Senior ICA Engineer – Water & Wastewater (Hybrid)

WSP in the UK & Ireland; Glasgow; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Hybrid working policy

Job summary

WSP is seeking Senior and Principal ICA Engineers to shape control system design for water and wastewater projects in the UK. You will own URS and control philosophies from feasibility through commissioning, ensuring alignment with client standards and industry best practices.

You will collaborate with process, mechanical and electrical engineers, supporting bids, site testing and commissioning activities across AMP8 programmes and major schemes.

Qualifications

• Proven experience writing User Requirement Specifications for the water or wastewater sector.
• Proven experience writing control philosophies for process plants such as treatment works or pumping stations.
• Strong ICA design background within the UK water industry.
• Good understanding of PLC, SCADA, telemetry and instrumentation systems.
• Experience reviewing integrator documents and witnessing FAT/SAT.
• Knowledge of DSEAR and CDM regulations.
• Confidence working with clients, operations teams and multidisciplinary colleagues.

Responsibilities

• Lead the writing of User Requirement Specifications for water and wastewater treatment works, pumping stations and network assets.
• Write and review control philosophies that clearly set out operating modes, sequences, interlocks, alarms and fail‑safe behaviour.
• Work with process, mechanical and electrical engineers and client operations teams to capture and challenge requirements.
• Make sure designs follow client automation, telemetry and SCADA standards.
• Prepare and review ICA deliverables, including instrument schedules, I/O lists, datasheets, specifications and control system architecture drawings
• Review system integrator Functional Design Specifications (FDS) against the URS and control philosophy
• Attend factory and site acceptance testing for control panels, PLC/HMI software and SCADA, and support commissioning
• Support tender evaluations, bids and scoping of ICA work packages

Skills

URS writing

Control philosophies

ICA design

PLC & SCADA

Telemetry systems

FAT/SAT experience

Client engagement

Job description

WSP is seeking Senior and Principal ICA Engineers to shape control system design for water and wastewater projects in the UK. You will own URS and control philosophies from feasibility through commissioning, ensuring alignment with client standards and industry best practices.

You will collaborate with process, mechanical and electrical engineers, supporting bids, site testing and commissioning activities across AMP8 programmes and major schemes.