Mechanical Project Engineer - Wastewater (UK wide) in Birmingham

At Jacobs, we are challenging today to reinvent tomorrow by solving the world’s most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

Your impact: At the forefront of the biggest transformation and investment programme of the UK Water sector in decades, Jacobs along with our JV Partners and Customers, bring together exceptional talent and expertise to deliver complex turnkey solutions from concept, feasibility, and planning to design, construction management, commissioning and through life asset O&M management, creating once in a generation opportunities.

In these roles you won’t just witness this transformation — you’ll drive it. You will be an integral part of our UK team shaping the future of the water industry by delivering high value complex innovative and sustainable solutions that protect resources and strengthen resilience. From feasibility and planning to advanced design, construction, and commissioning, you will play a critical role in projects such as pumping stations, treatment plants, and associated CAPEX assets, ensuring compliance with regulatory and safety standards.

With multiple roles available across all levels, as part of a UK wide team recognised for delivering world class solutions you will contribute to or lead engineering activities throughout their project lifecycle—from concept and detailed design through to commissioning—collaborating with multi-disciplinary teams, JV partners and clients to achieve outstanding results. Your remit will include:

• Deliver Mechanical Engineering Design Excellence: Design of water and wastewater systems, including pumping stations, treatment plants, conveyance systems, and associated infrastructure, from concept through completion.
• Innovate & Add Value: Participate in value engineering, buildability, performance, reliability workshops, delivering sustainable and innovative design solutions for water infrastructure.
• Equipment Selection: Specify mechanical equipment such as pumps, blowers, screens, valves, chemical dosing plant, and odour control systems.
• Project Lifecycle Involvement: Develop feasibility studies, outline and detailed designs, and provide construction and commissioning support.
• Technical Documentation: Produce design layouts, technical specifications, datasheets, and P&IDs for mechanical systems.
• Compliance & Standards: Ensure designs meet UK water industry standards, health & safety, and environmental regulations.
• Constructability & Commissioning: Embed practical and commissioning requirements into designs from the outset.
• Solutions Delivery: Collaborate with multidisciplinary teams (civil, electrical, process engineers) to deliver integrated solutions.
• Project Management: Support or lead design management, scheduling, risk management, change control, and financial forecasting.
• Site Engagement: Conduct site surveys and investigations, liaising with clients, contractors, and suppliers to ensure practical and efficient solutions.
• Team Collaboration: Foster a culture of knowledge sharing, innovation, mentoring and professional growth within the mechanical discipline.

Here’s what you’ll need: This is your chance to make a real difference. Join us and be part of the transformation. Together, we will shape the future of the water industry.

Our Talent Acquisition Team would be delighted to hear from and speak to ambitious candidates with a mix of the following skills and experience:

• Professional Membership: Working toward or holding chartered status (e.g., IMechE or equivalent), depending on experience.
• Experience: Progressive experience in the delivery of detailed design and Design & Build solutions for water, wastewater, and bioresources projects.
• Technical Knowledge: A sound understanding and knowledge of mechanical engineering principles, project lifecycle management, and mechanical equipment and systems used in water/wastewater treatment.
• Regulatory Awareness: Familiar with UK water sector regulations, health & safety, and environmental standards.
• Health & Safety: Robust understanding of current health, safety, and welfare legislation, promoting best practices at all levels.
• Design: Experience with design software (e.g., AutoCAD, Revit, BIM).

Joining Jacobs not only connects you locally but globally. Our values stand on a foundation of safety, integrity, inclusion and belonging. We put people at the heart of our business, and we truly believe that by supporting one another through our culture of caring, we all succeed. We value positive mental health and a sense of belonging for all employees.

With safety and flexibility always top of mind, we’ve gone beyond traditional ways of working so you have the support, means and space to maximize your potential. You’ll uncover flexible working arrangements, benefits, and opportunities, from well-being benefits to our global giving and volunteering program, to exploring new and inventive ways to help our clients make the world a better place. No matter what drives you, you’ll discover how you can cultivate, nurture, and achieve your goals – all at a single global company.

We aim to embed inclusion and belonging in everything we do. We know that if we are inclusive, we’re more connected and creative. We accept people for who they are, and we champion the richness of different perspectives, lived experiences and backgrounds in the workplace, as a source of learning and innovation. We are committed to building vibrant communities within Jacobs, including through our Jacobs Employee Networks, Communities of Practice and our Find Your Community initiatives, allowing every employee to find connection, purpose, and belonging.

Jacobs partners with VERCIDA to help us attract and retain talent from a wide range of backgrounds. For greater online accessibility please visit to view and access our roles.

As a disability confident employer, we will interview disabled candidates who best meet the criteria. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

We value collaboration and believe that in-person interactions are crucial for both our culture and client delivery. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work.

Your application experience is important to us, and we’re keen to adapt to make every interaction even better. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team.