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R&D Test Engineer

Lab based (west London) - £25-35K (dependent on experience)

Supercritical is looking for an experienced and dynamic Test Engineer to join our dedicated R&D team.  Founded in 2020, Supercritical has built its proof of concept, secured private and public funding and is moving forward to build its first module.  You will join an exciting and fast moving company that is intent on disrupting the energy industry and enabling a net zero future.


An electrolyser is a complex electrochemical system which can sit in any number of value chains.  Supercritical’s key sectors include chemicals, energy, heavy industry and transport, and we need a Test/Systems Engineer that will accelerate and strengthen our technical team in its test facilities and pilot plant design.


  • Designing, specifying, procuring, building and commissioning test-rigs for the supercritical electrolyser.

  • Introducing integrated data acquisition of the test-rig (eg. pressure, temperature, power input, product purity).

  • Introducing automated safety systems and shutdown features to enable unsupervised testing.

  • Enabling electrolyte recirculation and replenishment.

  • Running experimental protocols.

  • Identifying improvements and optimisations that can be introduced in the test-stand.

About you

You will:

  • Have a degree in a science or engineering discipline.

  • > 2 years of industrial experience.

  • Experience in Labview or programming (C/Python).

  • Be able to work with vendors to spec hardware and software.

  • Have experience in automation and safety systems.

  • Able to design and build test stands.

  • Familiarity with risk assessments/GLP.


  • Experience with high pressure or high temperature gas and fluid systems.

  • Use of swagelok components.

  • Basic understanding of electrochemistry.

Direct applicants only - no agencies  

Supercritical are not currently in a position to sponsor overseas applications

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