AECOM is seeking a motivated Senior Drainage Engineer to deliver innovative sustainable surface-water wet‑utility and flood‑management solutions across our global infrastructure portfolio. Reporting to a Principal H&H Lead you will undertake hydrologic modelling hydraulic design technical reporting and multi‑disciplinary coordination.

• Lead and deliver 1D/2D surface‑water drainage and flood studies from concept through detailed design.
• Develop calibrate and run hydrologic & hydraulic models (HEC‑RAS HEC‑HMS SWMM WMS InfoWorks ICM etc.) for surface‑drainage piped networks and cross‑drainage structures.
• Conduct rainfall runoff meteorological and water‑balance analyses to inform design criteria.
• Prepare detailed designs for potable‑water sewerage stormwater irrigation and firefighting networks (using WaterGEMS SewerGEMS FlowMaster CulvertMaster HY‑8 and related tools).
• Produce high‑quality engineering calculations design drawings ...