Job Description

The Sizewel C Jobs Service supports local people into exciting, long-term careers across our Project.#SZCJobs

Baseline & Change Manager
Sizewell C

Location: Sizewell C, London (2-3 days per week onsite) with monthly travel to Ipswich, Suffolk.
Contract: Permanent, full-time.
Salary: £80,000- £85,000 per annum depending on experience, plus benefits.
Benefits:
28 days annual leave, rising to 30 days after 5 years, plus bank holidays
Up to 5% annual bonus
Up to 15% employer pension contribution
Flexible benefits package
Hybrid working arrangements
Excellent development and career progression opportunities

Closing Date: Wednesday 12th August 2026.

Help Shape the Future of Clean Energy

Sizewell C is one of the UK's most exciting infrastructure projects, and we're looking for a Baseline & Change Manager to join our growing Project Controls team.

This is a unique opportunity to play a key role in maintaining programme baselines and leading the change management process on a project that will provide low-carbon energy for generations to come. Working across Project Controls, Risk, Cost, Commercial and Delivery teams, you'll collaborate with senior leaders and Civil Works Alliance partners to ensure changes are effectively assessed, governed and implemented across a complex, multi-billion-pound programme.

The Role

Reporting to the Baseline & Change Lead, you'll be responsible for supporting and facilitating the Change Management process, ensuring programme scope, schedule, cost and forecasts remain aligned with approved changes.

Key responsibilities include:

Managing and facilitating the Change Control and governance process.
Supporting Investment Change Committee (ICC) meetings and decision-making.
Managing programme baselines and ensuring approved changes are implemented accurately.
Reviewing and challenging change proposals, assessing impacts on scope, cost, schedule and risk.
Producing high-quality reporting and management information.
Advising Project Managers, Change Owners and Supply Chain teams on change governance.
Driving consistency, compliance and continuous improvement across change management processes.

About You

You'll bring:

Experience in Project Controls, Change Management, Commercial or Programme Management environments.
Strong knowledge of Change Control, governance, baseline management and project controls.
Understanding of Work Breakdown Structures (WBS), Cost Breakdown Structures (CBS), risk and commercial processes.
Excellent communication, facilitation and stakeholder management skills.
The ability to influence and collaborate across large, complex organisations.
Degree-level qualification or equivalent experience.

Desirable Experience

Major infrastructure, engineering or construction projects.
Managing change against approved baselines.
Contract administration and commercial processes.
Power BI or similar reporting tools.
Project Controls software and programme reporting.

Why Join Sizewell C?

Be part of one of the UK's most significant infrastructure projects.
Work with senior leaders and multidisciplinary teams.
Gain exposure to major programme delivery, governance and decision-making.
Enjoy excellent development and career progression opportunities.
Help deliver a project that will power millions of homes for generations to come.

Key Competencies

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 tier 1s and 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.

For this role you must have evidence of right to work in the UK. As a project, we do not discriminate on the grounds of age, gender, race, colour, religion, disability or sexual orientation, and we welcome applications from all sections of the community.