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About Lumentum
Lumentum (NASDAQ: LITE) is a global leader in optical and photonic technologies that power the networks and infrastructure behind AI, cloud computing, and next-generation communications. Built on decades of photonics innovation, Lumentum delivers high-performance lasers, modules, and optical subsystems that enable scalable, energy-efficient data center connectivity, advanced telecom networks, industrial manufacturing, and sensing applications. Headquartered in San Jose, California, the company operates R&D, manufacturing, and sales facilities worldwide.
Learn more at www.lumentum.com.
Senior Engineer, Test Engineer
Location: Lumentum Thailand, Navanakorn – Pathum Thani
The Senior Test Engineer is a senior responsible for driving test engineering. This role working closely with Manufacturing, R&D, Product Engineering, Process Engineering, Quality, and Global Engineering teams to develop, execute, and improve test strategies that ensure product performance, reliability, and manufacturability throughout the product lifecycle.
Key Responsibilities
Test Engineering
Serve as the Test Engineer for assigned products, owning test strategy, coverage, and execution.
Define, develop, and maintain manufacturing and reliability test plans, test specifications, and test coverage requirements.
Act as the primary technical owner for test-related issues and escalations.
Reliability & Validation Engineering
Plan and execute reliability testing to validate product robustness against environmental, mechanical, and operational stress conditions.
Analyze test and reliability data to identify failure trends and improvement opportunities.
Support Design for Testability and Reliability (DfT / DfR) in collaboration with R&D and Product Engineering.
New Product Introduction (NPI) & Lifecycle Support
Execute product engineering activities for NPI, product transfer, and production ramp.
Support Design for Manufacturability, Assembly, Test, and Reliability in collaboration with R&D and Process Engineering.
Support product qualification, documentation release, and engineering change management.
Yield, Quality & Cost Performance
Support analysis and improvement of product yield, performance, and quality metrics.
Participate in root cause analysis and corrective actions for product-related manufacturing and field issues.
Contribute to cost reduction initiatives through product optimization and engineering changes.
Cross-Functional & Global Collaboration
Collaborate with local and global engineering teams to support product readiness and execution.
Communicate technical status, risks, and data-driven recommendations to stakeholders.
Support alignment across functions to ensure smooth manufacturing execution.
Safety, Health & Environmental (EHS) Responsibility
Comply with all EHS policies, procedures, and standards.
Actively support EHS initiatives and continuous improvement actions.
Promote safe work practices and contribute to a Zero Accident Culture.
Qualifications & Experience
Bachelor’s degree in Engineering (Electrical, Mechanical, Optical, Physics, or related field); Master’s preferred.
6–10+ years of experience in test engineering or reliability engineering within high-tech manufacturing environments.
Strong hands-on experience in manufacturing test development, execution, and data analysis.
Experience supporting reliability testing, qualification, and validation activities.
Background in optical, photonics, semiconductor, or electronics manufacturing is strongly preferred.
Strong analytical, problem-solving, and documentation skills.
Effective communication skills in English and ability to work in a global team environment.
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
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.
Skills Required
- Bachelor's degree in Engineering, such as Electrical, Mechanical, Optical, Physics, or a related field
- 6-10+ years of experience in test engineering or reliability engineering within high-tech manufacturing environments
- Hands-on experience in manufacturing test development, execution, and data analysis
- Experience supporting reliability testing, qualification, and validation activities
- Strong analytical, problem-solving, and documentation skills
- Effective communication skills in English
- Ability to work in a global team environment
- Master's degree
- Background in optical, photonics, semiconductor, or electronics manufacturing
Lumentum Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Lumentum and has not been reviewed or approved by Lumentum.
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Equity Value & Accessibility — Equity is positioned as a meaningful part of total compensation, with RSUs frequently framed as a valued component of offers. An employee stock purchase plan with a discount and look-back further reinforces equity access as part of rewards.
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Retirement Support — Retirement benefits are presented as a clear strength, with a 401(k) match and immediate vesting highlighted as supportive features. Auto-enrollment and match eligibility details indicate a structured retirement program for U.S. employees.
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Healthcare Strength — Multiple medical plan options are described, including PPO and HDHP/HSA choices and Kaiser in some locations, suggesting breadth and choice in coverage. Health and well-being programming is also characterized as part of a comprehensive benefits approach.
Lumentum Insights
What We Do
Lumentum (NASDAQ: LITE) is a market-leading designer and manufacturer of innovative optical and photonic products enabling optical networking and laser applications worldwide. Lumentum optical components and subsystems are part of virtually every type of telecom, enterprise, and data center network. Lumentum lasers enable advanced manufacturing techniques and diverse applications including next-generation 3D sensing capabilities. Lumentum is headquartered in San Jose, California with R&D, manufacturing, and sales offices worldwide. For more information, visit www.lumentum.com.
