Company Description Egis is a leading global architectural, consulting, construction engineering, operations and mobility services firm. We create and operate intelligent infrastructure and buildings that both respond to the climate emergency and contribute to balanced, sustainable and resilient development. Our 20,500 employees operate across over 100 countries, deploying their expertise to develop and deliver cutting-edge innovations and solutions for clients. Through the wide range of our activities, we are central to the collective organisation of society and the living environment of citizens all over the world 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