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Egis

Posted 27 Jul 2026

Hydraulic /Process Design Engineer (Used Water/ Sewerage / STP / Sewer lines)

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Employment
Full time
Posted
27 Jul 2026

About the role

Job Description
  • Perform hydraulic design of:
    • Sewerage collection networks
    • Rising mains and gravity sewer systems
    • Pumping stations
    • Sewage Treatment Plants (STPs)
  • Hydraulic calculations using Manning's equation and other relevant methods.
  • Design sewer sizes, slopes, flow velocities and hydraulic profiles.
  • Prepare Longitudinal Sections (L-Sections) and hydraulic grade lines.
  • Analyze wet weather flow, infiltration and inflow.
  • Design pumping systems and pump head calculations.

Process Design

  • Prepare process design calculations for STPs.
  • Selection and sizing of:
    • Screens
    • Grit Chambers
    • Equalization Tanks
    • Primary Clarifiers
    • Biological Reactors (ASP, MBBR, SBR, MBR etc.)
    • Secondary Clarifiers
    • Tertiary Treatment Units
    • Sludge Handling Systems
  • Prepare Process Flow Diagrams (PFDs).
  • Develop Process & Instrumentation Diagrams (P&IDs).
  • Design sludge treatment and reuse systems.
  • Prepare mass balance and hydraulic calculations.

Design Deliverables

  • Design Basis Report (DBR)
  • Hydraulic Calculation Reports
  • Process Design Reports
  • Design Memorandums
  • Technical Specifications
  • BOQ inputs
  • Tender drawings
  • Good for Construction (GFC) drawings
  • Design Review Reports
Qualifications

Master degree in Civil / Environmental Engineering / Public Health Engineering.

Additional Information

Minimum 10 years of relevant overall experience in design 

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