Assistant Commercial Manager
Water & Environment
Are you looking to build your commercial career in a fast-paced, purpose-driven environment? We are seeking an enthusiastic and detail-oriented Assistant Commercial Manager to support the delivery of high-value infrastructure programmes across the Water & Environment sector, with opportunities to contribute to projects in Defence and Nuclear. This is a fantastic opportunity to gain hands-on experience, learn from industry leaders, and grow within a collaborative and forward-thinking organisation.
Your Role & Impact
Reporting to the Water Cost and Commercial Lead, you'll assist in the commercial management of multi-workstream programmes-supporting procurement, contract administration, and post-contract delivery. You'll work closely with project managers, cost consultants, and supply chain partners to ensure financial accuracy, compliance, and performance across all phases of the project lifecycle.
Key Responsibilities:
Commercial Delivery & Contract Support
Assist in administering NEC3/4 ECC contracts (Options A, C & E)
Support supplier performance tracking, risk mitigation, and contract execution
Help maintain commercial records and ensure compliance with UK regulationsProject & Cost Management
Contribute to feasibility studies, benchmarking, and value management
Assist with cost planning, estimating, and post-contract cost control
Support valuations, change control, and final account preparationStakeholder Engagement & Process Improvement
Act as a reliable interface with clients, consultants, and internal teams
Help maintain lessons learned databases and commercial reporting tools
Contribute to continuous improvement across commercial processesWhat You Bring
Experience in commercial management or quantity surveying within infrastructure or engineering
Strong analytical and financial modelling skills
Familiarity with NEC3/4 contracts and CDM regulations
Excellent communication and stakeholder engagement abilities
Progress toward RICS chartership or equivalent professional development
Valid CSCS card; Water Hygiene Card desirable
Willingness to work on-site at least 3 days per weekRG Setsquare is acting as an Employment Agency in relation to this vacancy