CNC Machine Shop Production Supervisor
Listed on 2026-01-09
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Manufacturing / Production
Manufacturing Engineer, Lean Manufacturing / Six Sigma, Production Manager
Location
Stoke Mandeville, Aylesbury, HP22 5BL
Salary£60,000 - £65,000 + KPI Bonus (OTE £66,000 - £75,000)
About UsGibbs Gears is an innovative, state‑of‑the‑art precision engineering company specialising in the design and manufacture of high‑quality gears, shafts, transmission, and complex CNC machined parts for industries like aerospace, motor sport, and advanced technologies. We are pushing the boundaries of world‑class manufacturing standards and are looking for skilled CNC professionals to join our team.
Role OverviewThe CNC Machine Shop Production Supervisor is a hands‑on technical leader responsible for driving performance, discipline, and continuous improvement across CNC turning and milling operations. This role combines advanced CNC capability with shop‑floor leadership. The successful candidate will actively support programming and setting, lead a team of CNC setters and operators, improve OEE, takt time, spindle uptime, and deliver consistent OTIF‑to‑stock performance.
The role is designed for a high‑calibre individual with the ambition and capability to progress into a Head of Manufacturing position as the business grows.
- Act as the senior technical authority on the shopfloor for CNC turning and milling.
- Hands‑on support with Fanuc programming (G‑codes, M‑codes, probing, offsets).
- Support and optimise setting and changeovers on CNC lathes and mills.
- Develop, refine, and troubleshoot offline CAM programs (Solid
CAM preferred). - Optimise tooling, feeds/speeds, and cutting strategies to improve cycle times and tool life.
- Knowledge of CNC grinding and EDM is beneficial but not essential.
- Drive daily execution of the production plan across CNC assets.
- Improve OEE, reduce takt time, and increase spindle uptime.
- Identify and eliminate downtime caused by tooling, programming, material, or inspection delays.
- Maintain strong shopfloor discipline, job progress visibility, and ERP accuracy (Mie Trak / Seiki AIR).
- Ensure machines are consistently loaded, set, and productive.
- Lead and deliver structured CI initiatives using Lean Manufacturing, Six Sigma / DMAIC, 5S, SMED, Poka‑Yoke.
- Own root cause analysis and corrective actions for performance losses.
- Deliver measurable improvements in efficiency, uptime, scrap reduction, and throughput.
- Lead, coach, and mentor CNC setters and operators.
- Run daily huddles, shift handovers, and regular one‑to‑ones.
- Build a strong, engaged, and accountable team culture.
- Identify skills gaps and support training and cross‑skilling plans.
- Be an integral part of the recruitment and interview process for CNC roles, assessing technical competence and cultural fit.
- Support onboarding and early performance of new starters.
- Ensure machining processes meet drawing, GD&T, and quality requirements.
- Support NCR investigations with technical input and corrective actions.
- Promote right‑first‑time machining and strong setup discipline.
- Maintain high standards of 5S, housekeeping, and safe working practices.
- OEE improvement across CNC assets.
- Takt time and cycle time reduction.
- Spindle uptime improvement.
- OTIF‑to‑stock performance.
- Scrap and rework reduction.
- Delivery of CI projects.
- Team capability, retention, and quality of hires.
- Minimum 10 years' CNC machining experience (turning and milling).
- Strong Fanuc programming capability.
- Hands‑on experience in programming, setting, and troubleshooting CNC machines.
- Offline CAM programming experience (Solid
CAM preferred). - Proven experience improving machine performance (OEE, cycle time, uptime).
- Previous leadership, mentoring, or supervisory experience in a CNC environment.
- Time‑served apprenticeship or NVQ Level 3 / HNC / HND in Engineering or Manufacturing.
- Lean Manufacturing training.
- Six Sigma Yellow or Green Belt (preferred).
- IOSH Managing Safely (desirable).
- Technically credible, calm, and respected on the shopfloor.
- Structured problem‑solver with a data‑driven mindset.
- Strong communicator and…
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