Senior Mechanical Design Engineer

5 days ago

London, Greater London, United Kingdom Tech Connect Group Full time £60,000 - £120,000 per year

I'm hiring on behalf of a pioneering clean-energy technology company, supporting them in securing an experienced
Senior Mechanical Design Engineer
for a 3-month paternity cover contract. This role sits within their R&D function and focuses on mechanical design for next-generation electrochemical hardware.

If you're motivated by meaningful engineering challenges and want to contribute to a mission-led organisation aiming to change the future of green energy, this is a great short-term opportunity.

The Opportunity

You'll work closely with the technical leadership team on key mechanical componentry for their novel electrolyser system. Expect high-impact work, rapid iteration, and the chance to influence designs at an early, innovative stage.

What You'll Be Doing

  • Producing detailed CAD designs and drawings (OnShape preferred; SolidWorks acceptable).
  • Delivering fully-specified drawings, BoMs, and design data for manufacturing and procurement.
  • Identifying design and process improvements across mechanical components and assemblies.
  • Providing technical leadership or support on product development and improvement projects, including working with external suppliers.
  • Applying rapid-iteration principles: fast prototyping, fail-fast learning cycles.
  • Contributing to design and safety reviews (FMEA, HAZOP).
  • Collaborating closely with electrochemical, process, safety, and electrical engineering teams.
  • Managing component suppliers and expediting critical parts when needed.

About You (Essential)

  • Degree (BEng or equivalent) in Mechanical Engineering.
  • 4+ years' experience in mechanical design engineering, including component design for high-volume manufacture.
  • Strong CAD capability and experience producing engineering drawings to BS8888 standards.
  • Experience participating in safety methodologies (e.g., HAZOP, FMEA).
  • Self-starter, able to operate effectively in a fast-paced, innovative environment.
  • Strong organisational skills and attention to detail.
  • Comfortable managing multiple workstreams simultaneously.

Desirable Experience

  • Knowledge of hydrogen systems, electrolysers or fuel cells.
  • Familiarity with high-pressure equipment design (ASME VIII div 3, PD5500, EN
  • Experience with corrosive service materials selection.
  • Background in early-stage product development and moving designs toward commercialisation.
  • Exposure to supercritical water reactor technology.

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