Lead Clean Water Network Modeller

Arcadis; West of England; On-site; GBP 70,000 - 110,000; Full time

Job summary

Arcadis is seeking a Principal Clean Water Modeller to provide technical leadership in the development and application of clean water distribution network models. You will lead modelling delivery, ensure QA and audit trails, and work with clients and internal teams to define robust strategies for sustainable outcomes.

The role involves mentoring modellers, contributing to bid and proposal work, and maintaining high-quality documentation across projects in the UK.

Qualifications

• Degree (or equivalent) in Civil/Water/Environmental Engineering.
• Significant experience in clean water distribution network modelling within consultancy or water company environments.
• Strong understanding of water distribution hydraulics and operational behaviour.
• Proven ability to produce high-quality technical documentation and QA records.
• Desirable: Chartered (or working towards chartership) with ICE/CIWEM.
• Desirable: Experience with water quality modelling concepts (e.g. water age, chlorine decay).
• Desirable: Automation, QA tools, or advanced GIS/data workflows.

Responsibilities

• Act as technical lead for clean water modelling commissions, defining modelling strategies and ensuring outputs are fit for purpose.
• Provide independent technical assurance, model reviews, and sign-off of deliverables with clear audit trails.
• Develop and promote best practice, guidance, and standard templates across the modelling community.
• Build, update, and maintain clean water network models (steady-state and extended period simulation).
• Deliver scenario modelling to support growth, resilience, outage planning, pressure management, leakage reduction, and investment planning.
• Lead client discussions, data strategy, and scope definition at project inception.
• Mentor and develop junior and senior modellers, supporting technical excellence and capability growth.

Skills

Civil Engineering

Water Engineering

Modelling leadership

QA documentation

Client management

Education

Degree in Civil/Water Eng

Tools

InfoWorks WS Pro

Synergi Water

EPANET

ArcGIS

Excel

Python

Job description

Arcadis is seeking a Principal Clean Water Modeller to provide technical leadership in the development and application of clean water distribution network models. You will lead modelling delivery, ensure QA and audit trails, and work with clients and internal teams to define robust strategies for sustainable outcomes.

The role involves mentoring modellers, contributing to bid and proposal work, and maintaining high-quality documentation across projects in the UK.