Instrumentation Field Service Engineer

United Utilities; Carlisle; On-site; GBP 39,000; Full time

Job summary

A leading water management company is seeking an Instrumentation Field Service Engineer to ensure smooth operations at the Carlisle Wastewater Treatment Works. The ideal candidate will have experience in electrical maintenance, a full UK driving license, and strong diagnostic skills. Responsibilities include delivering high-quality maintenance services and ensuring compliance with safety regulations. This permanent position offers a competitive salary of £38,462, with benefits including generous leave and pension schemes.

Benefits

26 days annual leave, increasing to 30

Competitive pension scheme

Up to 7.5% performance-related bonus

Comprehensive healthcare plan

Gym and wellness benefits

Employee Assistance Plan

Qualifications

• You must be a time served apprentice or equivalent, supported with academic qualification(s).
• Full UK driving license is essential due to the mobile nature of the role.
• Proven experience in an electrical maintenance or engineering role, ideally in a field-based or utilities environment.
• Strong diagnostic and problem-solving skills across electrical systems, controls, and instrumentation.
• Familiarity with maintaining, calibrating and servicing equipment in water or wastewater industries.
• Solid understanding of safe systems of work, risk assessments, and permit-to-work systems.
• Comfortable working independently while maintaining strong communication with teams.

Responsibilities

• Deliver high-quality, efficient instrumentation maintenance and installation service.
• Diagnose and fix faults, ensuring all systems-based equipment operate correctly.
• Conduct planned tasks to prevent maintenance issues.
• Ensure compliance with Health & Safety regulations and internal policies.
• Manage budgets effectively and maintain financial control.
• Provide accurate asset performance data for corporate systems.
• Analyze root causes of recurring issues and recommend solutions.

Skills

Fault-finding expertise

Team player

Health & Safety awareness

Electrical maintenance experience

Problem-solving skills

Education

Time served apprentice or equivalent

Tools

Electrical and instrumentation tools

Job description

Job number UU04423 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

From Sensors to Systems-Engineering Reliability

The Role

Are you ready to take on a hands‑on role where no two days are the same? As an Instrumentation Field Service Engineer, you’ll play a key part in keeping our assets running smoothly by delivering expert maintenance and technical support to our Production team.

Working in a fast‑paced, modern maintenance environment, you’ll be at the forefront of proactive, planned, and reactive support—making a real impact every day. Your expertise will help ensure we stay compliant with all company, statutory, and regulatory standards, all while helping to protect the environment.

But that’s not all—you’ll also have the chance to shape the future of our operations by contributing to capital and operational projects, ensuring our assets are built with maintenance and performance in mind from day one.

This role offers a great mix of independence and teamwork. You’ll need to be comfortable working solo at times, but you’ll also collaborate closely with a supportive team when needed.

Please note:

• This role involves working in confined spaces.
• You’ll also take part in an out-of-hours standby rota, so flexibility is key.

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

• Delivering a high‑quality, efficient instrumentation maintenance and installation service that keeps everything running like clockwork.
• Diagnosing and fixing faults with precision—making sure all instrumentation and systems‑based equipment are operating at their best.
• Taking a proactive approach to maintenance, carrying out planned tasks to prevent issues before they arise.
• Championing safety by ensuring full compliance with Health & Safety regulations and internal policies.
• Keeping a close eye on the numbers by managing budgets effectively and maintaining financial control.
• Providing accurate, reliable asset performance and repair data to feed into our corporate systems—your insights will help drive smarter decisions.
• Tackling recurring maintenance issues head‑on by analysing root causes and recommending long‑term solutions.

Essential Skills & Experience

• Qualifications– you must be a time served apprentice or equivalent, supported with academic qualification(s).
• Full UK driving licenseis essential due to the mobile nature of the role.
• Field service experience– Proven experience in an electrical maintenance or engineering role, ideally in a field‑based or utilities environment.
• Fault‑finding expertise– Strong diagnostic and problem‑solving skills across electrical systems, controls, and instrumentation.
• Knowledge of flow, level & measurable instruments– Familiarity with maintaining, calibrating and servicing equipment particularly in water, wastewater, or similar process industries.
• Health & Safety awareness– Solid understanding of safe systems of work, risk assessments, and permit‑to‑work systems.
• Team player– Comfortable working independently while maintaining strong communication and collaboration with on‑site teams and contractors.

This role may not be eligible for visa sponsorship.

Benefits

• 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
• MORE Choices flexible benefits
• Enhanced parental leave schemes

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.

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.