[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-Staff_20251925) [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! The primary role of this position is to support manufacturing of Optical Circuit Switch in our factory in Thailand. The successful candidate would provide first level support under the direction of the manufacturing engineering group in Ottawa. The position therefore requires working some evenings for regular calls to North America. In addition, the position would assist with new product introduction, be responsible for test and test process maintenance, and provide a critical technical interface into the factory while working to improve process yields and quality. ### Responsibilities Provide first-level engineering support for optical and electronic test issues in OCS production, including troubleshooting, root-cause analysis, and implementation of corrective actions. Set up, configure, validate, and maintain optical/electronic test equipment to ensure stable and accurate test operations aligned with Lumentum standards. Own and sustain test processes, monitor test data trends, and drive yield improvement and defect reduction initiatives. Support new product introduction (NPI), including test plan validation, pilot builds, equipment readiness, and alignment with global engineering requirements. Collaborate regularly with Manufacturing Engineering in Ottawa through cross-site calls to resolve issues, standardize testing methods, and drive continuous improvement activities. Prepare and maintain test documentation such as work instructions, test plans, process controls, and engineering change updates. Coordinate with Production, Quality, and R&D teams to ensure test readiness, production stability, and timely issue resolution. Collect, analyze, and prepare test data reports to support engineering decisions, yield analysis, and process optimization. ### Qualifications Bachelor’s degree or higher in Electrical Engineering, Electronics, Optics, Physics, Mechatronics, or a related technical field. 5-10 years’ work experience in high technology work environment, optical and/or electronics in progressive roles. Knowledge and experience with manufacturing (assembly and testing) of high end optical blades and circuit card assemblies. Demonstrated skills/knowledge of complex PCBAs, EDFAs and ROADMs. Experience in the setup and configuration of electronic and optical test sets and equipment is essential. Ability to work and communicate orally and in writing in English and Thai. Demonstrated ability to work across geographical boundaries on a worldwide basis with R&D and Manufacturing groups. Knowledge and experience in test and testing programming in VB6/VB.net. Proven ability to work without direct supervision. Able to demonstrate strong problem solving skills. Hands-on debug skills of mixed analog/digital PCBA’s and optical assemblies. 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. ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Jul 12, 2026 - Last checked: Oct 18, 2026 - Listed for: 98 days - Location: Thailand - Pathumthani[Apply on Lumentum Holdings’s careers site →](https://lumentum.wd5.myworkdayjobs.com/LITE/job/Thailand---Pathumthani-Navanakorn/Test-Engineer-Staff_20251925) ## 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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