Quantity Surveyor

Senior Site Quantity Surveyor / Assistant Site Quantity Surveyor Central London | £300 - £450 Per Day | Long-Term Freelance Opportunity A confidential client is seeking both a Senior Site Quantity Surveyor and an Assistant Site Quantity Surveyor to join a major construction project in Central London. This is a long-term opportunity on a prestigious development, with works expected to continue well into 2027/2028. Senior Site Quantity Surveyor The successful candidate will take responsibility for the day-to-day commercial management of the project, overseeing trade packages, valuations, variations, instructions, cost control and final accounts. Key Responsibilities: Commercial management of multiple trade packages Managing variations, change control and valuations Reviewing and negotiating subcontractor accounts Undertaking measurements and take-offs Maintaining commercial records and reporting Supporting procurement activities Managing and mentoring an Assistant QS Working closely with project teams, consultants and subcontractors Requirements: Proven Quantity Surveying experience within construction Strong knowledge of valuations, variations and final accounts Experience working on refurbishment, heritage, high-end residential or complex building projects advantageous Excellent measurement and commercial management skills Ability to operate effectively within a fast-paced site environment Assistant Site Quantity Surveyor Working alongside the Senior QS, you will support the commercial management of the project through measurement, valuations, record keeping and day-to-day commercial administration. Key Responsibilities: Quantity take-offs and site measurement Supporting valuations and payment assessments Maintaining variation and instruction registers Reviewing dayworks and site records Assisting with procurement and tender comparisons Maintaining accurate commercial documentation Supporting final account preparation Requirements: Strong numerical and measurement skills Familiarity with valuations and variations Good Excel and commercial administration skills Ambition to progress into a more senior commercial role Project Details Central London location Long-term project with excellent continuity of work Flexibility around working hours where required Potential hybrid working arrangement depending on circumstances