Job Description Sizewell C. The power of good for Britain. Assistant HV Project Manager Location: Sizewell C, Leiston, Suffolk (5 days a week onsite). Contract: Permanent, full-time. Salary: £50,00 - 55,000 depending on experience, plus benefits. Closing date: Wednesday 3 September 2025 About the Role We’re looking for a highly motivated Assistant HV Project Manager to join our Site Operations Team. This role supports the mobilisation of early services and also the transition to full service provision and Operation and maintenance. You’ll work closely with the Project Managers and Principal Contractor team to ensure all activities are executed safely, efficiently, and in line with project goals. Key Responsibilities: Support the HV Project Manager in delivering NEC ECC HV Projects, including: 132kV Substation build and 132kV cable route Construction Electricity Supply (CES) Package Substations & 11kV network Assist with project coordination, scheduling, documentation, and stakeholder communication Monitor project progress, timelines, and budgets, providing regular updates Support monthly project reviews with the Senior Leadership Team Assist with: Commercial and financial tasks Programme, risk, change control, and quality management Resource scheduling and material call-offs Site safety tours and compliance What You’ll Bring: Experience & Skills: Proven experience in large infrastructure or utility projects Familiarity with NEC ECC Option A contracts Experience with DCO-constrained projects Proficiency in: P6 Programme Management Microsoft PowerBI, PowerApps, SharePoint CEMAR software experience Core Competencies: Excellent time management and prioritisation Strong communication skills – both verbal and written Collaborative team player with strong interpersonal and influencing abilities Understanding of GDPR and confidentiality protocols Why Join Us? This is a unique opportunity to contribute to a national mega project that will shape the UK’s energy future. You’ll work in a collaborative, fast-paced environment where your leadership and expertise will make a tangible impact. Ready to take the next step in your career? Apply now and be part of something extraordinary.