculate % removal, half-life, k_app values 5. ✓ Generate publication-quality plots 6. ✓ Export results as CSV and high-resolution PNG/PDF plots 7. ✓ Validate regression R² values (must be ≥0.95 for pseudo-first-order fits) 8. ✓ Error handling for invalid inputs (negative concentrations, impossible pH, etc.) Code Quality • Clean, modular design (separate functions for: ODE solving, parameter adjustment, plotting, data export) • Inline comments explaining mathematical equations • Unit testing for key functions • README with installation and usage instructions Timeline & Deliverables Phase Deliverable Timeline 1 Core ODE solver + parameter input module Week 1 2 Sensitivity analysis (OFAT) implementation Week 1–2 3 Plotting & visualization module Week 2 4 Model validation + data export Week 2–3 5 Documentation, testing, finalization Week 3 Total Duration: 3 weeks Delivery Format: Complete Python/MATLAB package + documentation + example data Budget & Payment • Budget: my budget—suggest USD 100–200 depending on scope and experience • Payment Terms: 50% upon contract signing, 50% upon final delivery • Revision Policy: 2 rounds of free revisions included Ideal Candidate Profile ✓ Required: • 3+ years experience with Python (SciPy, NumPy, Matplotlib) OR MATLAB • Proficiency in numerical methods (ODE solving, curve fitting, regression) • Experience with data visualization and scientific computing • Strong coding documentation practices ✓ Nice-to-Have: • Background in environmental engineering, chemistry, or physics • Familiarity with photocatalysis or water treatment literature • Prior experience with kinetic modeling or process simulation • GitHub portfolio with clean, documented code examples ✓ Essential Soft Skills: • Clear communication (for clarifying requirements) • Ability to work with mathematical/scientific documentation • Responsive to feedback and iterative improvements Skills: Python, Data Processing, NumPy, SciPy, Data Visualization, Data Analysis, Scientific Computing, MATLAB, Process Simulation, Regression Analysis Fixed budget: 30 - 250 USD 13 days ago Websites, IT & Software, Data Entry & Admin, Engineering & Science, Business, Accounting, Human Resources & Legal, Python, NumPy, SciPy, Data Visualization, Editing, Data Processing, Data Analysis, Scientific Computing, MATLAB, Process Simulation, Regression Analysis Open project

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