Job Description:

Senior Site Engineer - Water Project - Civil Engineering - Major Infrastructure 

Location: Oxford, Oxfordshire 
Rate: £350 - £400/day Outside IR35
Contract Type: Freelance
Start Date: June 2026

Are you an experienced Senior Site Engineer looking for your next challenge on a major reservoir and water infrastructure project? We are recruiting for a Tier 1 civil engineering contractor delivering a significant reservoir improvement / water infrastructure scheme, offering long-term work and career progression opportunities.

This is an excellent opportunity for a Senior Engineer with a strong background in heavy civils, water, infrastructure, earthworks, reinforced concrete and major projects.

Key Responsibilities

• Overseeing engineering activities across the reservoir project
• Managing and reviewing setting out activities
• Producing and reviewing RAMS, ITPs, WPPs and QA documentation
• Ensuring works are delivered safely, to programme and specification
• Managing subcontractors and site teams
• Liaising with Site Agents, Project Managers and client representatives
• Managing temporary works coordination requirements
• Reviewing drawings and resolving technical queries
• Supporting planning and sequencing of works
• Maintaining quality standards and ensuring compliance with project requirements

Requirements

• Previous experience as a Senior Engineer on civil engineering projects
• Reservoir, water, highways, flood defence, utilities or heavy civils experience desirable
• Strong understanding of earthworks, drainage, reinforced concrete and infrastructure delivery
• Experience managing engineers and subcontractors
• CSCS Card
• SMSTS / SSSTS beneficial
• Temporary Works knowledge advantageous
• Ability to read technical drawings and specifications
• Full UK Driving Licence

Desirable Experience

• Reservoir upgrades or heavy earthworks projects
• Water treatment or AMP framework experience
• NEC contract awareness
• Environmental Agency or water sector project experience
• Heavy civils contractor background

What’s On Offer

• Long-term project pipeline
• Competitive rates / package
• Major infrastructure project exposure
• Strong team environment
• Opportunity to work on complex reservoir engineering works

If you're a Senior Site Engineer looking for your next opportunity within civil engineering, water infrastructure, reservoir projects or heavy civils, apply today with your CV.