Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Freelance Mechanical CFD Engineer - AI Trainer

$39 per hour
Part-time

Mindrift (Toloka)

About the role 

Help train and evaluate AI agents on expert-level fluid simulation tasks. You'll take CAD geometry, set up and run simulations, build verified reference solutions, and write Python checks for the agent's results.

Requirements

  • A degree in Mechanical or Aerospace Engineering, or a related field such as energy or oil & gas. A PhD is preferred but not required.
  • Several years of hands-on industry or research CFD with OpenFOAM, ANSYS Fluent/CFX or STAR-CCM+, including meshing.
  • Solid verification and validation practice: mesh-independence studies, and validation against experiment or benchmarks.
  • Comfortable with Python and GitHub.
  • English at B2 level or above.
  • Nice to have: aerospace, automotive, offshore or turbomachinery background; multiphase or particle-laden flow experience.

Project time expectations 

For this project, tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active. 

Compensation 

On this project, contributors can earn up to $39 per hour equivalent , depending on their level and pace of contribution.

Compensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.

Why this freelance opportunity might be a great fit for you? 

  • Work fully remote on your own schedule with just a laptop and stable internet connection.
  • Apply your expertise to real-world technology projects while gaining experience building high-quality solutions for a global platform.
  • Participate in performance-based bonus programs that reward high-quality work and consistent delivery.
Vacancy posted 2 days ago
Similar jobs that could be interesting for youBased on the Freelance Mechanical CFD Engineer - AI Trainer in Remote vacancy
  •  ...pay Required Skills CFD engineering Aerodynamics fluid-dynamics About micro1 micro1 is the leading AI data lab for training frontier models and evaluating AI agents...  ...Bachelor’s degree or higher in Mechanical Engineering, Aerospace Engineering, Chemical... 
    Suggested
    Part time
    For contractors
    Remote work

    micro1

    Remote
    12 days ago
  • $25 - $100 per hour

     ...Job Application for Business Owners - Freelance AI Trainer Project at Meridial Back to jobs Business Owners - Freelance AI Trainer Project...  ..., consumer-facing data representation, and local search mechanics from a merchant's perspective. We offer a pay range of $25... 
    Freelance
    Hourly pay
    Part time
    For contractors
    Local area
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...Job Application for German Translator - Freelance AI Trainer Project at Meridial Back to jobs German Translator - Freelance AI Trainer Project...  ...models are evolving from clever chatbots into powerful engines of linguistic intelligence. With high-quality training data,... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...Job Application for Voice Actor - Freelance AI Trainer Project at Meridial Back to jobs Voice Actor - Freelance AI Trainer Project World Wide - Remote Are you an experienced voice actor eager to shape the future of AI? Large-scale language models and speech technologies... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...Job Application for Religion Specialist – Freelance AI Trainer Project at Meridial Back to jobs Religion Specialist – Freelance AI Trainer Project World Wide - Remote Are you knowledgeable about religion or religious studies and eager to shape the future of AI?... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...Job Application for Tutoring Specialist - Freelance AI Trainer Project at Meridial Back to jobs Tutoring Specialist - Freelance AI Trainer Project World Wide - Remote Are you an experienced instructional professional with hands-on knowledge of pedagogy, complex... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...Job Application for Investment Specialist – Freelance AI Trainer Project at Meridial Back to jobs Investment Specialist – Freelance AI Trainer Project World Wide - Remote Are you knowledgeable about investments and eager to shape the future of AI? Large-scale language... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work
    Worldwide

    Invisible Technologies

    Remote
    12 days ago
  •  ...Key Responsibilities Train AI models by annotating and labeling sound data accurately. Review and validate AI-generated sound...  ...precision and quality assurance. Provide domain expertise in sound engineering to enhance AI model efficacy. Collaborate on various AI... 
    Contract work
    Flexible hours

    Rise Data Labs

    Remote
    12 days ago
  •  ...Job Application for Georgian Language Specialist - Freelance AI Trainer Project at Meridial Back to jobs Georgian Language Specialist -...  ...language models are evolving from simple tools into powerful engines of understanding, communication, and learning. With high-quality... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an Arabic Voice Actor – Freelance AI Trainer Project based in Canada. Bring your Arabic voice acting expertise to the development of next-generation artificial intelligence... 
    Freelance
    Hourly pay
    Full time
    Contract work
    Remote work
    Worldwide
    Flexible hours

    Jobgether

    Remote
    5 days ago
  •  ...partner company, which manages all applications and next steps. Our partner is looking for an Analytical Chemistry Specialist – Freelance AI Trainer Project based in Canada. Are you an analytical chemistry expert interested in contributing to the next generation of artificial... 
    Freelance
    Full time
    Remote work

    Jobgether

    Remote
    2 days ago
  • $60 per hour

     ...Job Application for Kubernetes AI Task Auditor - Freelance AI Trainer Project at Meridial Back to jobs Kubernetes AI Task Auditor - Freelance AI Trainer Project World Wide - Remote Project Overview We are sorcing experienced technical specialists in Kubernetes... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...Our partner is looking for an Arabic (Gulf) Language Expert – Freelance AI Trainer Project based in Canada. We are seeking an Arabic (Gulf)...  ...evaluations and corrections. - Recommend improvements to prompt engineering, training approaches, and language evaluation metrics. -... 
    Freelance
    Full time
    Remote work

    Jobgether

    Remote
    7 hours ago
  •  ...partner is looking for an Arabic (Levantine) Language Expert – Freelance AI Trainer Project based in Canada. Help shape the future of artificial...  .... Your findings will help improve model reasoning, prompt engineering, and evaluation methods while supporting more natural and... 
    Freelance
    Hourly pay
    Full time
    Contract work
    For contractors
    Local area
    Remote work
    Worldwide

    Jobgether

    Remote
    5 days ago
  • $30 per hour

     ...## About SME Careers As AI systems become more sophisticated...  ...geometry carelessly. Engineering intent lives in the model tree...  ...of professional experience in mechanical design, product development,...  ...contract, studio, in-house, or freelance). - Genuine FreeCAD proficiency... 
    Freelance
    Hourly pay
    Full time
    Contract work
    Local area
    Remote work
    Flexible hours

    SuperAnnotate

    Remote
    9 days ago
  •  ...Job Application for Arabic (Levantine) Language Specialist - Freelance AI Trainer Project at Meridial Back to jobs Arabic (Levantine)...  ...reproducible error traces, and suggest improvements to our prompt engineering and evaluation metrics. A degree in Linguistics, Middle... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Immediate start
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...Job Application for Insurance Specialist (Fluent in French) - Freelance AI Trainer Project at Meridial Back to jobs Insurance Specialist (...  ...models are evolving from clever chatbots into powerful engines of financial literacy, risk analysis, and claims automation.... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Immediate start
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...partner company, who manages all applications and next steps. Our partner is looking for a Portuguese Audio Evaluations Specialist – Freelance AI Trainer Project based in Canada. Contribute to the development of advanced conversational AI by evaluating audio-based models in... 
    Freelance
    Hourly pay
    Full time
    For contractors
    Remote work
    Flexible hours

    Jobgether

    Remote
    2 days ago
  • $22 per hour

     ...Job Application for 3D Modeling & Python Specialist - Freelance AI Trainer Project at Meridial Back to jobs 3D Modeling & Python Specialist - Freelance AI Trainer Project World Wide - Remote Project Overview We are sourcing independent 3D Modeling and Python Specialists... 
    Freelance
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...all applications and next steps. Our partner is looking for an AI Trainers Network – Cantonese based in Canada. Join a global network of language...  ...more accurate, natural, and inclusive AI experiences. This freelance opportunity offers remote work and flexible participation,... 
    Freelance
    Full time
    Remote work
    Worldwide
    Flexible hours

    Jobgether

    Remote
    2 days ago
  •  ...who manages all applications and next steps. Our partner is looking for a Language Alignment & Resource Partner (Belarusian) – Freelance AI Trainer Project based in Canada. Help improve the quality, cultural accuracy, and naturalness of AI-generated content through specialized... 
    Freelance
    Hourly pay
    Full time
    For contractors
    Remote work

    Jobgether

    Remote
    2 days ago
  • $15 - $30 per hour

     ...Application for Audio Editor for Dialogue / Audio Post-Production - Freelance AI Trainer Project at Meridial Back to jobs Audio Editor for...  ...We are seeking an experienced Dialogue Editor / Audio Engineer to prepare, clean, and optimize spoken-word audio for post... 
    Freelance
    Hourly pay
    Contract work
    Part time
    For contractors
    Internship
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  • $40 - $125 per hour

     ...: Weekly Overview We’re looking for an experienced Mechanical Engineer to help train AI models. You’ll write hard, verifiable engineering problems...  ..., Fusion 360, Onshape, Creo, NX, CATIA, or Inventor), FEA/CFD, or MATLAB/Python for engineering analysis. ~ Strong fundamentals... 
    Weekly pay
    Full time
    Contract work
    For contractors
    Remote work
    Flexible hours

    DataAnnotation

    Remote
    7 days ago
  •  ...Job Application for Language Alignment & Resource Partner (French) - Freelance AI Trainer Project at Meridial Back to jobs Language Alignment & Resource Partner (French) - Freelance AI Trainer Project Canada Project Overview We are sourcing independent Language... 
    Freelance
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    Remote
    12 days ago
  •  ...all applications and next steps. Our partner is looking for an AI Trainers Network – Arabic based in Canada. Join a global network of...  ...annotation, content evaluation, translation, linguistics, prompt engineering, or AI training may be helpful, but project-specific requirements... 
    Full time
    Remote work
    Flexible hours

    Jobgether

    Remote
    1 day ago
  •  ...for improving the quality, safety, and intelligence of cutting-edge AI models. Key Responsibilities Create High-Quality Training...  ...grammar, and communication skills. Proven experience as an AI Trainer, Data Annotator, or in a similar role involving interaction with large... 
    Hourly pay
    Remote work

    RemoExperts

    Remote
    12 days ago
  •  ...About the Role We are looking for mechanical engineering experts to help train and evaluate AI models. You will create realistic problems with reference answers,...  ...engineering analysis tools (for example CAD, FEA or CFD). Excellent written English. Reliable, detail-... 
    Hourly pay
    For contractors
    Remote work

    RemoExperts

    Remote
    12 days ago
  •  ...This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for an AI Trainers Network – Bulgarian based in Canada. Join a global contributor network helping shape the next generation of safer, smarter, and more... 
    Full time
    Immediate start
    Remote work
    Flexible hours

    Jobgether

    Remote
    2 days ago
  •  ...leveling up. Now we’re looking for an AI Engineer to build AI agents and solutions that transform...  ...and CI/CD. Build quality and safety mechanisms for AI agents, including tracing,...  ...Offline: workouts with professional trainers in our corporate gym, massage, corporate... 
    Full time
    Work at office
    Local area
    Remote work
    Flexible hours

    Betterme

    Remote
    19 hours ago
  •  ...This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for an AI Trainers Network – Bosnian based in Canada. Join a global contributor network helping shape the future of artificial intelligence through... 
    Full time
    Immediate start
    Remote work
    Flexible hours

    Jobgether

    Remote
    7 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Freelance Mechanical CFD Engineer - AI Trainer. Be the first to apply!