Site Agent

Job Title: Site Agent

Job Type: Permanent

Start Date: ASAP

Salary Range: £60,000

Benefits Package: £5,750 car allowance + Benefits

Location: Sellafield

Full Site Based/Hybrid/Remote Working: Full-time, Onsite

Hours of Work: Monday - Friday, 40 hours per week

Role Information

An exciting opportunity has arisen for an experienced Site Agent to lead the safe and successful delivery of major infrastructure projects. You will be responsible for managing construction activities from mobilisation through to completion, ensuring projects are delivered safely, on programme, within budget, and to the highest quality standards.

Working closely with project, commercial and engineering teams, you will oversee subcontractors, manage project performance, and build strong relationships with clients and key stakeholders. This is an excellent opportunity for a proactive construction professional with experience delivering complex infrastructure or regulated industry projects.

Key Responsibilities

• Lead the delivery of construction activities, ensuring compliance with project specifications, programme, budget, and contractual requirements.
• Develop subcontract work packages, scopes of work, and construction programmes in collaboration with commercial and procurement teams.
• Manage subcontractors and suppliers throughout the project lifecycle, ensuring safe, efficient, and high-quality delivery.
• Review subcontract performance, variations, and monthly accounts alongside the commercial team.
• Produce and manage cost and value forecasts, identifying variances and implementing recovery plans where required.
• Coordinate material procurement requirements with commercial and procurement teams.
• Ensure compliance with all health, safety, environmental, quality, and sustainability requirements across the project.
• Produce, maintain, and manage the construction elements of the Integrated Management Plan and associated project documentation.
• Plan and manage construction resources, identifying training requirements and supporting workforce development.
• Develop, maintain, and monitor the construction programme, working closely with planners and project teams.
• Establish production targets, monitor project performance, and implement actions to improve productivity and efficiency.
• Challenge designs, specifications, and construction methods to drive continuous improvement and value engineering.
• Contribute to project risk management activities, maintaining risk and opportunity registers and supporting mitigation plans.
• Maintain accurate records of project changes and support the commercial team with change management and compensation events.
• Build and maintain strong working relationships with clients, designers, subcontractors, and other key stakeholders.
• Manage project reporting, including progress updates, forecasting, payment applications, compliance reporting, and project handover documentation.
• Ensure all project documentation is accurately maintained within company document control systems.

Qualifications/Experience Required

• Proven experience in a Site Agent role delivering major infrastructure, civil engineering, or regulated industry projects.
• Strong understanding of construction management, subcontractor management, and project delivery.
• Experience managing commercial aspects of construction projects, including forecasting, change management, and subcontract administration.
• Excellent knowledge of construction planning, programming, and resource management.
• Experience working collaboratively with engineering, commercial, planning, and project management teams.
• Experience working within document management and project reporting systems.
• Relevant construction qualification (HNC/HND/Degree or equivalent) with SMSTS and CSCS desirable.

UK National Security Vetting Status

Ability to gain SC Clearance.

Interested in this position? Please click "Apply Now".

We try to respond to all applicants; however, due to high application volumes this is not always possible. If you have not heard from us within 14 days, unfortunately your application has been unsuccessful on this occasion.

Company Information

This permanent vacancy is being advertised by Rullion Ltd.

Since 1978, Rullion has been securing exceptional candidates for a wide range of clients, from major global organisations to innovative SMEs and start-ups. As a family-owned business, Rullion's approach is built on credibility, honesty, and long-term relationships.

Rullion specialises in delivering talent consultancy solutions across multiple sectors and is committed to championing diversity, inclusion, and equal opportunities for all employees and applicants.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.