Power Electronics Expert (F/M)

About Exotrail

Born from a strong ambition to reach for the stars, Exotrail is a fast-growing scale‑up founded in 2017. Its mission is to develop and commercialise 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 a Power Electronics Exper at our Massy site, to support the rapid growth.

Attached to the R&D Team , you will be responsible for:

• Providing expertise and tech
• Supporting advanced research
• Collaborating with cross‑functional teams

Main Responsibilities

• Reviewing and approving technical documents, both generated internally and with suppliers and customers,
• Leading specific activities linked with research and development activities on power electronics applied to electric propulsion and at satellite‑level,
• Help develop the technical expertise of the team through the writing of best practices and design guidelines,
• Be the reference to define test plans, validation strategies and technological roadmap on power electronics,
• Identifying innovative technologies (topologies, architectures, suppliers, …) or methodologies to be further studied,
• Mobilising resources for exploration of innovative technologies and methodologies,
• Representing Exotrail in seminars and forums, sharing their expertise and promoting the company’s vision and capabilities.

Preferred Experience

• Education: Masters’ or PhD in electrical engineering or related field
• Experience: 10 years in power electronics (100 – 1000W) for defence systems. Experience in the space sector is ideal and appreciated.
• Strong knowledge and experience of the design of a complete power electronics system (hardware to software), including filtering.
• Software/firmware for power electronics control.
• Expertise in simulation tools (LTspice).
• Strong technical leadership in multi‑team technical meetings and a high level of agility.
• Strong verbal and written communication skills, with colleagues and external stakeholders in French and English (B2 min).
• Creativity vs unexpected technical issues (design, assembly, …)

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

• Interview with our Talent Acquisition Manager: you will learn more about the position and our culture;
• On‑site interview with your future manager (CTO): you will discover your work environment and learn more about the required qualifications, and you can make sure that you share the same vision and values of the company;
• Technical Interview with the team: to assess your technical skills and alignment with the role.