Instrumentation Field Service Engineer

Job number UU06231 Country United Kingdom Region Lancashire Location name Preston Wastewater Treatment Works, Clifton Marsh, Lytham Road, Freckleton, Preston, PR4 0XE
Posting End Date 02/09/2026 Band 6a Role Type Permanent Work hours 37 Hours per Week Salary £40,232

Are you ready for a hands‑on role where no two days are the same? Joining us as an Instrumentation Field Service Engineer, you’ll play a crucial part in keeping our sites running smoothly by delivering expert maintenance and technical support across our operations.

Working in a fast‑paced and modern maintenance environment, you’ll be right at the centre of proactive, planned, and reactive support—making a real impact every single day. You’ll help us stay compliant with company, statutory and regulatory standards, all while supporting the protection of our environment.

You’ll also shape the future of our assets by contributing to key capital and operational projects, ensuring what we build today performs reliably tomorrow.

This role offers the perfect balance of independence and teamwork—sometimes you’ll be out working alone, other times you’ll collaborate closely with a supportive, skilled team.

A note about skills and development

You’ll join us as an Instrumentation Engineer (single skill) from day one.
But don’t worry—if your goal is to develop into a flexi‑skilled engineer, we’ll fully support you.

Please note

• This role involves working in confined spaces
• You’ll take part in an out‑of‑hours standby rota, so flexibility is essential

• Deliver high-quality, efficient instrumentation maintenance and installation work to keep assets operating at their best
• Diagnose and resolve faults with accuracy across instrumentation and systems‑based equipment
• Carry out proactive and planned maintenance activities to prevent issues before they happen
• Ensure full compliance with Health & Safety regulations and internal procedures
• Maintain effective budget and cost control
• Provide clear, accurate asset performance and repair data to feed into our corporate systems
• Analyse recurring issues and recommend long‑term solutions.

This role may not be eligible for sponsorship

• A recognised, time‑served apprenticeship (or equivalent) supported by relevant academic qualifications
• Full UK driving licence (mobile field‑based role)
• Proven experience in an instrumentation, electrical maintenance, or engineering role—ideally in a field‑based or utilities/process environment
• Strong diagnostic and fault‑finding capability across instrumentation, controls and electrical systems
• Understanding of flow, level, pressure or other measurable instrumentation—particularly within water, wastewater or similar process industries
• Solid working knowledge of safe systems of work, risk assessments and permit‑to‑work processes
• A team player—comfortable working independently but always maintaining strong communication with colleagues and on‑site teams.

• 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
• My Gym Discounts  - 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
• Share Buy
• Enhanced parental leave schemes

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…