Job Description Assistant Project Manager (Assistant Design Project Manager) Civil Works | Sizewell C Location: London – full time, minimum 3 days per week in the office Salary: £55,000 depending on experience Bonus: 5% Pension: Up to 7.5% employee / 15% employer Holiday: 28 days plus bank holidays A genuine development role on one of the UK’s biggest infrastructure projects Closing date: Friday the 20th February 2026 If you’re early in your project management career and want more than just another assistant role, this is a standout opportunity. Sizewell C is building the next generation of nuclear power in the UK. It’s complex, high profile, and will operate for decades. That means long-term careers, not short-term projects. As an Assistant Project Manager within our Civil Works team, you’ll be right at the heart of delivery, learning from experienced leaders while taking on real responsibility from day one. This role is designed as a stepping stone. For the right person, there is clear scope to grow into a full Project Manager role as the programme progresses. What you’ll be doing You’ll support the Project Manager in delivering major civil engineering scopes safely, to programme, and to budget. Working within a large, multi-disciplinary team, you’ll gain exposure across the full project lifecycle, from early design and contractor engagement through to delivery. Your work will include: Project delivery and coordination Supporting planning, coordination and monitoring of work packages Organising and documenting meetings with internal and external stakeholders Supporting Multi-disciplinary Teams and Joint Management Team meetings Coordinating technical, commercial, cost and schedule discussions Helping develop project documentation, controls and reporting Project controls and reporting Supporting programme updates, progress reviews and performance reporting Assisting with budget tracking, financial assessments and internal papers Supporting earned value activities Maintaining clear, auditable project records Contracts and supply chain Supporting contract administration activities including early warnings and compensation events Working with design suppliers and the wider Civil Works Alliance Providing input to procurement and commercial teams Risk, quality and safety Supporting risk and opportunity management Contributing to quality reporting and compliance with nuclear standards Promoting a strong nuclear safety culture in everything you do Stakeholder engagement Supporting effective communication across delivery teams and the wider project Helping build collaborative ways of working with partners and regulators What we’re looking for This role would suit someone who is ambitious, curious, and keen to build a long-term career in major projects. Essential Degree in Civil or Structural Engineering, Project Management, or a related discipline Desirable Experience in civil engineering design delivery or project support Exposure to projects from concept through to handover Working towards or interest in chartership (ICE, IStructE, APM) Working in an environment managing third party design companies. You’ll bring strong organisation skills, confidence working with data, and the ability to communicate clearly with a wide range of stakeholders. Most importantly, you’ll be keen to learn, take responsibility, and grow. Why Sizewell C This is not business as usual. You’ll be part of a project backed by government and major investors, delivering low-carbon power to around 6 million homes for at least 60 years. The scale, complexity and visibility are unmatched, and so is the opportunity to build a meaningful career. If you’re looking for a role that will stretch you, develop you, and open doors for the future, we’d love to hear from you.