Senior Mechanical Engineer – Water

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

Job summary

A leading company in water treatment is seeking a Senior Mechanical Engineer in Peterborough. This role involves leading mechanical designs, mentoring junior engineers, and championing innovative and sustainable solutions. With opportunities for home working, this position is ideal for engineers with a strong background in mechanical design and a passion for leadership.

Qualifications

• Chartered status or working towards it preferred.
• Proven experience in mechanical design.
• Strong understanding of health and safety legislation.

Responsibilities

• Lead and review mechanical designs for compliance and performance.
• Collaborate with stakeholders to achieve project goals.
• Promote sustainability and drive Health & Safety in design.

Skills

Leadership

Mentoring

Collaboration

Communication

Education

Degree in Mechanical Engineering

Tools

CAD software

Engineering 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.