ICA Technician​/Engineer

Closing Date: 27/08/2026

Job Title: Instrumentation, Control and Automation Technician – Waste Water

Location: Fullerton, Peel Common, Chichester, (Hampshire area) - Geographically based within location area (negotiable), with travel to multiple sites.

Contract Type: Permanent

Hours: 38 hours

Salary: Base salary £38,564.10 up to £55,703.70 per annum (depending on skills and experience)

Overtime and on-call payments available.

Join our Wastewater Treatment Team to maintain and improve ICA systems across multiple sites. You will ensure compliance, reliability, and efficiency of control systems while supporting continuous improvement.

We offer a monitored career path and training to get you where you want to be. If you only have some of the skillsets listed below, please still apply and start your learning journey within ICA at Southern Water. If you have more of the skillsets listed, you will automatically be set towards the higher end of the salary scale listed below.

• Planned, Reactive & Proactive maintenance including Fault Finding, Calibration, Testing, Investigation and Programming on such equipment sets as;
  Telemetry Systems, Instrumentation (Flowmeters, Level transmitters, Pressure transducers, Temperature probes, etc…). Analysers (Dissolved Oxygen, MLSS, Turbidity, etc…). MCC & LVA (Low Voltage Assemblies) with PLC Control. Control (Networks, MCC/LVA components, PID controllers). Dosing Equipment. Automation (PLCs, HMIs, SCADA systems). + More!
• Implement complex process improvements and diagnose control system faults on PLC types such as;
  Rockwell, Mitsubishi and a range of package plant PLC’s.
• PLC Software Control via backups and routine verification. Maintaining a change control system when software is requested.
• HMI & SCADA system backups and modifications.
• Setup and maintenance of site control networks (Ethernet, DH+, Profibus, Profinet, RS232, etc..), including managed switch configuration.
• Conduct planned maintenance and/or calibrate instrumentation to Southern Water standards to ensure reliability and accuracy.
• Respond to faults/ alarms as guided by the Regional Control Centre.
• Undertake investigative work on instruments and process issues at wastewater plants, identifying any faults and implementing remedial action.
• Calibration of wastewater equipment to external national standards such as HACCP and MCerts.
• Complete documentation accurately and in a timely manner to maintain internal change control standards.
• Implement system modifications from Operational Team requests to help improve process control or compliance.
• Gather evidence to help with Root Cause Analysis and implement changes as required.
• To coach and train team members to develop their skills.

Travel across multiple sites with a company van provided.

• A company van (for business use only) which you can take home, and a fuel card
• Health Care cash plan cover (with options to upgrade for family coverage)
• Competitive pension

• NVQ3 in Electrical or Electronic Engineering OR a time-served apprenticeship.
• An ONC or HNC in Instrumentation, Electronics, Control or equivalent.
• Excellent problem solving and fault-finding skills.
• Experience with in Instrumentation or Control or Automation.
• Strong documentation skills for regulatory compliance reporting.
• Collaborative, with good communication skills.
• Enthusiasm for learning and growth.
• Full, current UK driving license.

• Enthusiasm for learning and growth.
• Collaborative, with good communication skills.
• Experience with in a process orientated industry such as water utility, petrochemical, electricity, manufacturing or similar.

Southern Water offers monitored career paths, training, and development opportunities.

Southern Water is at the forefront of transforming Britain’s water industry, investing significantly to enhance resilience, sustainability, and service excellence. With £7.8bn planned investment for 2025-30, this is an unparalleled opportunity to join a business committed to delivering a generational shift in the way water services are…