Senior Process Engineer – Water Treatment

About the role

Assystem is seeking a Senior Process Engineer to lead the design and delivery of water and wastewater treatment projects across India. The role involves developing cost‑effective, compliant solutions for Water Treatment Plants, Sewage Treatment Plants, water reuse and industrial water treatment systems.

Key responsibilities

• Develop detailed process designs for WTP, STP, tertiary treatment, RO/UF and industrial water treatment systems.
• Perform hydraulic analysis, mass balances, equipment sizing and technology selection.
• Prepare and review engineering deliverables such as PFDs, P&IDs, hydraulic profiles, design reports and specifications.
• Coordinate with civil, mechanical, electrical, instrumentation, BIM/CAD and procurement teams.
• Review vendor submissions, support process simulations, troubleshooting, construction, commissioning and plant start‑up activities.

Required profile

• Bachelor’s degree in Chemical, Environmental, Civil (Environmental/Water Resources) or Process Engineering; Master’s preferred.
• 8–15 years of experience in detailed engineering and design of water treatment, wastewater treatment, water reuse, desalination or industrial water projects.

Required skills

• Process design and optimisation.
• Hydraulic calculations and equipment sizing.
• PFD & P&ID development.
• RO/UF membrane system design.
• Experience with GPS‑X, BioWin or similar process simulation tools.
• Commissioning support and performance testing.