Closing Date 2026-06-18 Job Title: Commercial Manager Location: Falmer (Hybrid Working) Southern Water is looking for a proactive and commercially minded individual to join our Major Projects team as a Commercial Manager. This is a fantastic opportunity to develop your career in infrastructure delivery, supporting the commercial structuring of some of the most exciting and innovative projects in the UK water sector. Internally you will be known as Commercial Lead. Job Overview As a Commercial Manager, you’ll play a key supporting role in the development and delivery of major infrastructure projects, including those delivered through models such as Direct Procurement for Customers (DPC) and Specified Infrastructure Projects Regulations (SIPR). You’ll work alongside experienced colleagues and external partners to help shape commercial strategies that deliver long-term value for customers, the environment, and the business. Responsibilities will include: Support the development and negotiation of commercial agreements, including DBFOM and Bulk Supply Agreements. Assist in shaping commercial models, risk allocation strategies, and payment mechanisms for large-scale infrastructure projects. Contribute to the preparation of internal business cases and project approvals. Help coordinate engagement with external stakeholders including regulators (such as Ofwat), investors, and delivery partners. Work collaboratively with internal teams across Legal, Finance, Regulatory, and Engineering to ensure commercial alignment. Monitor and manage commercial risks and support the delivery of financially efficient outcomes. About You This is a fantastic opportunity for someone with a keen interest in infrastructure and commercial delivery who’s ready to take the next step in their career. Ideally, you’ll bring experience in a commercial, financial, or project delivery role—preferably within a regulated or infrastructure environment—along with a solid understanding of commercial contracts and financial principles. Strong analytical and problem-solving skills, excellent communication and stakeholder engagement abilities, and a degree or equivalent experience in business, finance, law, or engineering will help you thrive. You’ll be joining a supportive, forward-thinking team where you can grow your commercial expertise while contributing to projects that make a real difference to communities and the environment. Package This role will be full time Monday to Friday 37 hours a week. Southern Water operate a hybrid approach to working between our Durrington office and home. We are offering a salary of up to TBC per annum depending on skills and experience as well as other benefits including: • Company and performance-related bonus • Generous pension up to 11% company contribution • 25 days annual leave • Life assurance equal to 4x salary • Salary sacrifice electric car scheme (after 6 months service) • Health Cash Plan • Full funded eye tests • Two paid volunteering days a year • Occupational health service • Discounts with over 800 popular retailers • Digital GP service • Study support may be available for job-related qualifications • Competitive maternity leave and flexible return to work options • Cycle to work scheme Does this opportunity excite you but you’re not 100% sure if you meet all the requirements for the role? Or are you concerned that ‘normal’ office hours aren’t possible given your personal circumstances? Whilst we can’t accommodate every flexible working request, we’ll try to find a practical solution. So why not engage with us and find out more about this role? Our customers are at the heart of everything we do, because delivering water for life is our core purpose. To achieve this, we need 24/7 support in place to resolve incidents quickly and efficiently. All our employees understand the importance of out-of-hours incident support – because when problems appear, fixing them is our top priority. That’s why our people join together and support when and however needed to make sure our customers get the service they deserve. Joining the Southern Water family means you’ll become part of our incident support team. During your interview, your manager will speak to you about any incident support rotas that apply to your position. Privacy Statement: Please note: If you are an existing Southern Water employee, you will need to confirm within your application that your Manager is aware of your application. All applicants must be eligible to live and work in the UK. You will need to provide evidence of eligibility (e.g. a passport or long birth certificate and proof of NI) and current proof of address (dated within the last 3 months), will be required as part of the recruitment process. If you do not meet these criteria, your application will not be considered. #LI-Hybrid #LI-HM2 Our purpose is big. Our impact is huge. And we know that every single one of us has the power, through our actions, to positively change society and the environment for good. It’s why careers with us have real meaning. Because, if you’re driven and ambitious, we can offer you huge opportunities for personal growth, professional development and constant innovation. Forever evolving. Forever focused on doing the right thing, we empower and encourage everyone to play to their strengths and to help us shape a fair and positive future for all. We believe in Water for Life. If you do too, Dive Right In. Our customers are at the heart of everything we do, because delivering water for life is our core purpose. To achieve this, we need 24/7 support in place to resolve incidents quickly and efficiently. All our employees understand the importance of out-of-hours incident support – because when problems appear, fixing them is our top priority. That’s why our people join together and support when and however needed to make sure our customers get the service they deserve. Joining the Southern Water family means you’ll become part of our incident support team. During your interview, your manager will speak to you about any incident support rotas that apply to your position. Does this opportunity excite you but you’re not 100% sure if you meet all the requirements for the role? Or are you concerned that ‘normal’ office hours aren’t possible given your personal circumstances? Whilst we can’t accommodate every flexible working request, we’ll try to find a practical solution. So why not engage with us and find out more about this role?
