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Test Engineer

Lumentum
August 29, 2026
Full-time
On-site
Pathum Thani, TH
Test Engineering Jobs, Level - Mid-Career

Job Title

Test Engineer

Role Summary

The Test Engineer will develop, execute, and improve manufacturing and reliability test strategies to ensure product performance, reliability, and manufacturability across the product lifecycle. This role works closely with Manufacturing, R&D, Product and Process Engineering, Quality, and global engineering teams.

Experience Level

Mid-level. The posting requests approximately 2–5 years of experience in test or reliability engineering within high‑tech manufacturing.

Responsibilities

Drive test engineering, reliability validation, and support new product introduction and production ramp for assigned products.

  • Own test strategy, test coverage, and execution for assigned products; define and maintain test plans and specifications.
  • Serve as primary technical owner for test-related issues and escalations.
  • Plan and execute reliability testing; analyze test and reliability data to identify failure trends and improvements.
  • Support design for testability and reliability with R&D and product engineering.
  • Execute NPI activities, product transfers, production ramp, qualification, and engineering change management.
  • Support yield, quality, and cost-improvement initiatives; participate in root cause analysis and corrective actions.
  • Collaborate with local and global teams; communicate technical status, risks, and data-driven recommendations.
  • Comply with and promote EHS policies and safe work practices.

Requirements

Key skills and experience required or strongly preferred for successful performance in this role.

  • Must-have: 2–5 years of experience in test engineering or reliability engineering in a high‑tech manufacturing environment.
  • Must-have: Hands-on experience in manufacturing test development, execution, and test data analysis.
  • Must-have: Experience supporting reliability testing, qualification, and validation activities.
  • Must-have: Strong analytical, problem-solving, and documentation skills; effective English communication for global teams.
  • Nice-to-have: Experience in optical, photonics, semiconductor, or electronics manufacturing.

Education Requirements

Bachelor's degree in Engineering (Electrical, Mechanical, Optical), Physics, or a related field is required; Master’s degree preferred.


About the Company

Company: Lumentum

Headquarters: Milpitas, California, United States

Lumentum develops optical and photonic products and subsystems for telecommunications, data centers, cloud computing and industrial applications, providing lasers, modulators, transceivers and test solutions that enable high-speed networking and advanced photonics.

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Date Posted: 2026-08-28