Senior Mechanical Engineer

2 weeks ago


Peterborough, Peterborough, United Kingdom MWH Treatment Full time £40,000 - £80,000 per year


MWH Treatment is looking to strengthen their Engineering team with a Senior Mechanical Engineer. Based at our office in Peterborough with some home working.

As our new Senior Mechanical Engineer, you'll be at the forefront of designing and delivering innovative water solutions. You'll lead technical delivery, drive sustainable and cost-effective design decisions, and guide junior engineers to deliver work that's safe, future-proof, and built to last.

What You'll Be Doing

  • Lead and review mechanical designs to ensure compliance, safety, and performance excellence.

  • Collaborate with stakeholders to deliver projects on time, within budget, and to high quality standards.

  • Promote the use of digital tools and modular construction techniques.

  • Drive Health & Safety by design, identifying improvements and reducing whole-life costs.

  • Champion sustainability, carbon reduction, and innovation across the design lifecycle.

  • Mentor junior engineers and create a culture of technical excellence and continuous learning.

  • Work closely with project and engineering leaders, contributing to strategic decisions.



About You
  • A degree in Mechanical Engineering (or related discipline).

  • Preferably chartered, or working towards chartered status.

  • Proven experience in mechanical design—ideally in the water sector or similar complex infrastructure environment.

  • Strong understanding of industry standards, health and safety legislation, and construction principles.

  • Leadership experience with a passion for coaching, mentoring and developing others.

  • Proficiency in CAD and engineering software.

  • Confident decision-maker, with a collaborative mindset and strong communication skills.



About Us

MWH Treatment is an integrated design and build solution provider operating in the water sector. We have over 1,000 staff working across eight regional centres, primarily supporting six long term water sector frameworks operating both as MWH Treatment and increasingly in joint ventures and alliances.

At MWH Treatment we create opportunity by inviting, embracing and celebrating difference.

Our goal as an employer is to recruit, motivate, and develop our employees with diverse ranges of talents and perspectives to ensure that we have the breadth of viewpoints, experiences, and skills needed to succeed.

Embracing diversity of all kinds enables MWH Treatment to provide a work environment and culture that play a key role in attracting and retaining the right people with the right skills. 

Living these values and committing to diversity and inclusion supports and enhances our employees and acts as a key differentiator in the market.

We are signed up to the Armed Forces Corporate Covenant in making a promise to support our forces. We are working with CTP to help ex veterans find work in the civilian world.





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