Assistant Project Manager

hackajob is collaborating with Southern Water to connect them with exceptional professionals for this role.

Closing Date

04/08/2026

Assistant Project Manager

Location: Isle of Wight and Hampshire- Hybrid based on operational requirement
Contract Type: Permanent
Hours: Full time
Salary: Up to £45K per annum
Additional Requirements: Regular site visits required across the Southern Water region. A full UK driving licence is essential.

About the role

Southern Water is looking for an Assistant Project Manager to join our Capital Delivery team.

This is an exciting opportunity to support the delivery of high-profile water infrastructure projects. These projects help shape the future of water services and support reliable, sustainable outcomes for our customers and communities.

Capital Delivery plays a key role in planning, managing and delivering large infrastructure projects across the Southern Water region. These projects help us meet regulatory requirements, improve services and protect the environment.

You will work with Project Managers, Delivery Partners, operational teams and other key stakeholders. You will help make sure projects are delivered safely, on time, within budget and to the right quality standards.

What you will be responsible for:

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• Support the delivery of water infrastructure projects through regular site visits, monitoring progress against programme, recording key project metrics and providing accurate reporting updates.
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• Promote safe, compliant and high-quality project delivery by monitoring health and safety, environmental performance, water quality and customer experience across project sites.
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• Assist with project planning and controls, including risk management, Early Warnings through CEMAR, progress meetings, shutdown planning and stakeholder communications.
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• Build strong working relationships with delivery partners, operational teams, customers, landowners and other stakeholders to support successful project outcomes and resolve site issues.
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• Support project governance and handover activities, including construction assurance, review of project documentation, asset integration and completion of project close-out requirements.
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What you’ll bring to the role:

Essential

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• A full UK driving licence, as the role is around 70% site based.
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• Strong organisational skills and the ability to record clear, accurate project information.
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• Good communication skills, with the confidence to work with site teams, customers, operational colleagues and delivery partners.
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• A proactive approach to health, safety, environmental performance and customer experience.
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• An interest in project delivery, construction, infrastructure or utilities.
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Desirable

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• Experience supporting project or programme delivery within water, utilities, infrastructure or construction.
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• Experience working on site-based construction or engineering projects.
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• A project management or construction-related qualification.
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• Certifications such as APM, IOSH or EUSR.
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• Experience using CEMAR or similar project management systems.
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Progression opportunities

This role offers a strong development opportunity for someone looking to grow their project management career.

You will gain hands-on experience across planning, site delivery, risk management, stakeholder engagement, reporting and asset handover. You will also work closely with experienced Project Managers and multidisciplinary teams across Capital Delivery.

About Southern Water

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 professionals can make a meaningful impact, influence major decisions and support long-term value creation.

Our commitment to inclusion

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 does not perfectly match every requirement. We’ll support your growth and development.

If this role is not quite what you are looking for but you are keen to be contacted about opportunities at Southern Water, you can register your details here: 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.

Additional information

In line with Southern Water’s security requirements, successful candidates will be required to provide evidence of their identity, eligibility to work in the UK, criminal record check and verification of their employment and/or education history for the past three years.

Appointment to this role is subject to the successful completion of all pre-employment checks, including security vetting.

Please note that if a candidate does not meet the required security standards or fails to pass the vetting process, Southern Water reserves the right to withdraw the offer of employment. Some positions may also require higher levels of security vetting, which may involve providing additional documentation.