Wastewater Modellers - Dublin Cork

At Jacobs, we're 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.

Join Our Team as a Wastewater Modeller! — Dublin, Cork, Belfast.

Join Jacobs at a pivotal moment in the Irish water sector, where investment is at record levels and the opportunity to shape transformative infrastructure is real. As a Wastewater Modeller, your expertise will directly influence the success of major water programmes that improve communities and protect the environment.

At Jacobs, you’ll be part of a collaborative team working with Ireland’s largest water companies—from early feasibility and planning through to design, construction, and long‑term operations. Your modelling insights will help drive smarter, more sustainable solutions across Ireland.

We’re looking for professionals who are ready to take the next step in their career—those who want to be challenged, supported, and empowered to make a difference. Whether you're refining hydraulic models, supporting flood risk assessments, or contributing to climate resilience strategies, your work will matter.

• Support technical delivery and assist the Project Manager to ensure successful delivery of robustly defined technical solutions.
• Experience in network hydraulic modelling (Info Works ICM).
• Work as part of a team on a variety of projects including model build and verification, using existing models to understand system performance.
• Optioneering and solutions development for flooding and CSO drivers.
• Interact directly with various personnel in our client’s organisations, including face‑to‑face progress meetings.
• Investigate, analyse, and resolve drainage network issues.
• Scope network surveys to supplement model updates.
• Review and manage weekly contractor survey submissions.
• Build and maintain hydraulic models.
• Deliver technical reports and hydraulic modelling studies.
• Develop modelled engineering solutions to mitigate development impacts, solve sewer flooding, and address unsatisfactory overflows.
• Assist with preparation of cost estimates for modelling.
• Supervise site surveys and field investigations.
• Plan, programme, co‑ordinate, and write reports for specific projects.
• Provide guidance and support to graduate engineers or technicians.

• Proficiency in wastewater modelling software such as Info Asset Manager, and Info Works ICM.
• Working knowledge of GIS tools (Map Info, ArcGIS).
• Ability to work to client specifications and industry standards.
• Demonstrable track record of technical achievement and client satisfaction within the water industry.
• Capable of building and maintaining strong relationships with internal staff and external clients.
• Ability to be flexible and to be able to multi‑task and prioritise when necessary.

Jacobs partners with VERCIDA to help us attract and retain talent from a wide range of backgrounds. We are a disability‑confident employer and welcome applications from candidates seeking flexible working or those who may not meet all listed requirements.

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