Senior Fuel Cell Systems Engineer

Zero Avia is leading the transition to zero-emission aviation through the development of hydrogen-electric propulsion systems for civil and defence aerospace applications. As the world's only Design Organization Approved business focused exclusively on hydrogen-electric aviation, we have achieved significant flight test and regulatory milestones with the UK CAA and FAA and secured more than 3,000 pre-orders from airlines, OEMs and defence customers globally.

Joining Zero Avia means being part of a team pioneering the future of aviation and delivering lasting impact for the planet and its people.

As Zero Avia scales its hydrogen-electric propulsion programmes, the Fuel Cell Systems Engineer will play a key role in transforming fuel cell technology into a fully integrated, certifiable aerospace product. Working across system architecture, requirements, interfaces and validation activities, you will bridge the gap between component technologies and aircraft-level integration. This role offers the opportunity to solve complex engineering challenges, collaborate across multiple disciplines and help deliver the systems that will enable safe, reliable and commercially viable zero-emission flight.

• Lead supplier management and development activities for LTPEM fuel cell systems, ensuring timed delivery, quality, and compliance with programme requirements.
• Act as the technical expert for LTPEM fuel cell, providing subject matter expertise and supporting design reviews for interfaces and balance-of-plant fluid systems.
• Support the test team in diagnosing, troubleshooting, and resolving fuel cell system performance issues during development and validation testing.
• Own and maintain fuel cell system documentation, including technical requirements, interface definitions, compliance evidence, and supporting design documentation.

• Understanding of PEM fuel cell electrochemistry, including key operating principles, performance drivers, and limitations.
• Experience integrating PEM fuel cell stacks into complex systems, ideally for transport or aerospace applications, with practical experience resolving integration challenges.
• Experience analysing PEM fuel cell test data to assess stack health, performance, degradation trends, and failure indicators.
• Experience developing and managing requirements for aerospace (or similar) systems, hardware, or safety-critical products
• Experience applying operational and functional analysis to the development of fuel cell systems, electric propulsion systems, or related products.

• Experience using engineering tools such as LabVIEW, Polarion, and DIAdem.
• Expertise in ARP
  4754B requirements processes, including requirements capture, validation, decomposition and traceability.
• Experience with Teamcenter PLM or similar systems.

We want to help you be your best self, at work and at home, that’s why we provide our employees with…

• Private health and dental care
  – get access to services and support when you need them. Add your family members too.
• Mental health support
  – enjoy a culture where positive mental health is front of mind with our trained Mental Health First Aiders, Employee Assistance Programmes and wellbeing support.
• Free lunch and healthy snacks
  – keeping you fuelled up so you can help us deliver the technology of the future**
• Sports, games and culture clubs
  – connect and keep fit with other Zero Avians by joining one of our clubs – such as, running, cycling, padel, trivia, theatre and gardening.

• Stock options
  – so you can share in our success.
• 25 days holiday, plus public holidays and additional days awarded for long service
  – to help you manage your work-life balance.
• Free EV Charging
  and membership in our EV Club.
• Sal…