Water Resources Engineer

Recruiter:

Assegai

Job Ref:

DUR000327/LL

Date posted:

Monday, October 13, 2025

Location:

Sandton, South Africa

Salary:

550000 Annually

SUMMARY:
Well respected engineering consultancy is looking for a Water Resources Engineer with around 5 - 7 years experience in hydrological analysis and hydraulic analysis and designs, to join their Engineering Hydrology Division in Johannesburg.

POSITION INFO:
Requirements:

BSc Eng (civil) / BEng (civil)
Preferably MSc or MEng in Hydrology and Hydraulics
5 to 7 years’ relevant experience aligned with the responsibilities listed below
Valid South African driver’s license.
Software:
- General: Word, Excel, PowerPoint, Projects, AutoCAD (Civil 3D)
- Specialised: GoldSim, PCSWMM, HEC-RAS, UPFLOOD, WRSM2005, Flo-2D, QGIS/ArcGIS, ModelMaker
- Advantageous: Programming / coding experience (Visual Basic, Python)
- Experience in the development and assessment of water balances using GoldSim is a requirement for this position.

Duties and Responsibilities include:
To carry out hydrological analyses focused mainly on, but not limited to:

Acquisition and processing of hydrological data (rainfall, runoff, evaporation)
Hydrological parameters (e.g., MAP, MAE, MAR)
Catchment delineation
Surface water runoff calculations (e.g., MAR, seasonal and dry weather flows) for site-specific catchment areas
Flood peak runoff calculations (applying industry-acceptable deterministic, statistical, empirical, and dynamic modelling methods)
Water balance analysis and modelling (principles of conservation of mass, including dam sizing)
Reservoir and canal routing (dynamic water level analysis)
Floodline determination
Surface water impact assessment
Flood risk and flood hazard assessment

Hydraulics:
Carry out hydraulic analyses and designs focused mainly on, but not limited to:

Water surface backwater profiling (applying the principles to be used in floodline modelling)
Flood attenuation (whether in reservoirs or upstream of culverts, applying the principles to determine attenuated volumes, reduced release peak flows, etc.)
Canal flow (applying hydraulic theory and principles for free surface flow)
Spillway design (hydraulic design and optimisation with flood routing and attenuation calculations)
Energy dissipating and erosion control structures
Dam break analysis

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