Senior Wastewater Modeller - Ireland

Jacobs; Cork; Hybrid; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Hybrid working

Professional development

Wellbeing initiatives

Paid volunteering opportunities

Job summary

Jacobs Ireland is seeking experienced Senior Wastewater Modellers to join the Water and Environment team. Based in Cork or Dublin, you will lead wastewater network modelling, support strategic planning and collaborate with multi-disciplinary teams on major infrastructure programmes.

Hybrid work arrangements are available. You will mentor junior colleagues, apply data-led solutions, and help deliver sustainable outcomes for communities across Ireland and beyond.

Qualifications

• Experience leading wastewater modelling projects.
• Ability to calibrate and verify hydraulic models.
• Strong collaboration across water, environmental and engineering teams.

Responsibilities

• Lead and deliver wastewater network modelling and analysis projects.
• Develop, calibrate and verify hydraulic models using industry-standard software.
• Support strategic planning, infrastructure design and investment programmes.
• Collaborate with multidisciplinary teams across water, environmental and engineering disciplines.
• Build and maintain relationships with clients and stakeholders.
• Mentor junior team members and grow modelling capability.

Skills

Wastewater modelling

Hydraulic modelling

Client relationship

Team mentoring

Tools

Industry-standard software

Job description

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.

Your impact

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.

With more than 55,000 people across 40+ countries, Jacobs offers the opportunity to work on some of the most complex and rewarding infrastructure projects while developing your career in a supportive, inclusive and flexible environment. We put people at the heart of everything we do, empowering our teams to grow professionally, embrace new challenges and make a positive impact on communities across Ireland and beyond.

People are our greatest asset, and we offer a competitive rewards package designed to attract and retain the best talent. In addition to a market-leading salary, you'll benefit from flexible and hybrid working arrangements, professional development support, wellbeing initiatives, paid volunteering opportunities, and access to a range of employee benefits and programmes that support your personal and professional growth.

Work-life balance and flexibility are a key focus at Jacobs, and we're happy to discuss hybrid working, flexible hours and alternative working arrangements that work for you and our business.

About The Opportunity

This is an exciting time to join Ireland's water sector. Significant investment is planned across water and wastewater infrastructure to support population growth, improve environmental outcomes, enhance network resilience and help meet Ireland's sustainability and climate ambitions.

Jacobs is playing a key role in delivering these improvements through long-term partnerships with clients across Ireland, the UK and globally. We provide technical excellence in water and wastewater modelling, asset management, infrastructure planning and programme delivery, helping our clients make informed investment decisions and deliver lasting benefits to communities.

We are looking for experienced Senior Wastewater Modellers to join our growing Water and Environment team. These roles can be based in Dublin or Cork, supporting major wastewater infrastructure programmes across Ireland while also providing opportunities to contribute to high-profile projects internationally.

You'll work on a diverse portfolio of projects covering wastewater networks, asset planning, growth assessments, hydraulic modelling, wastewater strategy development and capital investment programmes. Our projects place sustainability at their core, helping to protect the environment, improve water quality, enhance network performance and create resilient infrastructure for future generations.

What You'll Do

• Lead and deliver wastewater network modelling and analysis projects.


• Develop, calibrate and verify hydraulic models using industry-standard software.


• Support strategic planning, infrastructure design and investment programmes.


• Collaborate with multidisciplinary teams across water, environmental and engineering disciplines.


• Build and maintain strong relationships with clients and key stakeholders.


• Mentor and support junior team members, contributing to the growth of our modelling capability.


• Help drive innovation through the application of digital tools and data-led solutions.

Why Join Jacobs?

Joining Jacobs means becoming part of a globally recognised team of water professionals while helping deliver transformative projects that directly benefit communities across Ireland. You'll have access to industry‑leading technical expertise, structured career development opportunities, and the chance to work on some of the most significant water infrastructure programmes in the country.

Whether you're looking to deepen your technical expertise, broaden your project experience or take the next step into leadership, Jacobs provides the support, flexibility and opportunities to help you succeed.