Senior Machinist

Job description

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 looking for an experienced Senior Machinist to take a lead role in the Machine Shop. You'll manage CNC programming and operations, CAD/CAM design work and tooling management playing a vital part in delivering the high-precision components that underpin H-Power's clean energy technology.

This role would suit a skilled machinist who is comfortable working independently, contributing to design decisions and taking ownership of machine shop resources and output quality.

Responsibilities include:

• Programming, setting and operating 3 and 5-axis CNC machinery to produce high-precision components
• Using CAD/CAM software (Fusion 360 / SolidWorks) to create and optimise machining programmes, fixtures and components
• Machining complex prototype and low-volume components, including exotic and high nickel alloy materials
• Operating manual turning and milling machinery where required
• Managing tooling, materials and consumables inventory to support machine shop output
• Maintaining accurate machining records, crib sheets and build documentation
• Contributing to design reviews, manufacturability discussions and route-to-manufacture planning
• Supporting the development and continuous improvement of machine shop capability
• Supporting prototype builds, test hardware and subsystem manufacture as required

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

• Strong hands-on CNC machining experience, including 5-axis programming and operation
• CAD/CAM programming using Fusion 360, SolidWorks or similar
• Siemens and/or Mazatrol machine controls
• Machining precision prototype or low-volume engineered components
• Working with stainless steel, exotic alloys or high nickel materials
• Manual turning and milling to tight tolerances
• Inspection using standard metrology equipment
• Reading and interpreting engineering drawings
• Stable engineering/manufacturing background within aerospace, motorsport, defence, advanced manufacturing or similar precision engineering environments

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 lewis@cranleighstem.co.uk

Extra information

Status

Open

Education Level

Secondary School

Location

Cranleigh

Type of Contract

Full-time jobs

Published at

20-05-2026

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English