Expert Battery System Engineer.

Medium-voltage.

WHAT WE'RE LOOKING FOR

    • Architecting and validating the electrical and physical design of a medium-voltage battery system for maritime applications (+5,000 VDC).

    • Defining insulation, thermal protection, fault containment, and grounding strategies. Conducting safety and failure mode analyses (FMEA, arc flash, etc.) in line with marine certification standards.

    • Collaborating with BMS and converter engineers to ensure safe and reliable system-level operation.

    • Selecting and qualifying cells and components that meet MV electrical and maritime mechanical requirements.

    • Supporting lab integration, test planning, and type approval documentation (e.g., DNV, BV, ABS).

    • Providing input into the manufacturing and industrialization plan for MV battery modules.

    • MSc or PhD in Electrical Engineering, Power Systems, or related discipline.

    • Minimum 5 years of experience in high-voltage or medium-voltage energy storage systems.

    • Proven experience in battery module design, especially in high-reliability or safety-critical environments (marine, rail, aerospace, etc.).

    • Familiarity with shipboard electrical architectures, maritime standards (IEC 60092, IEC 62485), and classification body requirements.

    • Strong command of tools for electrical simulation CAD (SolidWorks/EPLAN), and safety analysis.

    • Excellent analytical skills and a hands-on, solution-driven mindset.

    • Strong communication skills in English & French

    • Experience working with MMC converters or hybrid marine propulsion systems.

    • Prior exposure to type approval processes for maritime or offshore systems.

    • Experience with fire suppression, mechanical integration, and naval safety constraints.

    • Competitive salary and benefits package.

    • Bonus based on performance.

    • Opportunity to work on cutting-edge battery technology.

    • Collaborative, supportive, and fun work environment!

    • Potential for professional growth and development.

Vaar Systems is an ambitious and fast-growing startup on a mission to revolutionize marine propulsion with high-performance, clean energy systems. At Vaar, we don’t just build batteries—we engineer integrated energy solutions that electrify the future of marine transport.

We're currently looking for a talented and driven Expert Battery System Engineer with a strong background in medium-voltage (MV) battery design to join our core MARINEPOWER development team. Based in our Andenne office, you will be part of a multi-disciplinary team developing one of the first fully integrated MV battery + converter systems for direct ship propulsion.

This is a unique opportunity to work at the frontier of marine electrification, help define the technical architecture of a next-generation battery system, and shape a fast-moving company from the inside.

Didn’t find what you were looking for?

Are you passionate about battery technology and eager to join an innovative team? Even if there isn't a current opening that matches your skills, we'd love to hear from you. Submit your CV and a brief cover letter, and we'll keep your information on file for future opportunities.