One of London''s most vital transport operations are currently seeking an experienced Assistant Commercial Manager to support the post-contract commercial management of multiple live Facilities Management and maintenance contracts.Role: Assistant Commercial ManagerDuration: 6-9 month contractPay: Up to £360 p/day (Inside IR35 via Umbrella)Location: London (2 days onsite)This role is post-contract focused and will suit someone with hands-on experience managing live contracts, financial processes, and commercial controls. It is not a procurement or tendering role.Key Responsibilities:Support post-contract commercial management across multiple live contractsValidate payment applications and issue payment noticesRaise and manage purchase ordersTrack budgets, update forecasts, and monitor actual spendAnalyse operational and financial data using ExcelMaintain accurate commercial and contract recordsRespond to commercial and scope queries by interpreting contract termsProduce reports, meeting minutes, and commercial updatesWork with a wide range of internal and external stakeholdersYou''ll work closely with Commercial Managers across Hard FM, Mechanical and Electrical, Fire, Fabric and Inspections contracts, supporting day-to-day commercial operations and stakeholder engagement within a complex operational environment.Key Requirements:Experience within rail, transport, or a similar regulated environmentExposure to Hard FM or maintenance contractsProven post-contract commercial exper