Site Agent

Site Agent (Rail)

Cardiff

£55k - £60k + package

Our client is a well-established civil engineering contractor operating across Wales, the English border counties, and the West of England. They deliver projects in infrastructure, highways & bridges, rail, utilities, water management, geotechnical works and more.

Role Purpose

As Site Agent, you will lead and manage the on-site delivery of civil engineering and rail projects. You will ensure projects are executed safely, on time, to quality standards, and within commercial parameters — while also leading the site team, subcontractors, and managing client/ stakeholder relationships.

Key Responsibilities

• Lead the site team through mobilisation, construction, to hand-over, ensuring safe and efficient delivery.
• Manage compliance with health, safety, environment, quality (HSQE) procedures, including risk assessments, method statements, and SHEQ standards.
• Plan, manage and deliver site programmes — ensuring milestones and project deliverables are met.
• Oversee subcontractor procurement, coordination, and performance; manage subcontractor packages appropriately.
• Maintain strong client and stakeholder relationships — representing Griffiths on site, ensuring good communication, commercial transparency, and client satisfaction.
• Manage financial and commercial performance of assigned schemes — monitor cost, margin, programme risk/opportunities, and deliver target gross-site margins.
• Lead the site team — motivate, develop, and manage staff and subcontractors; ensure individuals’ performance and competencies align with project demands.

Person Specification – Required / Desirable Skills & Experience

Essential:

• Proven experience in civil engineering or infrastructure construction projects (e.g. highways, drainage, utilities, rail, general civils).
• Strong leadership and team-management skills — ability to lead a site team, subcontractors, and ensure accountability.
• Sound commercial awareness — understanding budgets, margins, cost control, subcontractor packages and delivery performance.
• Good knowledge of HSQE, site safety, environmental and quality standards.
• Strong organisational, planning and communication skills — able to coordinate multiple activities, stakeholders, deadlines.
• Relevant site-certifications & qualifications (e.g. CSCS, SMSTS, or equivalent; First Aid and/or Temporary Works Coordinator desirable — depending on project scope).
• Ideally comes from a  technical background for tenders, work winning, programming jobs/ write programmes etc

Desirable:

• Civil engineering qualification (HNC/HND or Degree) or equivalent experience.
• Experience with highways/roads, drainage, surfacing or railway-related projects (rail civil, structures etc).
• Familiarity with NEC or similar contract forms and understanding of contract compliance and change control.

Package:

• Work Location : Wales and Boarders
• Company Car Allowance / Company Car
• Working Hours: 45hrs / week
• Holidays: 28 days including Bank holidays per annum
• Pension: 5% employer contribution
• Death in Service: 4x Salary
• Sick pay:

If you are interested and want further details, please don’t hesitate to get in touch.