via Ashby
$125K - 155K a year
Lead architecture, design, and development of mission-critical spacecraft software, owning full SDLC and collaborating with aerospace teams.
7+ years software experience with expert C++, proficiency in Python, Linux knowledge, and strong communication skills.
Principal Software Engineer — Space Systems Location: Greater Denver, CO Area (Hybrid: 3–5 days onsite) U.S. Persons Only — No visa sponsorship A fast-growing space systems organization is seeking a Principal Software Engineer to lead development of ground and flight software for lunar and deep-space missions. This role is ideal for a senior engineer who thrives in mission-critical environments and wants to directly shape the future of space exploration. What You’ll Do Lead architecture, design, and development of mission software for spacecraft operations. Own the full SDLC: requirements, implementation, testing, integration, and mission support. Collaborate with aerospace, mission, and systems engineering teams to translate mission needs into robust solutions. Mentor engineers and help establish technical standards and best practices. Communicate technical decisions clearly to internal and external stakeholders. What You Bring Expert-level C++ skills; proficiency in Python or another high-level language. Strong knowledge of Linux, software architecture, and object-oriented design. Experience with Git or similar version control tools. Ability to solve complex problems independently and lead technical direction. Excellent communication and collaboration skills. Nice to Have GitLab CI/CD AWS/EC2 Embedded or real-time systems Aerospace/spacecraft experience AI/ML exposure Education & Experience Bachelor’s degree in Computer Science, Engineering, or similar 7+ years of relevant software experience Compensation & Benefits Base Salary: $125,000 – $155,000, depending on experience Signing bonus Health insurance 401(k) Flexible time off Quarterly incentives Relocation assistance
This job posting was last updated on 12/9/2025