Engineer - Water Supply Network Modelling

Key responsibilities

Capacity assessment and developer services

•   Assess connection applications, developer enquiries and planning applications against the utility’s connection and capacity criteria.

•   Carry out network capacity checks and detriment analysis to determine the impact of proposed development flows on existing customers.

•   Calculate development demands and flow rates by development type and usage profile.

•   Undertake desktop network assessment where no calibrated model exists, using GIS, asset records and engineering judgement.

•   Recommend engineered solutions where criteria are not met — pipe upsizing, on-site boosting, storage provision or alternative points of connection.

•   Prepare technical response letters and draft formal responses for issue in accordance with the client’s delegated-authority and QA procedures, and maintain enquiry tracking records.

Hydraulic modelling support

•   Support model build, verification and calibration tasks including data collection and validation, water and reservoir balances, demand analysis, and flow and pressure calibration.

•   Build and run peaked and future-scenario models for growth and design horizon assessment.

•   Undertake fire flow analysis and level-of-service checks.

•   Report data gaps, GIS anomalies and modelling inconsistencies to the project lead.

Delivery and communication

•   Work to client turnaround targets across a high volume of concurrent enquiries.

•   Coordinate directly with overseas counterpart teams on data requests and technical queries.

•   Prepare maps, schematics and supporting documentation using GIS.

•   Contribute to process improvement and workflow automation where opportunities are identified.

Quality assurance and delegated authority

This role carries real technical decision-making, within a defined and supervised framework. What you decide independently, and what must be checked before it leaves the team, is set out clearly from day one.

What the role decides independently

•   Determination of standard connection and capacity enquiries that fall clearly within the client’s published criteria, following a supervised assessment period. That period is normally expected to be approximately three months, but is dependent on demonstrated competency and client requirements.

•   Selection of assessment method — model-based or desktop — for routine enquiries, and the supporting demand and flow calculations.

•   Day-to-day technical correspondence with counterpart teams on data, records and clarifications.

What requires second-party technical check before issue

•   All outputs during the supervised assessment period, without exception.

•   Any assessment recommending network reinforcement, capital works or client expenditure.

•   Any refusal, rejection or conditional response to a developer.

•   Any case where the network fails to meet the client’s level-of-service criteria.

•   Non-standard, phased or large-scale developments, and any case where desktop engineering judgement substitutes for a calibrated model.

What must be escalated

•   Any proposal to vary, interpret or depart from the client’s published design criteria — escalate to the Technical Delivery Lead. This role does not hold authority to vary client criteria or commit AECOM to a technical position outside the agreed scope.

•   Data quality or model confidence issues material enough to undermine the assessment.

•   Any query touching scope, programme or commercial terms.

Record and audit

•   Self-check every assessment against the client QA/QC checklist before submitting it for review.

•   Maintain an auditable record for each enquiry — assumptions made, data sources used, criteria applied and the basis of the determination — sufficient for a third party to reconstruct the decision.