Principal Mechanical Engineer

Overview

As Principal Mechanical Engineer at Severn Trent Water, you will lead mechanical design for major clean water infrastructure projects and serve as the technical authority across the project lifecycle. You will guide multidisciplinary teams to deliver safe, sustainable and compliant solutions that meet operational needs and budgets. The role focuses on translating feasibility into detailed designs, construction support and handover, with a strong emphasis on engineering excellence. This is a chance to shape essential water infrastructure at scale and contribute to a mission-driven, inclusive workplace.

Pay / Benefits

• 28 days holiday + bank holidays
• annual bonus scheme
• leading pension scheme
• Sharesave
• dedicated training and development
• electric vehicle scheme and retail offers

Responsibilities

• Lead mechanical engineering solutions for water treatment and clean water infrastructure projects
• Act as mechanical engineering technical authority on assigned projects
• Provide technical leadership, mentoring, and support to engineers and designers
• Promote engineering excellence and best practices across project delivery
• Develop mechanical designs for WTW, raw water abstraction assets, reservoirs, pumping stations, and storage facilities
• Progress designs from concept to outline and detailed design stages
• Ensure designs meet objectives, regulatory requirements, budgets, and operational needs
• Collaborate with Process, Civil, Structural, Electrical, ICA, and Operations teams
• Support design reviews, ALM, HAZOP, constructability reviews, and value engineering
• Resolve technical interfaces throughout project development
• Undertake mechanical design reviews and approvals, ensuring compliance with standards and regulations
• Support construction, commissioning, and handover activities

Key requirements

• Degree in Mechanical Engineering
• Chartered Engineer (CEng) status or demonstrable progress towards chartership
• Extensive experience in water treatment and clean water infrastructure projects
• Strong knowledge of UK water treatment processes, assets and standards
• Proven track record delivering outline and detailed mechanical design for complex projects
• Experience leading multidisciplinary engineering teams
• Excellent communication and stakeholder management skills

• communication
• stakeholder management
• leadership
• mechanical design
• HAZOP
• constructability reviews

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