Semiconductor Laser Product Engineer

Lumentum · Japan - Sagamihara, Japan · full time · On site · August 04, 2026

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Posted August 04, 2026 · Read from Lumentum
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It's fun to work in a company where people truly BELIEVE in what they're doing!

We're committed to bringing passion and customer focus to the business.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

Responsibilities:

As a product engineer for semiconductor lasers (including DFB lasers and electro-absorption modulator integrated lasers), you will be engaged in the following activities:

  • Device characterization and performance analysis
  • Data-driven process improvement and yield enhancement
  • Root cause investigation and failure analysis
  • Statistical analysis and trend monitoring
  • (Depending on skill level) Development of data models or analysis automation, including machine learning.

Expected Background:

  • BSc, MSc, or PhD degree in a science or engineering discipline
  • Strong interest in semiconductor or optoelectronic devices, manufacturing, or data science
  • Logical, analytical thinker with persistence in tackling complex technical challenges

Expected Skill:

  • Experience with data analysis tools (Excel, Python, JMP, etc.)
  • Basic knowledge of statistical analysis and data visualization
  • Fluent Japanese speaker and Basic communication skills in English (reading/writing and participating in online meetings or email discussions)
  • Preferred Skills: Research or hands-on experience with semiconductor processes, optical devices, or electronic device characterizationPractical experience in yield management, quality improvement, or process optimization in manufacturingPractical experience in yield management, quality improvement, or process optimization in manufacturing

We are an equal opportunity employer and value diversity at our company.

We do not discriminate on the basis of race, religion, color, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.

Please contact us to request accommodation.

Employer
Lumentum
Location
Japan - Sagamihara, Japan · On site
Contract
full time