Flight Software Engineer

About the Company

Apolink is building the world’s most interoperable satellite relay network in low Earth orbit. Our hybrid communication architecture combines RF and optical inter-satellite links to enable real-time, continuous connectivity for satellite operators across industries.

Responsibilities

• Architect and implement real-time flight software for satellite command and control
• Develop embedded software for avionics, SDRs, and optical/RF payload subsystems
• Build hardware abstraction layers, device drivers, and telemetry/telecommand interfaces
• Read and integrate vendor SDKs into the flight stack for bus and payload components
• Implement autonomy features, including fault detection, isolation, and recovery (FDIR)
• Build and maintain software-in-the-loop (SIL) and hardware-in-the-loop (HITL) frameworks
• Design spacecraft-to-ground communication protocols with authentication and security
• Support hardware integration, functional testing, and on-orbit commissioning
• Collaborate with RF, GNC, and systems engineers for seamless spacecraft ops

Requirements

• B.S. in Computer Science, Computer Engineering, Electrical Engineering, or related field
• 5+ years of experience in embedded/flight software development (space, aerospace, or robotics)
• Proficiency in C/C++ for real-time and resource-constrained systems
• Experience with RTOS (FreeRTOS, VxWorks, RTEMS, or similar)
• Strong debugging skills with CI/CD, automated testing, and hardware bring-up
• Hands-on experience with embedded communication protocols (CAN, UART, I²C, SPI, RS-422, etc.)
• Familiarity with spacecraft operations, comm protocols, and avionics integration
• Comfortable working with vendor SDKs and adapting them to flight software needs

Benefits

• Stock options and discretionary performance bonuses
• Equity participation
• Comprehensive health care
• 401(k) with company matching
• Flexible vacation
• Catered meal credits
• Professional development opportunities