Principal Mechanical Design Engineer

Principal Mechanical Design EngineerLocation: London (Hybrid)Employment Type: Full-timeSector: Water & Wastewater InfrastructureAbout the RoleOur client, a leading engineering and design‑build delivery partner in the UK water sector, is seeking a Principal Mechanical Design Engineer to strengthen their mechanical engineering team.

This hybrid role involves delivering high‑quality mechanical design solutions on major water and wastewater projects. Key Responsibilities

• Develop cost‑effective mechanical design layouts meeting specification, safety, and constructability standards.
• Evaluate whole‑life design costs including design hours, material selection, buildability, and cross‑discipline impacts.
• Ensure consistent use of standard design practices across projects.
• Support proposals with engineering estimates and feedback.
• Lead multidisciplinary coordination to ensure fully integrated design delivery.
• Maintain high standards in documentation, customer satisfaction, and safety throughout the design lifecycle. About You
• Demonstrable team‑leadership or line‑management experience.
• Strong understanding of water and wastewater treatment processes.

Mechanical engineering background with the ability to lead complex design work and support staff development If you’re ready to take a leading role in shaping essential water infrastructure projects while working with a forward‑thinking and supportive client team, we encourage you to apply and take the next step in your engineering career.

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