AECOM
Principal Mechanical Engineer
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Principal Mechanical Engineer
Principal Mechanical Engineer | Water Team
Location: Scotland (Hybrid Working)
ReqID: J10149270
Work with Us. Change the World.
At AECOM, we're delivering a better world. Whether improving infrastructure, ensuring access to clean water, or shaping sustainable cities, our work helps people and communities thrive. We’re a global, diverse team of 50,000+ planners, engineers, scientists, and innovators, united by our mission to deliver lasting impact.
Accelerating global infrastructure investment has never created a more exciting time for our team. Join us to bring bold ideas to life while contributing to multi-billion-pound projects that redefine sustainability, resilience, and net-zero ambitions.
About the Role: Become Part of Scotland’s Water Transformation
Our Water Team in Scotland is at the forefront of a multi-decade, multi-billion-pound infrastructure revolution, including Scottish Water’s SR27 Enterprise—the highest-value programme ever for the nation. **AECOM has been appointed as a Preferred Bidder for Primary Design expertise, shaping water and wastewater systems for the next 26 years.
As Principal Mechanical Engineer, you’ll:
- Lead mechanical design excellence on transformational projects
- Collaborate with cross-disciplinary teams and national partners to deliver net-zero-aligned solutions
- Foster innovation and vocational leadership for mechanical graduates, engineers, and junior professionals
This is not just an opportunity—it’s a runway to shape Scotland’s future.
Key Responsibilities: Drive Impact at Scale
Your role will span strategy, design, and output delivery:
Design & Technical Leadership
- Develop feasibility studies, plant layouts, WIMES data sheets, and mechanical specifications for water and wastewater treatment plants (WwTW), water treatment works (WTW), and infrastructure projects.
- Prepare P&IDs, valve schedules, equipment lists, lifting strategies, and hydraulic calculations.
- Lead design reviews (HAZOP, HAZID, ALMs) and SWIFTS workshops to ensure compliance and technical robustness.
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Project & Team Leadership
- Act as Mechanical Lead, coordinating with Civil, Electrical, Process, and SE teams to align design goals.
- Set realistic programmes and budgets, maintaining alignment within strict project timelines.
- Mentor graduates and senior engineers as Line Manager, cultivating technical and leadership talent.
Stakeholder Engagement
- Engage directly with clients, contractors, and suppliers via site visits and technical reviews.
- Collaborate with Scottish Water and Enterprise Partners to directly influence social and environmental outcomes.
Your Impact Beyond AECOM
Your work will: ✔ Transform Scotland’s water infrastructure for decades to come ✔ Drive sustainable resilience while advancing net-zero ambitions across regions ✔ Develop engineers of tomorrow, growing an inclusive and high-performing culture
About AECOM: An Environment of Opportunity
Freedom to Grow
-Choose your working model—between office, client sites, and remote—aligned with a hybrid work approach and exceptional flexibility.
Professional Development
-Engage with AECOM University, skill networks, and unrestricted time for volunteering to sharpen your career building on MAJOR projects.
Inclusivity & Equity
-We embrace neurodiversity and encourage applications from diverse backgrounds. Reasonable accommodation requests are delivered with care.
Spectrum of Benefits
-The standard of competitive remuneration, global mobility plans, and family-friendly policies—DESPITE ensuring your mental and physical wellbeing is cherished (e.g., wellness programs, family discounts via AECOM).
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Qualifications & Skills: Be Bold
We’re looking for candidates with:
Must-Haves
✅ A degree (or equivalent) in Mechanical Engineering ✅ Chartered Engineer (CEng) status with a recognised UK institution (e.g., IMechE) ✅ 5+ years of practice-specific relevant experience in design and technical reviews for water or wastewater projects ✅ Excellent technical communication— παράδοξως through drawings, reports, specifications ✅ Track record of driving design value, risk assessment, and delivery precision for water-related infrastructure
Nice-to-Haves
🔹 Consultancy experience with Scottish Water, Utilities, or Public Sector clients 🔹 Experience managing suppliers, contractors and large-scale contractors—with proven sourcing success
Candidate Inclusivity: AECOM holds a Disability Confident Employer agenda. Needs那 condition葛 expect coverage? Email ReasonableAccommodationsUKI@aecom.com.
Why Join Us? Benefits for Tomorrow
We believe our employees’ progress is ours to invest in.
- Global recognition on multi-billion projects where careers flourish
- Flexibility align – [with who and what matters]
- Goodhope social/volunteer programs to build shared value
- Exposure to industry leaders—through tech development programs, training, and mentoring
AECOM Voices
About Us at Brendan Projects
AECOM transforms complex technological challenges into simple, long-term solutions—delivering a better world.
Learn more: 🌍 aecom.com 💼 @AECOM 🏛 Fortune 500 firm, $16.1b USD revenue in FY2025
Ready to make an enduring difference? Apply now or connect with us on LinkedIn to follow our amazing role and project portfolio, lessons, and impact. Let us shake up the future!
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