Principal Water Network Engineer/Modeller in Belfast

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: As an experienced Water Network Engineer, you’ll bring leadership, insight, and technical excellence to a collaborative UK-wide team. Based at one of our UK offices with hybrid working, you’ll also have the opportunity to contribute to global projects, expanding your influence beyond borders. You’ll be at the heart of major strategic partnerships with leading water companies, helping to drive projects from early feasibility and planning stages through to design, construction, and long-term operations. Your impact will be felt in the resilience of water networks, the sustainability of communities, and the success of a generational national multi £Billion portfolio of projects.

Role Responsibilities:

• Hydraulic modelling of water network including build, verify and use of hydraulic models in capital projects.
• Develop innovative solutions from feasibility through to optioneering, detailed design and commissioning and operations of new assets - pipelines, service reservoirs, pumping stations, and control valves.
• Develop control philosophies for the operation of new assets.
• Develop system level control and operation for the entire schemes.
• Integrate new schemes with existing network to ensure efficient future operation with minimal customer impact.
• Act as a technical lead within a multidisciplinary team.

Here’s what you’ll need: Our recruitment team would be delighted to hear from candidates with a good mix of the following skills and experience:

• Demonstrable and progressive experience of water network operations, hydraulic modelling, optioneering, and engineering design.
• Proficiency in modelling software such as: Synergi Water/Liquid, InfoWorks WS Pro, or EPANET.
• Experience in water quality modelling including chlorine decay, discolouration risk, water age, and PODDS modelling.
• Expertise in developing control philosophies for complex strategic networks.
• Proven experience in managing and developing diverse teams.
• Strong communication skills to convey technical information clearly to both technical and non-technical audiences.
• Excellent writing skills for engineering reports, guidance documents, and proposals.

What We Offer:

• Fantastic work-life balance and flexibility.
• Medical cover and Digital GP.
• Fertility healthcare and family planning.
• Enhanced parental leave pay.
• Enhanced pension contributions 10%.
• Life assurance at 4x salary.
• Professional membership fees and CPD.

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.