Job Description Are you an experienced Cost Engineer looking for your next challenge in a dynamic and growing defence environment? Assystem is seeking a self-motivated, proactive professional to join our expanding Defence account and play a key role in the delivery of high-impact projects. Your future team: As a Cost Engineer, you will be the go-to expert for monitoring and reporting on project cost data across our Defence portfolio. Working closely with Project Managers, you’ll help shape cost control strategies, deliver accurate financial tracking, and ensure efficient project execution. This role is based at any of our UK Assystem offices, with occasional travel to client and other Assystem sites as required. Our flexible working model supports a healthy balance of home and office working. Your missions: Plan and prioritise workload to ensure project scope, time, and cost targets are met. Develop and implement effective cost control strategies tailored to individual project requirements. Set up cost control structures to satisfy both internal and client reporting needs. Monitor budgets, changes, and expenditures; conduct earned value analysis for informed decision-making. Prepare financial information for contract variations to support client discussions. Review and validate vendor payments and subcontractor purchases against project budgets. Track and report on project cash flow and highlight variances. Continuously enhance your cost control expertise to work toward professional accreditation. Why join the community of Switchers? At Assystem, you'll be part of a collaborative, forward-thinking organisation that values innovation and continuous improvement. We offer a flexible working environment, support for professional development, and the opportunity to contribute to some of the UK’s most significant engineering projects. As one of the Top 3 Nuclear Engineering companies in the world, Assystem offer a competitive benefits package which includes: 25 days of annual leave bank holidays 8% company pension contributions Healthcare cash-plan to get money back on dental, medical, physical care Employee assistance programme including 24/7 access to free mental health support, virtual gym classes and more Get professional and industry membership fees paid for.