Mobile Rail Maintenance Technician – Flexible Hours

Colas Rail UK; Chelmsford; On-site; GBP 32,000 - 42,000; Full time

Benefits offered by this job

34 days annual leave

Full rail training and structured care

Healthcare cash plan

Job summary

Colas Rail UK is seeking Mobile Maintenance Train (MMT) Fitters to join a dedicated railway engineering team. You will maintain and repair MMT trains, follow maintenance schedules, and support safe, reliable operations across the UK.

No prior rail experience is required; full training is provided. The role includes a five-week roster averaging 40 hours per week, with days, nights, weekends, and travel to depots as needed.

Qualifications

• Level 3 qualification in a mechanical or engineering discipline is required.
• Full UK Driving Licence is essential.
• Must be able to work weekends, bank holidays and a shift-based roster.
• Must be computer literate (Microsoft Windows).
• DBS screening and a mandatory medical will be required as part of onboarding.

Responsibilities

• Follow maintenance schedules to ensure fleet reliability and compliance.
• Conduct preventative servicing, inspections and mechanical repairs.
• Diagnose and rectify faults on diesel engines, hydraulic, pneumatic and mechanical drive systems; basic electrical fault finding.
• Prepare trains for overnight operation; provide on-train engineering support as required.
• Complete depot-based servicing and accurate maintenance records.
• Use onboard diagnostics and IT systems (Windows-based).

Skills

Full UK Driving Licence

Computer literate (MS Windows)

Weekend/shift work

Education

Level 3 qualification in mechanical or engineering

Tools

Microsoft Windows

Job description

Colas Rail UK is seeking Mobile Maintenance Train (MMT) Fitters to join a dedicated railway engineering team. You will maintain and repair MMT trains, follow maintenance schedules, and support safe, reliable operations across the UK.

No prior rail experience is required; full training is provided. The role includes a five-week roster averaging 40 hours per week, with days, nights, weekends, and travel to depots as needed.