Senior Engineer - Mechanical - Uk Wide

Mwh Treatment; Greater Manchester; Hybrid; GBP 50,000 - 80,000; Full time

Job summary

MWH Treatment is seeking a Senior Mechanical Engineer to lead mechanical design activities across major water and wastewater projects in the UK. You will deliver robust, buildable solutions that meet client requirements and industry standards while driving asset performance and safety.

You will mentor junior engineers and work closely with Process, EICA, Civil, Structural, Digital and Commissioning teams to ensure integrated delivery and value across the project lifecycle.

Qualifications

• Lead mechanical design tasks to meet standards, budgets and programmes.
• Develop designs, specifications, layouts and documentation for asset performance.
• Produce cost-effective solutions considering life-cycle costs.
• Review outputs for quality and regulatory compliance.
• Mentor juniors and coordinate with cross-disciplinary teams.

Responsibilities

• Lead mechanical design tasks across major projects.
• Develop equipment specs, plant layouts and technical docs.
• Coordinate with Process, EICA, Civil, Structural, Digital and Commissioning teams.
• Identify risks and opportunities for optimisation throughout projects.
• Support selection of equipment including pumps and valves.

Skills

Lead design

Mechanical design

Pumps & valves

Regulatory standards

Mentoring

Education

Bachelor's degree in Mechanical Engineering

Tools

3D CAD

FEA

Job description

We are looking to strengthen our Engineering team with a Senior Mechanical Engineer based at a suitable location within the UK,, with flexible working available.

Are you an experienced Senior Mechanical Engineer ready to help shape the successful delivery of complex water and wastewater infrastructure projects? At MWH Treatment, our Mechanical Engineers play a critical role in developing innovative, efficient and reliable mechanical solutions that help deliver safer, smarter and more resilient water services for our customers and communities.

We are looking for a Senior Mechanical Engineer to lead mechanical design activities across major projects, delivering robust, buildable solutions that meet client requirements, regulatory standards and long-term asset performance objectives.

What you'll be doing

• Lead mechanical design tasks and packages to agreed technical standards, budgets and programmes.
• Develop mechanical designs, equipment specifications, plant layouts and technical documentation that support safe, efficient and reliable asset performance.
• Produce cost-effective mechanical solutions that consider construction, commissioning, operational and whole-life costs.
• Review and assure mechanical design outputs within your area of authority, ensuring quality and compliance with company and industry standards.
• Coordinate mechanical design activities with Process, EICA, Civil, Structural, Digital and Commissioning teams to support integrated project delivery.
• Identify and manage technical risks, design issues and opportunities for optimisation throughout the project lifecycle.
• Support the design and selection of mechanical equipment, including pumps, pipework, valves, treatment plant equipment and associated systems.
• Mentor junior engineers, graduates and apprentices, sharing knowledge and supporting technical development across the team.
• Build strong working relationships with clients, discipline leads, project teams, suppliers and site teams.