Site Agent

Sphere Solutions; Wales; On-site; GBP 55,000 - 65,000; Full time

Job summary

A well-established civil engineering contractor in the United Kingdom is seeking a Site Agent to manage rail and civil engineering projects in Wales. You will lead the site team, ensuring project delivery meets quality and financial goals while maintaining strong stakeholder relationships. The ideal candidate has proven experience in civil engineering along with leadership skills and relevant certifications. This role offers a competitive salary package.

Qualifications

• Proven experience in civil engineering or infrastructure construction projects.
• Strong leadership skills to manage site teams and subcontractors.
• Sound commercial awareness regarding budgets and cost control.

Responsibilities

• Lead and manage the on-site delivery of civil engineering and rail projects.
• Ensure compliance with health, safety, environment, and quality standards.
• Oversee subcontractor procurement and performance.

Skills

Leadership skills

Commercial awareness

Organisation skills

Knowledge of HSQE standards

Communication skills

Education

Civil engineering qualification (HNC/HND or Degree)

Tools

CSCS

SMSTS

Job description

Site Agent (Rail)

Cardiff

£55k - £65k + 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

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.
• Ability to work under pressure, problem solve, and maintain high standards of safety and quality.

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