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 Responsibilities Site 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 & 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 & 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, airline operators, clients, and third-party authorities to ensure minimal disruption to live airport operations. Reporting: Maintain comprehensive site records (diaries, RAMS, as-built drawings) and provide formal progress updates to the Project Manager. Candidate Requirements Essential Experience & Qualifications: Civil Engineering Background: A degree, HND, or HNC in Civil Engineering (or a strictly equivalent construction discipline). Aviation Sector Experience: Proven track record of delivering civil engineering schemes within a live, high-security airport environment (airside or landside). Leadership Track Record: Demonstrable experience operating as a Site Agent or Senior Sub-Agent on major infrastructure or complex civil projects. Contract Knowledge: Strong working familiarity with NEC3/NEC4 contract mechanisms. Certifications: Valid SMSTS, CSCS (Management/Supervisor), and First Aid certificates. Security Clearance: Ability to pass a 5-year background check and criminal record checks to obtain an airport airside pass. Desirable Attributes: Deep understanding of heavy civils, terminal upgrades, groundworks, drainage, structures, or pavement/taxiway rehabilitation. Excellent communication skills with a collaborative approach to solving complex engineering obstacles. Membership of the Institution of Civil Engineers (MICE) or equivalent body. Randstad CPE values diversity and promotes equality. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. We encourage and welcome applications from all sections of society and are more than happy to discuss reasonable adjustments and/or additional arrangements as required to support your application. Candidates must be eligible to live and work in the UK. For the purposes of the Conduct Regulations 2003, when advertising permanent vacancies we are acting as an Employment Agency, and when advertising temporary/contract vacancies we are acting as an Employment Business