Assistant Project Manager at Sizewell C in Felixstowe, GB, IP10 0DD

Sizewell C is entering an exciting phase of growth as we mature into an independent organisation and continue building one of the UK’s largest and most important energy projects. We are now recruiting for the below position.

Assistant IT Project Manager

Contract Type: Permanent - Office-based with hybrid flexibility (typically 3 days p/w in the office)

Working Pattern: Full time

Location: London/ Ipswich/ Suffolk

Salary: Circa £35,000 - £45,000 depending on experience

Bonus: 5% annual incentive
Pension: Up to 7.5% employee contribution / 15% employer contribution
Holiday: 28 days plus bank holidays

Benefits: Flexible benefits

Closing Date: Thursday 5th November 2026

Impact

As Assistant Project Manager you will be responsible for supporting the delivery of new business capabilities across Sizewell C (SZC) Nuclear New Builds by collaborating with the Project Manager and IT Programme Manager. They will contribute to Information Systems (IS) Projects and drive activities working according to baselined time, cost, and quality expectations.

As Assistant Project Manager you'll be expected to work pragmatically to make risk-based assessment on when to adhere completely to standards, procedures, and delivery methods and when to proposed controlled deviations to maximise the chance of a successful outcome for SZC. You will be expected to share your assessment with the Project Manager and escalate any emerging risks.

The successful candidate will engage actively with SZC Internal Departments to ensure compliance and understanding of business need and requirements.

The boundaries of the role are typically defined by the SZC Digital & IT’s governance structure including policies and procedures related to data management, technology procurement, and project management. The Assistant Project Manager must operate within these boundaries to ensure that their function aligns with regulatory requirements and industry standards.

Principal Accountabilities

• Contribute to the definition, planning, execution, and lead documentation of IS projects to baselined time, cost and quality expectations, according to agreed delivery methods and standards.
• Develop the Project Initiation Document for Sponsor sign off that ensures effective estimation of cost, timescales, and resource requirements, including a detailed Quality Plan to create a ‘contract’ of expectations with the Project Sponsor.
• Collaborate with delivery Partners to ensure that they submit robust and realistic detailed project plans to the Project Manager and support the review to enable critical path analysis, ensuring action is taken where these deviate from agreed tolerances, that resources are assigned to tasks for an optimum project delivery model, and that dependencies on other projects or external milestones are actively managed.
• Support with the assurance and oversight of the effective management for project workstreams to agreed quality criteria throughout the project lifecycle including detailed design, build, test, technical cutover, training, communications, business readiness, deployment, post go-live support and project closure.
• Support the management of project progress, scope, budget, risks, issues, resources, dependencies, stakeholders, vendors, and requirements throughout the project lifecycle, escalating to the Project Manager or Project Sponsor, as appropriate.
• Support with the assurance of delivery Partners complying with agreed standards, procedures and delivery methods and ensuring commitments are identified, agreed, and delivered without impacting the project quality criteria.
• Support with the assurance of the provision of accurate and timely reporting to the Project Board, PMO and SZC senior management as required.
• Support with the assurance of the development and execution of a stakeholder engagement plan to manage relationships, ensuring buy-in, timely involvement and commitment of key stakeholders.
• Interface with other members of the Portfolio delivery team to continuously identify and share the use of best practice.

Dimensions

The Assistant Project Manager reports into the Project Manager. They will work on multiple IS projects / programmes of any duration, complexity, criticality, and size (a typical project will fall between £50k and £15m and up to multiple years in duration).

Knowledge, Skills, Qualifications & Experience

• Prepare and deliver workshops with groups of stakeholders, to convey information, facilitate discussion, elicit information, and reach consensus.
• Knowledge of conducting assurance reviews for stage containment.
• Collaborate with and indirectly influence third parties to perform to required standards and expectations.
• Scope clear project outcomes where objectives are not clearly defined or understood by stakeholders.
• Adapt and show resilience to constantly changing requirements in a time driven environment.
• Identify and raise projects, proposing mitigation actions.
• Actively drive collaboration forward across a programme of work with multiple delivery partners.
• Understanding of Project Delivery Governance & Assurance
• Excellent team player.

Qualifications & Experience

• Understanding of programme and project management basics and methodologies, e.g., Prince2, Managing Successful Programmes (MSP) or equivalent.

Desirable

• Experience of delivering IS projects within regulated industry.
• Full project lifecycle experience
• Prior experience working in Nuclear, asset intensive and/or Safety Critical industries.
• Good technical IT knowledge.

Why Join Us

• A major infrastructure project with national impact
• Hybrid working with flexibility built in
• Competitive salary, bonus and benefits
• Clear progression and development opportunities
• Supportive, collaborative team environment

Behavioural Competences

Humility

• Recognise the value brought from different cultures and experiences.
• Be open to other’s 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 the project outcomes.

Clarity

• Communicate clearly and consistently.
• Promote collaboration and team alignment.
• Clearer and faster decision making.
• Drive simplification at all levels.

If this sounds like the next step in your career, we’d love to hear from you. Apply today!

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.

At Sizewell C 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.