[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Lumentum Holdings jobs](https://jobs.opennash.com/companies/lumentum-holdings/) · [Search jobs](/search/) Lumentum Holdings · Thailand - Pathumthani # Test Engineer Thailand - Pathumthani Operations Listed on Lumentum Holdings’s official careers site. Listed as of October 18, 2026. Check that it is still open and apply there. [Apply on Lumentum Holdings’s careers site →](https://lumentum.wd5.myworkdayjobs.com/LITE/job/Thailand---Pathumthani-Navanakorn/Test-Engineer_2026844) [OpenNash Jobs](https://jobs.opennash.com/) / [Lumentum Holdings](https://jobs.opennash.com/companies/lumentum-holdings/) / Test Engineer ## Job description 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! 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 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. ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Oct 11, 2026 - Last checked: Oct 18, 2026 - Listed for: 7 days - Location: Thailand - Pathumthani[Apply on Lumentum Holdings’s careers site →](https://lumentum.wd5.myworkdayjobs.com/LITE/job/Thailand---Pathumthani-Navanakorn/Test-Engineer_2026844) ## More jobs at Lumentum Holdings ### [Engineer Principal, Mfg Product](https://jobs.opennash.com/companies/lumentum-holdings/jobs/5e96a811b01362fb3d20/) Thailand - Pathumthani ### [Engineer Sr, Mfg Equipment](https://jobs.opennash.com/companies/lumentum-holdings/jobs/b9f4835e9ca61c2c90b2/) Thailand - Pathumthani ### [Engineer Sr, Mfg Process](https://jobs.opennash.com/companies/lumentum-holdings/jobs/3cc35b30044e1da68e9a/) Thailand - Pathumthani ## Similar jobs at other companies ### [Test Engineer – HSIO ATE Test Development & Characterization, Engineer to Senior Engineer](https://jobs.opennash.com/companies/qualcomm/jobs/cf40c94f18d6c1f73b5f/) Qualcomm · Hsinchu City, Taiwan ### [Internship - Wafer Test Engineer Operation Test Performance Sustaining](https://jobs.opennash.com/companies/infineon-technologies/jobs/7b5dfb585e1b852fddf1/) Infineon Technologies · Samut Prakan ### [Staff Software Test Engineer/Software Test Lead](https://jobs.opennash.com/companies/thermo-fisher-scientific/jobs/457bdc55eab7538b5b89/) Thermo Fisher Scientific · Singapore ### [Winter Co-op - Integration and Test Engineer - Test & Trials](https://jobs.opennash.com/companies/lockheed-martin/jobs/aef539818be0087a5a3a/) Lockheed Martin · Dartmouth, CAN ### [Winter Co-op - Integration and Test Engineer - Software Test](https://jobs.opennash.com/companies/lockheed-martin/jobs/77e17ddb1486685fedab/) Lockheed Martin · Dartmouth, CAN OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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