Assystem provides engineering, project management and digital services to optimise the performance and safety of critical infrastructure throughout its lifecycle.
The company first came to India having acquired Stup Consultants Pvt Ltd in 2021 and L&TIEL; in 2024. The company combines its globally recognised expertise in complex project management, with deep-rooted local experience cross full spectrum of infrastructure – from energy, transportation and urban development to water. Today, Assystem has a strong community of 1,500+ multidiscipline engineering experts connected across 8 offices in India.
The Assystem Group is one of the world’s leading independent nuclear engineering companies, ranked among the top three globally, with 60 years of experience in complex and highly regulated environments. With 8,000 experts across 13 countries, Assystem supports the development of low-carbon energy.
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Water supply & Sewerage Design Engineer for Design Team, responsible for the planning, hydraulic design, detailed engineering, and implementation support of water supply, sewerage, water treatment, and wastewater treatment projects.
Water Supply Engineering
Plan and design water supply systems from source to consumer.
Perform water demand assessments and population projections.
Design:
Raw and treated water transmission mains
Water distribution networks
Carry out hydraulic calculations, network optimization, and pressure management studies.
Sewerage Engineering
Design gravity sewer networks, rising mains, force mains, and pumping stations.
Prepare sewer network layouts, longitudinal profiles, and hydraulic calculations.
Conduct sewer capacity assessments and rehabilitation studies.
Develop sewer network models using SewerGEMS, SewerCAD, or equivalent software.
Water Treatment Engineering
Design conventional and advanced Water Treatment Plants (WTPs).




Prepare process calculations and treatment unit sizing.
Design:
Chemical Dosing Systems
Sludge Handling Facilities
~ Support commissioning, performance testing, and process optimization.

Wastewater Treatment Engineering
Design Sewage Treatment Plants (STPs) using technologies such as:
Design tertiary treatment and treated wastewater reuse systems.
Prepare process design calculations, layouts, and equipment specifications.
Support commissioning, troubleshooting, and process performance assessment.
Detailed Engineering
Prepare Detailed Engineering Designs (DED) and Valuable-for-Construction (GFC) drawings.
Construction Drawings
Coordinate with multidisciplinary teams including Civil, Structural, Mechanical, Electrical, and Instrumentation disciplines.
Project Documentation & Tendering
Design Basis Reports
Construction Support
Provide technical support during construction and commissioning.
Conduct site inspections and design reviews.
Resolve engineering and construction-related issues.
Support testing, commissioning, and project handover
Bachelor's Degree in Civil Engineering, Environmental Engineering, Public Health Engineering, or related discipline.
Master's Degree in Environmental Engineering.
Experience
Minimum 5 years of relevant experience in water and wastewater infrastructure projects.
Experience in Design Consultancy, EPC, Design-Build, DBO, or Municipal Infrastructure Projects.
Experience in JJM, AMRUT, Smart Cities, Industrial & Urban Water Supply, and Sewerage Projects will be preferred.





Water Supply
Water demand forecasting
Hydraulic design of transmission and distribution systems
Reservoir and pumping station design
Pipeline design and optimization
Sewer network design
Sewer pumping station design
Rising main design
Hydraulic profiling and network analysis
Water & Wastewater Treatment
WTP process design
STP process design
Process calculations and unit sizing
Detailed Engineering
Preparation of engineering drawings and design packages
Vendor drawing review and design coordination
Software Requirements
AutoCAD
MS Excel
MS Project
Civil 3D
CPHEEO Water Supply Manual
CPHEEO Sewerage & Sewage Treatment Manual
Environmental Regulations and Pollution Control Requirements
AWWA and international water industry standards
Strong hydraulic modeling and design skills
Technical report writing and documentation skills
Project coordination and stakeholder management
Ability to work independently and manage multiple projects
Commitment to quality, safety, and sustainable engineering practices
Candidates with proven experience across Water Supply Systems, Sewerage Networks, Water Treatment Plants (WTPs), Sewage Treatment Plants (STPs), Hydraulic Modeling, and Detailed Engineering will be highly preferred.
Experience in EPC/Turnkey Infrastructure Projects
Design and commissioning of WTPs and STPs
Surge Analysis and Hydraulic Transient Studies
BIM and GIS-based infrastructure design
Water Reuse and Circular Water Economy Projects
Design management and multidisciplinary project leadership experience
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

📌 Design Engineer (Water Treatment) (Bengaluru)
🏢 Assystem
📍 Bengaluru