Senior Mechanical Engineer - Water / Wastewater

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Senior Mechanical Engineer - Water & Wastewater (Contract)
Shape the next generation of UK water infrastructure.

We are seeking an experienced Senior Mechanical Engineer to support a portfolio of long-term capital delivery programmes across the UK water sector. This is a contract role offering flexible working locations across England & Wales.

You will be engaged on a range of infrastructure and non-infrastructure schemes within regulated water and wastewater environments, contributing to projects from early concept through to construction delivery. Assignments will vary from small rural assets to large, complex treatment and pumping facilities operating within AMP8 and AMP9 investment cycles.

This opportunity suits a contractor who enjoys technical ownership, autonomy and working within multi-disciplinary delivery teams on high-value regulated frameworks.

Key Responsibilities

Deliver mechanical design outputs across all project stages including feasibility, concept, detailed design and construction support

Develop mechanical layouts, equipment schedules, technical specifications and design drawings

Select and specify mechanical plant and systems for water and wastewater treatment facilities

Carry out pumping station design including system modelling, headloss calculations and pump selection

Produce WIMES datasheets, valve schedules, P&IDs and lifting / maintenance strategies

Liaise with civil, electrical and process engineers to ensure coordinated, buildable solutions

Participate in technical reviews, value engineering and design assurance activities

Support bid development, cost forecasting and programme planning where required

Undertake site surveys, inspections and interface with contractors and equipment suppliers

Typical assets include pumping stations, screens, grit removal systems, odour control plant, penstocks, valves and associated pipework installations.

Candidate Profile

Degree qualified in Mechanical Engineering or equivalent

Working towards or holding Chartered status with a relevant professional institution (e.g. IMechE)

Proven background delivering mechanical designs within regulated water or wastewater environments

Strong technical capability in producing calculations, reports, specifications and coordinated design packages

Comfortable operating in fast-paced framework delivery environments with multiple stakeholders

Contract Details

Inside IR35.

Hybrid working available with flexible office base across England & Wales

Long-term framework work with strong pipeline through AMP8 and AMP9

Immediate or short-notice starters welcomed

If you're a senior mechanical engineer looking for technically engaging, long-term contract work within the UK water sector, this is a strong opportunity to embed yourself in high-profile capital programmes and deliver assets that make a tangible environmental impact.

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Location:
London
Salary:
£50 - £65 per hour + None
Job Type:
FullTime
Category:
Engineering

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