Mechanical Field Service Engineer

Job Description

Whether you’re a skilled mechanical engineer or looking to broaden your expertise into a multi‑skilled role, this is an opportunity to do meaningful work while developing your career.

We’re looking for a hands‑on Mechanical Field Service Engineer to join our team at Preston. You’ll work in a modern, fast‑paced maintenance environment, helping to keep critical Wastewater assets operating safely, efficiently, and in full regulatory compliance.

The role starts with a core mechanical focus, with clear scope to develop additional skills through structured on‑the‑job training and support. If you already bring secondary skills, we’ll value and build on them.

What you’ll be doing

• Deliver planned and reactive mechanical maintenance across Wastewater assets.
• Diagnose faults, carry out effective repairs, and return equipment safely to service.
• Maintain and improve asset reliability through proactive maintenance and root‑cause analysis.
• Ensure all work complies with Health & Safety legislation, environmental standards, and company policies.
• Accurately record asset performance, defects, and repair data within corporate systems.
• Contribute to continuous improvement initiatives and support capital and operational projects.
• Manage maintenance activities within agreed budgets where applicable.
• Work independently when required, while remaining an active and collaborative team member.
• Take part in the on‑call standby rota and work in confined spaces when necessary.

What we’re looking for

• A full UK driving licence (a fully equipped company vehicle is provided for travel between sites).
• Time‑served apprenticeship or NVQ Level 3 (or equivalent) in a mechanical discipline.
• Relevant industry experience within mechanical maintenance, engineering, or industrial environments.
• Strong fault‑finding, planning, and organisational skills.
• Hands‑on experience with mechanical assets such as pumps, gearboxes, valves, and rotating machinery.
• A willingness to develop additional skills and support a multi‑skilled maintenance approach.

What you’ll get in return

• A secure role supporting essential Wastewater infrastructure.
• Structured training and development, with opportunities to become multi‑skilled.
• Company vehicle, tools, and technology to do your job safely and efficiently.
• A supportive team culture with clear expectations and professional standards.
• A competitive pay and benefits package, including standby/overtime arrangements and pension.

Salary - £40,232
Work Type - Onsite
Job Location - Preston Wastewater Treatment Works, Clifton Marsh, Lytham Road, Freckleton, Preston, PR4 0XE
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.

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.