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Lumentum

Supplies photonic components for networks

Laser Semiconductor Engineer

Hardware EngineeringConfirmed live in the last 24 hours
Full-timeSagamihara, Kanagawa, JapanNo salary listedIn-person

About the Job

Requirements

  • A BSc, MSc, or PhD in electronics, electrical engineering, physics, or an equivalent technical field.
  • For a bachelor's degree, at least 6 years of work experience; for a master's degree, at least 4 years of work experience; no relevant work experience is specified for a PhD.
  • Knowledge of compound semiconductors, such as the InP material system, and material physics.
  • Experience in semiconductor laser design and development, including high-power DFB laser design, optical simulation, and thermal simulation, with at least 2–3 years of experience.
  • Experience in semiconductor laser diode product design for yield improvement and cost reduction.
  • Experience analyzing large volumes of experimental data using JMP or similar statistical analysis tools.
  • Knowledge of semiconductor device reliability.
  • Fluent Japanese and intermediate English language skills.
  • Basic computer skills, including Microsoft Excel, PowerPoint, and Word.

Responsibilities

  • Develop DFB laser structures for high optical output power, high efficiency, and high reliability based on semiconductor material physics and optical science.
  • Design DFB laser products to improve yield and reduce cost.
  • Support stable volume production and continuous productivity improvement.
  • Design and fabricate necessary evaluation parts, such as submounts, as needed.
  • Evaluate fabricated chips, analyze evaluation data, and prepare technical reports.
  • Attend meetings to explain and discuss results.

Desired Qualifications

  • Programming skills, such as Excel VBA/macros and Python.

About the Company

Lumentum

Supplies photonic components for networks

Lumentum designs and manufactures optical and photonic components for data networks, data centers, sensing, and manufacturing, including diode lasers. Its devices convert electronic signals into light to enable high-speed data transmission and 3D sensing. The company differentiates itself with a broad, high-volume photonics platform that combines silicon photonics, laser diodes for 3D sensing, and integrated optical components for cloud, networking, and manufacturing, supporting large-scale deployment. Its goal is to increase the speed, flexibility, and efficiency of communication networks and sensing systems to meet growing cloud data traffic.

Company size
1,001-5,000
Company stage
IPO
Headquarters
San Jose, CA
Founded
2015

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