About the roleWe''re expanding our commercial team to deliver Southern Water''s most ambitious capital programme to date. As a Senior Quantity Surveyor (internally you will be known as Commercial Manager), you''ll play a pivotal role in managing cost, procurement, and contractual governance across large-scale projects that make a real difference to communities and the environment.What you will be responsible for:Act as a key commercial partner, providing expert advice on cost management, procurement, and contractual strategy.Support the full commercial lifecycle-from feasibility and procurement through to change control and dispute resolution.Ensure governance, compliance, and control across all commercial activity.Collaborate with Project Managers and contractors to set realistic cost targets and contractual terms.Drive continuous improvement in managing commercial risk and delivering value for customers and stakeholders.Additional Requirements Strong understanding of NEC contracts and commercial strategy (pre- and post-contract).Ability to influence stakeholders and work collaboratively across teams.What you''ll bring to the role: EssentialRelevant qualification in construction or quantity surveying.Demonstrable experience in commercial management on large-scale infrastructure, utility, or construction projects.Strong commercial acumen and stakeholder engagement skills. DesirableExperience in utilities or water sector.Southern Water is at the forefront of transforming Brita