Overview
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.
What You Bring and What You’ll Do
The role reports 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.
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 regulations
* Project & 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 preparation
* Stakeholder 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 processes
What 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 week
* RG Setsquare is acting as an Employment Agency in relation to this vacancy
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