Organisational Design Lead

Organisational Design Lead

Reporting to - Head of People Strategy and Governance

Human Resources

Location:  London with travel to Suffolk Sizewell C locations | Hybrid working (2-3 days per week onsite) 

Salary - £90,000 per annum, depending on experience

Bonus - 10%

Car allowance - £6900

Private medical insurance - plus partner and children

Holiday - 28 days plus bank holidays

Pension - contributory up to 7.5% employee/15% employer

Closing date:  Wednesday 18th March 2026.

Shape the organisation behind one of the UK’s most important infrastructure projects

Sizewell C is moving from ambition into delivery. Following Final Investment Decision, we are building not just a nuclear power station, but a future-ready organisation that will operate under intense regulatory, public and political scrutiny for decades to come.

This is a rare opportunity to sit at the heart of that challenge.

As Organisational Design Lead, you will work directly with the Executive Leadership Team to translate strategic intent into a coherent, efficient and resilient organisation. You will set the design standards, challenge assumptions, and ensure the structure we build is fit for a complex, multi-phase nuclear programme and long-term operations. This role carries real influence, real accountability and real impact.

What you’ll be responsible for

Strategic leadership

• Lead enterprise-wide organisational design and operating model development across all phases of the Sizewell C programme.
• Hold senior leaders to a clear and consistent set of design principles, preventing organic, fragmented growth.
• Drive delivery of agreed organisational changes, ensuring structures align to strategy, budget and delivery timelines.
• Establish and embed clear organisation design rules, with success measured by clarity, efficiency and zero duplication or gaps.

Organisational design & operating models

• Review current structures to identify efficiency opportunities, capability gaps and future requirements.
• Design and maintain role frameworks, job families and capability architectures aligned to a regulated nuclear environment.
• Lead workforce modelling, scenario planning and analytics to support long-term workforce planning and transition decisions.

Change and transition

• Design organisation transition plans including people impacts, risk assessment and mitigation strategies.
• Work closely with Transformation teams, Programme Directors and HR colleagues to land change effectively.

Data-led decision making

• Build and maintain organisation design dashboards, metrics and governance forums.
• Use digital organisation design and workforce tools to provide clear insight on structure, cost, capacity and capability.

Senior stakeholder engagement

• Act as a trusted advisor to Executive and senior leaders.
• Facilitate design workshops, governance boards and cross-functional reviews that lead to clear decisions and outcomes.

Nuclear safety

This role carries nuclear safety responsibilities, with accountabilities defined within the Nuclear Baseline. Your work will directly influence organisational effectiveness, assurance and compliance.

What we’re looking for

Essential

• A strong track record of leading organisation design and change at senior or executive level.
• Experience operating in large, complex or highly regulated environments.
• Deep expertise in organisation design, operating models and workforce planning.
• Strong analytical capability, including scenario modelling and evidence-based decision making.
• The confidence to challenge, influence and hold senior leaders to account.
• Excellent communication, facilitation and stakeholder management skills.
• Resilience and credibility in high-pressure, high-scrutiny environments.

Desirable

• Experience in major infrastructure or large-scale transformation programmes.
• Exposure to nuclear, energy or similarly regulated sectors.
• Professional HR or organisational design qualification.
• Experience using digital organisation design and workforce analytics tools.

Why join Sizewell C?

You will be designing an organisation that matters. One that must deliver value for money, meet the highest regulatory standards and support the UK’s long-term energy security. Few roles offer this level of access, influence and legacy.

If you want to shape the organisation behind one of the most significant infrastructure projects of our time, we would like to hear from you.

Apply Now!

If you are an exceptional leader who thrives in complex environments and are passionate about shaping the future of work, we’d love to hear from you.