Operational Technology Maintenance Engineer

Powered by Water, Driven by Purpose
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.
Operational Technology Maintenance Engineer
📍 Redruth (Tolgus Depot) | 🕒 Full-time, Permanent
Powered by Water. Driven by Purpose.
We’re now looking for an Operational Technology Maintenance Engineer to join our team in Redruth.
Offering a competitive salary of £42,451, with additional earning potential through a standard standby pay profile.
About the Role
You’ll maintain and repair critical operational technology, instrumentation and process control systems, supporting the safe and efficient delivery of essential services.
Key responsibilities include:
Planned and proactive maintenance of OT, instrumentation and control systems
Fault finding, diagnosis and resolution of complex issues
Participation in a 24/7 standby rota
Working closely with mechanical and electrical teams
Supporting root cause analysis and system improvements
Software, firmware and security patching in line with ICS and UK NIS standards
About You
GCSEs including Maths, English and Science (or equivalent)
Relevant industrial control apprenticeship, training or qualification
Experience in process control and ELV/LV systems (Level 3 minimum)
Strong IT and technical skills
Full UK driving licence
Able to pass DBS and UK Government Security Clearance (SC)
Ready to make a difference? Join us as our Operational Technology Maintenance Engineer and help create a workplace where people thrive.
We believe in rewarding our people for their hard work and dedication. As our Operational Technology Maintenance Engineer, you'll enjoy:
Competitive Salary – Based on experience and skills
Annual Bonus Scheme – Recognising company performance
Pension Scheme – Helping you plan for your future
Healthcare Benefits – Access to employee assistance programs
Employee Discounts – On various products and services
Annual Leave – Take time to recharge with our holiday entitlement
Closing Date:19th May 2026
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.
Our core values, which are essential to our success, are:
Be Rock Solid - Build trust and be trusted. Be the one we all look to and can depend on.
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.

- Division
- South West Water
- Locations
- Redruth
- Yearly salary
- £42,451
- Employment type
- Full-time
About South West Water
We look after the water and wastewater services for 1.8 million customers across Cornwall, Devon, the Isles of Scilly and parts of Dorset and Somerset.
From treatment and maintenance, to innovation and improvements, we're busy every day finding and fixing leaks, unblocking sewers and going bigger and further in our environmental work to be a company you can be proud of.