Lead Mechanical Design Engineer, Water Infrastructure (UK)

MWH Treatment; Hattersley; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

MWH Treatment is seeking a Principal Mechanical Design Engineer to lead complex mechanical designs for UK water and wastewater projects. You will provide technical leadership across multidisciplinary teams, drive safe and compliant solutions, and support major bids while mentoring engineers.

You will own design governance and contribute to engineering excellence, with flexible working within the UK. Chartered status is desirable for future progression.

Qualifications

• Degree qualified in Mechanical Engineering (BEng, MEng or equivalent).
• Significant experience delivering mechanical engineering designs within the UK water and wastewater sector.
• Strong understanding of water and sewage treatment processes and associated mechanical systems.
• Experience leading multidisciplinary engineering design projects.
• Knowledge of pumping systems, pipework design, valves, treatment process equipment, sludge handling systems and associated mechanical infrastructure.
• Ability to develop practical, efficient and economical engineering designs and plant layouts.
• Good understanding of related engineering disciplines including civil, electrical, process engineering and project management.
• Strong technical judgement and problem-solving abilities.
• Excellent communication skills with the ability to present technical proposals clearly, confidently and convincingly.
• Proven ability to manage competing priorities and deliver quality outcomes to programme.
• Commitment to health and safety, quality and engineering excellence.

Responsibilities

• Lead and coordinate the delivery of complex mechanical engineering designs within the water and wastewater sector.
• Provide technical leadership and guidance across multidisciplinary engineering teams.
• Develop innovative, practical and risk-balanced engineering solutions.
• Ensure all designs are safe, sustainable, compliant, buildable and commercially effective.
• Produce, review and approve mechanical design calculations, specifications, reports, drawings and technical documentation.
• Support major project bids and contribute to successful project delivery strategies.
• Act as a technical reviewer and maintain high standards of engineering governance and quality assurance.
• Manage technical delivery from broad project briefs, balancing programme, cost, quality and resource requirements.
• Identify and manage technical risks, ensuring issues are escalated and resolved effectively.
• Liaise with clients, contractors, suppliers and key stakeholders to deliver successful project outcomes.
• Support and mentor engineers, helping to strengthen technical capability across the business.
• Promote a culture of continuous improvement, innovation, safety and customer focus.

Skills

Leadership

Mechanical design

Technical leadership

Mentoring

Stakeholder liaison

Problem solving

Quality assurance

Education

Mechanical Engineering degree (BEng/MEng or equivalent)

Job description

MWH Treatment is seeking a Principal Mechanical Design Engineer to lead complex mechanical designs for UK water and wastewater projects. You will provide technical leadership across multidisciplinary teams, drive safe and compliant solutions, and support major bids while mentoring engineers.

You will own design governance and contribute to engineering excellence, with flexible working within the UK. Chartered status is desirable for future progression.