Instrument Maintenance Technician

As an OT Maintenance Technician, you'll play a vital role in maintaining and calibrating the instrumentation and monitoring systems that support our water and wastewater operations.

Working across a range of sites, you'll be responsible for planned maintenance, fault finding and reactive repairs, ensuring critical operational technology systems continue to perform effectively and reliably. You'll work with a variety of technologies including telemetry, process control systems, PLCs, instrumentation and regulatory monitoring equipment.

This role offers excellent opportunities to further develop your technical expertise, gain additional qualifications and build a long-term career within a supportive and highly skilled operational team.

• Cycle to work scheme.

We may close this vacancy early if we receive a high volume of applications. We encourage you to apply as soon as possible.

Please note that the successful candidate will be subject to a mandatory DBS check as part of the onboarding process.

Be yourself, we like it that way. Together, we will build a culture of belonging, where inclusion is instinctive. Diversity is our strength and a reflection of our communities. We care, we value everyone, we celebrate uniqueness.

South West Water keeps the South West flowing with safe, reliable drinking water and wastewater services across some of the UK's most stunning landscapes.

We're proud to be part of Pennon Group, a leader in the UK water sector, working towards a greener future. Our goals? As well as lowering our carbon footprint, we're working with partners to plant 300,000 trees, restore peatlands and supporting farmers and landowners to improve water quality and wildlife.

Whether you're starting out or seeking a new challenge, our scale and ambition create opportunities for you to shape your own career.

Ready to make a splash? Join our team today.

• Carrying out planned and reactive maintenance on instrumentation, telemetry and regulatory monitoring equipment.

• Diagnosing faults and implementing effective solutions to minimise operational disruption.

• Calibrating process sensors and analytical instrumentation to ensure regulatory compliance.

• Supporting improvements to systems, processes and asset performance.

• Working collaboratively with OT, ICA, electrical and mechanical teams.

• Contributing to root-cause investigations and implementing corrective actions.

• Supporting compliance with technical standards, governance requirements and cyber security obligations.

• Promoting safe working practices and contributing to risk assessments and safe systems of work.

• Maintaining accurate records and supporting IT/OT documentation and governance activities.

You'll be a proactive and adaptable technical professional with strong fault-finding skills and a passion for operational technology.

This is a fantastic opportunity to work with a diverse range of technologies in an organisation investing heavily in its operational infrastructure and people.

In return, we offer:

• Competitive salary of £37,441 - £41,601.

• Generous holiday allowance with the ability to buy and sell annual leave for added flexibility.

• Competitive company pension scheme.

• Training and development within the role.

• Access to thousands of discounts and vouchers through Pennon Perks.

• 24/7 support with our Employee Assistance Programme.

• Discretionary bonus.

• And more!

Closing Date: 9th November 2026

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Be You - We want you to bring your best everyday. Be yourself and make your mark in your individual way.

Be the Future - Embrace change. Drive Progress. Own the challenge.