A leading clean energy technology company is hiring a Mechanical Design Engineer to support the development of next-generation fuel processing and fuel cell generator systems. If you enjoy solving complex mechanical packaging challenges, designing industrial plant equipment, and taking products from concept through to build and production, this is a hands-on engineering role with real-world impact.
Mechanical Design Engineer
Permanent, Full-time
£ Competitive + Benefits
Cranleigh, Surrey
Mechanical Design Engineer
Responsibilities:
Develop innovative mechanical and structural design solutions for fuel-processing plant and fuel cell generator systems.
Create 3D CAD models and detailed 2D drawings for welded parts, assemblies, skids, piping and plant equipment.
Support product development from concept through prototyping, testing and production.
Undertake FEA, manual stress analysis and hand calculations to validate designs.
Work from P&IDs to design skids, plant layouts, piping, tubing and supporting frameworks.
Lead and contribute to internal peer reviews and formal design reviews with stakeholders.
Collaborate closely with manufacturing, electrical, quality and procurement teams to ensure functional, cost and quality requirements are met.
Produce supporting documentation including BOMs, work instructions and technical reports.
Support build and prototyping activities, resolving design issues during assembly where required.
Apply risk analysis and prevention tools such as DFA/DFM, HAZOP, HAZID, DFMEA and root cause analysis.
Mechanical Design Engineer
Requirements:
Degree qualified (or equivalent) in a relevant engineering or scientific discipline.
At least 3 years’ industry experience in mechanical design within industrial, process, automotive, aerospace, marine or related sectors.
High proficiency in 3D CAD tools (preferably SolidWorks) and PLM systems.
Strong understanding of GD&T, engineering standards and manufacturing processes.
Ability to perform hand calculations and stress analysis to support design decisions.
Excellent communication skills and the ability to work effectively within multidisciplinary teams.
Desirable:
Experience designing welded fabrications, skids, piping and industrial plant equipment.
Knowledge of materials selection, welding and fabrication techniques.
Experience with risk analysis methodologies (HAZOP, DFMEA, DFA/DFM).
Working towards Chartered status or CSWP / CSWE certification.
If this sounds like you, apply or contact me directly at gareth@cranleighstem.co.uk
Cranleigh STEM is a specialist recruitment partner in STEM, Sustainability, and SHEQ. We work with innovative organisations and purpose-led professionals to help solve some of the world’s most pressing challenges, from advancing clean technologies to driving scientific discovery.
We understand that progress in these fields depends on people. Our role is to connect the right individuals with the right teams, whether that’s scientists in the lab, engineers on the ground, or leaders at the helm.
🚀 Our Mission
To support innovative organisations by delivering the talent they need to grow, evolve, and make a meaningful impact in their field.
🔎 Our Core Values
Challenge
We’re comfortable working in complex, technical spaces. We approach every brief with curiosity and care, asking the right questions to deliver people who can genuinely move your organisation forward.
Collaboration
We see recruitment as a partnership. That means open communication, transparency, and shared goals, whether you’re building a team or looking for your next role.
Commitment
We take pride in the work we do. We’re committed to high standards, long-term relationships, and doing what’s right for our clients, our candidates, and the industries we serve.
💡 Our Purpose
To contribute to a more sustainable and innovative future by helping organisations in science and technology attract and retain the talent they need to grow responsibly and with purpose.
🌍 Our Reach
Headquartered in South London, we work with clients and candidates across the UK, Europe, and the USA.
🔬 Areas of Expertise
Biotechnology
Pharmaceuticals
Chemicals & Materials
Food Technology
Clean Technology
Electric Vehicles & Sustainable Engineering
If you're hiring or exploring your next move in STEM, we’re here to help.
