Senior Aerodynamics Engineer — CFD & Wind Tunnel Expert

Obsidian; San Francisco (CA); Remote; USD 140,000 - 180,000; Full time

Job summary

Obsidian in San Francisco seeks a senior aerodynamics expert to design benchmarks of the hardest reasoning questions in the field. You will author original, free‑response engineering problems grounded in real industry scenarios and craft complete expert‑level solutions for each.

You will validate difficulty by running problems against frontier language models and assess results, ensuring at least one model fails.

Qualifications

• PhD in Aerospace Engineering or a Mechanical Engineering with a thermofluids/aerodynamics specialization.
• 5+ years of hands-on professional/industry experience in external aerodynamics, CFD, wind tunnel testing, propulsion, or vehicle aerodynamics.

Responsibilities

• Author original, free‑response engineering problems grounded in real industry scenarios.
• Write a complete expert‑level solution for each problem.
• Validate difficulty by running problems against frontier language models to ensure at least one model fails.

Skills

External Aerodynamics

Aeroelastic FEM

Education

PhD in Aerospace Engineering

Tools

CFD

Wind Tunnel Testing

Propulsion

Vehicle Aerodynamics

Job description

Obsidian in San Francisco seeks a senior aerodynamics expert to design benchmarks of the hardest reasoning questions in the field. You will author original, free‑response engineering problems grounded in real industry scenarios and craft complete expert‑level solutions for each.

You will validate difficulty by running problems against frontier language models and assess results, ensuring at least one model fails.