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Development Engineer

West London
Salary + Equity

Does clean technology innovation excite you? Are you a problem solver? Do you want to have your ideas heard, work in a small, dynamic team, putting great ideas to work quickly in pursuit of a cleaner environment? You might be exactly what we’re looking for! 


Supercritical is looking for an experienced and dynamic Development Engineer to join our dedicated R&D team. The problems are many and the solutions are there to be created. As a start-up, we move quickly and nimbly in response to new findings and data. Working at the forefront of electrolyser development, mapping an entirely new operating regime, we’re overcoming challenges that have been considered before! We want to grow our team with curious, technically driven and commercially focused leaders. 


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 Development Engineer that will accelerate and strengthen our technical team in its cell and module development, manufacturing processes and test facilities.


  • Tackling technical challenges with innovative solutions, from mechanical design to coating processes or modelling to electrochemical trials, your best ideas will be put to the test.

  • Scoping and managing external development partners in delivering work programmes essential to the core electrolyser’s development.

  • Designing, specifying, procuring, building and commissioning test-rigs.

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

  • Supporting control and automation activities to maximise the efficiency of lab operations.

  • Defining and optimising designs of experiment across novel process development or test conditions.

  • 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.

  • Working with the wider engineering team when considering scale up of learnings in the lab.

  • Support in a wider range of activities that are crucial to enabling Supercritical’s success.

About you

The ideal candidate will possess:

  • Thrive in a startup environment as a self-starter and proactively identify problems and pursue solutions. Flexibility and responsiveness in a fast-paced, dynamic, small-team environment

  • Be passionate about a net zero environment, excited by innovation and proactive in your pursuit of it.

  • Have a PhD in a science or engineering discipline or a Masters with 3+ years of industrial experience

  • Be able to work well in a team whilst also self-driven and autonomous on the task at hand.

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

  • Have experience in automation and safety systems.

  • Familiarity with risk assessments/GLP.


Additional desirable qualifications include:

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

  • Use of swagelok fittings/components.

  • Basic understanding of electrochemistry, catalysis, chemical engineering.

  • Experience using MATLAB and/or (C/Python).

Direct applicants only - no agencies  

Supercritical are not currently in a position to sponsor overseas applications

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