Quantity Surveyor (QS)

ONNEC Group; City Of London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading technology partner in the UK seeks a Quantity Surveyor to safeguard financial interests of their projects. The role involves commercial support, cost management, and collaboration with project teams. Successful candidates will have experience in telecommunications infrastructure and hyperscale data centre projects. Qualifications include CTPM, Prince 2, and strong negotiation skills. This position offers the chance to work in a supportive environment focused on professional growth.

Qualifications

• Thorough experience at project management level.
• Excellent technical knowledge of industry project delivery processes.
• Understanding of PRINCE2 standards.

Responsibilities

• Provide robust support to on-site project teams.
• Monitor project costs against budget and implement corrective actions.
• Manage and assess variations and changes to the scope of work.
• Identify commercial risks and opportunities.
• Work collaboratively with internal departments and external stakeholders.

Skills

Telecommunications Infrastructure Cabling

ICT or Security deployments

Presentation skills

Managing multiple projects

Commercial negotiations

Education

CTPM

Prince 2

BICSi

ITIL Foundation

MSP

Job description

Reporting to the Senior Commercial Manager, the Quantity Surveyor (QS) will provide revenue protection support to our on-site operations teams and safeguard the financial and contractual interests of the business. This role is pivotal in ensuring commercial control, accurate variation cost management, and the successful delivery of high-quality projects in line with client and business expectations. The QS will work in close partnership with Project Managers, Commercial Managers and Operations Managers to ensure the commercial integrity of our projects is maintained throughout the project lifecycle. A key focus of the role is to safeguard project margins by proactively identifying and mitigating potential risks to profitability before they materialise. This will be achieved through the delivery of strong, hands‑on commercial support to site-based teams, rigorous enforcement of contractual obligations, and diligent cost control. The QS will play a critical role in ensuring that commercial best practices are consistently applied, enabling informed decision‑making and reinforcing the financial resilience of the business. The QS will bring a demonstrated history of success on Hyperscale Data Centre projects, with in‑depth expertise in all relevant technical specifications and commercial documentation. They will exhibit strong interpersonal abilities and effectively engage across all levels of the organisation. Proven leadership capabilities, along with exceptional communication and influencing skills, will enable them to collaborate confidently with both internal teams and external stakeholders. While this position will primarily support the on‑site project teams, it will also carry the responsibility of holding teams accountable when business processes and commercial protocols are not being followed. The QS will be expected to constructively challenge non‑compliance, escalation concerns where necessary, and drive adherence to best practices that protect the business’s financial and contractual position. The role demands the ability to confidently guide and influence operational teams while upholding governance standards, all without undermining a collaborative working environment.

What you’ll be doing as our Quantity Surveyor (QS):

• Provide robust support to on-site project teams, ensuring compliance with contractual terms and the financial integrity of projects.
• Monitor project costs against budget, identify variances, and implement corrective actions to maintain profitability.
• Manage and assess variations and changes to the scope of work; prepare and submit cost proposals and claims in a timely and accurate manner.
• Support and manage monthly valuations, cost/value reconciliations, and financial forecasts for internal and external stakeholders.
• Identify commercial risks and opportunities and support strategic decision‑making to protect the business.
• Administer the main contract and subcontracts in accordance with legal and company procedures.
• Work collaboratively with internal departments (e.g. Sales, Commercial, Finance, D&E, Legal etc) and external stakeholders (clients, consultants, subcontractors) to ensure project success.
• Develop, implement, and maintain sound business practices.
• Manage the negotiation of contract pricing with suppliers when necessary.
• Grow long‑term relationships with clients
• Effectively communicate relevant practice information to superiors.
• Take responsibility for various special projects from time to time.
• Proven ability to interpret contract terms to formulate and substantiate claims, protecting the business from margin erosion while also enhancing profitability through the effective management of variations.

Experience

• Experience of Telecommunications Infrastructure Cabling, ICT or Security deployments.
• Experience of delivery Hyperscale Data Centre projects.
• Ability to produce and deliver client presentations in a clear, concise and confident manner.
• Ability to absorb and manage new services and applications.
• Experience and temperament to deal with multiple projects and production activities.
• Proven ability to develop, review and enhance project delivery documentation.
• Experience of delivering services against formal sub‑contracts.
• Experience of handling commercial negotiations with Main Contractors across EMEA.

Essential

• Thorough experience at project management level.
• Thorough experience working in the IT environment.
• Excellent technical knowledge of industry project delivery processes.
• Excellent technical knowledge of project contracts scope and deliverables.
• Good presentation skills.
• Understanding of PRINCE2 standards.

Qualifications

• CTPM
• Prince 2
• BICSi
• ITIL Foundation
• MSP

ONNEC Group are a leading independent technology partner and global integrator, with over 30 years experience, and a 800+ team of global experts, specialising in providing end‑to‑end connectivity solutions that propel organisations everywhere. From structured cabling to managed services, our end‑to‑end services give infrastructure that can be completely replied on. Design. Build. Deploy. Optimise. We offer a complete solution for business connectivity. We are a rapidly growing organisation and finding and retaining the highest calibre of people is fundamental to us for the success of our business, we work hard to create a challenging, supportive and satisfying working environment for all our employees. ONNEC has successfully achieved the Investors in Diversity Foundational Award for our commitment to equality, diversity and inclusion in the workplace.