Research and Development Test Engineer

R&D Engineer I Energy Storage

I’m working with a scaling energy storage start-up in London that’s looking for an R&D Engineer to help take its technology from lab prototypes towards pilot-scale systems.

This is a hands-on role for someone who enjoys building test rigs, running experiments and using the results to improve a design. You’ll work closely with scientists and engineers in a small team, with the chance to own experiments from the initial question through to the next design iteration.

What you’ll be doing

• Design and run experiments to understand how prototypes perform, where they fail and what needs to change.
• Build, instrument and troubleshoot test rigs, developing test methods that produce reliable, repeatable data.
• Analyse results and work with the wider team to turn findings into practical design changes.
• Help translate lab findings into engineering requirements for pilot-scale hardware.
• Document test methods, results and design decisions so the team can build on your work as it scales.

What we’re looking for

• Hands-on R&D, prototyping or test experience in energy storage or a related hardware field such as batteries, fuel cells or electrolysers.
• Experience planning experiments, working with instrumentation and interpreting data to solve engineering problems.
• An engineering or applied science background, with the ability to work across disciplines in a small team.
• Experience taking hardware from the lab into a pilot or demonstrator would be valuable.

If you enjoy getting into the lab, figuring out why something behaves the way it does and seeing your work shape the next build, I’d love to hear from you.

Apply with your CV or message me directly for a confidential chat.