Location
Cardiff, with flexible hybrid working options available across UK and Ireland offices.

Hours
Full Time, flexible working arrangements considered to support work-life balance.

Salary
Negotiable

About the Role
Shape the future of water with AECOM by leading advanced wastewater modelling that drives sustainable infrastructure and lasting environmental impact. Join our dynamic and multidisciplinary Water Team as a Senior Wastewater Hydraulic Modeller, delivering impactful water projects across the UK and internationally. You will contribute to significant flood alleviation schemes, pollution reduction, and infrastructure projects, supporting your continuous professional growth. Our modelling team works fully integrated with wider project teams, collaborating closely with experts to develop comprehensive solutions. As an industry leader in Blue-Green infrastructure and nature-based solutions, we serve public and private sector clients including Severn Trent, Anglian Water, Northern Ireland Water, the Environment Agency, LLFAs, and other infrastructure providers. You will deliver Flood Risk Assessments, Drainage Strategies, Outline Business Cases, hydraulic models, and detailed designs while shaping industry standards through guidance and best practices. This role offers the opportunity to support a talented, diverse team committed to innovation, collaboration, and efficiency. Key responsibilities include building and verifying hydraulic models of sewer networks, running integrated model development, scoping and planning projects, applying technical innovation, preparing technical reports and presentations, mentoring team members, fostering client relationships, and ensuring quality and compliance in all deliverables. Join AECOM to not only construct infrastructure but also uplift communities and enhance lives in an inclusive and forward-thinking environment with excellent career development opportunities and personalised benefits.

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

About you
Self-motivated with the ability to work autonomously and collaboratively within a dynamic, deadline-driven team environment. Strong commitment, willingness to learn, and excellent communication skills to effectively convey modelling findings. Passionate about innovation and delivering high-quality solutions while fostering positive client relationships and supporting team development.

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