Principal Mechanical Engineer, Water

Principal Mechanical Engineer, Water Sector

• Full-time
• State/Province:
  London, City of
• Business Group: DCS
• Legal Entity: AECOM Limited
• Business Line:
  Water
• Work Location Model:
  Hybrid
• Operating Group:
  International
• Primary
  
  Location:
  
  UK - Croydon, 69 Park Lane

Principal Mechanical Engineer supporting major UK water utility investment programmes across multi-million‑pound projects and non‑infrastructure schemes within the AMP8 and AMP9 frameworks.

Key Projects:

• South West Water – Framework for Engineering Consultancy Services:
  Lot 3 – Multi‑Discipline Engineering Design
• Wessex Water – Capital Delivery Partner Framework Agreement:
  Lot 2 – Design Consultant
• Severn Trent Water – Lot 1 Major Projects Framework: supporting AMP8 delivery plan valued at a Tot Ex of £14.9 billion
• Severn Trent D&B Projects – supporting Tier 1 contractors on major non‑infrastructure wastewater schemes
• Southern Water Strategic Delivery Partner (SDP) Frameworks – Lot 1:
  Non‑infrastructure water projects;
  Lot 2:
  Non‑infrastructure wastewater projects
• Southern Water Low Complexity and Infrastructure Frameworks – Lot 2:
  Wastewater Infrastructure;
  Lot 3:
  Infrastructure Framework, partnering exclusively with Tier 1 contractors

What you’ll do:

• Develop feasibility studies, outline and detailed designs, and provide construction support
• Create design drawings, select mechanical plant, and prepare technical specifications
• Collaborate with multidisciplinary teams, including civil, electrical, process, and mechanical engineers
• Ensure high technical quality, contribute to bids, and maintain client relationships
• Manage project budgets, schedules, and deliverables to meet agreed targets
• Design mechanical installations for water and wastewater systems, including pumps, screens, valves, and odour control
• Conduct site surveys and liaise with clients, contractors, and suppliers
• Produce layouts, technical specifications, datasheets, and P&IDs for system designs

Qualifications:

• Degree in Mechanical Engineering with Chartered Engineer status (or working towards it) through a recognised institution such as IMechE
• Proven expertise in producing, reviewing, and approving engineering reports, designs, drawings, and specifications
• Strong problem‑solving skills and confidence in owning challenging technical issues to resolution
• Leadership potential, capable of managing direct reports, inspiring technical excellence, and supporting the growth of fellow engineers
• Exceptional client and stakeholder engagement skills, with experience in team leadership, mentoring, and line management
• Experience in the water and/or wastewater industry

Benefits:

• Career development opportunities and AECOM University
• Flexible hybrid working model to support work‑life balance
• Technical practice networks and volunteering days
• Competitive compensation and well‑being programmes tailored to diverse needs

We celebrate diversity, including neuro‑diversity. We welcome applications from all backgrounds and abilities. If you require reasonable accommodation during the application process, please contact Reaso

As an Equal Opportunity Employer, we believe in each person’s potential, and we’ll help you reach yours.

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.

All your information will be kept confidential according to EEO guidelines.