Flight Dynamics Software Engineer (Astrodynamics)

Location: Toulouse, Occitanie, France; onsite. Relocation assistance to Toulouse may be available.

Company

hirify.global provides end-to-end space missions as a service, integrating, launching, and operating spacecraft for governments, companies, and research institutions.

What you will do

• Implement and improve algorithms for orbit determination, propagation, maneuver planning, conjunction assessment, collision avoidance, and attitude modeling.
• Contribute to open-source astrodynamics tooling used for flight operations and simulation.
• Develop and maintain backend applications that compute, store, and serve ephemerides, maneuvers, conjunctions, and target orbits.
• Translate technical mission requirements and customer demands into operational outcomes with systems and mission engineers.
• Support satellite operations during LEOP, anomalies, and conjunction response, including configuration for customer missions.

Requirements

• Bachelor’s degree in physics or an engineering discipline.
• Deep technical understanding of orbital mechanics, state estimation, spacecraft maneuver planning, conjunction assessment, and/or spacecraft attitude modeling.
• Fundamentals of numerical methods, including solvers, optimization, and simulation techniques.
• Experience designing and developing software libraries and backend services, preferably in Python.
• Excellent written and verbal communication skills.

Nice to have

• Master’s degree in physics or an engineering discipline.
• Proficiency with astrodynamics tools such as STK, Astrogator, GMAT, OreKit, Monte, Copernicus, OpenSpaceToolkit, or equivalent.
• Practical experience in spacecraft constellation flight dynamics operations.
• Practical experience building high-performance backend applications and/or libraries.
• Ability to solve complex problems in a highly collaborative environment.

Culture & Benefits

• Full-time role with flexible working hours.
• Up to 35 days of paid time off, including vacations and RTT.
• Health and life insurance, lunch vouchers, and equity.
• Cross-office travel between San Francisco, Colorado, and Toulouse, plus company and team off-sites.
• Relocation assistance to Toulouse when applicable.

Hiring process

• Submit a resume in English for review by colleagues across the company’s offices.