Mechanical Field Service Engineer

United Utilities; Carlisle; On-site; GBP 38,000 - GBP 45,000; Full time

Job summary

A leading utilities company is seeking a Mechanical Field Service Engineer in Carlisle. The role involves working on pumps, mixers, and valves, ensuring operational efficiency in confined spaces. Candidates should have an NVQ level 3 or equivalent, along with a full UK driving license. The position offers a salary starting at £38,462 with numerous benefits, including training support for career development. Join a diverse team committed to sustainability and community impact.

Benefits

26 days annual leave

Pension scheme with up to 14% employer contribution

Performance-related bonus scheme

Comprehensive healthcare plan

Gym discounts

Employee Assistance Plan

Qualifications

• Must be a time-served apprentice or equivalent.
• Full UK driving licence required.
• Ability to work in a team as well as independently.
• Willingness to work in confined spaces.

Responsibilities

• Implement efficient mechanical maintenance and installation service.
• Analyze faults and ensure correct operation of systems-based equipment.
• Perform preventive and predictive maintenance activities.
• Ensure compliance with Health & Safety regulations.

Skills

Mechanical expertise

Diagnostic skills

Organisational skills

Communication skills

Education

Minimum of NVQ level 3

Job description

Job number UU04410 Country United Kingdom Region Cumbria Location name Carlisle Wastewater Treatment Works, Willowholme Ind Estate, Carlisle, Cumbria, CA2 5SH Posting End Date 31/03/2026 Band 6a Role Type Permanent Work hours 37 Hours per Week Salary £38,462

The Role

Are you ready to put your mechanical expertise to work where it truly makes a difference? We’re looking for Field Service Engineers who can help us drive efficiency and reduce costs across our operations. In this role, you’ll take on hands‑on tasks such as like‑for‑like replacements of pumps, mixers, valves, flow meters, pipework, and electrical actuators, as well as tank repairs and asset decommissioning.

This is a hands‑on, multi‑skilled role that demands flexibility, the ability to work independently, and readiness to operate in confined spaces. You’ll also contribute to both capital and operational projects, ensuring mechanical assets are designed, installed, and maintained to meet performance and reliability standards. Participation in an out‑of‑hours standby rota is part of the role.

Here’s how we reward your skillset:

If you’re bringing one core skill to us (Electrical/Mechanical/Instrumentation) you’ll start on a salary of £38,462, but if you’ve got both disciplines, you’ll earn £44,320.

One core skill‑don’t go anywhere…we will support with the training. Our dedicated team of training professionals will provide you a tailored development plan to help you build your skillset and get you seen.

Role Accountabilities

• To implement an efficient Mechanical maintenance and installation service.
• To analyse faults, rectify and ensure correct operation of Mechanical systems‑based equipment.
• Perform preventative and predictive maintenance activities.
• To ensure compliance with all Health & Safety regulations and internal company policies.
• To maintain required financial control of a pre‑defined budget.
• To provide reliable, accurate and complete asset performance and repair information for entry into corporate systems.
• To analyse and recommend solutions to recurring maintenance problems.

To be considered for a role as a Mechanical Field Service Engineer:

• You must be a time served apprentice or equivalent, supported with academic qualifications to a minimum of NVQ level 3.
• A full UK driving licence is required for the role
• Industry experience.
• The ability to work in a team but also alone, and sometimes in confined spaces.
• Able and willing to diversify into specialised areas of maintenance, as required, such as chlorine gas systems.
• Diagnostic, organisational, planning, communication and computer skills

About Us

Salary - £38,462
Work Type - Onsite
Job Location - Carlisle Wastewater Treatment Works, Willowholme Ind Estate, Carlisle, Cumbria, CA2 5SH
Role Type - Permanent
Employment Type - Full Time
Working Hours - 37.0 Hours per Week

United Utilities’ (UU) purpose is to deliver great water for a stronger, greener and healthier North West of England. We are committed to providing our services in a way that respects the environment, supports the economy, and benefits society.

We value diversity, inclusion and innovation in our workplace, and we foster a culture where our people can grow, excel, and be themselves.

We uphold our ethics, values and business model to fulfil our mission and, by setting clear goals and objectives, we create sustainable long‑term value for our colleagues, customers and communities. Whether you work with a team that shares your vision or join a network of peers with similar interests, you will find a welcoming and supportive organisation to be part of.

We’ve got a lot to offer. You’ll be part of a thriving FTSE 100 company and will enjoy a range of core benefits that reflect your value and value contribution.

• A generous annual leave package of 26 days, which increases to 30 days after four years of service (increases one day per year), in addition to 8 bank holidays
• A competitive pension scheme with up to 14% employer contribution, 21% combined, and life cover
• Up to 7.5% performance‑related bonus scheme, as well as recognition awards for outstanding achievements
• A comprehensive healthcare plan through our company‑funded scheme
• MyGymDiscounts – gym and wellness benefit that offers up to 25% off on gym memberships and digital fitness subscriptions
• Best Doctors
• Salary Finance
• Wealth at Work courses
• Deals and discounts
• EVolve Car Scheme
• Employee Assistance Plan
• Mental health first aiders
• ShareBuy
• Enhanced parental leave schemes

We rely on every employee to ensure our customers receive the best possible service, day in, day out. In return, we ensure that you will be well rewarded for your efforts, from an excellent salary through to development opportunities that will really kick start a thriving career here at UU.

We rely on every employee to ensure our customers receive the best possible service, day in, day out. In return, we ensure that you will be well rewarded for your efforts, from an excellent salary through to development opportunities that will really kick start a thriving career here at UU.