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Assistant Project Manager

Job in Rickmansworth, Hertfordshire, WD3, England, UK
Listing for: Pertemps Thames Water
Full Time position
Listed on 2026-01-20
Job specializations:
  • Management
    Operations Manager
Salary/Wage Range or Industry Benchmark: 47000 GBP Yearly GBP 47000.00 YEAR
Job Description & How to Apply Below
This is an opportunity to progress your career and join our team, as we invest to upgrade our infrastructure to enhance the business’s environmental credentials.

We are committed to building a better future, improving water quality and driving green initiatives. For the right candidate, you will receive ongoing training, coaching and support, with good career development prospects. We are looking for a collaborative, self-starter, with infrastructure project experience to join our London Infrastructure Major Projects team.

Apply now!!

What you’ll be doing as an Assistant Project Manager

Providing Project Managers with support to deliver project outcomes for our current 5 year AMP and on a future portfolio of projects.
Drive project delivery to time cost and outcome through the stage gate process.
Delivering successful technical solutions that provide optimal value for money on a capital and whole-life cost basis.
Performance managing the service providers to ensure out-performance of service levels and value for money.
Establish and continuously promote a proactive health, safety & environment culture across projects.
Leading a customer-focused culture that is unrelenting in its pursuit of excellence in service delivery to internal and external customers.
Proactively ensuring every customer touch point is a positive experience to remember.
Actively protecting, managing, and enhancing Thames Water’s reputation to external customers and stakeholders.

Location - This hybrid role is based from our Maple Lodge Offices. You will need to attend both the office and various operational sites as required for the position and business need, which will be around two days a week.

Hours - The work schedule is 36 hours a week, Monday to Friday.

A driver's license and access to a vehicle are required for this position.

To thrive in this role the essential criteria are:

Project experience from significant infrastructure projects, ideally within the water and waste sector.
Organised, resilient and tenacious, with proven experience of managing the performance of third-party service providers and contractors.
Project Management skills, attention to detail and precise.
Collaborative approach, good communication skills with contractors and stakeholders.
A self-starter, with a willingness to come forward and take responsibility.
Continuous promotion of proactive health, safety & environment culture.
Experience in proactive management of project risk.
A strong customer service ethic, measurement of customer satisfaction and a proven track record of delivering improvement for customers.

Additional skills and experiences would be great to have/bring:

Previous water or utilities experience.

What’s in it for you?

Competitive salary from £39,500 to £47,000 per annum based on experience.
26 days holiday per year increasing to 30 with the length of service (plus bank holidays)
Performance-related pay plan directly linked to company performance measures and targets.
Generous Pension Scheme through AON.
Access to lots of benefits to help you take care of you and your family’s health and wellbeing, and your finances – from annual health MOTs and access to physiotherapy and counselling, to Cycle to Work schemes, shopping vouchers and life assurance.

Find out more about our benefits and perks

Who are we?

We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It’s a big job and we’ve got a long way to go, so we need help from passionate and skilled people, committed to making a difference and getting us to where we want to be in the years and decades to come.
Learn more about our purpose and values

Working at Thames Water

Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you’ll enjoy
meaningful career opportunities, flexible working arrangements and excellent benefits.

If you’re looking for a sustainable and successful career where you can make a…
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