OT SCADA Engineer

Salary: £40,000 - 40,000 per year

Requirements

• We require experience working in operational or industrial technology environments within a medium to large organisation.
• We require demonstrable experience across multiple OT disciplines, including SCADA system configuration and support, PLC diagnostics and code modification, telemetry and RTU configuration, and industrial communications and OT networking.
• We require experience providing reactive support in live operational environments.
• We require experience contributing to OT project delivery, including documentation, testing, commissioning and handover.
• We require experience applying technical standards, change governance and cyber-security principles in regulated or critical operational environments.
• We require practical understanding of clean water and wastewater treatment processes sufficient to support monitoring, control and fault resolution.
• We require a minimum of 5 GCSEs or equivalent, including Mathematics, English and a Science subject.
• We require a full UK driving licence.
• We require the ability to successfully obtain UK Government Security Clearance (SC).
• Desirable: industrial control or automation apprenticeship, or equivalent industry experience.
• Desirable: project management qualification such as PRINCE2.
• Desirable: degree or equivalent qualification in a relevant discipline.
• Desirable: vendor-specific or specialist training in SCADA, PLCs, telemetry, networking or cyber security.
• Desirable: relevant industrial control, automation or engineering qualification such as ONC/HNC or equivalent.
• Desirable: relevant SCADA, PLC or industrial automation training.

Responsibilities

• We design, configure, commission and support SCADA systems, including alarms, data handling, trending, archiving and visualisation across both new and legacy platforms.
• We integrate PLCs, RTUs and field instrumentation with SCADA systems using standard industrial protocols such as Modbus, OPC and Ethernet/IP.
• We configure, commission and support telemetry and point-to-point communications, including radio, cellular and satellite solutions for remote and unmanned sites.
• We deliver high-quality HMI configuration and commissioning, ensuring consistency with standards and effective operator interaction.
• We design, configure and support OT network infrastructure, including Ethernet, serial and fieldbus, and undertake fault diagnostics using industry-recognised tools.
• We support SCADA platform and server infrastructure across Windows and Linux environments, including system build, configuration, hardening and lifecycle support.
• We deliver OT projects in line with scope, timescales, budgets and change governance.
• We provide reactive operational support, including fault diagnosis, root cause analysis and follow-up actions.
• We apply OT technical standards, cyber-security controls and health & safety requirements consistently, contributing to continuous improvement and best practice.
• We design, develop and commission PLC software for new assets, and provide expert fault-finding support to frontline operational teams.

Technologies

• Ethernet
• Support
• Linux
• Network
• PLC
• Security
• Windows
• Hardware

More

We are Bristol Water, part of Pennon Group, and we have been serving generations of families since 1846. We provide healthy water to our communities and work around the clock to test our water hundreds of times a day. We are focused on building a greener future by lowering our carbon footprint, planting 300,000 trees with partners, restoring peatlands and supporting farmers and landowners to improve water quality and wildlife. We offer a competitive salary based on experience and skills, an annual bonus scheme, pension scheme, flexible working options including hybrid working where possible, healthcare benefits, employee discounts and annual leave. We are committed to inclusion and belonging, and our values are to Be Rock Solid, Be You and Be the Future. The role is an OT SCADA Engineer position with Bristol Water, and the successful candidate will be subject to a mandatory DBS check and may close early if application volume is high.

last updated 27 week of 2026