About Exotrail 🚀

Born from a strong ambition to reach for the stars, Exotrail is a fast-growing scale-up founded in 2017. Its mission: to develop and commercialize propulsion systems for small satellites on a global scale.

We design products focused on impact, fast delivery, and continuous improvement. Inspired by the digital world, we are firmly customer-oriented and driven by an entrepreneurial spirit.

We manage risks to push boundaries and achieve results that would not be possible within a traditional space model.

We deploy every necessary resource to support the development of our products, whether in propulsion or in-orbit services. Strengthened by an innovative mindset inherited from our early days, we are preparing to grow into an ambitious industrial company.

Job Description 👨‍💻

We are looking for an Embedded Software Engineer at our Massy site, to support the rapid growth.

Attached to the System Engineer Team, you will contribute to the design, development, verification, and validation of embedded software dedicated to propulsion systems. You will also develop ad hoc software tools supporting testing and V&V activities.

Working closely with multidisciplinary teams, you will help ensure the quality, reliability, and compliance of software deliverables in accordance with space industry standards (ECSS, DO-178C, IEEE, MISRA) and internal development processes.

You will collaborate with System, Electronics, Software, Test, Plasma, Mechanical & Thermal, Industrial, Quality, and Project teams in a highly technical and fast-paced environment.

Main responsibilities:

📌 Design, develop, test, and maintain embedded software for real-time constrained systems.

📌 Develop software tools for test benches, verification, and validation activities.

📌 Contribute to software requirements definition and ensure traceability between requirements, code, and tests.

📌 Define and execute automated test campaigns and support software qualification activities.

📌 Collaborate with multidisciplinary teams on software architecture, technical reviews, and documentation

Preferred Experience 💁‍♀️

Technical skills

📌 Strong proficiency in embedded C/C++ and Python for test automation tools.

📌 Experience with communication protocols such as CAN, RS422, RS485, and UART.

📌 Knowledge of RTOS, low-level drivers, and embedded software architectures.

📌 Familiarity with ECSS, DO-178C, IEEE, and MISRA standards and development tools.

📌 Experience with GitLab, static analysis tools, debugging environments, and software configuration management.

Soft skills

📌 Strong analytical, organizational, and problem-solving abilities.

📌 Autonomous, rigorous, and detail-oriented mindset.

📌 Ability to work effectively within multidisciplinary and multicultural teams.

📌 Clear written and verbal technical communication skills.

📌 Professional proficiency in French and English.

About our recruitment process 🤝

We are committed to recruiting the right people for the right job regardless of your private background.

We meet at least three times in order to give you a better idea of what it's like to work at Exotrail:
1. Interview with our Talent Acquisition Manager: you will learn more about the position and our culture
2. Technical Interview with someone from the team: you will discover your work environment and learn more about the required qualifications
3. On-site interview with your future manager: you can make sure that you share the same vision and values of the company