Mechanical Engineer - Water Sector

Stantec; Cardiff; On-site; GBP 42,000 - 64,000; Full time

Benefits offered by this job

Hybrid / Flexible working

Mentoring and professional development

Competitive salary and benefits

Job summary

Stantec in Cardiff is seeking a Mechanical Engineer to join our Water team. You will contribute to mechanical design across water and wastewater projects, collaborating with senior engineers and other disciplines to deliver safe, efficient, and sustainable solutions.

You will gain experience from feasibility through detailed design and construction support, with mentoring and structured development to help you progress toward chartered status. Hybrid working options are available in the UK.

Qualifications

• A degree in Mechanical Engineering or related discipline.
• Experience in mechanical design, preferably in water or regulated infra.
• Strong understanding of mechanical design principles and standards.
• Good communication and problem-solving skills.
• Ability to work in multidisciplinary project teams.
• Proactive learning approach and strong organisational skills.

Responsibilities

• Support mechanical design activities from feasibility through to detailed design and construction support.
• Assist in producing mechanical calculations, specifications, schedules, reports and design docs.
• Support design of pumping stations, water and wastewater treatment works, pipelines and mechanical infra.
• Undertake site visits, surveys and investigations when required.
• Collaborate with electrical, process, civil and structural engineers for integrated solutions.
• Work with clients and contractors to deliver safe, efficient projects to high technical standards.

Skills

Degree in mechanical engineering

Mechanical design

Communication skills

Team collaboration

Proactive learning

Organisational skills

Education

Bachelor's degree in Mechanical Engineering

Job description

The Opportunity

The water industry is evolving rapidly, with significant investment driving the delivery of more resilient, sustainable and efficient infrastructure. At Stantec, we're working with leading water companies across the UK to deliver innovative engineering solutions that improve essential services and protect the environment for future generations.

We're looking for a Mechanical Engineer to join our growing Water team in Exeter, Bristol or Cardiff. This is an exciting opportunity to build your career within one of the UK’s leading multidisciplinary consultancies, working on a diverse portfolio of clean water and wastewater projects alongside experienced engineers and technical specialists.

You’ll become part of a collaborative team where you can:

• Support the delivery of mechanical engineering solutions across major water infrastructure projects.
• Gain experience throughout the full project lifecycle, from feasibility and optioneering through to detailed design and construction support.
• Work alongside multidisciplinary teams to deliver sustainable, innovative engineering solutions.
• Develop your technical expertise through structured mentoring, training and hands‑on project experience.

About the Role

As a Mechanical Engineer, you will support the delivery of mechanical design services across a wide range of water and wastewater infrastructure projects. Working closely with senior engineers, Project Managers and other technical disciplines, you will contribute to the development of safe, efficient and sustainable engineering solutions.

Your Responsibilities Will Include

• Supporting mechanical design activities from feasibility and concept design through to detailed design and construction support.
• Assisting with the production of mechanical calculations, technical specifications, schedules, reports and design documentation.
• Supporting the design of pumping stations, water and wastewater treatment works, pipelines and associated mechanical infrastructure.
• Undertaking site visits, surveys and technical investigations where required.
• Collaborating with electrical, process, civil and structural engineers to deliver integrated project solutions.
• Working with clients, contractors and internal stakeholders to help deliver projects safely, efficiently and to a high technical standard.

Your Impact

Every project you work on will help deliver infrastructure that communities rely on every day. Your contribution will support the delivery of reliable drinking water, improved wastewater treatment and more resilient assets that help protect the environment and respond to the challenges of climate change.

At Stantec, you'll have the opportunity to develop your technical capability while working on nationally significant infrastructure programmes. Supported by experienced mentors and industry-leading specialists, you'll build the skills needed to progress your career while making a meaningful impact on projects that improve lives and protect natural resources.

About You

We're looking for a motivated Mechanical Engineer who enjoys solving complex engineering challenges and wants to continue developing their technical expertise within a collaborative team.

You Will Have

• A degree in Mechanical Engineering or a related discipline.
• Experience within mechanical engineering design, ideally within water or another regulated infrastructure sector.
• An understanding of mechanical design principles and engineering standards.
• Strong communication and problem-solving skills.
• The ability to work effectively within multidisciplinary project teams.
• A proactive approach to learning and professional development.
• Good organisational skills with the ability to manage multiple priorities.

Desirable

• Experience within the water, utilities, energy or infrastructure sectors.
• Knowledge of pumping systems, treatment processes or mechanical plant design.
• Experience producing technical specifications, reports and engineering documentation.
• Working towards Chartered Engineer status with a relevant professional institution.

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!

• 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.

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.

Building an inspired, inclusive work environment that attracts, supports, and develops world‑class talent is a crucial key to our success. If you are excited by this role but worry that your experience doesn’t exactly align, we encourage you to apply.

At Stantec we want you to perform your best at every stage of the recruitment process and are committed to ensuring it is accessible to all. If you need any support or require adjustments to be made then please contact [email protected] and we will talk to you about how we can support you.