Company Description ⚡️ About Assystem At Assystem, our mission is to accelerate the energy transition worldwide. With 7,750 Switchers across 13 countries, we combine deep engineering heritage with digital innovation to deliver safe, low-carbon infrastructure. With over 55 years of experience in highly regulated sectors, we are currently ranked second in the world for nuclear engineering and support complex projects from concept to commissioning. Why Join the Community of Switchers? Join one of the top three nuclear engineering companies in the world. At Assystem, your work supports high-profile missions driving the UK's low-carbon future. Your future team operates at the heart of project delivery and financial control, ensuring efficient, compliant, and cost-effective operations across critical infrastructure programmes. Job Description The Job Mission We are looking for a driven individual to support commercial delivery on high-value projects. This role is essential to ensuring financial control and smooth project operations. Your future team will support major nuclear missions from our Bristol office. ⚡️ Manage the order book including creation, tracking and task order acceptance ⚡️ Reconcile hours and expenses to support accurate monthly invoicing ⚡️ Monitor project costs and support adherence to budgetary controls ⚡️ Maintain and update cash flow forecasts and aged debt tracking ⚡️ Ensure project teams have correct booking codes and system access ⚡️ Support reporting to NNB Project Controls Manager and flag risks ⚡️ Assist in budget planning and commercial forecasting activities ⚡️ Collaborate with teams to drive timely and efficient project delivery This role is based in Aztec West in Bristol, working on a hybrid basis (3 days per week in the office). Qualifications Essential Skills Minimum 5 GCSEs (A–C), including English and Maths Experience in project support, coordination, or administration Strong Excel and Microsoft Office Suite proficiency High level of organisational and multitasking ability Excellent written and verbal communication skills Strong numerical skills and attention to financial detail Comfortable working in hybrid project delivery environments Team-oriented with a proactive, solutions-driven mindset ✔️ Desired Skills ✔️ Degree in business, finance, or STEM discipline ✔️ Knowledge of NEC3 contracts or nuclear consultancy projects ✔️ Familiarity with CEMAR or similar project management systems ✔️ Experience with project controls tools or methods (e.g. EVM, PMQ) ✔️ Strong commercial awareness in a technical project context Additional Information Why You Should Apply Join a collaborative and high-performing team delivering one of the UK’s most vital low-carbon missions. Build your career on a landmark programme with opportunities to grow into commercial, project controls, or delivery leadership roles. Benefits Include: ✅ Pension scheme — 8% company / 4% employee contribution ️ 25 days’ annual leave bank holidays option to buy/sell Flexible working options Professional fees reimbursed Employee referral bonus scheme ️ Income protection & 3x salary life assurance Equal opportunity employer — diversity, inclusion, and innovation at our core Additional Information A level of security clearance will be required for this role. Ability to travel Assystem offices and customer sites within UK. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future