Laser Design Engineer

Lumentum · Japan - Sagamihara, Japan · full time · On site · September 08, 2026

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Posted September 08, 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!

Job Description

Laser design engineer for InP semiconductor laser, especially for DFB laser and high-speed EML.

Responsibilities:

  • Develop new or enhanced laser design with semiconductor material physics, optical science and high-speed design technologies.
  • Responsible for the stable volume production and the improvement of productivity
  • Product design of DFB laser and EML for yield improvement and cost reduction
  • Design and fabricate the necessary parts for evaluation, such as submounts, as needed.
  • Evaluate fabricate chips, analyze evaluation data and write reports of them.
  • Attend a meeting to explain and discuss the results.

Expected Background:

  • BSc, MSc, PhD degree in electronics, electrical engineering, physics, or a related equivalent technical field.
  • Bachelors and 6+ years of work experience, Masters and 4+ years of work experience. PhD. no relevant work experiences.

Expected Skill:

  • Knowledge of compound semiconductor such as InP material system and material physics.
  • Experience of semiconductor laser design and development with at least 1-2 years’ experience.
  • Experience of product design for yield improvement and cost reduction of semiconductor laser diode
  • Knowledge of semiconductor device reliability
  • Fluent Japanese speaker and intermediate English skill
  • Basic PC skills, such as MS Excel, PowerPoint, and Word

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