Senior Flight Software Engineer

3 days ago

Pallini Municipal Unit, Greece Open Cosmos Full time

Aim high, go beyond

At Open Cosmos we are solving the world's biggest challenges fro space, providing businesses, governments and researchers access to more readily available information than ever before - ready for the challenge? Then read on…

The CTO division is where Open Cosmos technology comes to life. Covering engineering, product development, and technical innovation, the team designs, builds, and operates the satellites, systems, and platforms that make our missions possible. It's a highly collaborative environment where ideas become real hardware, software, and data solutions that deliver impact from space.

Working in the Flight Software Team

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.

What You'll Be Doing

You'll take ownership of software design from concept to flight. That means defining architectures, implementing and verifying embedded code, and leading reviews to ensure compliance with space standards.

You will:

  • Lead the design, architecture, and implementation of flight software for new satellite platforms and missions.

  • Define software interfaces, patterns, and frameworks for onboard and ground systems using Rust, C, and C++.

  • Oversee system-level integration and testing of flight software across multiple missions.

  • Implement and review mission-critical features such as fault tolerance, safe modes, and autonomous recovery.

  • Mentor junior engineers, ensuring best practices in coding standards, version control, CI/CD, and documentation.

  • Drive design and code reviews, ensuring compliance with ECSS, DO-178C, and Open Cosmos software assurance standards.

  • Collaborate with hardware, systems, and operations teams to optimise performance and ensure mission readiness.

What You'll Bring

  • Deep expertise in Rust, with proficiency in C/C++ and embedded systems.

  • Familiarity with space protocols (CCSDS, telemetry/telecommand).

  • Strong grasp of software assurance, fault detection, and recovery design.

  • Experience with CI/CD, testing automation, and configuration management.

  • A structured yet creative approach, balancing precision with problem-solving.

For this role you can be based in Harwell in UK, Barcelona in Spain or Athens, Greece.

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

Please submit your application and CV in English.

Why Open Cosmos?

  • 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.

  • Flight Software Engineer

    3 days ago

    Pallini Municipal Unit, Greece Open Cosmos Full time

    Aim high, go beyond At Open Cosmos we are solving the world's biggest challenges for space, providing businesses, governments and researchers access to more readily available information than ever before - ready for the challenge? Then read on…The CTO division is where Open Cosmos technology comes to life. Covering engineering, product development, and...

  • Flight Software Engineer

    3 days ago

    Pallini Municipal Unit, Greece Open Cosmos Full time

    Aim high, go beyond 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…The CTO division is where Open Cosmos technology comes to life. Covering engineering, product development, and...

  • Satellite Flight Operator

    4 days ago

    Pallini Municipal Unit, Greece Open Cosmos Full time

    Aim high, go beyond 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…The CTO division is where Open Cosmos technology comes to life. Covering engineering, product development, and...

  • Junior Backend Engineer

    6 days ago

    Pallini Municipal Unit, Greece Open Cosmos Full time

    Aim high, go beyond 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 in our Data DivisionOur Data division transforms satellite data into meaningful insights that drive...

  • Automation Engineer

    3 days ago

    Pallini Municipal Unit, Greece Open Cosmos Full time

    Aim high, go beyond 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…The CTO division is where Open Cosmos technology comes to life. Covering engineering, product development, and...

  • Mechanical Engineer

    16 hours ago

    Pallini Municipal Unit, Greece Open Cosmos Full time

    Aim high, go beyondAt 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 in our Chief Technology Office (CTO)The CTO division is where Open Cosmos technology comes to life....

  • Junior Backend Engineer

    6 days ago

    Pallini Municipal Unit, Greece Open Cosmos Full time

    Aim high, go beyond 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 in our Data DivisionOur Data division transforms satellite data into meaningful insights that drive...

  • Quality & Product Assurance (QPA) Intern - Greece

    3 days ago

    Pallini Municipal Unit, Greece Open Cosmos Full time

    Aim high, go beyondAt 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…Our COO Teams are the engine that powers Open Cosmos' operations. This division brings together mission...

  • 2nd Line IT Support Engineer

    4 days ago

    Pallini Municipal Unit, Greece Open Cosmos Full time

    Aim high, go beyond 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 in our Chief Operating Office (COO)Our COO Teams are the engine that powers Open Cosmos' operations. This...

  • Senior Cyber Security Engineer

    1 week ago

    Ia Municipal Unit, Greece Sanford Health Full time $40 - $66

    Sanford Health is one of the largest and fastest-growing not-for-profit health systems in the United States. We're proud to offer many development and advancement opportunities to our nearly 50,000 members of the Sanford Family who are dedicated to the work of health and healing across our broad footprint. Work Shift:8 Hours - Day Shifts (United States of...