C++ Simulations Engineer — Spacecraft Dynamics & HPC

InvestedintheMission; Redmond (WA); On-site; USD 125,000 - 200,000; Full time

Benefits offered by this job

Stock options

Health benefits

401(k)

Paid time off

Shuttle service

Job summary

SpaceX in Redmond, WA is seeking a Software Engineer, C++ Simulations (Starlink) to lead architecture, refactors, and the evolution of the high-performance vehicle dynamics simulator and testing environments.

You will own Monte Carlo and HITL simulation infrastructure, parallelized C++ code, and visualization tools, collaborating across engineering teams to deliver scalable, reliable software for the Starlink constellation.

Qualifications

• Bachelor’s degree in a STEM discipline and 1+ years of software development experience; OR 4+ years of professional software development experience in performant C++ OR numerical simulations
• Experience building or optimizing high-performance simulations, physics engines, or real-time systems.

Responsibilities

• Lead the design, major refactors, redesigns, and ongoing evolution of the core C++ vehicle dynamics simulator and associated testing/support infrastructure for Starlink.
• Architect and improve high-performance C++ Monte Carlo simulation infrastructure, including parallelization and reliability for large-scale runs.
• Drive development of new simulation features, models, and tooling with focus on performance, usability, and extensibility of the C++ core.
• Own performance optimization, profiling, CI, unit/integration testing, and reliability improvements across the stack.
• Design and implement new testing frameworks, support infrastructure, and visualization components to accelerate GNC development.
• Collaborate cross-functionally to model multi-body physics, environmental effects, and hardware behaviors with rigorous software quality.

Skills

C++

Simulations

HPC

Communication

Software design

Physics

Debugging

Python

Problem solving

Education

Bachelor's degree in STEM

4+ years in C++/simulations

Job description

SpaceX in Redmond, WA is seeking a Software Engineer, C++ Simulations (Starlink) to lead architecture, refactors, and the evolution of the high-performance vehicle dynamics simulator and testing environments.

You will own Monte Carlo and HITL simulation infrastructure, parallelized C++ code, and visualization tools, collaborating across engineering teams to deliver scalable, reliable software for the Starlink constellation.