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Larsen & Toubro

Manufacturing Engineer - Assembly, Testing & Integration

India>Tamil Nadu>Coimbatore CampusManufacturing & Production

Listed on Larsen & Toubro’s official careers site. Posted October 7, 2026. Check that it is still open and apply there.

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Job description

The Manufacturing Engineer (Assembly & Testing) defines, documents, and executes the assembly and testing requirements for high-precision Jigs & Fixtures used in Electronic Gadget Manufacturing. This role bridges engineering design and execution by converting drawings into assembly process sheets, check sheets, and cross-disciplinary verification protocols across mechanical, electronic, PLC, and wiring domains. Additionally, this role takes full ownership of end-to-end testing requirements both at the Factory (FAT) and at Regional Customer Sites (Chennai, Bangalore, Hosur) during final commissioning and line integration.CORE RESPONSIBILITIES1.

Assembly Documentation & Cross-Linkage VerificationProcess & Check Sheets

Develop Assembly Process Sheets (APS) and check sheets detailing tolerances, torque values, and assembly sequences.

Cross-Disciplinary Audit

Rigorously verify cross-linkages between mechanical structures, electronic sensors, PLC hardware, and wiring schemes prior to testing.2.

Factory Acceptance Testing (FAT) @ ToolroomFactory Dry Runs

Execute complete factory-level testing requirements, including dry runs of mechanical movements, pneumatic stroke limits, and basic PLC sequences.

Pre-Shipment Validation

Validate sensor repeatability, signal integrity, ESD grounding, and safety interlocks against drawing specs before packing for dispatch.3. Site Testing (SAT) & Support (Chennai, Bangalore, Hosur)Site Acceptance Testing (SAT):Lead on-site testing protocols at customer manufacturing facilities in Chennai, Bangalore, or Hosur under live production conditions.

Line Side Troubleshooting

Perform rapid debugging of mechanical alignment, wiring drops, or sensor logic errors to achieve successful First Article Inspection (FAI) and zero downtime.TECHNICAL REQUIREMENTS1. Education & Regional MobilityQualification & Experience:B.E. / B.Tech (3–6 yrs) or Diploma (7–10 yrs) in Mechanical, Production, or Mechatronics Engineering.

Regional Deployment

Willingness to travel to customer plants across Chennai, Bangalore, and Hosur for site testing, commissioning, and issue resolution.2.

Specialized Testing SkillsTesting & Schematic Literacy

Proficiency in reading GD&T drawings, 3D CAD, pneumatic circuits, electrical/PLC wiring diagrams, and executing test protocols.KEY PERFORMANCE INDICATORS (KPIs)Key Performance Indicator (KPI)Performance Target / Benchmark1. FAT First-Time Pass Rate100% clearance of Factory Acceptance Testing protocols prior to shipment.2. SAT & FAI Clearance100% successful site testing and approval during customer FAI at regional sites.3.

Cross-Linkage AccuracyZero wiring, mechanical, or logic mismatches identified during factory or site testing.4. Process & Test Sheet Compliance100% completion and archiving of Assembly and Testing Check Sheets.

Qualifications

Diploma in Mechanical Engineering (DME); Bachelor Program in Mechanical Engineering

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