Principal Wastewater Modeller

Overview

In this role you will lead wastewater network modelling and guide multi-disciplinary teams to deliver water-related projects. You will work within a global Water Team to shape flood risk, drainage, and environmental outcomes across the UK and beyond. You’ll combine modelling expertise with stakeholder engagement to meet regulatory requirements and client needs. This is a chance to influence industry standards and advance blue-green infrastructure initiatives within a collaborative, hybrid-work environment. Join a mission-driven firm delivering impactful infrastructure that improves communities.

Pay / Benefits

• hybrid working model
• career development opportunities
• AECOM University
• volunteering days
• competitive salary
• comprehensive benefits package

Responsibilities

• Lead development, calibration and verification of wastewater network models using platforms like InfoWorks ICM
• Provide technical oversight and QA across multiple projects and guide project teams
• Undertake and oversee hydrology and groundwater tasks to inform wastewater studies
• Deliver assignments spanning hydrology and related disciplines with defined terms and professional review
• Analyze complex data and modelling outputs; prepare high-quality technical reports and client deliverables
• Monitor upstream impacts on wastewater systems and ensure regulatory compliance
• Act as technical lead on major frameworks and modelling programmes, supporting strategic planning and network resilience
• Mentor junior team members and contribute to bids and business development

Key requirements

• Extensive experience in wastewater network modelling in consultancy or water utility environments
• Strong proficiency in industry-standard modelling software (e.g., InfoWorks ICM)
• Solid understanding of UK water industry regulations, AMP cycles, and wastewater planning frameworks
• Proven ability to lead projects and provide technical direction
• Excellent communication and stakeholder management skills
• Chartered status (CEng) or working towards chartership is desirable

• communication
• stakeholder management
• team leadership
• InfoWorks ICM
• wastewater network modelling
• hydrology

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