CNC Maintenance Engineer

Polytec Personnel Ltd; Ely; On-site; GBP 42,000 - 54,000; Full time

Job summary

Polytec Personnel Ltd seeks an experienced CNC Maintenance Engineer to support reliability and performance in a multi-axis CNC environment at Ely. You will respond to machine breakdowns, develop preventative maintenance strategies and help maximise equipment efficiency.

Responsibilities include planning TPM activities, diagnosing faults, and driving continuous improvement with TPM, Kaizen, and PDCA while collaborating with production teams to enhance machine performance.

Qualifications

• Requires an engineering apprenticeship or equivalent qualification.
• At least five years’ experience maintaining CNC machining equipment in manufacturing.
• Strong mechanical and electrical maintenance experience on multi-axis CNC milling machines.

Responsibilities

• Provide first-line maintenance to minimise production downtime from CNC breakdowns.
• Plan and maintain TPM activities across CNC equipment.
• Develop preventative maintenance schedules to improve machine reliability.
• Diagnose and resolve mechanical, electrical, hydraulic, pneumatic, vacuum and control faults; basic three-phase electrical work.

Skills

CNC maintenance

Multi-axis milling

Electrical maintenance

Mechanical maintenance

Three-phase electrical

PLC diagnostics

CNC controls

Root cause analysis

TPM/PM programs

Lean/5S/PDCA

Education

Engineering apprenticeship

Equivalent engineering qualification

Tools

Fanuc CNC

Siemens CNC

Haas CNC

Heidenhain CNC

CMMS

Job description

Location: Ely (CB6) • Type: Permanent • Hours: Monday to Friday 8.00 am – 4.30 pm • Salary: Competitive • Job Reference: 36213

We are seeking an experienced CNC Maintenance Engineer to support the reliability, performance and continuous improvement of a multi‑axis CNC machining environment. Working as part of a multidisciplinary maintenance team, you will respond to machine breakdowns, develop preventative maintenance strategies and help maximise equipment efficiency.

Responsibilities

• Provide first‑line maintenance support for CNC machine breakdowns to minimise production downtime
• Plan, implement and maintain Total Productive Maintenance (TPM) activities across CNC equipment
• Develop and manage preventative maintenance schedules to improve machine reliability
• Diagnose and resolve mechanical, electrical, hydraulic, pneumatic, vacuum and control system faults
• Perform electrical fault‑finding and basic three‑phase electrical maintenance
• Conduct root cause analysis and implement corrective actions to prevent recurring issues
• Drive continuous improvement initiatives using methodologies such as TPM, Kaizen, 5S and PDCA
• Work closely with production teams to promote best machining practices and maximise equipment performance
• Support the procurement, installation and commissioning of new CNC equipment
• Assess maintenance risks and recommend appropriate critical spare parts
• Train and support operators in routine preventative maintenance activities where appropriate
• Collaborate with stakeholders to develop long‑term maintenance and equipment improvement strategies

Requirements

• Completed a recognised engineering apprenticeship or hold an equivalent engineering qualification and at least five years’ experience maintaining and servicing CNC machining equipment within a manufacturing environment
• Strong mechanical and electrical maintenance experience on multi‑axis CNC milling machines
• Good knowledge of hydraulics, pneumatics, vacuum systems, PLC diagnostics and basic PLC programming
• Experience diagnosing electrical faults and carrying out basic three‑phase electrical work
• Familiarity with major CNC control systems such as Fanuc, Haas, Siemens, Heidenhain or similar
• Proven experience implementing preventative maintenance programmes and Total Productive Maintenance (TPM)
• Understanding of maintenance management systems (CMMS) and preventative maintenance planning
• Knowledge of Lean Manufacturing and continuous improvement techniques, including TPM, Kaizen, 5S and PDCA
• Strong problem‑solving and root cause analysis skills
• Excellent communication skills with the ability to work collaboratively across engineering and production teams
• High attention to detail and a proactive approach to improving equipment reliability and operational efficiency