Senior Site Engineer

Freelance Site Engineer / Senior Site Engineer
Groundworks, Structures & S278 Works
Location: Hayes (West London)

We are currently recruiting for an experienced Freelance Senior Site Engineer to join a major data centre project based near Hayes. This role is with a leading subcontractor delivering groundworks, structural works, and S278 infrastructure packages on a large-scale, high-profile scheme.

This is a fantastic opportunity to be part of a technically demanding project with long-term work potential.

Key Responsibilities:

• Carry out and oversee accurate setting out for groundworks, structures, and S278 works
• Manage and mentor site engineers and junior staff
• Ensure QA processes are implemented and maintained across all works
• Interpret and review technical drawings and specifications
• Raise and manage RFIs and resolve on-site engineering issues
• Liaise with site management, subcontractors, and client representatives
• Maintain high standards of health, safety, and quality on site
• Support delivery in line with programme requirements

Requirements:

• Strong experience in groundworks, RC/steel structures, and/or S278 works
• Proven track record working on large-scale infrastructure or data centre projects
• Excellent setting out and surveying skills
• Confident managing engineering teams on site
• Proficient with modern surveying equipment and software
• CSCS card required (additional tickets advantageous)

What’s on Offer:

• Competitive freelance rates
• Long-term opportunity on a flagship data centre project
• Engineering instruments, laptop, and phone provided by the client
• Payment via CIS (through a third-party payroll provider)

If you’re a driven Senior Site Engineer looking to take on a key role within a major project, we’d love to hear from you.

Keywords - Senior Site Engineer, Site Engineer, Setting out Engineer, Project Engineer, Section Engineer, Construciton Site Engineer, Senior Setting out Engineer.