Assistant Manager (Design) - Piping

Larsen & Toubro (L&T); Zone 12 Alandur; On-site; INR 1,500,000 - 2,300,000; Full time

Job summary

Larsen & Toubro (L&T) in India seeks a Senior Mechanical Design Engineer to design, develop, and integrate shipboard piping systems for naval and commercial projects. You will prepare detailed engineering deliverables and ensure compliance with customer specs and international standards.

You will work with Hull, Electrical, HVAC and Machinery teams, perform hydraulic calculations, pipe sizing, and BOM development, and support production during installation and sea trials, driving continuous

Qualifications

• BE/B.Tech in Mechanical Engineering.
• 6–8 years of mechanical design experience in shipbuilding/marine/defence.
• Experience with piping systems design and shipboard integration.
• Familiarity with 3D modelling tools Cadmatic, Ship Constructor, AVEVA Marine.
• Knowledge of Classification Society Rules and IMO Regulations.

Responsibilities

• Design, development, and integration of shipboard piping systems.
• Prepare system schematics, piping layouts, isometrics, BOM and design calculations.
• Perform hydraulic calculations and pipe sizing with software.
• Coordinate with Hull, Electrical, HVAC and Machinery teams.
• Respond to tenders and prepare BID documents.

Skills

Shipbuilding

Marine

Piping systems

Mechanical Design

3D modelling

Cross-functional coordination

Education

BE/B.Tech (Mechanical)

Tools

Cadmatic

Ship Constructor

AVEVA Marine

Job description

6 to 8 Years Job Summary:

Responsible for Design, development, and integration of shipboard piping systems for naval and commercial shipbuilding projects. The role involves preparing detailed engineering deliverables, ensuring compliance with customer specifications and international standards, coordinating with multidisciplinary teams, supporting production during execution and driving continuous improvement through engineering excellence and digitalization.

Key Responsibilities:

• Knowledge of Classification Society Rules (ABS, DNV, LR, IRS, BV, etc.), Indian Navy Specifications, IMO Regulations, and applicable shipbuilding standards.
• Design, development, and integration of shipboard piping systems including Sea Water, Fresh Water, Fuel Oil, Lube Oil, Hydraulic Oil, Compressed Air, Fire Main, Bilge & Ballast, Black & Grey Water, Exhaust, Air vent and Sounding Systems.
• Experience in Pipe routing using 3D Modelling tools such as Cadmatic, Ship Constructor, AVEVA Marine, or equivalent marine design software.
• Experience in resolving clashes in 3D environment and optimize equipment and piping arrangements.
• Preparation of System Schematics, Piping Layouts, Isometrics, End Connection Drawings, Installation Drawings, Pipe Spool drawings and BOM and Design Calculations.
• Experience in hydraulic calculations, pipe sizing, pressure drop calculations, pump head calculations, flow balancing using software like Pipe Flow, Aft Fatham etc.
• Good understanding of Ship General Arrangement (GA), machinery spaces, compartment layouts, equipment positioning, and interdisciplinary coordination with Hull, Electrical, HVAC, and Machinery teams.
• Preparation of technical specifications, procurement specifications, datasheets, requisitions, and technical evaluation of vendor offers.
• Experience in basic understanding and integration of piping systems with pumps, heat exchangers, filters, valves, tanks, treatment plants, compressors, and associated auxiliaries.
• Exposure to shipyard construction activities, onboard installation, commissioning, harbour acceptance trials, and sea trials.
• Responding to tenders, sending enquiries and getting technical offers from vendors, preparing BID documents like write-up, estimation and BoM, etc

Qualification and Required Skills:

• BE/B.Tech (Mechanical)
• 6 to 8 Years
• Mechanical Design Engineering
• Shipbuilding / Marine / Offshore / Heavy Engineering /Defence Projects (Preferred)