Senior Mechanical Build Technician

H-Power is a UK-based, AIM-listed clean energy company developing zero-emissions hydrogen power systems. Using ammonia to produce low-carbon hydrogen at the point of need, and fuel cells to convert it into reliable, off-grid power, H-Power offers a scalable, practical alternative to fossil fuels, serving construction, infrastructure, transport and power generation sectors. Behind the technology is a team driven by a shared purpose: to accelerate the shift away from fossil fuels.

H-Power is seeking a skilled Senior Mechanical Build Technician to join the Prototype Machining and Fabrication team. You'll take ownership of complex mechanical builds from tube assemblies and piping systems through to full system and facilities installations bringing expertise and initiative to every project.

This role would suit an experienced build technician who thrives working hands-on with complex systems, enjoys solving build challenges and wants to be part of a team making a real difference in the clean energy transition.

Responsibilities include

• Building and installing complex mechanical systems, pipework and technical hardware independently and as part of a team
• Assembling tube, pipe and valve systems using compression fitting systems
• Supporting the build of larger engineered systems and prototype assemblies
• Installing mechanical pipe runs, valves and associated system hardware to engineering drawings and specifications
• Following work instructions and producing build documentation where required
• Maintaining high health & safety standards, including COSHH and risk assessment compliance
• Ordering consumables and supporting efficient management of build materials
• Identifying and resolving practical build issues, feeding back improvements to the Engineering Team
• Supporting facilities upgrades and infrastructure installation projects

We’re keen to speak with people with experience in:

• Extensive hands-on experience building complex mechanical systems
• Mechanical assembly within gas handling, process equipment, aerospace, specialist gas, laboratory or similar technical environments
• Tube, pipe, valve and mechanical system assembly
• Compression fitting systems (Swagelok, Parker, Fitok or similar)
• Reading and interpreting engineering drawings and technical documentation
• Building larger integrated mechanical systems or technical infrastructure
• Strong practical problem-solving skills within prototype or engineering build environments
• Safe working practices including COSHH, risk assessments and workshop/site safety awareness
• Basic turning and milling experience (desirable but not essential)

Package & Benefits

• Competitive salary
• Performance bonus scheme
• Company Share Option Scheme
• Bupa private healthcare
• Contributory pension
• 25 days annual leave + bank holidays
• Life insurance
• Flexible working hours | 37.5 hrs/week
• Employer-funded training: induction, H&S, CPD, management & compliance
• Up to 4 weeks contractual sick pay per rolling 12 months

H-Power have appointed Cranleigh STEM as their exclusive RPO recruitment partner. To find out more or to apply, reach out to Lewis at Cranleigh STEM directly ***email_hidden***