Senior Principal Mechanical Engineer - Water Sector

The UK water industry is entering one of its most significant periods of investment, with major programmes transforming how water and wastewater infrastructure is planned, designed and delivered. At Stantec, we're partnering with leading water companies to deliver innovative engineering solutions that improve resilience, enhance environmental performance and support communities for generations to come.

We're looking for a Senior Principal Mechanical Engineer to join our growing Water team in Newcastle or Leeds . This is an opportunity to take a senior leadership role within our Mechanical Engineering capability, providing technical direction across complex programmes while helping shape the continued growth of our business in the North.

You'll be joining a collaborative multidisciplinary team where you can:

• Lead the mechanical design of nationally significant water and wastewater infrastructure projects.

• Provide technical leadership across multidisciplinary teams and major client frameworks.

• Mentor, develop and inspire engineers while strengthening our regional capability.

• Build trusted relationships with clients and influence the future direction of project delivery.

ABOUT THE ROLE

As a Senior Principal Mechanical Engineer, you will provide technical leadership across the full project lifecycle, from feasibility and optioneering through to detailed design, construction support and commissioning. You'll act as the technical authority for complex mechanical engineering solutions, ensuring projects are delivered safely, efficiently and to the highest technical standards.

Your responsibilities will include:

• Leading mechanical design across major infrastructure and non-infrastructure projects.

• Providing technical governance and quality assurance across project teams.

• Acting as a trusted advisor to clients and supporting key strategic decisions.

• Leading multidisciplinary design reviews and collaborating with Project Managers, contractors and supply chain partners.

• Providing line management, mentoring and technical development for engineers across the region.

• Supporting business growth through client engagement, framework development and technical innovation.

YOUR IMPACT

Your leadership will help deliver infrastructure that secures water supplies, improves wastewater services and protects the environment. Through your technical expertise you'll influence engineering decisions across nationally significant programmes, helping clients respond to increasing environmental, operational and regulatory challenges.

Beyond project delivery, you'll play a vital role in developing future engineering leaders, strengthening client relationships and driving technical excellence across the business. Your contribution will help shape the future of Stantec's Mechanical Engineering capability while delivering long-lasting benefits for communities across the UK.

ABOUT YOU

We're looking for an accomplished Mechanical Engineer with exceptional technical knowledge, leadership capability and a passion for developing people.

You will have:

• A degree in Mechanical Engineering or a related discipline.

• Chartered Engineer (CEng) status or equivalent professional experience.

• Significant experience delivering mechanical engineering solutions within the UK water sector.

• Strong experience leading multidisciplinary engineering teams on complex infrastructure projects.

• Experience producing and reviewing technical specifications, calculations and mechanical designs.

• Excellent stakeholder management and client relationship skills.

• Experience mentoring, developing and line managing engineers.

Desirable:

• Experience working alongside delivery contractors.

• Experience supporting framework growth, bids and business development.

• Experience leading innovation and continuous improvement initiatives.

WHY JOIN US

We put people first:

We're proud of our friendly, inclusive and collaborative environment where everyone feels valued and driven to succeed.

We are driven to achieve:

Named in the top 50 companies to work by Glassdoor 2025. Recognised by Corporate Knights as one of the world's top 10 most sustainable companies 2025. Named ‘Best Place to Work’ and ‘International Consulting Firm of the Year’ at the NCE Awards 2024.

We do what is right:

Industry leading training and development as well as paid for professional subscriptions. A professional progression plan, supporting you to become chartered with ICE.

We are better together:

A supportive and collaborative team environment and Early Careers peer group and wider ERG network (see more on our ERGs here: Stantec Employee Resource Groups).

Growth:

We're on an exciting growth journey across the UK - we want you to be part of it!

Great Benefits:

Competitive salary, bonus schemes, enhanced pension plan, annual leave with the option to buy/sell additional days, private medical insurance, group income protection & life assurance included as standard as well as discounted gym membership and lots more.

Hybrid / Flexible working:

Enjoy a healthy work-life balance with our hybrid approach to flexible working.

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About Stantec

The Stantec community unites more than 34,000 employees working in over 450 locations across 6 continents. We have been working with our clients and communities in the UK for over 150 years. We plan, design, deliver and manage the development and infrastructure needed to support the creation of sustainable, healthy and prosperous communities.

Our teams provide effective and relevant solutions, translating our clients’ vision into valued consents, deliverable plans for projects and programmes, and efficient designs for delivery, based on technical excellence and deep market insights. We deal with today’s challenges, but also keep a fairer, better tomorrow in sight, looking at how we deliver clean growth, support radical changes in our economy and meet the needs of future communities.

Stantec provides equal employment opportunities to all qualified employees and applicants for future and current employment and prohibit discrimination on the grounds of race, colour, religion, sex, national origin, age, marital status, genetic information, disability, sexual orientation, gender identity or gender expression. We prohibit discrimination in decisions concerning recruitment, hiring, referral, promotion, compensation, fringe benefits, job training, terminations or any other condition of employment. Stantec is in compliance with laws and regulations and ensures equitable opportunities in all aspects of employment.

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