Principal Mechanical Engineer - Water

Responsibilities

• Mechanical design for critical water and wastewater assets — from pumping stations to treatment plants.
• Value engineering and buildability improvements that make real‑world impact.
• Feasibility studies, detailed designs, and commissioning support for major infrastructure.
• High‑quality technical outputs including layouts, specifications, datasheets, and P&IDs.
• Equipment sizing and specification across pumps, blowers, valves, screening, dosing, and odour control systems.
• Site investigations and engagement with clients, contractors, and suppliers.
• Achieve compliance with UK water industry standards, health & safety, and environmental requirements.
• Technical guidance, mentoring, and collaboration within multidisciplinary teams.
• Project planning support including scheduling, risk, change control, and forecasting.
• Early integration of constructability and commissioning into design solutions.

• Degree in Mechanical Engineering.
• Professional Membership Working toward or holding chartered status (e.g., IMechE or equivalent).
• Strong understanding of mechanical process‑based systems used in sectors such as water/wastewater/effluent/biomass treatment.
• Knowledge of UK water industry standards, H&S, and environmental compliance.
• Robust understanding of current health, safety and welfare legislation.
• Experience across the project lifecycle within infrastructure or similar complex environments.
• Familiarity with design tools such as AutoCAD, Revit, or BIM (advantageous).

We are an equal opportunities employer and a disability confident employer. We welcome applications from candidates who may not meet all the listed requirements and who may benefit from flexible working arrangements.