Principal Mechanical Engineer, Water Sector

AECOM; Greater London; On-site; GBP 60,000 - 80,000; Full time

Benefits offered by this job

Flexible working options

Diversity and inclusion initiatives

Professional development opportunities

Job summary

A global infrastructure consulting firm in the UK seeks a Principal Mechanical Engineer to lead on water solutions. You will oversee project budgets and designs, ensuring the quality of mechanical installations. The ideal candidate will possess a degree in Mechanical Engineering and have proven expertise in the water industry. This role offers hybrid working options and the chance to make a meaningful impact on sustainable water infrastructure projects.

Qualifications

• Proven experience in producing and approving engineering designs and specifications.
• Ability to manage project budgets and schedules effectively.
• Experience in the water and/or wastewater industry.

Responsibilities

• Develop feasibility studies and detailed designs for water projects.
• Create design drawings and select mechanical plant.
• Manage client relationships and technical quality.
• Conduct site surveys and liaise with contractors and suppliers.

Skills

Mechanical Engineering expertise

Problem-solving

Client engagement

Leadership

Team collaboration

Education

Degree in Mechanical Engineering

Chartered Engineer status (or working towards it)

Job description

Principal Mechanical Engineer – Water Solutions

Are you ready to shape the future of water infrastructure? We’re looking for a Principal Mechanical Engineer to join our growing Water Solutions team, with opportunities to be based across our England & Wales offices.

In this role, you’ll play a key part in delivering major UK water utility investment programmes, supporting the design and delivery of projects that range from small rural sites to multi-million-pound infrastructure and non-infrastructure schemes. These frameworks are long-term and extend through AMP8 and AMP9, giving you the chance to contribute meaningfully to sustainable water solutions across multiple regions.

Key Programme Involvement

• 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 TotEx 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 to deliver efficient and sustainable water and wastewater solutions

Responsibilities

Here’s 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

Here’s what we’re looking for:

• A degree in Mechanical Engineering with Chartered Engineer status (or working towards it) through a recognised institution like IMechE.
• Proven expertise in producing, reviewing, and approving engineering reports, designs, drawings, and specifications.
• A problem-solver at heart, confident in taking ownership of challenging technical issues and seeing them through to resolution.
• Leadership potential, able to manage direct reports, inspire technical excellence, and support 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.

Additional Information

Interested in the role or curious about life at AECOM? Follow us on LinkedIn, Facebook, Instagram, and YouTube to explore our AECOM voices, employee stories, latest projects, and much more!

For further information about the role, reach out to the recruiter on LinkedIn – Anne Marie Flynn. If you meet some of the requirements above or have transferable skills you believe would benefit us, we would be delighted to hear from you!

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 [e-mail]. At AECOM, we value everyone's unique contributions and perspectives.

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

About AECOM

AECOM is the world’s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $14.4 billion in fiscal year 2023. See how we are delivering sustainable legacies for generations to come at aecom.com and @AECOM.

Freedom to Grow in a World of Opportunity

You will have the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed.

You will help us foster a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

AECOM provides a wide array of compensation, benefits and well-being programs to meet the diverse needs of our employees and their families. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too.

Join us, and you’ll get all the benefits of being a part of a global, publicly traded firm – access to industry-leading technology and thinking and transformational work with big impact and work flexibility. 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 [e-mail] if you would like to apply through the Disability Confident Interview Scheme.

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