Randstad are recruiting for an experienced Site Agent from a civils background to lead the on-site delivery of a major upgrade package at London Heathrow Airport.Operating within a highly regulated, live airport environment, you will take full ownership of day-to-day site operations. You will be responsible for leading delivery teams, managing subcontractors, driving an exemplary safety culture, and ensuring that this high-profile infrastructure package is executed safely, on time, and to budget.This is a fantastic opportunity for a seasoned civils professional to spearhead complex works on one of the world''s busiest aviation hubs.Key ResponsibilitiesSite Leadership: Manage and mentor site engineering and supervisory teams (including Sub-Agents, Section Engineers, and Foremen) to ensure high-quality engineering control and robust record-keeping.Operational Delivery: Oversee daily construction activities, coordinating labor, plant, materials, and temporary works to meet strict project milestones.Safety and Compliance: Drive a "Safety First" culture, ensuring absolute compliance with health, safety, environmental, and quality (SHEQ) standards, CDM regulations, and strict airport authority protocols.Commercial and Planning: Partner closely with commercial and planning teams to monitor performance against target programmes, manage cost controls, and handle change management under NEC contract mechanisms.Stakeholder Management: Liaise confidently with airport stakeholders, airlin