Commissioning Engineer Sewage Treatment Plant (STP)

About the Role

WSP in the Middle East is seeking a Commissioning Engineer for a Sewage Treatment Plant (STP) to join their team in Riyadh. This full-time role involves planning, executing, and overseeing the commissioning of STP and TSE pipeline systems. The primary objective is to ensure that all systems operate safely, efficiently, and in full compliance with design specifications, contractual requirements, and regulatory standards.

Role Overview

The Commissioning Engineer will lead pre-commissioning and commissioning activities, including inspections, testing, start-up, performance trials, and final handover of the STP. This includes ensuring that treatment processes consistently achieve the required effluent quality and that full operational readiness is established before final acceptance. The role requires close coordination with design, construction, mechanical, electrical, and instrumentation teams, as well as effective engagement with project stakeholders.

Key Responsibilities

• Plan and manage pre-commissioning, commissioning, and start-up activities for STP systems and TSE pipeline.
• Supervise the EPC Contractor’s team during the process commissioning of the complete sewage treatment plant.
• Oversee and verify installation completion and readiness of civil, mechanical, electrical, and I&C systems.
• Coordinate testing of equipment such as pumps, blowers, screens, clarifiers, biological reactors (Nereda), filters, disinfection systems, sludge systems, odour control systems, and TSE pipeline.
• Lead process commissioning, including biological (Nereda based) seeding, stabilization, and optimization.
• Monitor plant performance to ensure treated effluent meets statutory and contract requirements.
• Review commissioning procedures, method statements, and test protocols.
• Troubleshoot operational and process issues during start-up and trial runs.
• Coordinate with the EPC Contractor and OEMs for equipment commissioning and performance testing.
• Oversee compliance with HSE requirements during commissioning activities.
• Prepare/Review and submit commissioning reports, performance test results, and handover documentation.
• Support training of the client’s operations and maintenance (O&M) staff.
• Assist in final acceptance, defect liability support, and transition to the O&M phase.
• Collaborate with project stakeholders and share progress reports regularly.
• Ensure the timely completion of commissioning milestones within the allocated budget.

Team Leadership and Quality Assurance

• Supervise the EPC Contractor’s site team during commissioning, offering guidance, training, and mentorship.
• Participate in site meetings and other project-related meetings as required.
• Cultivate a culture of safety and professionalism within the team.
• Establish and maintain robust quality control procedures for commissioning work.
• Ensure adherence to Project Quality standards during the commissioning phase.

Safety and Compliance

• Ensure that commissioning activities are executed in a safe and efficient manner.
• Ensure adherence to safety regulations and compliance during testing and commissioning.
• Investigate and report any safety incidents or near misses.

Qualifications and Experience

Candidates should possess a minimum of 10 years of experience in commissioning roles, preferably within sewage treatment plant projects. The ability to manage project milestones within budget and provide regular progress updates to stakeholders is essential.