Freelance Senior Quantity Surveyor

Due to ongoing project demands, our client is seeking an experienced Senior Quantity Surveyor to join their commercial team on a freelance basis. This hybrid role will be based out of their Chipping Warden site, offering a mix of site and remote working.
Reporting into the senior Commercial team, you will take responsibility for delivering key commercial functions across your section of works, while also supporting and mentoring junior team members. You will be expected to work both independently and collaboratively, ensuring commercial objectives are achieved in line with project deadlines.

Key Responsibilities
Preparation and agreement of variation accounts (main contract and subcontract)
Monitoring cost against targets and evaluating project performance
Tracking contract progress against programmes and work plans
Input into change control procedures including EOTs, delays, and performance adjustments
Preparation and agreement of interim valuations, final accounts, and subcontract final accounts
Subcontract administration including certification and payment processes
Providing contractual advice to management, ensuring compliance with obligations and notices
Identification and management of commercial risks and opportunities
Negotiation and resolution of disputes
Mentoring and supporting junior commercial staff where required

Degree qualified in Quantity Surveying or equivalent
Working towards or holding professional membership (RICS, CICES or similar)
Proven experience operating at Quantity Surveyor level within a civil engineering environment
Strong track record of delivering positive commercial outcomes on infrastructure projects
Good understanding of contracts, cost management, and commercial reporting
Ability to work independently while supporting wider team objectives
Strong communication and stakeholder management skills
Full UK driving licence and access to a vehicle
Valid CSCS card

Skills & Attributes
Technical Skills:
Strong understanding of cost control, valuations, and contract administration
Experience managing change control processes and commercial reporting
Ability to provide strategic commercial input into projects

People Skills:
Strong communication and negotiation skills
Ability to build effective relationships across multidisciplinary teams
Proactive, organised, and detail-oriented
Leadership and mentoring capability

Our client is a major infrastructure delivery partner working on one of the UK's most significant rail projects. Formed through a collaboration of leading international contractors, they bring together extensive expertise across design, construction, and large-scale civil engineering delivery. With a strong footprint in infrastructure, they are recognized for delivering complex projects including rail, structures, and heavy civils, with a focus on quality, collaboration, and long-term project excellence.