CNC Single Point Diamond Turning Operator

CNC Single Point Diamond Turning Setter/Operator

G&H Ilminster, Somerset

Full-Time, Permanent | Monday to Friday

Rotational shift work after training (with a 20% shift premium)

Are you experienced in CNC turning?

Looking for a role in a cutting-edge, world-class optics company?

If so, we want to hear from you!

We are seeking a highly skilled CNC Single Point Diamond Turning (SPDT) Operator to manufacture ultra-precision components to extremely tight tolerances and surface finish requirements. The successful candidate will be responsible for setting up, and operating CNC diamond turning machines to produce high-quality optical and precision-engineered parts.

G&H is a global leader in optical design, testing, and manufacturing. As experts in the technology of light, we provide high-performance optical systems, assemblies, and components for a wide range of demanding applications. In our Diamond Turning department, we produce custom lenses for imaging, focusing, collimation, and illumination. Our work involves crafting spherical, semi-spherical, and aspheric lenses using state-of-the-art 5‑axis grinding and polishing machines.

• Interpret ultra-precision engineering drawings, CAD data, and surface finish specifications
• Select and handle diamond tooling with extreme care to maintain tool integrity
• Achieve nanometre-level surface finishes and sub‑micron tolerances
• Conduct first‑off, in‑process, and final inspections using precision metrology equipment
• Monitor and control environmental conditions (temperature, vibration, cleanliness)
• Adjust machine parameters to optimise surface quality, accuracy, and cycle times
  
  Perform routine maintenance, calibration checks, and fault diagnosis
• Work closely with engineering, metrology, and quality teams to support continuous improvement
• Maintain accurate production and inspection records

• Proven experience operating CNC Single Point Diamond Turning machines; or experience in other CNC turning
• CNC programming skills, including G‑code and/or machine‑specific controls (desirable, but not essential)
• Experience working with ultra‑precision materials (e.g. aluminium alloys, copper, nickel‑phosphorus, optical polymers)
• Exceptional understanding of tolerances, form accuracy, and surface roughness
• High level of attention to detail and methodical working approach
• Ability to work independently in a clean, controlled environment

• Competitive salary with a 20% uplift for rotating shift work.
• Generous overtime pay: 1.5x after 39 hours and 2x on Sundays and Bank Holidays.
• 25 days of holiday plus Bank Holidays.
• Pension contributions:
  Company pays 6%.
• Company bonus scheme.
• Health Cash Plan to cover medical expenses.
• £500 referral bonus for recommending friends (terms apply).

Ready to Join a Leader in Optical Technology? Take your career to the next level with G&H. Apply today and be part of a team that’s shaping the future of optics!