Manufacturing Engineer - Assembly, Testing & Integration

Larsen & Toubro; Coimbatore District; On-site; INR 600,000 - 750,000; Full time

Job summary

Larsen & Toubro is seeking a Manufacturing Engineer (Assembly & Testing) to define and execute assembly and testing requirements for high-precision jigs and fixtures used in electronic gadget manufacturing. The role bridges design and execution by converting drawings into APS, check sheets, and verification protocols across mechanical, electronic, PLC, and wiring domains.

The incumbent will own end-to-end testing at Factory FAT and regional customer sites (Chennai, Bangalore, Hosur) during final

Qualifications

• Must hold B.E./B.Tech or Diploma in relevant engineering disciplines with 3–10 years experience.
• Willingness to travel to customer plants in Chennai, Bangalore, and Hosur for site testing and commissioning.
• Ability to read GD&T drawings, 3D CAD models, pneumatic circuits, and electrical/PLC wiring diagrams; execute test protocols.

Responsibilities

• Develop Assembly Process Sheets (APS) and check sheets detailing tolerances, torque values, and sequences.
• Cross-linkage verification between mechanical, electronic, PLC, and wiring domains.
• Perform FAT at Toolroom and SAT/FAI at customer sites under live production conditions.
• Lead on-site testing protocols and troubleshooting to achieve first article approvals and zero downtime.
• Validate sensor repeatability, signal integrity, ESD grounding, and safety interlocks before dispatch.

Skills

GD&T reading

3D CAD

Pneumatic circuits

Electrical/PLC wiring diagrams

Test protocols

Cross-disciplinary verification

Education

B.E./B.Tech in Mechanical/Production/Mechatronics

Diploma in Mechanical/Production/Mechatronics

Tools

PLC hardware

3D CAD software

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 Responsibilities

• Assembly Documentation & Cross-Linkage Verification
• Process & 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.
• Factory Acceptance Testing (FAT) @ Toolroom
• Factory 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.
• 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 Requirements

• Education & Regional Mobility
• Qualification & 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.
• Specialized Testing Skills
• Testing & 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 / Benchmark

• FAT First-Time Pass Rate

100% clearance of Factory Acceptance Testing protocols prior to shipment.

• SAT & FAI Clearance

100% successful site testing and approval during customer FAI at regional sites.

• Cross-Linkage Accuracy

Zero wiring, mechanical, or logic mismatches identified during factory or site testing.

• Process & Test Sheet Compliance

100% completion and archiving of Assembly and Testing Check Sheets.