Senior Quantity Surveyor

O’Neill & Brennan UK; Greater London; On-site; GBP 99,000 - 121,000; Full time

Benefits offered by this job

Pension

Private medical

Discretionary bonus

Job summary

O’Neill and Brennan are seeking a Senior / Lead Quantity Surveyor to take commercial responsibility for a hyperscale data centre project in West London. You will lead procurement, cost control, and contractor negotiations on a large-scale, technically complex build.

This permanent role offers up to £110,000 all-in, a pension, private medical, and discretionary bonuses. Right to work in the UK is required; data centre or main contracting experience is valued.

Qualifications

• Proven experience as a Senior Quantity Surveyor/Lead Quantity Surveyor in a main contracting environment.
• Experience on large-scale construction projects within a main contractor is essential.
• Strong commercial management, including procurement, CVRs, forecasting, valuations, variations and final accounts.

Responsibilities

• Take commercial responsibility for allocated work packages or the wider project.
• Manage the commercial lifecycle from procurement through to final accounts.
• Lead subcontractor procurement, tender analysis and package negotiations to ensure value for money.

Skills

Commercial management

Procurement

CVRs & forecasts

Valuations

Variations handling

Final accounts

Negotiation

Stakeholder management

Leadership

Communication

Education

Degree in Quantity Surveying

Job description

Senior / Lead Quantity Surveyor – Hyperscale Data Centre – West London

Salary/Package: Up to £110,000 all-in + pension, private medical and discretionary bonus

O’Neill and Brennan are currently working with a reputable main contractor who have an excellent pipeline of projects within the data centre sector and are looking to appoint an experienced Senior / Lead Quantity Surveyor to take commercial responsibility for a hyperscale data centre project in West London.

They are seeking a commercially astute Quantity Surveyor with a strong background in delivering large-scale projects within a main contracting environment. Previous data centre experience is not essential, making this an excellent opportunity for someone from a major construction, industrial or technically complex project background to move into one of the fastest-growing sectors in the industry.

Experience working on steel frame structures, industrial developments and major M&E packages would be advantageous, although the business is open to candidates with broader large-scale main contracting experience who can demonstrate strong commercial management capabilities.

With a solid pipeline of secured and upcoming work within the data centre space, the business can offer long-term career prospects, exposure to technically challenging projects and the opportunity to play a key role in the delivery of a major hyperscale development.

Role Overview

• Title: Senior / Lead Quantity Surveyor
• Location: West London
• Project Scale: Large-scale, technically complex construction project
• Salary/Package: Up to £110,000 all-in, plus pension, private medical and discretionary bonuses
• Type: Permanent
• Start: ASAP, although the business can wait for the right candidate

Responsibilities

• Take commercial responsibility for allocated work packages or the wider project, depending on experience and seniority.
• Manage the commercial lifecycle from procurement and subcontract negotiation through to valuations, variations and final accounts.
• Lead subcontractor procurement, tender analysis, package reviews and commercial negotiations, ensuring value for money and appropriate risk allocation.
• Prepare and manage monthly CVRs, cost reports, forecasts, budgets and cash flow projections.
• Monitor project costs, profitability, commercial risks and opportunities, implementing appropriate measures to protect margins.
• Manage variations, change control, compensation events where applicable and contractual correspondence.
• Work closely with the Project Director, Project Manager, site teams and wider commercial function to support successful project delivery.
• Review subcontractor applications for payment, valuations and final accounts, ensuring accuracy and contractual compliance.
• Identify commercial risks, scope gaps and opportunities throughout the project lifecycle, providing clear recommendations to senior management.
• Maintain strong relationships with clients, consultants, subcontractors and suppliers.
• Support and mentor junior Quantity Surveyors and contribute to the development of the wider commercial team where appropriate.
• Ensure robust commercial governance, reporting and contractual procedures are maintained throughout the project.

Requirements

• Proven experience as a Senior Quantity Surveyor, Lead Quantity Surveyor or an experienced Quantity Surveyor ready to step up within a main contracting environment.
• Demonstrable experience working on large-scale construction projects for a main contractor is essential.
• Strong commercial management experience, including procurement, subcontract administration, CVRs, forecasting, valuations, variations and final accounts.
• Experience managing significant subcontract packages and negotiating commercial agreements.
• A strong understanding of construction contracts, commercial risk management and cost control.
• Ability to take ownership of commercial packages, manage competing priorities and work effectively alongside operational delivery teams.
• Excellent communication, negotiation and stakeholder management skills.
• Experience on steel frame structures, industrial developments, major M&E packages or other technically complex projects would be advantageous but not essential.
• Previous data centre experience is welcome but not essential; candidates from other large-scale main contracting sectors are encouraged to apply.
• A degree or relevant qualification in Quantity Surveying or a related discipline alongside hands on experience would be advantageous.
• Right to work in the UK.
• Salary/package of up to £110,000 all-in.
• Pension provision and private medical cover.
• Discretionary bonus scheme.
• Opportunity to join a reputable main contractor with a strong pipeline of data centre projects.
• Take a leading commercial role on a hyperscale data centre development in West London.
• Long-term opportunities for career progression within a growing and technically demanding sector.
• Opportunity to transition into the data centre market without needing previous sector-specific experience.