Sub Agent - Ground Investigation Works
Heathrow Airport
(Inside IR35 - Umbrella PAYE)
Long-Term Contract

We are currently recruiting for an experienced Sub Agent to support the delivery of a major Ground Investigation package at Heathrow Airport.

This role will suit a Sub Agent with a strong background in geotechnical and ground investigation works, managing site teams and specialist subcontractors undertaking cable percussion boreholes, deep boreholes (up to 60m), window sampling, and associated site investigation activities.

• Managing Ground Investigation works across site.
• Overseeing drilling and sampling operations including Cable Percussion (CP) Boreholes and Window Sampling.
• Ensuring works are delivered safely, efficiently, and in accordance with RAMS and ITPs.
• Managing subcontractors and coordinating daily site activities.
• Reviewing technical information, ground investigation logs, and reports.
• Producing site documentation, permits, task briefings, and progress reports.
• Maintaining high standards of health, safety, environmental, and quality compliance.

• Previous experience as a Sub Agent, Section Engineer, or Senior Engineer delivering Ground Investigation works.
• Strong understanding of:
  • Cable Percussion Boreholes
  • Deep Boreholes (up to 60m)
  • Window Sampling
  • Geotechnical Site Investigations
  • RAMS, ITPs, Permits & Quality Processes
• Valid CSCS Card.
• Heathrow Airport experience advantageous but not essential.
• Ability to obtain full airside clearance.