Location
London, with flexible hybrid working model and options to work from UK or Ireland offices.

Hours
Full Time, flexible hybrid working arrangements available.

Salary
Negotiable

About the Role
Join AECOM’s dynamic and multidisciplinary Water Team as a Senior Wastewater Hydraulic Modeller. You will play a key role in delivering impactful water projects across the UK and internationally, contributing to flood alleviation schemes, pollution reduction, and infrastructure development. Our integrated modelling team works closely with experts across disciplines to develop comprehensive solutions, maintaining AECOM’s position as an industry leader in Blue-Green infrastructure and nature-based solutions.

You will work with public and private sector clients including Severn Trent, Anglian Water, Northern Ireland Water, the Environment Agency, and others to deliver Flood Risk Assessments, Drainage Strategies, Outline Business Cases, hydraulic models, and detailed designs. You will also help shape industry standards by advising and developing guidance that benchmarks best practices.

This role offers an exceptional opportunity to support a talented, diverse team committed to innovation, collaboration, and efficiency. You will benefit from career development opportunities, technical practice networks, AECOM University, volunteering days, and a supportive work-life balance through our flexible hybrid working model.

Key responsibilities include:
- Building hydraulic models and verifying sewer networks
- Running integrated model development and supporting project scoping and planning
- Developing catchment scale strategic solutions for flooding and pollution risks
- Delivering technical innovation and applying new technologies
- Preparing and delivering technical reports, presentations, and documentation
- Mentoring and supporting team members and fostering positive client relationships
- Acting as a quality checker for hydraulic models, calculations, and technical reports to ensure compliance and high standards.

At AECOM, you will be part of a global team delivering projects that create positive and tangible impacts, working in an inclusive and forward-thinking environment where your contributions are valued.

Experience
Proven experience in water consultancy with expertise in hydraulic modelling, GIS, or data analysis. Experience with ArcGIS or MapInfo is essential. Knowledge of hydraulic modelling or asset management software, particularly Innovyze ICM or InfoAsset, is required.

About you
Self-motivated and able to work autonomously as well as collaboratively within a dynamic, deadline-driven team environment. Strong commitment, willingness to learn, and excellent communication skills are essential. You should be passionate about innovation and turning bold ideas into reality while fostering positive client relationships and mentoring colleagues.

Qualifications
A bachelor’s degree in Environmental Science, GIS, Geography, Civil Engineering, or a related discipline is required.