Site Agent / Site Manager – £55,000–£60,000
Location: Rickmansworth
Start Date: 17/11/2025
Employment Type: Permanent
Hours: 45 hours per week
Are you an experienced Site Agent looking for long-term career stability, major infrastructure work, and a supportive environment where people truly come first? An exciting opportunity has arisen for a dedicated professional to lead the successful delivery of civil engineering projects within the water and infrastructure sectors.
The Role
As a Site Agent, you will take full responsibility for the safe, efficient, and high-quality delivery of construction activities. You will work closely with project and commercial teams to ensure programme, cost, and quality targets are met while upholding the highest standards of health and safety and environmental compliance.
You will lead site teams, manage subcontractors, interface with clients, and play a key role in planning, reporting, and commercial performance.
Key Responsibilities
Site Management
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Oversee successful delivery of civil engineering and water sector projects
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Ensure works are completed safely, to specification, and without defects
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Lead a team of Sub Agents, Engineers, and Foremen where required
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Develop and implement Project Plans, RAMS, ITPs and Waste Management Plans
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Manage construction programmes and short-term look-aheads
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Coordinate procurement schedules and ensure adequate site resources
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Maximise commercial performance across all assigned projects
Client Interface
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Represent the business professionally with customers, public bodies, and stakeholders
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Deliver projects that meet or exceed customer expectations
Cost Control
Manage project cost plans to maximise value
Maintain accurate site records and diaries
Highlight value engineering opportunities
Challenge inefficiencies and drive continuous improvement
Reporting
Produce accurate monthly internal and client reports
Lead weekly site meetings
About You – Essential Skills & Qualifications
Proven experience as a Site Agent in civil engineering, ideally in regulated environments
Strong understanding of CDM, contractual conditions, design and risk management, forecasting, and cost control
Solid knowledge of specifications and relevant testing regimes
Degree/HNC in Civil Engineering (or equivalent)
CSCS card (mandatory)
IOSH Managing Safely or SMSTS
Temporary Works Coordinator
Confined space training
Strong communication, leadership, and team-management skills
Ability to resolve design issues and drive high-performance behaviours
Desirable
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Temporary Works Coordinator qualification
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Professional accreditation (e.g., CEng MICE)
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Experience with Primavera P6
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Knowledge of JCT and NEC contracts
Additional Experience Beneficial
Direct delivery experience
Large-diameter clean water pipeline installation and commissioning
Streetworks, ITPs, quality inspections
Temporary works coordination
Health, safety, and environmental management
Permit issuing and service avoidance
Strong Microsoft Office skills
Managing NEC contract processes (EWN/CE), design inputs, subcontractors, programme and cost forecasting
Stakeholder and client management
Leading site-based teams
What’s on Offer
Competitive salary
Company pension and life assurance
Private medical cover
25 days annual leave + bank holidays + loyalty days
Volunteering allowance
Employee assistance programme for wellbeing
Flexible benefits via salary sacrifice
Company car / green car scheme / car allowance / van (depending on role)
Leadership and management training
Regular reviews and structured career progression
Internal and external training support
Long-service recognition awards
If you’re ready to take the next step in your career and contribute to major UK infrastructure projects, this role offers long-term security, professional development, and a supportive environment where people are truly valued