Job title: Onboard Software Engineer

Location: Stevenage, UK

Company

Akkodis is a global leader in engineering, technology, and R&D, harnessing the power of connected data to drive digital transformation and innovation for a smarter, more sustainable future. As part of the Adecco Group, Akkodis combines the expertise of AKKA and Modis, with over 50,000 engineers and digital specialists across 30 countries in North America, EMEA, and APAC. Our teams bring extensive cross-sector knowledge in critical technology areas such as mobility, software services, robotics, simulations, cybersecurity, AI, and data analytics, enabling clients to tackle complex challenges in today’s rapidly evolving markets.

With a comprehensive solution portfolio across four service lines—Consulting, Solutions, Talents, and Academy—Akkodis supports clients from concept through to full-scale deployment and optimisation. Our diverse offerings help organisations rethink product development, accelerate productivity, reduce time-to-market, and prepare for the future. At Akkodis, you’ll join a dynamic environment that values continuous learning and global collaboration, where you can make a meaningful impact through innovative projects that shape the future of technology.

Scope

We are seeking a Software Engineer to join a high-impact, mission-critical space programme – the Rosalind Franklin rover. This is an exciting opportunity to work on onboard spacecraft software, with long-term visibility and career development opportunities.

Role

The Software Engineer will be responsible for contributing to the design, development, and validation of onboard software for spacecraft systems. This includes working in compliance with ESA and ECSS standards, supporting hardware-software integration, and ensuring rigorous software testing.

Responsibilities

• Contribute to the design, development, and validation of onboard software for spacecraft systems.
• Support UML-based design and documentation in accordance with ECSS standards.
• Develop code in C/C++, with future potential to evolve towards Rust.
• Collaborate using Linux-based development environments and JIRA for task tracking, participating in Agile-style delivery.
• Support hardware-software integration, understanding the limitations and constraints of embedded systems and single-core/multi-core transitions.
• Participate in onboard software testing, ensuring compliance with ESA practices and engineering discipline.

Required Experience

• Proven software development experience, ideally covering the full lifecycle.
• Strong experience in onboard software development, preferably for critical systems
• Hands-on knowledge of ECSS standards (DO-178 knowledge is beneficial but not applicable here).
• Experience working close to hardware and understanding performance constraints.
• Experience designing in UML and managing software lifecycles in collaborative teams.

Required Skills

• Proficiency in C / C++ (openness to Rust in the future is beneficial).
• Scripting or additional languages such as JavaScript are a bonus.
• Experience working in Linux environments.
• Familiarity with Jira or similar project/task management tools.