Senior Project Manager

Project Engineer (Mechanical) – Infrastructure (Wastewater Sector) Role Overview

The Project Engineer (Mechanical) plays a key role in the delivery of wastewater infrastructure projects including pumping stations, treatment works, mechanical plant installations, and network improvements. This position requires hands‑on mechanical engineering experience within the wastewater sector, with responsibility for coordinating all mechanical engineering activities from pre-contract development through to installation, commissioning, and handover.

You will ensure technical compliance, commercial alignment, high‑quality engineering outcomes, and effective integration with civil, electrical, and ICA disciplines. The role requires strong organisational capability, attention to detail, a collaborative working style, and an ability to maintain progress across multiple work fronts both on and off site.

Hybrid working is available, with travel to sites and the Exeter office when required.

• Provide mechanical engineering input across all project stages—feasibility, outline design, detailed design, procurement, delivery, commissioning, and handover.
• Review and interpret specifications, mechanical design drawings, P&IDs, datasheets, and supplier documentation.
• Vet mechanical procurement packages to ensure technical accuracy, compliance, and value for money.
• Ensure mechanical systems integrate correctly into the wider treatment works and associated infrastructure.
• Oversee the production of mechanical drawings, plant layouts, and prefabrication requirements to ensure coordination and constructability.

• Support the preparation of mechanical technical submissions and coordinate responses to supplier clarifications.
• Work closely with the commercial team to procure all mechanical elements, with particular focus on offsite manufacturing, modularisation, and efficient mechanical assembly strategies.
• Ensure company process documentation and quality management requirements are adhered to during design and procurement phases.

• Support the Site Manager, Site Agent, and General Foreman with all mechanical installation matters.
• Monitor and record labour and material usage for prefabricated and on‑site mechanical works.
• Conduct regular audits of productivity and support the completion of productivity reporting with site management.
• Participate in factory acceptance tests (FAT), site acceptance tests (SAT), quality inspections, and mechanical audits.
• Monitor site progress to ensure mechanical installations meet programme requirements, budgets, and technical expectations.
• Assist in developing commissioning plans and provide mechanical support during system testing and client handover.

• Liaise with civil, electrical, ICA, and process teams to ensure mechanical elements interface correctly.
• Attend and contribute to internal and external design, planning, and progress meetings.
• Conduct monthly project reviews and monthly subcontractor performance reviews alongside site management.
• Represent the company professionally when dealing with clients, suppliers, and stakeholders.

• Ensure adherence to Health, Safety & Environmental systems and contribute to Safe by Design principles.
• Maintain compliance with WIMES, Water Authority standards, BS/EN codes, DWI considerations, and other industry regulations.
• Support CDM compliance, risk assessments, method statements, and quality assurance procedures.
• Maintain accurate project records, including mechanical design changes, installation records, testing logs, and O&M documentation.

• Contribute to a positive, collaborative team environment that supports wellbeing and high performance.
• Support and mentor junior members of the engineering team when required.
• Promote the adoption of Modern Methods of Construction (MMC), lean principles, production thinking, and efficiency improvements across mechanical work packages.

• HNC/HND or Degree in Mechanical Engineering (or…