Cost Management Lead

Sizewell C Limited; Ipswich; On-site; GBP 90,000 - 140,000; Full time

Job summary

Sizewell C Limited seeks a Cost Management Lead to drive the cost control strategy for the Civil Works Alliance (CWA) supporting Sizewell C. You will lead estimation, baselining, forecasting and reporting, ensuring alignment with schedules and risk registers while managing cost implications across the alliance.

The role requires 10+ years in cost management on major infrastructure or energy projects, with at least 3 years in nuclear contexts, and hands-on use of Ares Prism, EcoSys, SAP and

Qualifications

• 10+ years in cost management on major infrastructure or energy projects.
• Minimum 3 years in nuclear or highly regulated environments.
• Proficiency with cost control tools: Ares Prism, EcoSys, SAP and Primavera.
• Strong analytical, communication and stakeholder engagement skills.
• Collaborative, results-driven with focus on operational excellence.
• Experience leading and motivating teams in multi-stakeholder settings.

Responsibilities

• Lead cost estimating, baselines, control, forecasting, change and risk cost impact management.
• Establish baselines aligned with schedules, risk registers and WBS.
• Quantify cost impact of scope changes, design modifications and risks.
• Integrate cost risk analysis with the project risk framework.
• Monitor contractor cost performance and validate claims.
• Develop dynamic cost forecasts, scenario modelling and benchmarking.
• Produce cost reports for regulators, stakeholders and funding bodies.
• Implement cost control systems and support monthly reviews.
• Ensure compliance with nuclear industry reporting standards.
• Champion digital tools and automation in cost management (Oracle Primavera Unifier, BIM).
• Lead and empower teams to deliver HSE and Nuclear Safety agendas.
• Build relationships with stakeholders and act as trusted advisor.
• Inspire and develop team members with high motivation and alignment.

Skills

Cost management

Cost control

Stakeholder management

Team leadership

Tools

Ares Prism

EcoSys

SAP

Primavera

Job description

Cost Management Lead Opportunity with the Civil Works Alliance (CWA), Supporting Sizewell C

As part of the CWA (Civil Works Alliance), you will support the building of Sizewell C. Sizewell C will be a 3.2-gigawatt power station generating low-carbon electricity for around 6 million homes and will play a key role in our energy future, supplying reliable, clean electricity for at least 60 years.This role will be within theCWA Wide Section.

What will you do?

We are recruiting for a Project Controls Cost Management Lead to join the Civil Works Alliance (CWA), supporting the delivery of Sizewell C – a landmark 3.2-gigawatt power station that will supply low-carbon electricity to around 6 million UK homes. This is a career-defining opportunity to shape the future of clean energy, working on one of the UK’s most high-profile and complex infrastructure projects.

As Project Controls Cost Management Lead, you will play a pivotal role in ensuring the successful delivery of the Civils Programme for Sizewell C. Reporting directly to the Head of Project Controls, you will be responsible for implementing and driving our cost management strategy across the alliance, supporting the Programme Management Office (PMO) and influencing project outcomes at every stage.

Key responsibilities include:

• Leading cost estimating, cost baseline, cost control, forecasting, change and risk cost impact management, and cost reporting activities
• Establishing and maintaining rigorous cost baselines aligned with project schedules, risk registers, and work breakdown structures
• Quantifying and managing the cost impact of scope changes, design modifications, and emerging risks
• Integrating cost risk analysis with the wider project risk framework
• Monitoring contractor and subcontractor cost performance, validating claims and identifying variances
• Developing dynamic cost forecasts, scenario modelling, and benchmarking against industry standards
• Producing transparent, timely, and accurate cost reports for regulators, stakeholders, and funding bodies
• Implementing robust cost control systems and supporting monthly reviews and project control boards
• Ensuring compliance with nuclear industry reporting standards and financial governance protocols
• Championing the use of digital tools and automation in cost management, including Oracle Primavera Unifier and BIM integration
• Leading and empowering teams to deliver on HSE and Nuclear Safety agendas, and promoting a culture of continuous improvement, innovation, and digital engineering
• Building and maintaining effective relationships with a diverse range of stakeholders, acting as a trusted advisor to the client and the wider project team
• Inspiring and developing team members, ensuring high levels of motivation, engagement, and alignment across the alliance

This is a unique opportunity to be part of a diverse and inclusive leadership team, delivering a project that will have a lasting positive impact on the UK’s energy future.

What are we looking for?

• At least 10 years’ experience in cost management on major infrastructure or energy projects, including a minimum of 3 years within nuclear or highly regulated environments
• Proficiency in cost control tools such as Ares Prism, EcoSys, SAP, and Primavera
  Strong analytical, communication, and stakeholder engagement skills
• A collaborative, results-driven approach with a passion for operational excellence and continuous improvement
• Experience of leading and motivating teams within complex, multi-stakeholder project environments

What we will offer you?

The CWA is a single delivery organisation made of up of the client (Sizewell C) and three parent companies - Balfour Beatty, Bouygues and Laing O'Rourke - which offer industry leading packages including market leading salaries, generous annual leave entitlements, pension scheme and other flexible benefits.

About Us

The CWA celebrates the creativity and innovation that comes from a diverse workforce, and we welcome applications from people of all backgrounds — especially those from under‑represented communities. Our project is built on five core values: Humility, Positivity, Respect, Solidarity, and Clarity.
By joining us, you’ll be encouraged to bring your whole self to work, speak up, and share your ideas. We encourage applications from all suitably qualified candidates, regardless of gender, race, disability, age, sexual orientation, gender reassignment, religion or belief, marital status, or pregnancy and maternity.
We are committed to protecting your privacy. If you decide to apply, please avoid including sensitive personal data in your CV.