Water jobs in United Kingdom

Here within the @one Alliance we are a totally collaborative organisation made up of our seven partner companies (Anglian Water, Balfour Beatty, Barhale, MMB, MWH Treatment, Skanska and SWECO) and our extended supply chain, delivering over half of Anglian Water’s capital investment programme. We are now in our most exciting and challenging Asset Management Period yet, known as AMP8, this will see us deliver a programme of work larger than we’ve ever delivered before. We’ll be embarking on a new kind of project delivery focusing on nature-based solutions like wetlands and urban drainage schemes. We are driving change, empowering us to set global benchmarks and build a better environment, with the opportunity to offer enhanced growth and development to our workforce. We’re looking to build on our existing teams with an environment built for career progression. With such an exciting portfolio of projects planned for AMP8 to keep the water flowing across the region, our ability to manage our work and outperform against our customer’s expectations will come under greater scrutiny. With a continued expectation to provide the highest standards of project design whilst ensuring we use innovation and creativity to deliver more with less, we are looking for a Principal Mechanical Engineer to join our large and dynamic team.

What will you be doing as our new Principal Mechanical Engineer? As our Principal Mechanical Engineer, you\'ll lead the Senior Mechanical Engineers in designing and delivering cutting-edge value driven mechanical engineering solutions that adhere to water quality standards while reduce carbon, enhance natural capital, and embrace the challenges of climate change.

• Foster innovative ways of working to achieve sustainable outcomes rather than outputs.


• Represent the @one Alliance as the mechanical engineering authority, providing expert guidance on quality and compliance issues.

• Develop procedures, standards, and guidance to achieve a "right-first time" philosophy.


• Support the mechanical design team in delivering complex projects with suitable resources and methods.


• Provide direction and guidance to the team in appropriate design methods and assets.


• Collaborate with suppliers to ensure competency and performance and manage supplier frameworks.


• As part of the asset standards governance process identify, support, implement and approve standard products for delivery efficiency and consistency in projects.

• Support the identification of value-driven solutions at Stage 1 of projects.


• Conduct audits (internal and externa) to ensure compliance with quality standards and specifications.


• Lead the resolution of non-compliance issues, competency gaps, and procedural improvements.


• Offer expert direction for complex design challenges and stakeholder engagement.

• Drive excellence in compliance with CDM regulations, ensuring safe and compliant designs.


• Conduct audits on mechanical safety standards (e.g., HAZOP, DSEAR) and lead improvements.


• Proficiency and application of Regulation 31 in relation to mechanical assets in water projects

• Provide technical leadership, mentoring, and career guidance to the mechanical engineering team.


• Champion professional development and qualifications while fostering an inclusive, respectful, and diverse environment.

• Inspire a culture of experimentation, safe failure, and continuous improvement.


• Lead the introduction of new technologies and techniques to advance performance and sustainability.

To thrive in this role, you’ll need a strong background in mechanical engineering, preferably within water treatment or similar industries. Proven leadership experience, with the ability to inspire teams and drive innovation. A deep understanding of sustainability principles, including reducing carbon and protecting natural capital. Excellent communication, collaboration, and stakeholder engagement skills, and a passion for mentoring, professional development, and fostering a positive workplace culture.

At the Anglian Water’s @one Alliance, we are committed to fostering a diverse and inclusive workplace where every individual feels valued, respected, and empowered to contribute their unique perspectives and talents. We believe that diversity enriches our team, fuels innovation, and drives success. We welcome applicants from all backgrounds, experiences, and identities, and actively encourage individuals from underrepresented groups to apply. We are dedicated to creating an environment free from discrimination and bias, where everyone has equal opportunities for growth and advancement. Join us in creating a culture where diversity is celebrated, and inclusion is the norm.

Alongside this we want to ensure that all candidates have an equal opportunity to showcase their abilities during the interview process. If you require any specific accommodations or adjustments due to a disability or any other individual circumstances, please do not hesitate to let us know.

A collaborative alliance, driving change. Empowering us to set global benchmarks and building a better environment for our customers. We strive to:
Empower our people; Delight our Customers; Embrace digital transformation; Deliver brilliance.

To bring environmental and social prosperity to the region we serve through our commitment to Love Every Drop we:
Build trust; Do the right thing; Are always exploring

The Anglian Water @one Alliance. Eight partners, endless opportunities.

Closing date: 23 September 2025