Senior Design Engineer

JR United Kingdom; Leicester; On-site; GBP 45,000 - 65,000; Full time

Job summary

A high-growth start-up is seeking a Senior Design Engineer to lead mechanical design for innovative hydrogen systems. This role involves developing first-of-a-kind systems, performing detailed design work using 3D CAD, and ensuring compliance with safety standards. Ideal candidates will have a degree in Mechanical Engineering, solid design experience, and the ability to collaborate in a dynamic environment.

Qualifications

• Proven experience in an engineering design role, ideally within complex system environments.
• Experience designing equipment for installation in shipping containers or compact spaces.
• Comfortable working in a fast-paced, development-stage company environment.

Responsibilities

• Lead the mechanical design of modular hydrogen systems.
• Create detailed 3D CAD models and part/assembly drawings.
• Conduct mechanical stress calculations to ensure safety.

Skills

3D CAD

Mechanical Design

Documentation Skills

Structural Integrity

Education

Degree in Mechanical or Design Engineering

Tools

SolidWorks

AutoCAD

Job description

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Cranleigh STEM, Sustainability & SHEQ Recruitment

Location:

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

1

Posted:

06.06.2025

Expiry Date:

21.07.2025

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Job Description:

Cranleigh STEM is proud to partner with a high-growth start-up developing breakthrough technology to accelerate the transition away from fossil fuels.

The company is now recruiting for a Senior Design Engineer to take ownership of mechanical design and container integration for their systems. This role offers the opportunity to contribute to the development of first-of-a-kind systems in a fast-paced, hands-on environment.

• Lead the mechanical design of modular hydrogen systems packaged into standard shipping containers, incorporating process units, pipework, valves, and instrumentation.
• Create detailed 3D CAD models and part/assembly drawings using SolidWorks or AutoCAD.
• Design custom components in a variety of materials (stainless steel, glass, ceramics), producing fabrication-ready specifications for suppliers.
• Generate general arrangement drawings and BOMs; integrate supplier models into internal design workflows.
• Conduct mechanical stress calculations to ensure structural integrity and safe operation.
• Work closely with external suppliers and fabrication partners to ensure components meet technical and quality requirements.
• Support prototype build and assembly, including preparation of clear work instructions for mechanical fitting.
• Ensure compliance with UK and international standards, including safety and regulatory requirements.
• A degree in Mechanical or Design Engineering, or relevant professional experience.
• Proven experience in an engineering design role, ideally within complex system environments.
• Proficient in 3D CAD (SolidWorks, AutoCAD or equivalent).
• Strong file management, drawing control, and documentation skills.
• Comfortable working in a fast-paced, development-stage company environment.
• Experience designing equipment for installation in shipping containers or compact spaces.
• Knowledge of CE/UKCA compliance processes and documentation.
• Experience working with flammable gases or in ATEX/Ex-rated environments.
• Familiarity with solid particle conveyance systems in hazardous conditions.
• Prior involvement in a start-up or early-stage product development setting.