Senior Project Manager

Overview

Deliver mechanical engineering for wastewater projects from design to commissioning.

Key Responsibilities

• fat/sat
• design review
• procurement vetting
• drawing production
• site monitoring
• commissioning

Tasks

-Participate in factory acceptance tests (FAT), site acceptance tests (SAT), quality inspections, and mechanical audits. -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. -Oversee the production of mechanical drawings, plant layouts, and prefabrication requirements to ensure coordination and constructability. -Conduct regular audits of productivity and support the completion of productivity reporting with site management. -Provide mechanical engineering input across all project stages—feasibility, outline design, detailed design, procurement, delivery, commissioning, and handover. -Liaise with civil, electrical, ICA, and process teams to ensure mechanical elements interface correctly. -Monitor and record labour and material usage for prefabricated and on-site mechanical works. -Ensure company process documentation and quality management requirements are adhered to during design and procurement phases. -Promote the adoption of Modern Methods of Construction (MMC), lean principles, production thinking, and efficiency improvements across mechanical work packages. -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. -Support the preparation of mechanical technical submissions and coordinate responses to supplier clarifications. -Support the Site Manager, Site Agent, and General Foreman with all mechanical installation matters. -Contribute to a positive, collaborative team environment that supports wellbeing and high performance. -Conduct monthly project reviews and monthly subcontractor performance reviews alongside site management. -Work closely with the commercial team to procure all mechanical elements, with particular focus on offsite manufacturing, modularisation, and efficient mechanical assembly strategies. -Support CDM compliance, risk assessments, method statements, and quality assurance procedures. -Ensure adherence to Health, Safety & Environmental systems and contribute to Safe by Design principles. -Maintain accurate project records, including mechanical design changes, installation records, testing logs, and O&M documentation. -Support and mentor junior members of the engineering team when required. -Maintain compliance with WIMES, Water Authority standards, BS/EN codes, DWI considerations, and other industry regulations. -Ensure mechanical systems integrate correctly into the wider treatment works and associated infrastructure. -Attend and contribute to internal and external design, planning, and progress meetings. -Represent the company professionally when dealing with clients, suppliers, and stakeholders.

Requirements

• cscs
• bim
• sssts
• hnd/degree
• 5 years
• nec

What You Bring

Please note that this role is subject to Baseline Personnel Security Standard (BPSS) clearance which includes identity, employment history, and criminal record checks. Please note we do not have a sponsorship licence. 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. -CSCS card (appropriate level). -Strong understanding of civil, mechanical, and electrical interfaces within wastewater infrastructure. -Commercial awareness with the ability to support quantity surveying and cost management activities. -Understanding of BIM, digital engineering tools, and 3D model coordination. -Ability to adapt communication style to suit clients, colleagues, and subcontractors. -Experience with MMC, lean construction, and modularisation strategies. -SSSTS minimum (SMSTS preferred). -Minimum 5 years’ experience in mechanical engineering within the water/wastewater industry. -Strong analytical, organisational, and problem-solving skills with the ability to manage multiple workstreams and meet challenging deadlines. -Experience in factory inspections, quality audits, and mechanical testing regimes. -Experience of both pre-production and site-based mechanical engineering delivery. -Strong IT skills, including the ability to use company systems and project software. -Experience working within NEC contract environments. -First Aid at Work qualification. -HNC/HND or Degree in Mechanical Engineering (or equivalent). -Experience with AMP frameworks for water companies.

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Benefits

Pay range and compensation package -Dental Insurance -Travel insurance -Critical illness insurance (with option to purchase for your partner) -Competitive salary -Professional membership fees -Flexible Benefits scheme which includes the opportunity to purchase benefits such as: -Private medical insurance for yourself (with the option to buy family cover) -Retail vouchers/payroll giving/activity pass for top leisure attractions -26 days annual leave (with the opportunity to buy or sell up to 3 days holiday) -Defined contribution pension scheme matched up to 8% -Enhanced maternity, paternity and parental leave -2 days volunteering opportunities -Life Assurance -Cycle to work scheme -Employee Assistance Programme -3 additional long service days achieved after 3, 7 and 10 years -Perks at Work Employee discount scheme offering discounts on a range of categories such as electronics, home appliances, food & groceries, car buying, travel, fitness and more -Flexible and Agile working (dependent on your role)

About Tilbury Douglas

-The business has evolved from river cargo handling to civil engineering and infrastructure projects, showcasing its versatility and adaptability over nearly 140 years. -Its services span critical public-sector projects, including schools, hospitals, prisons, highways, water treatment facilities, and defense infrastructure. -The Paragon division specializes in fast-track Cat A/B fit-out services in live and heritage buildings, demonstrating expertise in quick, specialized projects. -Notable projects include the rapid construction of the NHS Nightingale hospital in just nine days, proton beam therapy units, emergency care campuses, and major leisure centers. -The company combines in-house mechanical, electrical, and plumbing engineering with infrastructure delivery, providing integrated project management capabilities.

Sector Specialisms

Visa Sponsorship

-no sponsorship licence; visa sponsorship not provided.

Security Clearance

-bpss clearance required, covering identity, employment history, and criminal record checks.