Senior Quantity Surveyor

Location: South East London

Description Join Trant Engineering and help shape the delivery of complex, high-impact projects. Trant Engineering is a leading EPC contractor with a strong reputation for delivering innovative engineering solutions across the UK and internationally. With over 1,000 employees and a £150m turnover, were growing and now looking for an Senior Quantity Surveyor to play a key role in our project delivery teams.

The Role The Senior Quantity Surveyor provides expert commercial and contract management support across multiple projects The role involves monitoring costs, managing subcontractors, administering contracts, and supporting the Managing Quantity Surveyor and project teams to deliver projects on time, within budget, and in compliance with contractual obligations. The Senior Quantity Surveyor is responsible for ensuring robust cost control, managing variations and claims, and supporting effective financial reporting for multiple projects and sites.

What Youll Be Doing Technical Responsibilities
- Commercial Management Administer contracts in accordance with company procedures. Support the preparation of tender documents, contracts, budgets. Support the preparation and negotiation of variations, compensation events, and change orders. Advise project teams on contractual obligations, commercial risks, and potential claims. Monitor project budgets, expenditure, and forecasts across allocated projects. Manage subcontractor contracts, payments, and variations. Produce cost reports, cash flow updates, and commercial summaries for project and senior management.

Assist in final account preparation and submission. Compliance and Risk Ensure compliance with company policies, procedures, and client requirements. Maintain accurate and auditable project records for all commercial activities. Identify, record, and escalate commercial risks to the Managing Quantity Surveyor or Commercial Manager. Support procurement and ensure subcontract agreements comply with head contracts. Stakeholder Engagement Work closely with Project Managers, site teams, and finance teams to provide commercial guidance.

Liaise with clients, subcontractors, and suppliers to support contractual and commercial outcomes. Support the Managing Quantity Surveyor in mentoring junior commercial staff. Monitor subcontractor performance and address commercial issues proactively. Key Interfaces Managing Quantity Surveyor / Contract Managers Project Directors / Project Managers Site Managers and Engineering Leads Finance, Procurement, and Planning Teams Clients (Water and Energy sectors) Subcontractors and Suppliers Core Values Uphold and promote the Companys Core Values Care, Trust, Respect and Sustainability.

What Were Looking For Essential Degree or HNC/HND in Quantity Surveying, Commercial Management, Engineering, or related discipline Proven experience as a Senior Quantity Surveyor in engineering, construction, or utilities. Strong knowledge of UK contract forms and commercial procedures. Experience managing costs, variations, and claims across multiple projects. Excellent financial, analytical, and negotiation skills. Desirable Chartered status (RICS) or working towards Why Join Trant?

At Trant Engineering, we deliver complex, high-value engineering and construction projects across the UK. From process and water treatment to energy infrastructure upgrades, we play a key role in delivering and protecting critical national infrastructure shaping the systems that communities and industries rely on every day. Our teams design and deliver full EPC solutions, combining technical excellence with practical, hands-on delivery.

We offer end-to-end capabilities from concept and design through to manufacturing, construction and commissioning utilising a continually evolving in-house expertise. This means youll work on projects that are varied, challenging and genuinely impactful. Our multi-disciplinary teams bring together specialists in civil, mechanical, electrical, process, instrumentation, and control & automation engineering, alongside our in-house manufacturing of control panels, MCCs, PLCs and SCADA systems.

With over 1,000 people and a strong,…