Outside IR35 Our Client has a requirement for a Site Agent / Site Engineer, who will be required to work on a contract basis at Heathrow. Night Shift or Day Shift available Role Purpose: To manage the day-to-day delivery and technical execution of Q6 cladding works within the Main CTA Tunnel, ensuring works are safely delivered within critical possession windows while maintaining compliance with all regulatory and operational standards. Job Role Responsibilities: Oversee all on-site engineering activities, ensuring compliance with design specifications and Heathrow standards Manage subcontractors and site engineers, driving performance across safety, quality, and programme Lead either day or night shift operations, ensuring effective delivery within 4–5 hour tunnel closure windows Coordinate shift handovers to ensure seamless transition between day and night teams Prepare and review RAMS (Risk Assessments and Method Statements) Ensure strict adherence to health, safety, and environmental requirements Lead short-term planning and monitor progress against programme Identify risks and report progress to the Project Manager Liaise with client, design teams, and stakeholders to resolve technical queries and support integrated delivery Experience / Skills / Knowledge / Qualifications: Strong background in Civil or Structural Engineering Proven experience delivering complex infrastructure projects (tunnels, highways, or rail) Ability to interpret engineering drawings and solve technical challenges on site Experience working in live operational environments Strong communication and leadership skills Desirable: Previous experience in aviation or airside environments Valid CSCS card SMSTS or equivalent health & safety qualification Familiarity with NEC4 contracts and change management Company information At First Recruitment Group we understand just how important it is to secure the right people. That is why our Recruitment Consultants always take the time to understand requirements in detail and offer sound advice to both clients and candidates. We actively recruit at all levels and this is a superb opportunity for a Site Agent / Site Engineer looking for new employment.