Tools

Industry-standard commercial CFD solver. Extensive aerospace validation for nozzle flow, aerodynamic heating, and combustion. Used by Boeing, Lockheed, NASA contractors.

The dominant open source CFD platform. Widely used across aerospace startups who can't afford Fluent licenses. C++ solver library with extensive aerospace validation.

Siemens CFD platform with integrated CAD handling. Popular for propulsion system analysis and reentry aerothermal simulations.

Structural FEA solver for stress, vibration, and thermal analysis. Standard for launch vehicle structural qualification and satellite structural analysis. Commonly paired with Fluent for coupled aero-structural problems.

NASA-originated FEA solver, now maintained by MSC Software and Hexagon. Required by many heritage aerospace programs. Structural certification gold standard for human spaceflight hardware.

NASA's General Mission Analysis Tool. High-fidelity trajectory optimization, orbit determination, and maneuver planning. Used for cislunar, interplanetary, and complex Earth orbit missions.

Java-based space dynamics library from the Orekit community. Precise orbit propagation, attitude modeling, event detection. Popular with European startups and ESA contractors.

Python astrodynamics library. Keplerian orbit propagation, Hohmann/bi-elliptic transfers, Lambert solver. Popular in academic and early-stage startup contexts.

Ansys gold-standard mission analysis platform. Satellite coverage, launch analysis, sensor modeling. $50k+/seat. The de facto standard at established primes and government programs.

Dassault Systèmes high-end CAD/PLM platform. Standard at Airbus, Boeing, most aerospace primes. Complex surface modeling and large assembly management. Common heritage platform requirement for NASA programs.

Autodesk cloud CAD with integrated CAM and simulation. Popular at hardware startups for its lower cost and manufacturing integration. Common in CubeSat and NewSpace hardware teams.

Dassault Systèmes mid-market CAD. Common at small/medium aerospace startups — lower cost than CATIA, strong ecosystem. Used extensively at Rocket Lab, many smallsat companies.

Open source RTOS for microcontrollers. Common in CubeSats and smallsat subsystems. Lower overhead than VxWorks, actively maintained by Amazon.

Wind River RTOS. Heritage in space — used on Mars rovers, spacecraft, and avionics. DO-178C certifiable. Standard at primes and NASA missions requiring heritage software.

NASA Goddard's reusable flight software framework. Component-based architecture for spacecraft software. Used on dozens of NASA missions — LRO, LADEE, and many CubeSats.

Primary language for flight software, real-time systems, and high-performance simulation. Used in SpaceX flight computers, most embedded spacecraft software. MISRA C++ subset common for safety-critical code.

MathWorks numerical computing environment. Standard for GNC algorithm development, Simulink for system modeling. Deep heritage in aerospace — most legacy flight software prototyped here. Being displaced by Python at startups.

Dominant language for aerospace data analysis, GNC algorithm prototyping, and mission planning scripts. NumPy/SciPy stack used for orbital mechanics. Increasingly used for flight software at NewSpace startups.

Memory-safe systems language gaining traction in aerospace for ground software and non-safety-critical flight software. Hiring signal: aerospace startups hiring Rust engineers suggests modernizing software stack.

Open source command and control system for spacecraft testing and operations. Ruby-based. Used by many small satellite teams for ground station software.