Senior Quantity Surveyor – Rail

Company: Costain
Apply for the Senior Quantity Surveyor – Rail
Location: London
Job Description:

Overview

In this role you will manage contract administration and commercial activities for major rail packages on the HS2 route. You will work within a cross-functional team to identify risks, optimise value, and ensure timely, compliant payments and reports. You will collaborate with client teams and supply chain to deliver complex, multi-contract projects. This is a high-impact opportunity to shape commercial outcomes on a high-profile infrastructure program.

Responsibilities

  • Manage and issue notices and correspondence efficiently and on time
  • Identify contractual and commercial risks and opportunities for the Contract Leader
  • Prepare and agree payment applications and certificates; maintain variation, delay, and claims registers
  • Ensure compliance with company commercial policies and procedures
  • Assist with monthly progress valuations and claims for work completed
  • Interface with Customer’s commercial and project teams
  • Prepare pre-Contract tender negotiations and reports as needed
  • Produce monthly cost reports, forecasts, and Contract Leader Reports
  • Review value management and advise on risk management
  • Prepare supply chain enquiries and manage contracts end-to-end
  • Plan and implement change management and cost control
  • Monitor supply chain procurement plan and benchmarking
  • Liaise with site team, supply chain and Customer representatives
  • Provide contractual advice to project/site teams as appropriate
  • Maintain awareness of current construction contracts and health/safety/environmental implications
  • Raise HSE risks to Contract Leader/Project Manager

Key requirements

  • Post-graduate commercial experience in the construction industry with a demonstrable track record
  • Demonstrable financial and commercial acumen
  • Methodical, logical, practical approach
  • Experience with office management systems and document control
  • Experience with technical minute taking and producing reports, payment certificates and financial closeout
  • Experience drafting contractual correspondence and facilitating collaborative solutions
  • Proven negotiating and team-working skills; ability to motivate and lead a team
  • Strong analytical skills
  • Knowledge of legal, contractual, and construction aspects
  • Confidence to influence others
  • negotiation
  • team-working
  • influencing stakeholders
  • contract administration
  • payments and certificates
  • risk management

…

Posted: October 1st, 2026