Flight Software Engineer

Flight Software Engineer

Join to apply for the Flight Software Engineer role at Open Cosmos
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At Open Cosmos we are solving the world’s biggest challenges from space, providing businesses, governments and researchers access to more readily available information than ever before – ready for the challenge? Then read on…

Working across the full mission lifecycle, the team designs, implements, and tests software for both onboard and ground systems, ensuring reliability, performance, and scalability across our growing satellite fleet. Collaborating closely with systems, electronics, and mission operations, the team brings together innovation and precision to make every Open Cosmos mission fly.

This role develops, implements and tests software both on land and in orbit. You’ll contribute to mission‑critical systems that underpin Open Cosmos’s growing satellite fleet — from flight logic to communications, automation and onboard resource management.

• Design, develop, and test flight and ground software for satellite subsystems, ensuring robustness, reliability, and maintainability.
• Implement embedded code in Rust, C, and C++ for onboard computers, payloads, and communication systems.
• Develop mission‑critical functionality, including telemetry handling, command execution, and fault detection/recovery.
• Maintain and enhance software tools and test frameworks used across the development and verification lifecycle.
• Work closely with engineers across systems, electronics, and mission operations to deliver safe, efficient, and scalable software.

• Strong programming skills in Rust (or a background in C++ and willingness to learn).
• Familiarity with Linux‑based development and embedded systems.
• Understanding of spacecraft subsystems such as ADCS, EPS, and communications.
• Applied knowledge of CI/CD pipelines, automated testing, and version control.
• A problem‑solving mindset, creativity, and teamwork skills to match our mission pace.

For this role you can be based in any of our locations.

Barcelona (Spain), Porto (Portugal), Athens (Greece), Harwell – Oxford (UK).

To apply, you must have the legal right to work in your chosen location.

Please submit your application and CV in English.

• Work at the cutting edge of space technology with customers around the globe.
• A mission‑driven company making space accessible to help solve real‑world challenges.
• A diverse, ambitious, and supportive team.