Principal Mechanical Engineer

Position

Principal Mechanical Engineer – Scotland (Hybrid work model).

• Prepare feasibility studies, outline design, detailed design and construction support
• Produce plant layouts, design drawings and mechanical plant selection including specifications, WIMES data sheets, valve schedules, equipment schedules, lifting strategies, hydraulic headloss calculations and P&IDs for water projects
• Liaise and collaborate with water and other discipline teams including civil, electrical, process and mechanical engineers nationwide
• Visit sites to carry out surveys and support liaisons with clients, contractors & suppliers
• Lead and contribute to design review meetings such as HAZOPs, HAZIDs, ALMs and SWIFTS
• Act as mechanical lead on projects including WwTW, WTW and infrastructure, supporting the project manager and design lead to deliver the mechanical scope to programme and budget
• Assist the project manager to set realistic programmes and budgets for mechanical projects
• Serve as line manager for mechanical graduate, engineer and senior engineers

You’ll thrive in an inclusive and forward‑thinking environment where your contributions are valued. At AECOM you enjoy a range of core benefits designed to support your future and well‑being, flexible benefits you can customise to suit your lifestyle, access to technical practice networks, AECOM University and volunteering days to accelerate your career development, and a flexible hybrid working model to create a healthy work‑life balance.

We recognise everyone’s circumstances are different and support part‑time or flexible working arrangements.

• A degree (or equivalent) in Mechanical Engineering
• Be a Chartered Engineer with a relevant institution, such as IMechE
• Proven ability to deliver engineering designs, reports, drawings, technical specifications and calculations with confidence and precision
• Hands‑on experience delivering innovative solutions for water and wastewater engineering projects

We celebrate diversity, including neurodiversity, and believe it enriches our team. We welcome applications from all backgrounds and abilities. If you have a disability that requires reasonable accommodation to complete the application process, please contact Reaso All your information will be kept confidential according to EEO guidelines. We are a Disability Confident Employer and will offer an interview to applicants who have a disability or long‑term condition, who meet the minimum/essential criteria for the role.

Please let us know using this email address Reaso if you would like to apply through the Disability Confident Interview Scheme.