Senior Mechanical Engineer – Water

MWH Treatment Limited; Peterborough; Hybrid; GBP 40,000 - 60,000; Full time

Job summary

A leading company in water solutions is seeking a Senior Mechanical Engineer to join their team in Peterborough. This role involves leading mechanical design efforts, mentoring junior engineers, and advocating for sustainability within engineering projects. The ideal candidate will have a strong background in mechanical design and leadership within the water sector.

Qualifications

• Chartered status in Mechanical Engineering preferred, or working towards it.
• Proven experience in mechanical design in the water sector or similar.
• Strong understanding of industry standards and health & safety legislation.

Responsibilities

• Lead and review mechanical designs for compliance and performance excellence.
• Collaborate with stakeholders for on-time, budget-compliant project delivery.
• Mentor junior engineers and foster a culture of continuous learning.

Skills

Leadership

Collaboration

Sustainability

Communication

CAD proficiency

Education

Degree in Mechanical Engineering or related discipline

Tools

CAD software

Job description

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.

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.