Senior Hydraulic Modeller – Flexible Water Modelling

Mott MacDonald; Auckland; On-site; NZD 90,000 - 120,000; Full time

Job summary

Mott MacDonald in New Zealand is seeking a Senior Hydraulic Modeller to lead data-driven hydraulic modelling and network planning for water and wastewater across the country. You’ll work with a tight-knit team of engineers, planners and digital specialists to deliver resilient, sustainable systems and provide clear insights to clients.

You’ll hold a degree in Engineering, Science, Geography or a related field with at least two years’ experience and use tools such as InfoWorks WS Pro, EPANET,

Qualifications

• Degree in Engineering, Science, Geography, or related field.
• 2+ years in water/wastewater network planning and hydraulic modelling.
• Strong analytical thinking and problem-solving mindset.
• Strong communication skills and collaborative approach.
• Passion for delivering high-quality, impactful work for communities.

Responsibilities

• Contribute to hydraulic modelling and network planning projects across water and wastewater systems
• Develop and refine models to support strategic master planning and infrastructure development
• Collaborate with multidisciplinary teams across Auckland, Wellington, and nationally
• Communicate insights and solutions clearly to clients and stakeholders
• Learn from team members and contribute to a culture of learning and excellence

Skills

Hydraulic modelling

Water/wastewater network planning

Analytical thinking

Communication skills

Team collaboration

Education

Engineering, Science, Geography degree

Tools

InfoWorks WS Pro

EPANET

InfoWorks ICM

DHI MIKE+

ArcGIS

QGIS

Job description

Mott MacDonald in New Zealand is seeking a Senior Hydraulic Modeller to lead data-driven hydraulic modelling and network planning for water and wastewater across the country. You’ll work with a tight-knit team of engineers, planners and digital specialists to deliver resilient, sustainable systems and provide clear insights to clients.

You’ll hold a degree in Engineering, Science, Geography or a related field with at least two years’ experience and use tools such as InfoWorks WS Pro, EPANET,