Principal Test Engineer

Lumentum

📍 Sagamihara, Kanagawa, Japan 💼 Full time 🕒 Posted May 30, 2026

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Job Description

It's fun to work in a company where people truly BELIEVE in what they're doing!
Job Summary: We are seeking an experienced and dynamic Test Engineer for our Test Development in Japan for EML and CW laser product lines. This role will be responsible for the development and implementation of world-class testing methodologies and tools to ensure product excellence. The ideal candidate will have extensive experience in driving innovation in testing practices, scaling testing operations for complex products in a fast-paced environment.
Key Responsibilities:
Develop, implement, and release to factory test strategies, processes, and tools that meet the required speed, scale, cost and quality for EML and CW laser production
Perform statistical data analysis and trouble shoot potential root causes for yield enhancement
Identify and drive initiatives for test automation, process improvements, test time and cost reductions, and yield improv...
            

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Job Details

Location Sagamihara, Kanagawa
Job Type Full time
Category Engineers
Posted Date May 30, 2026
Application Deadline July 09, 2026