Mechanical Design Engineer

Overview

In this role you will develop mechanical designs for water and wastewater assets, collaborating with multi-disciplinary teams to deliver compliant, high-quality solutions. You’ll support design reviews, risk assessments and value engineering, and provide technical input through construction and handover. The position offers exposure to high-impact infrastructure projects in London, with a focus on safety, quality, and continuous improvement. This is a hands-on engineering role with a clear impact on essential water infrastructure.

Pay / Benefits

• competitive salary
• comprehensive benefits package
• long-term career development
• hybrid working
• opportunity to work on complex water infrastructure projects

Responsibilities

• Develop mechanical designs from concept to detailed design aligned with project specs
• Produce technical documents, calculations, schedules, and design reports
• Coordinate with civil, electrical, and process engineering disciplines for integrated designs
• Support design reviews, HAZOPs, risk assessments, and value engineering
• Provide technical support during construction, commissioning, and handover
• Ensure designs comply with health, safety, and environmental standards

Key requirements

• Degree or HNC/HND in Mechanical Engineering (or equivalent)
• Proven experience in water, wastewater, or utilities sector
• Strong understanding of mechanical systems (pumps, valves, pipework, rotating equipment)
• Proficient in AutoCAD; experience with 3D modelling and calculation software
• Excellent communication, coordination, and problem-solving skills
• Proactive with focus on quality and efficient delivery
• CSCS / EUSR Water Hygiene desirable

• communication
• coordination
• problem-solving
• AutoCAD
• 3D modelling
• calculation software

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