Process Senior Lead Manager

L&T Technology Services Ltd.; Chennai; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

L&T Technology Services Ltd. is seeking a Process Engineer with deep expertise in desalination and conventional water treatment plant design for our Chennai office.

The ideal candidate will own complete process design including intake, pretreatment, RO, remineralization, brine management and sludge handling, and will contribute to pre-bid and post-bid engineering deliverables. The role requires a Master’s or Bachelor’s degree in Chemical or Environmental Engineering and 12–20 years of relevant

Qualifications

• Master's or Bachelor's in Chemical or Environmental Engineering with desalination experience.
• Design experience for Sea Water Desalination Plants (SWDP) and conventional WTP.
• Experience in pre-bid and post-bid engineering deliverables.

Responsibilities

• Complete process design for SWDP including intake, pretreatment, RO and brine management.
• Design and select processes for WTP, including EDI, CPU, and demineralization.
• Prepare technical data sheets, plant layouts, PFD/P&ID and other design deliverables.
• Support RFQ/vendor evaluation and technical bid proposal.
• Advice on compliance with codes/standards for desalination projects.

Skills

Desalination design

Water treatment plant design

Process design

Tendering & bid prep

Technical documentation

Mass balance

Education

MTech in Chemical Eng or Env Eng

BTech/B.E. in Chemical Eng or Env Eng

Job description

LNT/PSLM/1909495WET-Water & Effluent Treatment ICChennai Head Qrs.Posted On 29 Oct 2026End Date 27 Apr 2027Required Experience12 - 20 yearsSkillsKnowledge & Posting LocationDesalinationMinimum QualificationMaster of Technology (MTech)Job DescriptionProcess Engineer with expertise in Desalination Plant and conventional Water Treatment Plant The candidate should be with a Master degree or Bachelor degree in Chemical Engineering or Environmental Engineering with a experience of design the Desalination Plant. The person may be engaged in a Water Treatment Company with hands on experience in designing a Desalination Plant and conventional water treatment plant Complete process design of the following: Sea Water Desalination Plant (SWDP): Design of Desalination Plant with Intake, Pretreatment, Ultra-filtration, Reverse Osmosis, Remineralization, Brine management and sludge treatment. 1.1 Sea Water Intake system: Various types of Intake System 1.2 Pretreatment system: including Dissolved Air Floatation (DAF); media filtration like DMF (Dual Media Filter), MMF (Multi Media Filter); membrane filtration like UF (Ultra Filtration) etc. 1.3 Reverse Osmosis system: including sea water reverse osmosis with , brackish water reverse osmosis. 1.4 Energy recovery system: including system design with ERT (Energy Recovery Turbine), Pressure Exchanger and Work Exchanger 1.5 Remineralization: including Limestone Bed Filtration with carbon dioxide dosing. 1.6 Brine management system: including intermittent brine storage, utilization of brine in the process scheme and disposal of brine back to sea. 1.7 Sludge management system: including separation, dewatering and disposal of sludge generated in the process scheme. 1.8. Metalloid removal: including removal of Boron by Ion exchange technology. Conventional Water Treatment Plant (WTP): 2.1 Conventional WTP with clarifier, filtration and disinfection. 2.2 Process plant WTP with demineralization, electro-deionization (EDI), condensate polishing unit (CPU, both high pressure & low pressure) 2.3 Design and selection of processes for handing cyanobacteria and cyanotoxin. 2.4 Design and selection of processes for removal of color, odor, heavy metal, micropollutants etc. Person should be able to generate design deliverables for complete pre-bid engineering (Tendering) and post-bid engineering (Basic engineering and Detail Engineering): Process Design Calculation Hydraulic Calculation Mechanical Equipment List Civil Unit List Electrical Load List Input for Instrument range Process Flow Diagram Mass Balance Diagram Hydraulic Flow Diagram Process & Instrumentation Diagram Plant Layout General Arrangement Drawing Hazardous Area Classification Drawing Chemical, Power and Utility Guarantee including calculation of SPC (Specific Power Consumption) for the plant. Preparation of RFQ Vendor offer Evaluation & Selection Technical Data Sheets Process Design Basis Report Operation and Control Philosophy Scenario analysis Input for Operation and Maintenance Philosophy. Input for Financial Modelling in BOOT/ BOO projects like Correction factors, correction curves etc. Person should be acquainted with following codes/ standards/ manuals: Codes and standards as applicable for the desalination and water treatment projects in Middle Eastern countries, African countries and South East Asian countries. Person should be conversant with the following system design tools: Relevant design tools for Water Treatment and Desalination Plant.