Battery Systems Engineer - Applications & Validation

Nabla; Diemen; On-site; EUR 60,000 - 90,000; Full time

Job summary

Moonwatt is expanding its engineering team to bring battery energy storage systems from design to mass production. The Applications Engineer will design, validate and qualify hardware and systems, bridging product development and customer applications.

You will work with seasoned engineers and grow scope over time, owning outcomes in a small team. Key responsibilities include validating BMS electronics, wiring harnesses and DC-DC converters, and leading compliance work with UL/IEC standards.

Qualifications

• Strong electrical engineering background.
• 3–5 years of experience in power systems and project/product design, with growing autonomy.
• Higher seniority welcomed; scope can include supplier relationship management.
• Hands-on experience with electrical component selection, testing and qualification.
• Exposure to compliance and certification processes (UL/IEC) is a strong plus.
• Fluent in English; other languages are a plus.

Responsibilities

• Design, validate and qualify hardware and systems for battery energy storage.
• Bridge hardware, firmware and software teams on system capabilities and trade-offs.
• Own systems engineering calculations for usable energy, operating windows and power limits.
• Act as technical interface between Sales and R&D to translate customer requirements into engineering specs.
• Support field validation, pilot deployments and customer discussions.

Skills

Electrical engineering

Power systems

Technical design

Technical communication

Job description

Moonwatt is expanding its engineering team to bring battery energy storage systems from design to mass production. The Applications Engineer will design, validate and qualify hardware and systems, bridging product development and customer applications.

You will work with seasoned engineers and grow scope over time, owning outcomes in a small team. Key responsibilities include validating BMS electronics, wiring harnesses and DC-DC converters, and leading compliance work with UL/IEC standards.