Freelance Quantity Surveyor / Senior Quantity Surveyor Water Infrastructure (Outside IR35) Location: West London / Hybrid (1 2 days per week on site) Contract Type: Freelance IR35: Outside Rate: Up to £475/day (SQS)We re looking for experienced Senior Quantity Surveyors to support a Tier 1 contractor on a long-term water framework in the West London region.This is a great opportunity to join an established commercial team with consistent workload and long-term prospects. The framework is ramping up, and we re looking for commercially strong QSs who can add value straight away.Key Experience Required: Water sector experience (preferred) Tier 1 civils background (essential if not from water) NEC contract experience (vital other forms such as JCT won t be suitable) Full project lifecycle experience Strong commercial acumen ideally an old-school Project QS type who can manage all areas of the role, not just CEs or payment applications The Role: You ll be responsible for full commercial management support across multiple projects, including: Change management and compensation events Subcontract management and payments Cost and value reporting (CVRs) Supporting project and framework-level commercial delivery Why Apply? Outside IR35 long-term freelance opportunity Excellent day rates: up to £400/day (QS) £475/day (SQS) Hybrid working: only 1 2 days per week required on site (West London) Long-term continuity on a growing AMP programme Work with a strong Tier 1 commercial team w