Operational Technology Maintenance Engineer

About the role

The Operational Technology Maintenance Engineer will maintain and repair remote instrumentation, control and automation systems for South West Water. You will support safe, reliable water and wastewater services through planned maintenance and rapid response to operational issues.

Key responsibilities

• Deliver planned and proactive maintenance on instrumentation, control and automation systems.
• Diagnose and resolve complex faults through onsite analysis.
• Respond to operational issues within required timeframes and participate in a 24/7 standby rota.
• Collaborate with mechanical and electrical teams to prioritise and coordinate work.
• Support root‑cause analysis of plant failures and drive corrective actions.
• Maintain and improve Industrial Control System (ICS) standards.
• Carry out firmware/software updates, patching and system roll‑outs in line with best practice.

Required profile

• Minimum of 5 GCSEs (Grade C/4 or above) including Maths, English and Science or equivalent.
• Completed ICA/Electrical/Electrotechnical apprenticeship with relevant qualifications (City & Guilds, BTEC, ONC/HNC/HND).
• Hands‑on experience with industrial instrumentation and automation systems.
• Experience with PLC platforms such as Schneider or Rockwell.
• Full UK driving licence and willingness to travel within the region.

Required skills

• Industrial instrumentation
• Automation systems
• PLC platforms (Schneider, Rockwell)
• Electrical fault‑finding
• Firmware and software update procedures
• IT skills for technical troubleshooting

What we offer

• Competitive salary £42,451 – £50,941 per year, based on experience.
• Standard standby payment scheme and 24/7 rota support.
• Opportunities to develop expertise in OT and industrial control standards.
• Being part of a purpose‑driven water utility focused on sustainability.