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Thames Water; Guildford; Hybrid; GBP 56,000 - 68,000; Full time

Benefits offered by this job

Hybrid working

Salary up to £62,000 per year

Car allowance £4,500

26 days holiday per year

Pension scheme

Health & wellbeing benefits

Job summary

Thames Water is seeking a Waste Site SCADA Systems Engineer to join their Operational Technology team in Guildford. You will support and improve the SCADA/OT stack across multiple sites, driving reliability and security while contributing to major transformation programmes.

The role offers hybrid working, a competitive salary, and a clear path to specialist OT and industrial cybersecurity expertise within one of the UK’s largest water and wastewater organisations.

Qualifications

• Experience in SCADA, PLC and industrial automation environments.
• Ability to troubleshoot faults in SCADA systems, HMIs, PLCs and networks.
• Knowledge of OT cybersecurity and risk management is a plus.

Responsibilities

• Support and maintain critical SCADA platforms including AVEVA System Platform/Wonderware, FactoryTalk View and Iconics.
• Ensure high system availability, resilience and security across sites.
• Deliver upgrades and patches to keep systems secure and reliable; support disaster recovery.

Skills

SCADA

PLC

Industrial automation

OT networking

Troubleshooting

Tools

AVEVA System Platform/Wonderware

FactoryTalk View

Iconics

Allen-Bradley PLCs

Job description

Waste Site SCADA Systems Engineer

Company: Thames Water

Salary: £62,000 to £62,000 a year

Hours: Full-time

Location: Guildford, GU1 1RU

Job type: Permanent

Posting date: 5 Sept 2026

Closing date: 18 Sept 2026

Summary

Every day, more than 16 million customers rely on Thames Water's operational technology systems to safely collect, treat and transport wastewater. Behind those systems is a complex network of SCADA, automation, control and communications infrastructure that operates 24/7 across hundreds of operational sites.

We're looking for a talented SCADA Engineer to join our Operational Technology team and help drive the reliability, resilience and evolution of one of the UK's largest industrial control system environments. You'll play a key role in supporting and improving the technology that enables our frontline teams to operate critical wastewater services while helping us reduce pollution, improve environmental outcomes and deliver better performance for our customers.

This is far more than a traditional support role. You'll have the opportunity to influence technical standards, support major transformation programmes and work on technologies that sit at the heart of Thames Water's operational future.

What you'll be doing

• Support and maintain critical SCADA platforms including AVEVA System Platform/Wonderware, FactoryTalk View and Iconics.
• Ensure high levels of system availability, resilience and security across operational sites.
• Troubleshoot and resolve faults involving SCADA systems, HMIs, PLCs and communications infrastructure.
• Deliver upgrades, patches and improvements that keep systems secure and reliable.
• Support disaster recovery planning and business continuity arrangements.
• Work closely with operations teams to understand challenges and identify opportunities for improvement.
• Provide technical input into capital delivery and OT improvement projects.
• Champion OT change management, risk management and cybersecurity best practice.
• Act as a subject matter expert, sharing knowledge and mentoring colleagues across the wider OT community.

Why join Thames Water?

• Exposure to large-scale SCADA, automation and OT environments.
• Involvement in major infrastructure and digital transformation programmes.
• Opportunities to develop specialist expertise in Operational Technology and industrial cybersecurity.
• Hybrid working that supports work-life balance.
• A collaborative team environment where innovation and continuous improvement are encouraged.
• The chance to make a real difference to environmental performance and customer outcomes

Base location: Hybrid – Guilford

Working pattern: 36 hours Monday to Friday, with participation in an on-call rota

What we’re looking for

We're interested in talented engineers who are passionate about Operational Technology and enjoy solving complex technical challenges.

You’ll ideally have experience in

• SCADA, PLC, ICA or industrial automation environments.
• AVEVA System Platform/Wonderware, FactoryTalk View, Iconics or similar technologies.
• Allen-Bradley PLC systems.
• Industrial communications and OT networking.
• Troubleshooting critical operational systems.
• Working with operational stakeholders and translating technical issues into practical solutions.

You’ll stand out if you also have

• Experience within water, utilities, manufacturing, energy or other process industries.
• Experience supporting industrial control system projects or major system upgrades.
• Understanding of network design, redundancy and resilience technologies.

What’s in it for you?

• Competitive salary: Competitive salary up to £62,000 per annum.
• Car Allowance: £4,500.
• Annual Leave: 26 days holiday per year, increasing to 30 with the length of service. (plus bank holidays).
• Performance-related pay plan directly linked to company performance measures and targets.
• Generous Pension Scheme through AON.
• Access to lots of benefits to help you take care of you and your family’s health and wellbeing, and your finances – from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance.

Who are we?

We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It’s a big job, and we’ve got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come.

Working at Thames Water

Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you’ll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits. If you’re looking for a sustainable and successful career where you can make a daily difference to millions of people’s lives while helping to protect the world of water for future generations, we’ll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet.

We’re committed to being a great, diverse, and inclusive place to work.

We’re committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that’s extra time, accessible formats, or anything else, just let us know. We’re here to help and support.

Proud member of the Disability Confident employer scheme

About Disability Confident

Disability Confident is a government scheme. It encourages employers to recruit and retain disabled people and those with long term health conditions.