Principal Mechanical Engineer – Water Sector

Overview

As Principal Mechanical Engineer at Stantec, you will lead the mechanical design across water and wastewater projects, from feasibility to commissioning. You’ll guide technical delivery within a cross‑functional team and mentor engineers to build capability. The role focuses on delivering innovative, compliant solutions that improve asset resilience and environmental performance. This position offers leadership growth within a prominent UK engineering consultancy and the Midlands market.

Pay / Benefits

• competitive salary
• bonus schemes
• enhanced pension plan
• private medical insurance
• group income protection & life assurance
• hybrid/flexible working

Responsibilities

• Lead mechanical design across water and wastewater treatment works, pumping stations and related infrastructure
• Deliver projects from feasibility through detailed design, construction support and commissioning
• Produce and review calculations, specifications, reports and engineering documentation
• Provide technical leadership across multidisciplinary teams to ensure quality and consistency
• Mentor and develop engineers and support their technical growth
• Collaborate with clients, PMs, contractors and supply chain partners to achieve outcomes
• Contribute to business development, framework delivery and continuous improvement initiatives

Key requirements

• Degree qualified in Mechanical Engineering
• Chartered or Incorporated Engineer (CEng/IEng) or actively pursuing
• Strong experience delivering detailed mechanical design in the UK water sector
• Experience leading technical delivery across multidisciplinary projects
• Excellent understanding of water and wastewater treatment processes and related systems
• Experience mentoring engineers and developing technical capability
• Strong client-facing, communication and stakeholder management skills
• Experience working with contractors and delivery partners

• client-facing communication
• stakeholder management
• mentoring/methodical coaching
• mechanical design for water/wastewater infrastructure
• technical leadership across project lifecycles
• ability to deliver feasibility to commissioning

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