Ireland-based Water Network Hydraulic Modeller

Nicholas O'Dwyer Ltd; Dublin; On-site; EUR 60,000 - 85,000; Full time

Job summary

Nicholas O’Dwyer Ltd seeks a Hydraulic Modeller – Water to join our Water team in Ireland. The role focuses on water distribution network modelling using Synergi Liquid, with UK and international projects, supporting development, calibration and analysis of hydraulic models to inform planning and operations.

The ideal candidate holds a civil or environmental engineering degree, 3–7 years of modelling experience, and strong analytical and reporting skills, with familiarity in ArcGIS or QGIS.

Qualifications

• Bachelor’s degree in Civil Engineering, Environmental Engineering, or a related discipline.
• 3–7 years’ experience in hydraulic modelling, ideally with a focus on water distribution networks.
• Experience using hydraulic modelling software such as Synergi Liquid, EPANET, or similar.
• Familiarity with GIS platforms such as ArcGIS or QGIS.
• Understanding of water network behavior including demand, headloss, leakage, and operational controls.
• Experience handling asset, flow, pressure, and demand data for model development and validation.
• Strong analytical and problem‑solving skills.
• Good technical report writing and communication skills.
• Ability to work independently and in a multidisciplinary team.
• Experience contributing to model QA/QC and governance.
• Desirable: experience with Uisce Éireann or Irish/UK standards; valid driving licence.

Responsibilities

• Develop, calibrate, and verify hydraulic models of water distribution networks using Synergi Liquid and related tools.
• Support optioneering and feasibility studies, including growth scenarios and operational strategies.
• Assist planning, programming, and coordination of modelling activities on projects.
• Undertake network analysis to support design, optimization, and operational improvements.
• Coordinate field surveys and data collection for model development.
• Prepare technical reports and model outputs per client standards.
• Collaborate with engineers and multidisciplinary teams to integrate outputs into delivery.
• Review asset, GIS, and operational data for modelling purposes.
• Participate in client meetings and technical discussions.
• Support continuous improvement and innovation in modelling practices.
• Stay up-to-date with hydraulics modelling software and best practices.
• Undertake additional responsibilities as needs evolve.

Skills

Hydraulic modelling

Synergi Liquid

EPANET

ArcGIS

QGIS

Data interpretation

Analytical thinking

Education

Civil Engineering

Environmental Engineering

Tools

Synergi Liquid

EPANET

ArcGIS

QGIS

Job description

Nicholas O’Dwyer Ltd seeks a Hydraulic Modeller – Water to join our Water team in Ireland. The role focuses on water distribution network modelling using Synergi Liquid, with UK and international projects, supporting development, calibration and analysis of hydraulic models to inform planning and operations.

The ideal candidate holds a civil or environmental engineering degree, 3–7 years of modelling experience, and strong analytical and reporting skills, with familiarity in ArcGIS or QGIS.