An exciting opportunity has risen for a Cost Engineer to cover maternity leave based in Warrington on a hybrid basis (2 days a week) with part time and flexible working options available. This is a 12-month contract role inside IR35 at £55ph (umbrella). Only apply if you are a British Citizen and passport holder and not have worked outside the UK during the past 5 years. You will require BPSS clearance for this role. ROLE RESPONSIBILITIES: We're looking for a cost engineer who bring a positive, proactive, can do attitude to their work. You'll thrive here if you enjoy solving problems, taking ownership and helping project teams make informed decisions. Strong Excel skills, confident communication, and the ability to build effective relationships with stakeholders at all levels are essential. If you're someone who likes to get into the detail, spot issues early and create clarity from complexity, you'll fit right in. You will support Project Managers in delivering projects on time and within budget through rigorous attention to detail and the application of Amentum's project controls processes and best practice techniques. Core Project Controls: Applying project controls processes and systems Project set up, close out and reconciliations Ensuring accurate cost allocation Cost forecasting and financial analysis Monitoring revenue and gross margin Ensuring corporate systems accurately reflect project status Monitoring aged debt and supporting recovery Preparing client specific monthly reports Producing internal reporting for Operational Project Reviews Contributing to and/or attending monthly project meetings Supporting bids and proposals Supporting Project/Programme Managers with: Earned value analysis Risk and opportunity management Programme and resource monitoring Preparing change control and early warning notices Maintaining quality documentation Monitoring key performance indicators ESSENTIAL: A positive, proactive can-do attitude, with the confidence to take ownership and solve problems High confidence using Excel - including formulas, lookups, pivot tables, data validation