Senior FreeCAD Engineer
Join OpenTrain AI as a part-time, contract Senior FreeCAD Engineer reviewing and producing parametric CAD models, assemblies, and production drawings. Remote, 20+ hrs/week; pay range $40–$100/hr (USD).
Posted Jul 18, 2026
Join OpenTrain as an Aerodynamics Expert to review, evaluate, and summarize aerodynamic and CFD documents for AI training; remote contractor work at $80–$100/hr for 20+ hours/week. Use your aerospace or mechanical engineering knowledge and technical writing to shape next‑generation AI.
General Annotation
$80–$100/hr
Compensation
Worldwide
Eligibility
Entry
Experience
Jul 29, 2026
Posted
Open worldwide
OpenTrain is the #1 platform for finding and building careers in AI training and data labeling. We help freelancers discover projects, build a unified proof-of-work profile, and grow a durable portfolio of expert contributions that demonstrate real technical experience.
As the hiring organization for this role, OpenTrain connects domain experts directly to AI training work and manages contracting, onboarding, and quality standards so you can focus on delivering technical insight.
AI systems learn from high-quality human examples: labeled documents, expert evaluations, and concise summaries. Aerodynamics expertise is essential when models must understand technical engineering results, CFD outputs, and domain-specific reasoning.
This role places you at the intersection of engineering and AI — your reviews and distilled explanations become training data that improves how future models reason about fluid mechanics, thermofluids, and aerospace problems.
OpenTrain is recruiting an Aerodynamics Expert to provide specialized technical review, evaluation, and summarization of aerodynamic and CFD documents for AI training projects. This is contract, part-time work with a minimum commitment of 20+ hours/week.
You will translate experimental and theoretical results into clear, actionable guidance and high-quality training labels so models can learn practical engineering reasoning and documentation practices.
You'll apply your aerodynamics and CFD knowledge across document review, quality assurance, and content refinement tasks. Work is primarily document-based and focused on producing high-quality evaluations and summaries that feed model training pipelines.
Candidates must demonstrate strong domain knowledge and the ability to communicate technical ideas clearly. This role is listed as entry level, but requires substantial understanding of aerodynamics and CFD concepts.
This role suits aerospace or mechanical engineers, CFD analysts, technical reviewers, or consultants who want to contribute domain expertise to AI systems. If you enjoy explaining complex concepts, improving documentation, and shaping how models learn engineering reasoning, apply.
Keep exploring
Join OpenTrain AI as a part-time, contract Senior FreeCAD Engineer reviewing and producing parametric CAD models, assemblies, and production drawings. Remote, 20+ hrs/week; pay range $40–$100/hr (USD).
Posted Jul 18, 2026
Join OpenTrain as a remote CAD Review Specialist to annotate and evaluate 2D/3D AutoCAD designs that train AI systems; contractor, part-time role paying $20–$70/hr with 20+ hours/week and estimated project earnings of $3,200–$11,200.
Posted Jun 28, 2026
OpenTrain is hiring a remote contractor to review and produce production-ready parametric 3D CAD models, engineering drawings, and technical documentation. Part-time, 20+ hours/week; pay range $40–$100 USD/hr (posted rate $100/hr).
Posted Jul 21, 2026
Explore related categories