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Apex manufactures satellite buses (commercial spacecraft platforms) at scale, combining software, vertical integration, and hardware designed for manufacturing. These platforms enable earth observation, communications, and other critical space-based services.
As a Flight Software Engineer on the flight software team, you will design, develop, and own the software driving autonomous operation of Apex's satellite buses. You will be responsible for mission-critical systems that operate reliably 24/7 in all scenarios.
Key responsibilities include:
- Design, implement, and own mission-critical software applications for satellite systems
- Support commissioning of spacecraft during launch and early operations, ensuring software systems remain functional during critical phases
- Own spacecraft software solutions through the full lifecycle from initial design to deployment
- Perform unit testing, integration testing, and system-level testing of software components, identifying and resolving defects
- Collaborate with cross-functional teams to baseline product requirements and technical roadmaps
- Work closely with internal teams and external customers to align solutions with company objectives and user requirements
Apex is a fast-growing startup that has raised over $500M in funding. The company offers equity participation, comprehensive healthcare (100% company-paid medical, dental, vision), 15-20+ days vacation plus 10 paid holidays, 401(k) matching, 8 weeks paid parental leave, catered lunches, and a collaborative office environment in Playa Vista with flexibility for work-life integration.
REQUIREMENTS:
- U.S. Person status (required to access export-controlled data)
- 1+ years of flight software experience
- Bachelor's degree in Computer Science, Electrical Engineering, or equivalent
- Strong proficiency in Python, C++, or Rust
- Experience with real-time systems running on distributed hardware
- Knowledge of embedded Linux operating systems, system administration, and Linux distribution creation (Yocto)
- Familiarity with satellite systems and protocols (CCSDS, ECSS)
- Experience with software integration, testing, and validation for real-time and distributed systems
- Familiarity with network protocols (TCP/IP, UDP), secure communication systems, Protobuf, and encryption
