Major Projects PMO Cost Lead

Closing Date

2026-01-12

Job Title: Cost Lead

Location: Falmer, hybrid working

Contract Type: Permanent

Hours: 37 hours

Salary: to be discussed at screening stage

Are you ready to take charge of cost strategy for some of the most ambitious infrastructure projects in the region?

About the role

Our Major Projects team is the backbone of delivering critical programmes that shape the future of our business and communities. As the PMO Cost Lead, you’ll set the strategic direction for cost management across a portfolio of high-profile projects. This is your chance to lead a talented team, embed best practices, and ensure financial control and value optimisation throughout the project lifecycle

What you will be responsible for:

• Develop and implement a comprehensive cost management framework aligned to best practices.
• Oversee preparation, validation, and management of portfolio and project budgets, forecasts, and funding submissions.
• Provide expert oversight on Value of Work Done (VOWD) and Estimate to Complete (ETC) forecasts.
• Lead development of Cost Breakdown Structures (CBS) aligned to Work Breakdown Structures (WBS).
• Establish Earned Value Management (EVM) processes and support life cycle costing and value engineering.
• Build and mentor a high-performing cost management team, fostering accuracy, accountability, and innovation.

Additional Requirements

• Strong understanding of cost estimation methodologies, procurement processes, and financial controls.
• Proficiency in cost management software (e.g., CostX, EcoSys, PRISM, SAP, Excel).
• Familiarity with NEC contracts and regulatory reporting requirements.

What you’ll bring to the role:

Essential

• Proven experience leading PMO cost management within large-scale infrastructure or capital programmes.
• Strong leadership skills with a track record of managing and developing teams.
• Excellent analytical, negotiation, and communication skills.
• Strategic thinking with a focus on continuous improvement and value delivery.

Desirable

• Degree in Construction Management, Engineering, Finance, or related field.
• Professional certifications such as AACE, AMP, or AcostE.
• Experience in Earned Value Management and cost assurance techniques.

Southern Water is at the forefront of transforming Britain’s water industry, investing significantly to enhance resilience, sustainability, and service excellence. With £7.8bn planned investment for 2025-30, this is an unparalleled opportunity to join a business committed to delivering a generational shift in the way water services are managed.

You will be joining at a time of significant change, working alongside a highly skilled leadership team with a clear vision for the future. We offer an environment where senior professionals can make a meaningful impact, influence major strategic decisions, and drive long-term value creation

We understand that great talent comes in many forms. If this role excites you and you share our commitment to delivering sustainable solutions for our communities, please apply—even if your experience doesn’t perfectly match every requirement. We’ll support your growth and development.

If this role isn’t quite what you’re looking for but are keen to be contacted about opportunities at Southern Water, you can register your details here: Introduce Yourself (myworkdaysite.com- Introduce Yourself)

Our Commitment to Diversity

We welcome applicants from all backgrounds, identities, and experiences. We do not discriminate based on race, ethnicity, gender, sexual orientation, age, disability, religion, or any other protected characteristic. If you need reasonable adjustments during the recruitment process, please let us know.

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