Test Engineer

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 Test Engineer is responsible for developing, maintaining, and optimizing electrical and optical test processes for semiconductor laser devices within a high‑volume manufacturing environment. This role ensures product performance, yield, and reliability meet customer and internal requirements. The engineer works cross‑functionally with Process Engineering, Process Integration, Quality, and Operations to drive continuous improvement. Key Responsibilities Develop and validate electrical/optical test methods for laser diodes and other photonic devices. Define test plans, measurement conditions, and data structures for technology development and new product introductions. Characterize device performance including L-I-V curves, threshold current, slope efficiency, wavelength, spectrum, beam quality, and polarization. Required Qualifications Bachelor's or Master's degree in Electrical Engineering, Physics, or related field. 5+ years experience in semiconductor test, photonics, or laser diodes. Understanding of laser diode physics, optoelectronic measurement methods, and semiconductor device behavior. Proficiency in programming or automation (Python, LabVIEW, MATLAB, or similar). Strong problem-solving skills and ability to lead cross-functional teams. Knowledge of reliability testing (HTOL, TC, HAST, WHTOL) for optoelectronic components. Salary Range The salary range for this position is $100,000 - 140,000USD. Final compensation will be determined based on factors such as experience, skills, and qualifications. 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. Lumentum is illuminating the networks of tomorrow with advanced photonic technologies that enable AI, data centers, telecom, industrial, and sensing applications. As AI accelerates the global demand for bandwidth and energy efficiency, we deliver the building blocks that keep data moving reliably, efficiently, and at massive scale. Our optical products support AI and compute infrastructure, cloud and DCI environments, metro and long-haul networks, while our lasers drive breakthroughs in precision manufacturing and sensing. For nearly five decades, Lumentum has been at the intersection of light and innovation. What began as a vision with JDS Uniphase to harness the power of photonics has evolved into a global force driving the communication infrastructure of tomorrow. At Lumentum, we're building more than a business—we're building a team of passionate innovators whose drive to collaborate, create, and connect the world fuels everything we do. We are part of the AI technology revolution and we are illuminating the path forward. Headquartered in San Jose, California, we operate worldwide through a network of R D, manufacturing, and sales locations.