Sub Agent (Water Treatment / Heavy Civils) Location: Southampton, Hampshire Contract Rate: £400 - £450 per day (LTD - IR35 Determination Pending) Duration: Long-Term Contract (AMP8 Framework) Start Date: Immediate / ASAP Project Overview We are seeking an experienced Sub Agent to join a major delivery contractor managing a multi-million-pound capital upgrade at a key Water Treatment facility in Southampton. This long-term position offers excellent stability within the newly launched AMP8 framework. Reporting directly to the Site Agent / Project Manager, you will take operational ownership of heavy civil engineering workstreams-including deep drainage, reinforced concrete (RC) structures, temporary works, pipework packages, and earthworks-driving site execution safely, efficiently, and to high quality standards. Key Responsibilities Operational Site Delivery: Lead daily site operations for major civils workstreams, coordinating site engineers, general foremen, direct labor, and specialist sub-contractors. Programming & Lookaheads: Manage 3-to-6 week lookahead programmes, monitoring progress, managing resource allocation, and proactively resolving operational bottlenecks. Technical & Design Interface: Oversee technical queries (TQs), RFIs, and temporary works management, ensuring alignment between design teams, site operations, and client standards. Quality & Assurance: Implement and enforce Inspection and Test Plans (ITPs), oversee quality sign-offs, track non-conformances, and maintain comprehensive site records. Health, Safety & Environment: Review and sign off on RAMS, issue Permits to Work/Dig, manage environmental compliance, and champion a zero-harm site culture. Requirements & Qualifications Experience: Proven track record as a Sub Agent or Senior Site Engineer delivering heavy civils or water infrastructure schemes (WTW / WwTW) under UK AMP frameworks. Technical Knowledge: Strong background in reinforced concrete structures, deep excavations, underground pipework networks, and temporary works on operational water sites. Qualifications: HND, HNC, or Degree in Civil Engineering (or equivalent practical industry experience). Mandatory Certifications: Valid CSCS Card (Black / Gold) SMSTS EUSR National Water Hygiene Card First Aid at Work Desirable: Temporary Works Coordinator (TWC) and Confined Spaces certification. Randstad CPE values diversity and promotes equality. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. We encourage and welcome applications from all sections of society and are more than happy to discuss reasonable adjustments and/or additional arrangements as required to support your application. Candidates must be eligible to live and work in the UK. For the purposes of the Conduct Regulations 2003, when advertising permanent vacancies we are acting as an Employment Agency, and when advertising temporary/contract vacancies we are acting as an Employment Business
Sub Agent in Southampton employer: Randstad Construction and Property
As an employer, we pride ourselves on fostering a dynamic and supportive work environment in Dartford, Kent, where our team members are empowered to grow and develop their skills. With a strong focus on employee well-being, we offer competitive pay rates, flexible working hours, and opportunities for career progression within the vital infrastructure sector. Join us in making a meaningful impact on the M25 network while enjoying a collaborative culture that values innovation and teamwork.
Contact Details:
Randstad Construction and Property Recruitment Team
