Mechanical Field Service Engineer

United Utilities; Sefton; On-site; GBP 34,000 - 46,000; Full time

Benefits offered by this job

Company vehicle

Tools provided

Overtime / standby payments

Pension scheme

Annual bonus

Job summary

United Utilities is seeking a hands-on Mechanical Field Service Engineer to join the Southport Wastewater Treatment Works. You’ll deliver planned and reactive maintenance on wastewater assets and work in a fast-paced, safety-conscious environment.

The role starts with a core mechanical focus, with structured on-the-job training to develop additional multi‑skill capabilities. A full UK driving licence is required and a company vehicle is provided.

Qualifications

• Time-served apprenticeship or NVQ Level 3 in a mechanical discipline.
• Full UK driving licence is required.
• Experience with mechanical maintenance in industrial environments.

Responsibilities

• Deliver planned and reactive mechanical maintenance across wastewater assets.
• Diagnose faults, perform repairs and return equipment to service safely.
• Improve asset reliability through proactive maintenance and root-cause analysis.
• Ensure compliance with Health & Safety, environmental standards and company policies.
• Record performance and repair data in corporate systems.
• Support capital and operational projects and continuous improvement.
• Manage maintenance activities within budgets where applicable.
• Work independently when needed and collaborate with the team.

Skills

Fault-finding

Planning

Organisational skills

Pumps

Gearboxes

Education

Time-served apprenticeship

Job description

The Role

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 Southport Wastewater Treatment Works. 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.

Why join us?

You’ll be working on critical assets that protect the environment and serve local communities — with real opportunities to grow your skills, increase your technical value, and build a long‑term career in the water industry.

If you’re a capable mechanical engineer who wants responsibility, development, and meaningful work, we’d like to hear from you.

Benefits

Joining United Utilities means joining a business that invests in you. Our benefits include:

Salary

• Competitive salary + standby payments
• Annual bonus scheme
• Company pension scheme with up to 14% employer contribution
• 26 days’ holiday plus bank holidays, rising with service plus you also have the option to purchase holiday.
• Membership discounts, including gym, retail, travel and technology schemes

Health & Wellbeing

• Healthcare plan
• Free mental health support and wellbeing tools
• Life assurance

Career & Development

• Full training and support, including specialist mechanical training
• Opportunities to diversify into specialist areas (e.g., chlorine gas systems)
• A clear development pathway to upskill into a Flexi Skilled Engineer, giving you broader technical capability across multiple disciplines and increasing your future progression opportunities.
• Career progression across engineering, operations and project delivery

About Us

Salary - £40232

Work Type - Onsite

Job Location - Southport Wastewater Treatment Works, Coastal Road, Crossens, Southport, Merseyside, PR9 9YL

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.