Head of Transformation Portfolio Office

This is a pivotal leadership role within Sizewell C's Corporate Operations directorate as the organisation undergoes significant change and matures into a standalone company, the first independent utility in the UK to build and operate a nuclear power station.

The Head of Transformation Portfolio Office is responsible for designing, implementing and managing a portfolio of strategic transformation projects and programmes across the company, ensuring alignment with SZC's overarching business objectives and long-term growth ambitions. The role focuses on delivering measurable value by prioritising investments, optimising resources and managing interdependencies across initiatives. The Head of Transformation will work closely with senior leaders, project managers and cross-functional teams to provide oversight, track progress, and ensure effective governance and successful transformation delivery.

The Transformation Portfolio Office is a newly formed function in the company, and the Head of Transformation will lead on developing a team and centralised change management capability in SZC.

• Lead the Transformation Portfolio team to deliver SZC's strategies, achieve project outcomes and realise expected benefits, ensuring alignment with organisational goals.
• Develop and maintain a comprehensive strategic Transformation Portfolio, driving prioritisation, resource optimisation and governance to maximise business value and effectively manage risk.
• Oversee and manage the effective delivery of Transformation Programmes, ensuring appropriate structures, resources and processes are in place from concept and business case through to completion and benefit realisation.
• Evaluate and prioritise programmes based on business value, risk and resource availability; optimise resource allocation and resolve conflicts across competing initiatives.
• Monitor Transformation Portfolio health, identify risks and improvement opportunities, and lead periodic reviews with senior stakeholders to provide updates, insights and recommendations.
• Build and maintain strategic relationships across SZC, engaging stakeholders at all levels to understand requirements and ensure alignment.
• Coordinate with project and programme managers and sponsors to ensure effective delivery and benefits realisation, while implementing and improving portfolio management frameworks, standards and tools.
• Provide guidance and coaching on best practices, and prepare clear, concise reports and presentations on portfolio status, risks and outcomes for executive audiences.
• Work closely with executive leadership to shape portfolio strategy and define performance metrics, providing visibility, assurance and escalation to the Executive and governance bodies.
• Develop and implement company-wide standardised frameworks, standards and tools for project delivery and change management.

Knowledge & Skills

Essential

• Strong strategic thinking and analytical capability to drive complex decision-making.
• Excellent communication and stakeholder engagement skills, with proven ability to influence at Executive and Board level.
• Demonstratable leadership and influencing skills across diverse teams and initiatives.
• Advanced proficiency in portfolio management tools and software.
• Experience of working within and challenging and fast-paced organisation.
• Ability to manage multiple priorities and deliver effectively under pressure.
• Practical, solution-focused decision-making approach.
• Expertise in benefits management to ensure value realisation.
• Strong understanding and application of Management of Risk (MoR) principles for effective risk management.
• Expertise in change management.

Desirable

• Expertise in Lean / continuous improvement.
• Familiarity with RAB model financing or complex financing structures.
• Knowledge of the nuclear or energy infrastructure sector.

Qualifications & Experience

Essential

• Educated to degree level.
• Experience mobilising Transformation Programmes or Portfolios.
• Experience of working in a large organisation with multiple stakeholders and/or working in an organisation with multiple geographic UK locations.
• Significant experience in portfolio, project or programme management.
• Significant experience in strategic planning and funding within a complex organisational environment.
• Proven line management experience.
• Experience in business case development.
• Professional Qualifications: Certifications such as MoP (Management of Portfolios), Managing Successful Programmes (MSP), or equivalent are highly desirable.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants.