Southern Water
Assistant Project Manager
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Assistant Project Manager
Closing Date
13/07/2026
Job Title
Assistant Project Manager
Location
Otterbourne (Hybrid, with travel to the Isle of Wight dependent on operational requirements) Driving licence is essential due to site visits
Contract Type
Fixed-term contract – Ending August 2027
Hours
37 per week
Salary
Up to £42,000 per annum, depending on skills and experience
About The Role
We are seeking an Assistant Project Manager to support Southern Water’s Reservoir Maintenance Programme across Hampshire and the Isle of Wight. A core focus will be aligning Southern Water with the DWI industry standard of 1-, 3-, & 5-year inspections for all service reservoirs.
What You Will Be Responsible For
As Assistant Project Manager, your role will include:
- Ensuring the number of reservoir inspections delivered aligns with programme forecasts.
- Coordinating reservoir maintenance programmes, liaising with Operations and Contractors to:
- Meet governance processes.
- Deliver work on time and to appropriate standards.
- Investigating and inspecting reservoirs, contact tanks, break pressure tanks, and other water storage assets:
- Confirming physical isolation is achievable and complying with network demands.
- Maintaining the highest Health & Safety standards on-site, including:
- Reviewing contractor working practices.
- Evaluating contractor H&S documentation.
- Producing Emergency Isolation Plans, detailing:
- Valve operations.
- Environmental constraints.
- Stakeholder engagement.
- Creating risk assessments, method statements, and Scope of Works (SCOs) for reservoir isolation.
- Managing contractor engagements for small-scale enabling works where required.
- Undertaking additional assignments as directed by project managers.
- Ensuring well-developed processes and documentation:
- Focusing on timely, professional, and persuasive content.
- Validating contractor progress based on project manager directives.
- Identifying and escalating risks to programme deadlines, costs, and quality.
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Requirements
The ideal candidate will have:
- Hands-on experience (preferably in valve operations).
- Strong understanding of water processes or networks.
- Solid IT skills and high levels of organisation.
- Ability to work effectively under tight deadlines and prioritise tasks.
- Experience in a project environment is advantageous but not mandatory.
- Strong operational background will also be valued.
About Southern Water
Southern Water is leading Britain’s water industry transformation, with a £7.8 billion investment commitment for 2025–30. Our initiatives aim to improve resilience, sustainability, and service quality.
You’ll join during a period of strategic evolution, working alongside a high-performance leadership team with a clear vision for the future. Southern Water offers an executive environment, where senior professionals can: ✔ Drive long-term value creation. ✔ Influence major strategic decisions. ✔ Create meaningful impact.
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Our Promise: "At Southern Water, diverse perspectives fuel innovation. While we welcome individuals who haven’t ticked every requirement to date, we recognise you may be our perfect fit. Bring your unique strengths and experiences!"
Explore Other Opportunities
If this role doesn’t align with your interests, you can still register your interest here: Introduce Yourself (myworkdaysite.com)
Our Commitment to Diversity
We are an inclusive organisation, celebrating a broad range of backgrounds, identities, and experiences. Discrimination based on:
- Race
- Ethnicity
- Gender
- Sexual orientation
- Age
- Disability
- Religion
- Or any protected characteristic—will not be tolerated.
If you require reasonable adjustments during recruitment, please let us know.
Additional Information
Premployment requirements for all successful candidates include:
- Proof of identity.
- Confirmation of eligibility to work in the UK.
- DBS criminal record check.
- Verification of employment/education history for the past three years.
We reserve the right to withdraw an offer if the security vetting process is not completed successfully or if minimum security standards are not met.
For the most demanding roles, enhanced security clearance may be required.
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