Senior Clean Water Network Modeller | Lead & Innovate

Arcadis; Glasgow; On-site; GBP 65,000 - 97,000; Full time

Job summary

Arcadis is seeking a Principal Clean Water Modeller to provide technical leadership in the development and application of potable water distribution network models. You will support planning, resilience, and capital delivery, leading modelling outputs with robust, fit-for-purpose approaches.

You will mentor modellers, contribute to bids, and ensure quality documentation and QA across projects, working with clients and internal teams to deliver sustainable outcomes.

Qualifications

• Degree (or equivalent) in Civil/Water Engineering or 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.
• Chartered status or working towards chartership is desirable.

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).
• 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.
• Ensure compliance with client modelling specifications and water company standards.
• Maintain rigorous documentation, change control, and model development records.
• Lead technical discussions with clients, clearly explaining assumptions, limitations, and results.
• Support scope definition, data strategy, and confidence assessment at project inception.
• Mentor and develop junior and senior modellers, supporting technical excellence and capability growth.
• Contribute to resource planning, task leadership, and a collaborative team culture.
• Support bids and proposals, including defining modelling methodologies, scope, programme, and fee inputs.

Skills

Technical leadership

Modelling of water networks

Client communication

Education

Degree (or equivalent) in Civil/Water Engineering

Tools

InfoWorks WS Pro

Synergi Water

EPANET

ArcGIS / QGIS

Excel / Python

Job description

Arcadis is seeking a Principal Clean Water Modeller to provide technical leadership in the development and application of potable water distribution network models. You will support planning, resilience, and capital delivery, leading modelling outputs with robust, fit-for-purpose approaches.

You will mentor modellers, contribute to bids, and ensure quality documentation and QA across projects, working with clients and internal teams to deliver sustainable outcomes.