* Lead cost management for major hyperscale data centre construction projects, ensuring costs are planned, tracked, controlled, and reported in line with approved budgets, timelines, and Nscale standards. * Develop, manage, and maintain detailed project budgets, CAPEX models, cost plans, cost breakdown structures, and cost-to-complete forecasts. * Prepare and deliver detailed cost reports, forecasts, cash flow analyses, and financial updates, ensuring accuracy, transparency, and timely insight into project cost performance. * Undertake budget preparation and benchmarking exercises, including cost modelling, market testing, comparative analysis, and review of outcomes with senior stakeholders. * Analyse and present cost information to senior management, providing commentary, trend analysis, and recommendations to support project and executive decision-making. * Monitor project commitments, actual costs, forecast costs, risk allowances, contingency, and budget movements throughout the full project lifecycle. * Support procurement activity through cost estimates, tender cost reviews, bid comparisons, package analysis, and value-for-money assessments. * Review contractor and consultant payment applications, valuations, invoices, and supporting documentation to ensure accuracy and alignment with agreed scope and contract terms. * Manage cost change control, including assessment of variations, scope changes, cost impacts, trends, and potential budget movements. * Support value engineering exercises and cost-saving initiatives, identifying opportunities to optimise expenditure while maintaining safety, quality, resilience, programme, and operational requirements. * Maintain visibility of project cost risks and opportunities, supporting risk reviews through cost analysis, financial modelling, and quantified recommendations. * Oversee cost close-out processes, including budget reconciliation, final cost reporting, account settlement support, lessons learned, and handover of cost data for future benchmarking. * Collaborate cross-functionally with Development, Construction, Design, Procurement, Finance, Commercial, and Operations teams to ensure cost objectives are aligned with design, schedule, procurement, and operational goals. * Stay informed on regional market trends, construction inflation, labour and material indices, supplier pricing, and regulatory developments, applying insights to continuously refine cost plans and maintain best-in-class delivery standards.