A leading UK main contractor is seeking an experienced Senior Quantity Surveyor or Commercial Manager to manage high-value modular defence projects in London SE1. You will oversee commercial management, cost planning, procurement, and subcontract management, while liaising with clients in secure environments. The ideal candidate should have experience in modular construction and strong contractual knowledge. This role offers competitive salary, career progression, and a stable workload in a growing defence division. #J-18808-Ljbffr