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Visual Inspection Engineer

Lumentum
September 28, 2026
Full-time
On-site
Sagamihara, Japan
Test Engineering Jobs, Level - Mid-Career

Job Title

Visual Inspection Engineer

Role Summary

Responsible for implementing and maintaining automated optical and AI-based visual inspection systems for semiconductor products at the Sagamihara site. Works with R&D, manufacturing, quality, IT, and equipment suppliers to improve appearance yield and deploy inspection systems across sites.

Experience Level

Mid-level. Years of experience not specified.

Responsibilities

Primary responsibilities include deploying, optimizing, and monitoring visual inspection systems and driving yield improvement.

  • Install, qualify, and maintain automated optical inspection (AOI) systems.
  • Develop and optimize rule-based inspection recipes.
  • Apply AI and machine learning techniques to visual inspection.
  • Analyze inspection data, monitor visual inspection yield, and implement corrective actions.
  • Deploy visual inspection systems and best practices to overseas manufacturing sites.
  • Collaborate with R&D, Manufacturing, Quality, IT, and equipment suppliers.

Requirements

Must-have skills are listed first; preferred skills follow.

  • Must-have: Experience implementing automated visual inspection using rule-based methods.
  • Must-have: Experience applying AI to visual inspection.
  • Experience with AOI system installation, qualification, and recipe development.
  • Experience analyzing inspection data and driving yield improvement.
  • Fluent Japanese; basic English for email, documentation, and online meetings.
  • Strong analytical and problem-solving skills.
  • Preferred: Experience deploying systems or processes across multiple manufacturing sites.
  • Preferred: Experience with Python, image processing, machine learning, or data analysis.

Education Requirements

Bachelor's, Master's, or Doctoral degree in engineering, science, computer science, or a related technical field; or equivalent practical experience.


About the Company

Company: Lumentum

Headquarters: Milpitas, California, United States

Lumentum develops optical and photonic products and subsystems for telecommunications, data centers, cloud computing and industrial applications, providing lasers, modulators, transceivers and test solutions that enable high-speed networking and advanced photonics.

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Date Posted: 2026-09-28