Senior Flight Platform Software Engineer

Overview

ReOrbit is looking for a Senior Flight Platform Software Engineer to join the ReOrbit team and support the software campaigns for our current satellite product lines UKKO, SILTA and future missions. This role is based in our office in Bristol, UK. It s an exciting chance to join a dynamic start-up, with the opportunity to make a real impact and to push the boundaries of space data transfer.

Responsibilities

• Perform the specification, design, implementation, build and verification of Mission Critical Flight Platform Software aligned with ReOrbit s software‑defined satellite philosophy.
• Perform thorough code reviews and contribute to architectural and design decision‑making of software.
• Contribute to and support tool and infrastructure development and the engineering process evolution of the software team.
• Support mentorship of junior engineers, enhancing technical growth and capability within the team.
• Communicate effectively with systems and test teams to troubleshoot defects and accelerate software integration.

Skills and Requirements

• Bachelor s or Master s degree in Computer Science, Software Engineering, Aerospace Engineering, or equivalent
• 5+ years of professional experience in embedded systems, distributed systems, or mission‑critical software
• Strong proficiency in C/C++ for embedded or real‑time software with solid software‑design fundamentals, including data structures, concurrency and debugging
• Strong core software engineering skills, including system architecture, code reviews, static analysis, CI/CD pipelines, configuration management, and effective observability and logging
• Solid real‑time systems knowledge: scheduling, interrupts, concurrency, determinism, and efficient design for limited compute and memory
• Experience with spacecraft software, satellite operations, or aerospace systems
• Understanding of networking protocols, inter‑process communication, or distributed autonomy
• Experience with security‑oriented software development for mission‑critical systems

Working at Re Orbit

At ReOrbit, we are focused on building a strong team and believe nothing can be accomplished without innovative, humble and curious minds working together on a common goal. We foster an inclusive, dynamic environment where equality and diversity are our strength.

What we offer

• Challenging but rewarding environment where your ideas will be heard as you continually look for ways to improve
• Ambitious and supportive network of people motivated to change the space industry, including expertise from both classic and new space
• Benefits such as lunch vouchers, events, occupational health care and additional health insurance, plus the opportunity to be part of a unique and diverse team with a shared sense of humor
• Social activities such as run Orbit, climb
  
  Orbit, ping pong or board games
• We support relocation and integration into the society of the country you move to

What does ReOrbit do?

ReOrbit builds the foundation for the next generation of space applications by transforming satellites into truly intelligent, interconnected platforms defined by software. Our satellite design philosophy revolves around satellites networking and communicating to improve mission efficiency, using a flexible software‑first architecture where these aspects are addressed upfront in the mission concept as integrated functionalities.

ReOrbit s team develops in‑house software, procures hardware from leading suppliers, and integrates components to create flexible and secure satellites. We are headquartered in Helsinki, Finland with a subsidiary in Bariloche, Argentina.

Relocation and inclusion

We are committed to building a strong team in an inclusive, dynamic environment. We welcome applicants from diverse backgrounds and offer relocation support where applicable.

For agencies:
We do not accept unsolicited CVs for our open vacancies. Any CV sent to our team unsolicited will reserve us the right to pursue a candidate without obligation to the sender. All candidate submissions must be conducted through our official channels and in accordance with our terms of engagement.