Principal Software Engineer- Flight Systems

4 hours ago


Denver, Colorado, United States FS Studio Full time $125,000 - $155,000
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



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