Senior Water Network Engineer/Modellers 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. Your impact in the water sector in Ireland is significant as it undergoes a major transformation. Unprecedented investment and technological advancement are creating a once-in-a-generation opportunity to redefine water and wastewater infrastructure.

We are proud to be at the forefront of this transformation, partnering with large companies across Ireland to deliver water and wastewater services and better manage water-related risks. From strategic planning and flood management at various stages of the project lifecycle—from concept through to commissioning—we bring together exceptional talent and expertise to deliver success. We have secured multiple long-term frameworks and programmes with leading clients across Ireland, including Uisce Éireann (Irish Water), Northern Ireland Water, and the Northern Ireland Department for Infrastructure (DfI). These major initiatives span water, wastewater, flood management, and environmental protection—delivering critical infrastructure that makes a real difference to communities.

To support our expanding portfolio and future growth ambitions in Ireland, we are looking for Senior Water Networks Engineers/Modellers to join and strengthen our established Water team, based across our Dublin, Cork and Belfast offices. Our Water Networks teams operate nationwide, delivering expertise across the full spectrum of water and non-infrastructure projects—from feasibility assessments and optioneering to operational support, optimisation, systems integration, and the development of smart network solutions.

You will have the opportunity to lead a diverse range of projects, including water trading, capital design, water quality modelling, network design, zonal studies, leakage optimisation, and model maintenance. You will apply industry-leading solutions and be encouraged to introduce innovative approaches. In addition, you will support and mentor local teams while contributing to the continued growth of our Irish water business. This is your chance to influence the future of water.

Responsibilities:

• Responsible for the technical delivery of projects within programme and budget.
• Provide technical leadership and guidance in project delivery.
• Provide coaching, mentoring, technical support and quality assurance to the local team.
• Ensure high-quality project delivery from yourself and your team, meeting budget, timeline, and client expectations.
• Develop and implement methodologies, guidance documents, and templates for engineering and modelling projects.
• Promote innovation and continuous improvement to enhance efficiency and add value.
• Work collaboratively with multiple-disciplinary teams internally and externally.
• Contribute to tendering process including proposal writing and cost estimate.

Essential Skills And Knowledge:

• Deep understanding of water network operations, hydraulic modelling, optioneering, and engineering design.
• Experience in network modelling using at least one software package Synergi Water/Liquid, InfoWorks WS Pro, or EPANET.
• Proven experience of working independently and within a team on project delivery.
• Ability to present technical findings clearly to both technical and non-technical audiences.
• Excellent communication skills to articulate technical information confidently and clearly.
• Excellent writing skills including engineering reports, guidance documents and proposals.
• Strong problem-solving mindset with the ability to address complex challenges.
• Proficient in numerical analysis and data interpretation.
• Ability to work under pressure and meet challenging deadlines.
• Proven ability to deliver projects within time and budget.
• Chartered engineer or working towards chartership.

Desirable Skills And Knowledge:

• Experience in GIS packages.
• Experience in visualisation such as Power BI, Tableau, Esri etc.
• Experience in coding and tool development.
• Project management and financial experience.
• Experience working in a global delivery or consultancy environment.

Why join Jacobs:

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.

Work arrangements and support:

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 maximise your potential. You’ll uncover flexible working arrangements, benefits, and opportunities, from well-being benefits to our global giving and volunteering programme, 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 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. 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, please contact the team via Careers Support.