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Sr. Software Engineer, HITL - Top Secret Clearance

SpaceX - Hawthorne, CA

Posted Feb 3, 2026

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About this role

Sr. Software Engineer, HITL - Top Secret Clearance Hawthorne, CA SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. SOFTWARE ENGINEER, HITL - TOP SECRET CLEARANCE As a Sr. Software Engineer in Special Programs, you will design, develop, and test key aspects of an in-house solution for analysis, simulation, and prototyping of software in support of all SpaceX flight systems. You will have full ownership of new features in a scalable, high-performance application used to control and test flight systems. This is a high-impact role where you will work across the engineering groups to build a high-assurance system that accelerates the development and demonstration of cutting-edge software and hardware. Aerospace experience is not required to be successful here - rather, we look for smart, motivated software engineers who enjoy taking on complex challenges, work well in dynamic environments, and care about software best practices. Our software is critical to future mission successes, and we have no shortage of interesting challenges that require innovative, cutting-edge solutions. RESPONSIBILITIES: - Design and implement automated testing for hardware in the loop (HITL) and hardware out of the loop (HOOTL) software to ensure that deliverables meet target design criteria and operate within technical constraints - Develop full-stack solutions to manage automated testing of vehicle subsystems leveraging

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