Principal Reliability Engineer

onsemi is seeking a principal reliability engineer to work in a fast-paced environment and be a key team member to accelerate the adoption of cutting-edge Gallium Nitride (GaN) products and technologies. The candidate will collaborate with multiple business units, multidisciplinary team focusing on GaN technology reliability assessment and product qualification. This role demands a proactive approach, electrical engineering / material /device physics background with an understanding of semiconductor reliability, and effective communication skills. This is an on-site role based in Scottsdale, Arizona. Responsibilities Work closely with design, technology development, and device engineering groups to define reliability test methodologies focused on early identification of reliability challenges during GaN technology development. Perform reliability data analysis and prepare internal/external reports for communication. Help develop technology and product qualification plans and work with global reliability teams to ensure effective and timely execution of test plans. Coordinate accelerated reliability stress tests to develop reliability acceleration models. Help drive failure analysis, root cause analysis to address failures (if any) Facilitate structured problem-solving by using industry-standard tools such as Is/Is-Not, Fault Tree Analysis, Fishbone, 5-why, and 8D methodology. Multitask and manage several qualifications simultaneously. Qualifications M.S. or PhD in Electrical Engineering, Material Science, Physics, or related discipline. 5 plus years in a comparable role. Understanding reliability testing methodologies (DHTOL, HTRB, HTGB, TC, THB, etc.) and failure analysis techniques. Knowledge of industry standards (JEDEC, AEC, AQG). Active participation in industry consortia and standards development is a plus. Strong analytical, problem-solving, and communications skills, including the ability to challenge ideas in a healthy manner. Fundamental understanding of statistical distribution (Weibull, lognormal etc.), experience with Minitab, JMP or other statistical tools for data analysis, and understanding of the science related to semiconductor fab processes, inspection, and failure analysis. Willingness to travel (US domestic and international) About Us onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world. More details about our company benefits can be found here: We are committed to sourcing, attracting, and hiring high-performance innovators, while providing all candidates a positive recruitment experience that builds our brand as a great place to work. onsemi is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, ancestry, national origin, age, marital status, pregnancy, sex, sexual orientation, physical or mental disability, medical condition, genetic information, military or veteran status, gender identity, gender expression, or any other protected category under applicable federal, state, or local laws. If you are an individual with a disability and require a reasonable accommodation to complete any part of the application process, or are limited in the ability or unable to access or use this online application process and need an alternative method for applying, you may contact View email address on click.appcast.io for assistance. Job Info Job Identification 2504591 Job Category Quality Posting Date 01/23/2026, 01:51 PM Degree Level Bachelors Job Schedule Full time Locations 5701 N Pima Road, Scottsdale, AZ, 85250, US #J-18808-Ljbffr