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Mars UK • Slough, Berkshire, United Kingdom

Maintenance Supervisor (Shift Based)

Salary:  £52,000 – £65,000 per annum
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Job Description

Job Description:

Maintenance Supervisor (Shift Based)

Location: Slough
Shift Pattern: 2 Days (07:00–19:00), 2 Nights (19:00–07:00), 4 days off
Salary: £52,000–£65,000 + Shift Premium + Bonus + Benefits


We’re looking for a Maintenance Supervisor to join our Slough site. You’ll lead a team of 12 Associates, ensuring every shift runs safely and smoothly so our people and machines can perform at their best. From coaching and developing your team to delivering operational maintenance, you’ll play a key role in keeping production moving and building a culture of continuous improvement.

What are we looking for?

  • Experience in leading or supervising a maintenance team within a manufacturing or FMCG environment.
  • Recognised engineering qualification (e.g., apprenticeship, NVQ Level 3, ONC/HNC, or equivalent in Mechanical or Electrical Engineering).
  • Good knowledge of mechanical and/or electrical maintenance in a food or process-driven industry.
  • Ability to solve problems, prioritise, and make effective decisions in a fast-paced environment.
  • Strong communication and leadership skills, with the ability to coach and develop a team.
  • Experience with CMMS or EAM systems (SAP preferred).
  • Knowledge of continuous improvement methodologies such as Lean, TPM, or Reliability-Centred Maintenance.

What will be your key responsibilities?

  • Lead and support your team of 12 Associates through coaching, 1:1s, and clear development plans.
  • Coordinate maintenance activities to ensure equipment reliability and maximum uptime.
  • Drive a proactive maintenance culture, delivering safe and efficient planned and reactive tasks.
  • Partner with production teams to minimise downtime and support continuous improvement.

What can you expect from Mars?

  • Work with diverse and talented Associates, all guided by the Five Principles.
  • Join a purpose-driven company, where we’re striving to build the world we want tomorrow, today.
  • Best-in-class learning and development support from day one, including access to our in-house Mars University.
  • An industry-competitive salary and benefits package, including company bonus.
  • Access Rover, Mars UK’s new hub for Rewards, Offers, Vouchers, and Recognition, featuring cashback, exclusive deals, shopping discounts, and a recognition wall to celebrate colleagues' achievements.

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Company benefits

Open to part-time employees
Open to job sharing
Open to compressed hours
Sabbaticals
Enhanced maternity leave – 26 weeks at 90% pay
Enhanced paternity leave – 26 weeks at 90% pay
24 days annual leave + bank holidays
“Pawternity” leave
Pregnancy loss leave
Bank holiday swaps
Shared parental leave
Adoption leave
Family health insurance
Pregnancy support
Neo-natal leave
Faith rooms
Meditation space
Dog friendly office
Dog friendly co-working space
Annual bonus
Employee discounts
Cinema discounts
Referral bonus
Joining bonus
Cycle to work scheme
Electric Car Salary Sacrifice
Enhanced pension match/contribution
Theme park discounts
Lunch and learns
In house training
LinkedIn learning license
Studying sabbaticals
Open to part time work for some roles

Working at Mars UK

Company employees

4,000 In the UK

Gender diversity (male:female)

57:43

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