Construction Sub Agent, Civil Engineering

The Role

We are working with a leading Tier 1 contractor on the HS2 project in Northamptonshire and are seeking an experienced Sub Agent with a strong structures background to support the delivery of complex civil engineering works.

You will play a key role in the delivery of major structural works, including viaducts and associated concrete structures. Working closely with the Site Agent and wider project team, you will help ensure works are delivered safely, on programme, and to the highest quality standards.

• Support the Site Agent in the delivery of structural and viaduct works
• Manage day-to-day site activities, subcontractors, and engineers
• Ensure works are delivered in line with drawings, specifications, and programme
• Maintain high standards of health & safety, quality, and environmental compliance
• Assist with planning, short-term programming, and method statements
• Coordinate with engineers, designers, and the temporary works team
• Contribute to progress reporting and site documentation

• Proven experience as a Sub Agent or Assistant Site Agent on structures-led civils projects
• Strong background in viaducts, bridges, or reinforced concrete structures
• Experience working on major infrastructure or Tier 1 projects
• HS2 experience is desirable but not essential
• SMSTS and CSCS (essential)
• Strong leadership, communication, and organisational skills