Principal Mechanical Engineer in Glasgow

Primary Location: UK - Glasgow - 177 Bothwell Street

Start here. Grow here. At AECOM, we boast an impressive and expansive Water Team operating across the globe. With approximately 600 experts sitting in our UK and Ireland Offices, we are constantly evolving to remain at the forefront of innovation, and we’re on the lookout for talented, dedicated and passionate individuals to join us. Our Water Team in Scotland are delivering a diverse and high-impact portfolio of projects that are shaping sustainable and resilient water systems for generations to come.

One of our most recent wins includes Scottish Water’s SR27 Enterprise. AECOM has been named preferred bidder for one of two Primary Designers on this transformational, multi-billion-pound programme. It is the highest value venture ever put into place by Scottish Water and will reshape Scotland’s water and wastewater infrastructure from 2027 to 2033 (with potential to extend for another 6 years). AECOM will be at the heart of this ground-breaking delivery model, shaping design excellence at scale and working with Scottish Water and our Enterprise Partners to help drive outcomes that deliver value for customers in Scotland and go beyond net zero. This is a major win for AECOM and a powerful endorsement of our expertise, giving us a fantastic opportunity to deliver long‑term, meaningful work that has large scale impact for communities across Scotland.

This position offers an unparalleled opportunity to support on this programme and work alongside a talented, diverse team committed to innovation and efficiency. Join our dynamic and multidisciplinary Water Team as a Principal Mechanical Engineer in one of our Scotland offices – whilst also taking advantage of work from home days through our hybrid work approach.

Here’s what you’ll do:

• 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.
• Liaise and collaborate with our water and other discipline teams including civil, electrical, process and mechanical engineers nationwide
• Visit site to carry surveys and support of liaisons with clients, contractors & suppliers
• Lead and contribute 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 successfully deliver the Mechanical Scope to programme and budget
• Assist the Project Manager to set realistic programmes and budgets for Mechanical projects
• Be a Line manager for Mechanical Graduate, Engineer and Senior Engineers

Enjoy the Perks. You’ll thrive in an inclusive and forward-thinking environment where your contributions are valued - and let's not forget the perks! At AECOM, you'll enjoy a range of core benefits designed to support your future and well‑being, and flexible benefits you can customise to suit your lifestyle. Take advantage of our technical practice networks, AECOM University, and volunteering days to accelerate your career development, and utilise our flexible hybrid working model to create a healthy work‑life balance. We recognise that everyone’s circumstances are different, so we’re more than happy to discuss part‑time or flexible working arrangements.

Ready to push the limits of what’s possible? Here’s what we’re looking for:

• A degree (or equivalent) in Mechanical Engineering
• Be a Chartered Engineer with a relevant institution, such as IMechE
• A proven ability to deliver engineering designs, reports, drawings, technical specifications, and calculations with confidence and precision
• Hands‑on experience in 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 are an applicant with a disability that requires reasonable accommodation to complete the application process, please contact us at ReasonableAccommodations@aecom.com. At AECOM, we value everyone's unique contributions and perspectives. 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 ReasonableAccommodations@aecom.com if you would like to apply through the Disability Confident Interview Scheme. All your information will be kept confidential according to EEO guidelines.