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Job Description & How to Apply Below
Location:
London, Greater London, United Kingdom | Birmingham, West Midlands, United Kingdom | Bristol, United Kingdom | Exeter, Devon, United Kingdom | Plymouth, Devon, United Kingdom | Warrington, Cheshire, United Kingdom | Cardiff, Wales, United Kingdom | Manchester, Greater Manchester, United Kingdom | Leeds, West Yorkshire, United Kingdom | Guildford, Surrey, United Kingdom | Cambridge, East of England, United Kingdom Department:
Water Engineering Business Unit: AUK UKWork Type:
On-site
Date Posted:
Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets.
We are more than 36,000 people, in over 70 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world’s most complex challenges and deliver more impact together.
Role description:
As a Principal Clean Water Modeller, you will provide technical leadership in the development and application of clean water (potable water) distribution network models. You will support planning, resilience, operational strategy, and capital delivery projects, leading the quality and assurance of modelling outputs. Working closely with clients and internal teams, you will define robust, fit-for-purpose modelling approaches that support sustainable outcomes and Arcadis’ purpose of improving quality of life.
Role accountabilities:
Technical Leadership & Governance 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.
Modelling Delivery Build, update, and maintain clean water network models (steady-state and extended period simulation).Undertake demand allocation, asset representation (pumps, PRVs, reservoirs, tanks), and operational control logic.
Carry out calibration and validation against flow, pressure, and level data.
Deliver scenario modelling to support growth, resilience, outage planning, pressure management, leakage reduction, and investment planning.
Standards, Specifications & Quality Ensure compliance with client modelling specifications and water company standards.
Maintain rigorous documentation, change control, and model development records.
Client & Stakeholder Management Lead technical discussions with clients, clearly explaining assumptions, limitations, and results.
Support scope definition, data strategy, and confidence assessment at project inception.
Line Management, Coaching & Community Mentor and develop junior and senior modellers, supporting technical excellence and capability growth.
Contribute to resource planning, task leadership, and a collaborative team culture.
Work Winning & Growth Support bids and proposals, including defining modelling methodologies, scope, programme, and fee inputs.
Qualifications &
Experience:
Typical Software & Tools Clean water modelling software (e.g. Info Works WS Pro, Synergi Water, EPANET).GIS platforms (ArcGIS / QGIS).Data analysis and reporting tools (Excel, Python, databases).Essential Degree (or equivalent experience) in Civil Engineering, Water Engineering, Environmental Engineering, or a related discipline.
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 a relevant professional institution (e.g. ICE, CIWEM).
Experience with water quality modelling concepts (e.g. water age, chlorine decay).Experience developing automation, QA tools, or advanced GIS/data workflows.
Why Arcadis?
We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It’s why we are pioneering a skills-based approach, where you can harness…
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