OT Technician

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.
New opportunity for an Alarm Optimisation OT Technician based in Exeter on an initial 2-year fixed term contract from £33,500 per year plus benefits.
The role
As an OT Technician you will support the delivery of the Alarm Optimisation Project by implementing configuration changes on the Regional SCADA Telemetry System that improve the quality, accuracy, and effectiveness of operational alarms and telemetry signals across sewage pumping stations and sewage treatment works. The changes, submitted by the Project Team will require the reprioritising, labelling, and optimising configured alarms in line with the Alarm Philosophy and EEMUA standards.
Working closely with the Alarm Optimisation Technical Assistants, you will focus on actioning telemetry configuration change requests in support of the Alarm Optimisation Project. Key responsibilities include implementing these changes by adjusting existing telemetry outstation configuration parameters to ensure alarms and events are correctly configured, enabling telemetry data to provide clear, meaningful, and actionable information to support operational decision-making.
What you’ll be doing day to day
Coordinate and maintain a forward schedule of telemetry configuration changes in collaboration with the Alarm Rationalisation Project Team.
Configure new and edit existing telemetry signals, including smart alarms, logic, and sequence charts.
Support the development and use of configuration templates and presets.
Respond promptly to requests, including configuration status and alarm/signal configuration.
Adhere to change and request governance processes and departmental information security policies.
Suggest process improvements and support testing during implementation of new telemetry configuration parameters.
What we’re looking for
Experience in IT or OT technology in medium to large organisations.
Proficient with Microsoft Office, Access, and knowledge of SQL Server.
Strong focus on health, safety, and wellbeing.
Committed to keeping skills, IT governance, and business knowledge up to date.
Positive, flexible, and outcome-driven, with strong customer service focus.
Analytical, detail-oriented, and able to manage changing workloads.
Understands and applies information security policies.
5 GCSEs (including Maths and English at Grade C or above).
Ability to successfully complete UK Government SC clearance
Ideally ITIL Foundation or similar service/change governance training or A-Level or BTEC Level 3 (or equivalent) in Engineering, Electronics, Instrumentation, or related technical discipline.
Closing Date: 19th March 2026
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
- Department
- Digital and Technology
- Locations
- Exeter
About Pennon Group
Founded in 1989, Pennon is a FTSE 250 listed company and one of the leading businesses in the UK water sector.
Serving a population of c.3.5million people and c.380,000 business customers, we're committed to supporting the lives of people and the places they love for generations to come.