Assistant Project Manager

Thames Water; Dartford; Hybrid; GBP 41,000 - 50,000; Full time

Benefits offered by this job

Salary up to £45,000 per year

26–30 days annual leave plus bank hols

Generous Pension Scheme

Health & wellbeing benefits

Cycle to Work

Job summary

Thames Water is seeking an Assistant Project Manager to lead delivery of projects within a defined area, ensuring contractor performance, on-time, on-budget and to quality. You will drive continuous improvement of the project team and supply chain while enhancing HSE outcomes and customer satisfaction.

The role focuses on planning, developing and delivering projects in line with regulatory and internal standards, with a strong emphasis on whole-life value, risk management and external

Qualifications

• HNC or above in an appropriate subject or significant experience in a similar role.
• Excellent contractual awareness of Project Management work.
• A proven track record of managing the performance of third‑party organisations.
• A proven track record of successfully delivering capital projects.
• Relevant industry and business knowledge.
• Financially capable of running profit & loss, taking account of revenue, expenditure and cash flow to deliver agreed financial goals.
• Strong commercial approach with a good level of contract knowledge.
• Proven process improvement design and implementation capability.
• Can demonstrate a strong external customer service ethic, measurement of customer satisfaction and a proven track record of delivering improvement for internal and external customers.
• A Full UK Driving License is essential.

Responsibilities

• Deliver sustainable financial performance and value for money across projects and contracts.
• Manage all commercial and contractual aspects to secure optimal outcomes for Thames Water.
• Plan, develop and deliver projects that meet all regulatory, statutory and internal requirements.
• Ensure technical solutions provide optimal whole‑life value and meet quality standards.
• Drive high performance from service providers and proactively manage risks, change, and compliance.
• Foster strong external stakeholder relationships to protect and enhance the company’s reputation.
• Lead, develop and support teams within a culture of accountability, innovation, and continuous improvement.
• Promote and uphold best practice in health, safety, environment, sustainability, and project delivery.

Skills

Contract management

Third-party performance

Capital project delivery

Profit & loss

Contract knowledge

Process improvement

Customer service

Driving license

Education

HNC or above in appropriate subject

Job description

As an Assistant Project Manager, you will be the single point of accountability and leadership for the delivery of a Project or Programme of work in a geographical area. This will be achieved by managing and ensuring the performance of contractors to deliver project outcomes on time, cost, and quality.

Driving the development and continuous improvement of the project team and supply chain, relentlessly striving to deliver enhanced health, safety & environment outcomes, customer delight and superior commercial performance.

What you’ll be doing as an Assistant Project Manager:

• Deliver sustainable financial performance and value for money across projects and contracts.
• Manage all commercial and contractual aspects to secure optimal outcomes for Thames Water.
• Plan, develop and deliver projects that meet all regulatory, statutory and internal requirements.
• Ensure technical solutions provide optimal whole-life value and meet quality standards.
• Drive high performance from service providers and proactively manage risks, change, and compliance.
• Foster strong external stakeholder relationships to protect and enhance the company’s reputation.
• Lead, develop and support teams within a culture of accountability, innovation, and continuous improvement.
• Promote and uphold best practice in health, safety, environment, sustainability, and project delivery.

Base location: Hybrid – Lane End (DA28DH)

Working pattern or hours: 36 Hours per week (Monday to Friday)

What you should bring to the role?

To thrive in this role, the essential criteria you’ll need is:

• HNC or above in an appropriate subject or significant experience in a similar role.
• Excellent contractual awareness of Project Management work.
• A proven track record of managing the performance of third‑party organisations.
• A proven track record of successfully delivering capital projects.
• Relevant industry and business knowledge.
• Financially capable of running profit & loss, taking account of revenue, expenditure and cash flow to deliver agreed financial goals.
• Strong commercial approach with a good level of contract knowledge. Bases decisions on a balance of business development and cost control issues.
• Proven process improvement design and implementation capability.
• Can demonstrate a strong external customer service ethic, measurement of customer satisfaction and a proven track record of delivering improvement for internal and external customers.
• A Full UK Driving License is essential.

What’s in it for you?

• Offering a salary up to £45,000 per annum depending on skills and experience.
• Annual Leave: 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 (Please note different T&Cs apply if on secondment)

Assistant Project Manager

Company: Thames Water Salary: £45,000 to £45,000 a year Hours: Full‑time Location: Dartford, DA2 8DH Job type: Permanent Posting date: 11 Nov 2026 Closing date: 24 Nov 2026

Summary

As an Assistant Project Manager, you will be the single point of accountability and leadership for the delivery of a Project or Programme of work in a geographical area. This will be achieved by managing and ensuring the performance of contractors to deliver project outcomes on time, cost, and quality.

Driving the development and continuous improvement of the project team and supply chain, relentlessly striving to deliver enhanced health, safety & environment outcomes, customer delight and superior commercial performance.

What you’ll be doing as an Assistant Project Manager:

• Deliver sustainable financial performance and value for money across projects and contracts.
• Manage all commercial and contractual aspects to secure optimal outcomes for Thames Water.
• Plan, develop and deliver projects that meet all regulatory, statutory and internal requirements.
• Ensure technical solutions provide optimal whole‑life value and meet quality standards.
• Drive high performance from service providers and proactively manage risks, change, and compliance.
• Foster strong external stakeholder relationships to protect and enhance the company’s reputation.
• Lead, develop and support teams within a culture of accountability, innovation, and continuous improvement.
• Promote and uphold best practice in health, safety, environment, sustainability, and project delivery.

Base location: Hybrid – Lane End (DA28DH)

Working pattern or hours: 36 Hours per week (Monday to Friday)

What you should bring to the role?

To thrive in this role, the essential criteria you’ll need is:

• HNC or above in an appropriate subject or significant experience in a similar role.
• Excellent contractual awareness of Project Management work.
• A proven track record of managing the performance of third‑party organisations.
• A proven track record of successfully delivering capital projects.
• Relevant industry and business knowledge.
• Financially capable of running profit & loss, taking account of revenue, expenditure and cash flow to deliver agreed financial goals.
• Strong commercial approach with a good level of contract knowledge. Bases decisions on a balance of business development and cost control issues.
• Proven process improvement design and implementation capability.
• Can demonstrate a strong external customer service ethic, measurement of customer satisfaction and a proven track record of delivering improvement for internal and external customers.
• A Full UK Driving License is essential.

What’s in it for you?

• Offering a salary up to £45,000 per annum depending on skills and experience.
• Annual Leave: 26 days holiday per year, increasing to 30 with the length of service (plus bank holidays)
• Car Allowance
• 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 (Please note different T&Cs apply if on secondment)

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 daily difference to millions of people’s lives while helping to protect the world of water for future generations, we’ll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet.

Real purpose, real support, real opportunities. Come and join the Thames Water family. Why choose us? Learn more.

We’re committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that’s extra time, accessible formats, or anything else just let us know, we’re here to help and support.

When a crisis happens, we all rally around to support our customers. As part of Team Thames, you’ll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly an incredibly rewarding experience. It’s also a great opportunity to learn more about our business and meet colleagues.

Proud member of the Disability Confident employer scheme

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