Senior Mechanical Engineer – Water

Overview

As Senior Mechanical Engineer, you will shape water infrastructure across the UK, contributing to multi-billion-pound capital programmes. You work within a regional water team, collaborating across disciplines to deliver sustainable solutions from feasibility to delivery. You’ll influence design quality, client liaison, and project budgets while supporting innovative frameworks. This role offers exposure to large-scale projects, cross-country collaboration, and meaningful community impact.

Pay / Benefits

• flexible hybrid working
• career development opportunities
• AECOM University
• volunteering days
• well-being programs
• global opportunity and impact

Responsibilities

• Produce feasibility studies, outline and detailed designs plus construction support
• Create design drawings, select and specify mechanical plant
• Collaborate with water, civil, electrical, and process teams nationwide
• Ensure high technical quality, contribute to bids, interface with clients
• Manage design to budget, programme, and quality; assist in budget and programme preparation
• Design mechanical installations (pumping stations, screens, grit removal, penstocks, valves, odour control, piping)
• Conduct site surveys and liaise with clients, contractors, and suppliers
• Develop plant layouts, technical specs, datasheets, valve and equipment schedules, lifting strategies, and P&IDs
• Perform pumping station design, headloss calculations, and pumping system analysis/selection

Key requirements

• Degree in Mechanical Engineering
• Progress towards Chartered Engineer status (e.g., IMechE)
• Knowledge of pump station design, piping design, valve selection, hydraulics
• Proven ability to deliver designs, reports, drawings, specs, and calculations
• Hands-on experience delivering water/wastewater projects

• Collaborative teamwork across multidisciplinary teams
• Client liaison and bid support
• Attention to technical quality and clear communication
• Pump station design
• Piping design
• Valve selection

…