Site Agent

Colas Ltd are a UK subsidiary of the global Colas Group, which operates in over 50 countries worldwide and employs over 55,000 people including over 1500 in the UK across multiple sites. We are specialists in highways construction and have been involved in large-scale UK and international construction projects within the highways, airfields, and marine sectors as well as offering highways maintenance services and manufacturing our own innovative surfacing products. We hold a 'Gold Investor in People' award for continuously developing and rewarding our employees, offering excellent career potential.  

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Purpose of the Role

We are seeking a proactive Site Agent to oversee the efficient delivery of carriageway and footway contracts across the UK. You will manage client expectations, ensure compliance with quality, health, safety, and environmental standards, and work within financial limits to achieve budget targets. Frequent travel and close coordination with site teams, subcontractors, and management will be essential.

Main Responsibilities

You will supervise contracts, coordinate manpower, plant, vehicles, and materials to ensure smooth, safe operations. Key duties include providing clear instructions to foremen, completing necessary reports and accounts input, agreeing final measures with clients, and reviewing contracts weekly to monitor budgets and margins. Ensuring safety through toolbox talks, compliance with COSHH and Chapter 8 requirements, completing safety observations, and supporting accident investigations will be fundamental.

Commercially, you will track wages, outputs, vehicle reports, and help promote specialist surface treatments to grow the business. Ad hoc tasks may be assigned by your line manager.

Ideal candidate

The successful candidate will have at least three years of experience in a similar role, with practical qualifications such as NVQ3 Highway Maintenance or ONC. A strong understanding of surface treatments, experience managing teams and resources, and a full driving licence are essential. Additional qualifications like NRSWA, 12D Supervisor, SMSTS or SSSTS are desirable.

Strong communication, leadership, organisation, and problem-solving skills are needed, alongside a commitment to quality, safety, and teamwork. You should be reliable, adaptable, and customer focused with a positive attitude.

Package Description

Here at Colas, we offer a great total compensation package, including:

• • A salary between £45,000 and £55,000
  • Our Colas Pension Scheme has combined contributions of up to 10%
  • Life Assurance Scheme, which is x4 basic salary
  • 25 days of annual leave per year + Public Holidays
  • Holiday Purchase & Selling Scheme
  • Hybrid Working Scheme (dependent on the role)
  • Family-Friendly Benefits, including Enhanced Maternity and Paternity Pay
  • Opportunities to study towards a fully funded Professional Qualification
  • Ongoing personal/professional development
  • Discounts on car leasing, holidays, cinema tickets, restaurants and much more through our online employee benefits portal

At Colas, our culture is guided by four core values: Respect, Commitment, Pioneering, and Sharing. These values shape how we work, collaborate, and grow together. We believe that respect is the foundation of every relationship. By treating others as we wish to be treated, we foster fairness, transparency, and inclusion within our teams and with our clients, communities, and partners. Commitment means dedicating ourselves fully to everything we do. We strive to create an environment where everyone feels valued, supported, and empowered to make a meaningful impact. With a pioneering spirit, we prioritise bold innovation over blind ambition. We welcome new ideas, invest in our people, and work to deliver sustainable infrastructure solutions that shape the future. Through sharing, we build trust and solidarity, encouraging collaboration and growth at all levels of the business. 

Colas Ltd is committed to building a diverse and inclusive workforce that mirrors the communities we serve. As an equal opportunity employer, we welcome applications from all backgrounds. If you want a workplace where your voice is valued and your potential is developed, Colas is the right choice. 

Note to Recruitment Agencies                                                                                                                                         

In line with our Company Policy, Colas Ltd has a preference for direct hiring and we will reach out to our PSL (Preferred Suppliers List) agencies if the role is eligible for release. We do not accept speculative CVs from agencies. If a speculative CV is sent, no fee will be applicable.