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Peterborough
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Engineering Design

About The Role

We are looking to strengthen our engineering team with a Principal Mechanical Engineer based at our Peterborough office with hybrid working available

As a Senior Pipeline Infrastructure Engineer, you’ll provide technical leadership, guidance, and assurance on both clean water and water recycling infrastructure projects. Acting as a technical expert in pipeline engineering, you’ll review and approve designs across a wide portfolio, ensuring they are fit for purpose, compliant with legislation, and aligned with the @one Alliance’s standards. You’ll collaborate with a range of stakeholders, mentor junior engineers, and drive innovation to support the successful delivery of AMP8 outcomes.

 

What You’ll Be Doing

  • Lead the review and acceptance of design deliverables, including drawings, models, and calculations, ensuring quality, safety, and compliance with technical standards.

  • Provide specialist input into the design of trunk mains, pressurised and gravity sewers, pumping stations, and associated civil and hydraulic structures.

  • Support programme delivery by coordinating with Project Design Managers, Principal Infrastructure Engineers, and construction teams.

  • Contribute to CDM and commissioning strategy meetings, ensuring health, safety, and welfare are prioritised in design.

  • Offer technical expertise in responding to construction queries and design changes.

  • Promote innovation, sustainability, and digital design practices to enhance performance and reduce carbon.

  • Mentor and support junior engineers, fostering best practice and professional development across the team.

  • Collaborate with cross-disciplinary teams to deliver efficient, cost-effective, and environmentally responsible solutions.

 

About You

We’re seeking a highly motivated and experienced civil or pipeline engineer with proven expertise in infrastructure design. You will ideally have:

  • A degree in Civil, Mechanical, or related Engineering discipline, or equivalent experience.

  • Significant design experience in sewerage systems, trunk water mains, pressurised and gravity pipelines, and associated civil/hydraulic works.

  • Strong understanding of pipe materials, hydraulics, pump stations, reinforced concrete structures, and pipeline protection methods.

  • Knowledge of inter-related engineering disciplines and experience of working within a Design & Build environment.

  • Proven ability to lead technical reviews, manage risk in design, and ensure CDM compliance.

  • Excellent communication and stakeholder management skills, with the ability to influence and collaborate across multidisciplinary teams.

  • A track record of mentoring and supporting engineers in their professional growth.

  • A commitment to innovation, sustainability, and delivering solutions that protect and enhance the environment.

About Us

MWH Treatment is an integrated design and build provider working in the water sector. With over 1400 staff working across eight regional centres, supporting six long-term water sector frameworks and two recently won frameworks, operating both as a sole contractor but also in joint ventures and alliances. 

At MWH Treatment we believe that people matter. We know to build successful, creative teams we need a diverse workforce that can deliver innovative ways of thinking. We provide an environment where you will have the freedom to develop and grow to your full potential, creating opportunity by inviting, embracing, and celebrating difference, our goal as an employer is to motivate, and develop our employees. By fostering a diverse range of talents and perspectives we ensure we have the breadth of viewpoints, experiences, and skills needed to succeed. Embracing diversity of all kinds enables us to provide a work environment and culture that plays a key role in attracting and retaining the right people with the right skills. 

As signatories to the Armed Forces Corporate Covenant, we have made a promise to support our forces, working with the CTP to help ex veterans find work in the civilian world. We also support Mates in Mind, a charitable programme to improve and promote positive mental health in the workplace. We don’t just tick boxes; we live these values every day. 

What MWH offer 

Packages include -  

A competitive salary 

Hybrid Working (Jobs needs dependent) 

Car/car allowance (Jobs needs dependent) 

25 days holiday + Bank Holidays (with an additional 5 days available to buy) 

Contribution Pension scheme 

Life Assurance 

Health Insurance 

Private Medical Insurance 

And many more benefits including – cycle to work scheme, discounts and savings Hub, Kids Pass etc 

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