What you’ll be doing
as a Systems Engineer – OT Regional SCADA Support
1. Maintain and support the continuous operation of Regional SCADA systems to achieve 99.2%+ availability across Thames Water’s operational estate.
2. Perform routine maintenance, system checks, updates, patches, and enhancements to ensure SCADA reliability, resilience, and compliance with standards.
3. Provide rapid response to system faults, alarms, and failures, diagnosing issues efficiently to minimise downtime and restore operational performance.
4. Support and maintain the RTU estate, ensuring consistent application of configuration standards and reducing operational risk through proactive issue identification.
5. Participate in the in-hours and out-of-hours SCADA emergency support rota to ensure 24/7 service continuity for operational control teams.
6. Deliver responsive and effective support for SCADA-related incidents, service requests, access requests, and data queries in line with service expectations.
7. Review and assess proposed SCADA system changes to ensure compliance with standards, mitigate risks, and support safe implementation within live operational environments.
8. Provide subject matter expertise on Regional SCADA systems, collaborating with OT Technical, delivery, and integration teams to maintain high technical standards.
9. Support project delivery by ensuring SCADA integrations align with operational requirements, governance, and risk management controls.
10. Contribute to continuous improvement initiatives, enhancing system performance, team capability, documentation, processes, and knowledge sharing.
11. Mentor colleagues, share technical expertise, and participate in capability-building activities to strengthen the OT Regional SCADA team.
Base Location: Multisite, Thames Valley & London areas
Working Pattern: 36 Hours
What you should bring to the role
Essential Experience
12. Experience maintaining, supporting, or delivering SCADA or Industrial Control & Automation (ICA) systems.
13. Proven ability to build effective working relationships across technical, operational, and management teams.
14. Strong communication and customer service skills, ensuring clear and timely support for both technical and non-technical audiences.
15. Excellent analytical and problem-solving skills with the ability to assess complex issues and balance operational, technical, and business needs.
16. Experience working within or familiar with change management, risk assessment, and governance processes in safety-critical or regulated environments.
Essential Technical Skills & Qualifications
17. Recognised technical qualification in OT, ICA, SCADA, or a related discipline.
18. Expertise in Regional SCADA systems and RTU technologies, including configuration, diagnostics, maintenance, and performance optimisation.
19. Proficiency with common IT tools (e.g., Microsoft Office) for documentation, reporting, and analysis.
20. Practical experience supporting Schneider Electric Geo SCADA (formerly ClearSCADA) or similar SCADA platforms in operational environments.
Desirable Experience
21. Experience working within regulated utilities or critical infrastructure sectors such as water, energy, or transport.
22. Working knowledge of OT cybersecurity standards, frameworks, and controls relevant to SCADA environments.
23. Ability to manage competing priorities and balance operational and project demands in fast-paced environments.
Desirable Technical Skills & Qualifications
24. Strong understanding of industrial communication protocols such as WITS-DNP3, Modbus, or similar telemetry/networking technologies.
What’s in it for you?
25. Competitive salary up to £66,000 per annum, depending on experience.
26. £4,500 Car Allowance.
27. Annual Leave - 26 days holiday per year, increasing to 30 with the length of service (plus bank holidays)
28. Performance-related pay plan directly linked to both company and individual performance measures and targets.
29. Generous Pension Scheme through AON.
30. 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.