AOI Technician

Cavalier Wireless; Coimbatore District; On-site; INR 167,000 - 279,000; Full time

Job summary

Cavalier Wireless in Coimbatore is seeking an AOI Technician to support production and quality. The role focuses on operating AOI machines, inspecting PCB assemblies, and ensuring adherence to quality standards.

You will select inspection programs, verify results, and document defects while coordinating with rework teams. Ideal candidates have experience with AOI in SMT/PCBA environments and a strong eye for detail, safety, and process improvement.

Qualifications

• ITI / Diploma / Engineering in electronics or electrical required.
• Experience operating AOI machines in SMT/PCBA manufacturing preferred.
• Familiarity with defect classification and quality documentation.

Responsibilities

• Operate AOI machines to inspect PCB assemblies for defects.
• Identify missing or misaligned components and solder issues.
• Select AOI programs based on PCB model and production needs.
• Verify defects and distinguish real issues from false calls.
• Maintain inspection reports and defect logs accurately.
• Ensure traceability and proper binning of PCBs.
• Coordinate with SMT/QA for rework and corrective actions.
• Load programs during changeovers and verify setup.
• Perform routine machine cleaning and basic checks.

Skills

AOI operation

SMT/PCBA knowledge

Defect identification

Inspection documentation

ESD and safety

Attention to detail

Problem solving

Education

ITI / Diploma / Engineering in Electronics or Electrical

Tools

AOI machines

Inspection programs

Job description

• Position: AOI Technician
• Department: Production / Quality
• Industry: Electronics Manufacturing / EMS
• Experience: 2 - 5 Years
• Qualification: ITI / Diploma / Engineering in Electronics or Electrical

Key Responsibilities

• AOI Machine Operation: Operate Automated Optical Inspection (AOI) machines to inspect PCB assemblies for component placement and soldering defects.
• PCB Inspection: Identify missing components, misaligned components, wrong components, polarity issues, solder bridges, insufficient solder, and other assembly defects.
• Program Selection: Select the correct AOI inspection program based on the PCB model and production requirements.
• Defect Verification: Review AOI images and alerts to distinguish actual defects from false calls.
• Quality Inspection: Ensure PCB assemblies meet established quality standards before proceeding to the next production stage.
• Defect Classification: Identify, classify, and record defects according to approved inspection criteria.
• Defect Segregation: Segregate defective or suspected PCBs and prevent nonconforming products from moving to the next stage.
• First-Piece Inspection: Perform first-piece inspection and verify inspection results after product changeovers or program changes.
• Production Monitoring: Complete inspections within the required cycle time while maintaining inspection accuracy and production targets.
• Program Changeover: Load the appropriate AOI program during product changeovers and verify the inspection setup before production resumes.
• Rework Coordination: Communicate detected defects to the SMT production or rework team and verify corrective actions as required.
• Documentation: Maintain inspection reports, defect logs, rejection records, and production data accurately.
• Traceability: Ensure proper barcode scanning, PCB identification, and traceability of inspected products.
• Machine Maintenance: Perform routine machine cleaning and basic checks and report equipment issues to the maintenance team.
• ESD and Safety: Follow ESD precautions, PPE requirements, and workplace safety procedures while handling PCBs.
• 5S: Maintain cleanliness and organization at the inspection workstation.
• Abnormality Reporting: Escalate recurring defects, machine errors, and unusual inspection results to the Production Supervisor or Quality team.
• Continuous Improvement: Support defect reduction, root-cause analysis, and process improvement activities by sharing inspection data.
• Training: Stay updated on AOI machine operation, inspection standards, defect identification, and quality procedures.

Required Skills

• 25 years of hands‑on experience operating AOI machines in SMT/PCBA manufacturing.
• Good knowledge of SMT processes and PCB assembly.
• Ability to identify component placement and soldering defects.
• Experience reviewing AOI images and verifying false calls.
• Basic knowledge of inspection programs, defect classification, and quality documentation.
• Understanding of ESD precautions, 5S, and production safety.
• Good attention to detail and problem-solving skills.

Preferred Experience

• Experience with post-reflow AOI inspection.
• Exposure to SPI (Solder Paste Inspection) and other SMT inspection processes.
• Experience in an Electronics Manufacturing Services (EMS) environment.