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Location
In office (Sagamihara)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Oct 21, 2026. Lumentum scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Lumentum is an American photonics company separated from JDS Uniphase in 2015 that makes the optical components carrying data through networks and between data centre systems. Its business has been transformed by artificial intelligence build-out: the optical transceivers and laser components that connect accelerators inside a cluster are now in far shorter supply than the networking equipment they plug into. Headquartered in San Jose and listed on Nasdaq, it also supplies industrial and consumer lasers, and it acquired Cloud Light in 2023 specifically to add high-speed transceiver manufacturing capacity for cloud customers.

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!

Main Responsibilities

  • Develop core technologies for next-generation optical devices that enable advanced performance and/or scalable architectures.
  • Proactively propose new ideas and concepts, and lead development activities by collaborating with and engaging relevant internal stakeholders.
  • Alternatively, contribute as a deep technical specialist by continuously advancing expert knowledge in a specific domain and disseminating it within the organization.
  • Respond to rapid changes in the industry by flexibly adapting development strategies and technical directions as needed.
  • Bridge advanced device concepts with practical packaging by considering manufacturability and long-term scalability.
  • Collaborate across functions such as device design, process engineering, and evaluation to accelerate technology development.
  • Contribute to shaping mid- to long-term technology directions based on technical insight and industry trends.

Qualification & Skills

  • BSc, MSc, PhD degree in electronics, electrical engineering, physics, or a related equivalent technical field.
  • Scientific experiment planning, execution, and analysis
  • Documentation of experimental result and its analysis
  • 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.

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