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Major Projects PMO Cost Lead
full-timeLewes

Summary

Location

Lewes

Type

full-time

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About this role

Closing Date

2026-02-04

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. 

#LI-HM2

#LI-Hybrid 

Other facts

Tech stack
Cost Estimation Methodologies,Procurement Processes,Financial Controls,Cost Management Software,NEC Contracts,Regulatory Reporting,Leadership Skills,Analytical Skills,Negotiation Skills,Communication Skills,Strategic Thinking,Continuous Improvement,Earned Value Management,Cost Assurance Techniques

About Southern Water

We are one of the largest water and wastewater companies in the South East of England and thrive on the passion and hard work of more than 2,000 employees.

Together we supply 532 million litres of drinking water every day to more than two million customers and treat and recycle 717 million litres of wastewater for more than four million customers in Kent, Sussex, Hampshire and the Isle of Wight.

Water is essential to every aspect of our lives and we're proud to be at the heart of managing water and wastewater services. We drink it, cook with it and use it to clean. Our water supply faces big challenges - the population of the South East is growing fast, and climate change is bringing greater risk of droughts and more extreme weather. It’s a future of more people needing water and wastewater services, with less water to go around.

So, together with our customers and communities, we aim to provide a sustainable, high-quality water and wastewater service that helps us create a resilient future for water in the South East.

Find out more about us:

Website: www.southernwater.co.uk

Facebook: www.facebook.com/SouthernWater

Twitter: @SouthernWater

Instagram: @southernwatermedia

We use market research tools to improve our service. For more info, visit: https://www.southernwater.co.uk/our-customers/privacy

Team size: 1,001-5,000 employees
LinkedIn: Visit
Industry: Utilities

What you'll do

  • As the PMO Cost Lead, you will set the strategic direction for cost management across a portfolio of high-profile projects. You will develop and implement a comprehensive cost management framework and oversee the preparation and management of project budgets.

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Frequently Asked Questions

What does a Major Projects PMO Cost Lead do at Southern Water?

As a Major Projects PMO Cost Lead at Southern Water, you will: as the PMO Cost Lead, you will set the strategic direction for cost management across a portfolio of high-profile projects. You will develop and implement a comprehensive cost management framework and oversee the preparation and management of project budgets..

Why join Southern Water as a Major Projects PMO Cost Lead?

Southern Water is a leading Utilities company.

Is the Major Projects PMO Cost Lead position at Southern Water remote?

The Major Projects PMO Cost Lead position at Southern Water is based in Lewes, England, United Kingdom. Contact the company through Clera for specific work arrangement details.

How do I apply for the Major Projects PMO Cost Lead position at Southern Water?

You can apply for the Major Projects PMO Cost Lead position at Southern Water directly through Clera. Click the "Apply Now" button above to start your application. Clera's AI-powered platform will help match your profile with this opportunity and guide you through the application process. You can also learn more about Southern Water on their website.