Assistant Commercial Manager

Location: London, Manchester, Suffolk

Contract: Permanent, full-time.

Benefits:

• Salary: Circa £47,000 per annum (depending on experience)
• Bonus: 5% annual incentive
• Pension: Up to 7.5% employee / 15% employer contribution
• Leave: 28 days holiday plus bank holidays
• Hybrid Working: Typically, 2-3 days in the office per week, with flexibility based on business needs

Your Impact

You will be joining our SZC Supply Chain Systems, Data, Governance and Performance team as an Assistant Commercial Manager and play a key role in supporting the implementation, support and maintenance of our systems landscape alongside the reporting on one of the UK's most exciting infrastructure projects. Working closely with a Commercial Manager and the wider team, you'll gain hands‑on experience in end‑to‑end procurement process, stakeholder engagement, and commercial governance. This fast‑paced role is perfect for someone who thrives on accuracy, prioritisation, and clear communication, while enjoying being part of a collaborative team that enables and supports both internal and external stakeholders. With exposure to multiple systems, stakeholders and opportunities for progression, this is an excellent step for anyone looking to build a career in commercial management.

Accountabilities:

• Provide support to Commercial managers regarding systems implementations.
• Coordinate, support and direct internal and external specialist teams to maintain existing supply chain systems and to implement identified improvements.
• Manage and oversee system enhancement/access requests to ensure the continued effective operation of supply chain processes and process controls.
• Develop and deploy training materials to support awareness and adoption of Supply Chain processes.
• Lead and coordinate responses to supply‑chain performance queries raised by internal and external stakeholders.
• Interface with Project services, Project controls Finance, HR and other project functions as required to support combined data management and reporting.
• Provide oversight to Supply Chain reporting and prepare monthly reporting prior review with Senior Commercial Manager.

Organisation:

Reporting to Senior Commercial Manager – Systems, data and Performance. Close relationship with 2 Commercial Managers.

Knowledge & Skills:

• Intellectually rigorous – with gravitas to influence senior leaders.
• Technically proficient.
• Engaging and persuasive – the post holder must be seen as an in‑house expert who is able to influence the way in which employees think and behave.
• Excellent written and verbal communication skills.
• Attention to detail.

Qualifications & Experience:

• The post holder should ideally hold graduate/postgraduate qualification(s) related to Supply Chain or a similar professional discipline and have 3+ years experience in a system/performance/data management role.
• Demonstrated ability to develop and manage cross‑functional relationships.
• Demonstrated ability to understand and manage a complex portfolio of responsibilities.
• Demonstrated success in delivering process and system improvements in support of broader business objectives.

Behavioural Competences:

• Humility: Recognise the value brought from different cultures and experiences. Be open to others' points of view and ideas, be willing to debate and to compromise.
• Positivity: Positively challenge poor quality and performance. Identify solutions at the lowest possible level. Encourage others to bring new ideas forward.
• Respect: Value the rules and environment in which we operate. Give and receive feedback with respect. Embrace and engage with new people and ideas.
• Solidarity: One team, working closely together and helping each other. Empowered teams always looking forward. Shared responsibility for delivery of the project outcomes.
• Clarity: Communicate clearly and consistently. Promote collaboration and team alignment. Clearer and faster decision making. Drive simplification at all levels.

When joining Sizewell C, you may wonder why you are contacted by colleagues with an EDF email or see the EDF logo on portals that you access and/or documentation you receive; this is because we have partnered with EDF for the provision of a number of support services whilst we complete a successful transition out of the EDF group. We encourage and embrace diversity and how it can improve our experience and performance at work. It is a requirement that those who join us have the right to work in the UK. Whilst sponsorship may be a possibility that we can explore, we are fully committed to local recruitment where possible, and those already holding the right to work in the UK. To be appointed to this role, you will need to meet the criteria for Security Vetting, which will, ordinarily, require you to have been a resident of the UK for at least three of the past five years.