Test Engineer, 's-Hertogenbosch

Our batteries fly. Every cell you characterize, every pack you validate, every thermal limit you test that work ends up in a drone operating in real conditions. The data you produce determines whether hardware ships.

Tulip Tech designs and manufactures silicon‑anode battery systems at 450 Wh/kg energy density, providing 30 to 100% more flight time than anything else on the market. We are backed by a Dutch Ministry of Defence partnership secured in late 2025, and our packs are flying in aircraft built by Acecore, Percepto, DeltaQuad, and Tective. Everything we make is manufactured in Den Bosch. Now we scale.

Why this role matters Tulip Tech is in the industrialization phase. Designs that proved out in prototypes now need to be validated at production volume. Every protocol you build and every dataset you generate becomes the foundation for what ships to customers. This is not a QA function at the end of the chain; it is a core part of the engineering chain. We need a Test Engineer at the medior level with about 3–5 years of hands‑on experience who wants to own the lab, not just work in it.

What You Will Own

Characterize lithium‑ion and silicon‑anode cells across temperature, rate, and cycle conditions relevant to real drone flight profiles

Design, validate, and own battery pack test protocols from first article through production release, aligned to IEC, UN38.3 and ISO standards

Automate test data acquisition and processing pipelines to reduce manual analysis time and enable faster design iteration

Stress‑test packs to failure: thermal, mechanical, safety. Document what breaks and feed findings directly into design decisions

Own root‑cause analysis when anomalies appear in cell or pack data. Write corrective action reports the hardware team can act on

Qualify and maintain test equipment such as battery cyclers, environmental chambers and fixtures so the lab is always ready to run

Job Requirements

Around 3–5 years of hands‑on experience testing lithium‑ion battery cells or packs in a lab or production environment

Familiar with battery cyclers such as Neware, Elektro‑Automatik and Delta Electronics and environmental test chambers

Working knowledge of IEC, UN38.3 or ISO standards for battery testing

Experience writing or running test automation scripts; Python preferred but any scripting background transfers

Strong technical documentation skills– your test plans and results need to be clear enough for hardware engineers to act on

If you meet most but not all of the above, apply anyway

Nice to have

Experience with silicon‑anode or solid‑state battery chemistries

Background in electric aviation, drone systems or defense hardware

What we offer

Competitive salary between€4,000–€4,700 gross per month (based on experience)

38 paid days off per year (25 vacation + 13 ADV via CAO Metaal&Techniek)

8% holiday allowance, travel reimbursement and pension via PMT

Daily lunch provided by the company

A startup culture with team outings and events

Freedom to shape your role and take real ownership

Ready to test something that flies? The data you generate at Tulip Tech does not sit in a report– it determines what we ship and how we improve it. Den Bosch. On‑site. Full‑time. Let’s talk.

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