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Test Technician

West London

Salary + Equity

Supercritical is looking for a Test Technician to join our lab research and development team, based in west London. The role will suit an applicant with a good background in lab-based experimentation. This is an opportunity to join an exciting and purpose-driven startup.


Founded in 2020, Supercritical has built its proof-of-concept, secured private and public funding and is building its first multi-cell 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 Technician to run our test stands.  You’ll work with high pressure, intermediate temperature test stands, carrying out the test plans and the projects they’re contributing to.


  • Conducting high-quality testing to support product development

  • Adhering to test procedures to meet research and development requirements

  • Assisting in the improvement of testing procedures and processes to enhance the quality and consistency of testing

  • Calibrating and maintaining equipment

  • Meeting testing deadlines as per the plan

  • Reporting any variances or issues that affect test results

  • Collaborating with a team to achieve goals

  • Strictly following all safety and operating procedures in the lab

  • Coordinating and communicating work with the wider team

About you

The ideal candidate will possess:

  • A degree in science or engineering

  • Experience in lab-based research/testing

  • Strong analytical skills, problem-solving abilities, and a team-oriented attitude

  • Experience with high pressure and high temperature fluid systems, with knowledge of supercritical water conditions being an advantage

  • Experience in maintaining and operating test stands

  • Knowledge of risk assessments & good lab practice.

  • A passion for product development and a commitment to a net-zero environment

  • Strong organisational and communication skills

  • Proactivity and self-motivation

  • Knowledge of laboratory health and safety protocols

  • Ability to understand and execute standard operating procedures

  • Familiarity with unexpected results or issues


Additional desirable qualifications include:

  • Experience in electrolyser cell system testing

  • Basic knowledge of data logging and hardware control

  • Experience in automation, high-throughput experimentation, data science, programming, and research development

  • Knowledge of HAZIDs and HAZOPs

  • Training in first aid and fire warden for a lab/workshop environment

  • High-level understanding of electrochemical technology and equipment for troubleshooting purposes.

Direct applicants only - no agencies  

Supercritical are not currently in a position to sponsor overseas applications

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