Applications Engineer (Power Management, DC-DC)
AMI Semiconductor
San Jose, CA · Posted October 5, 2026
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About the job
Are you passionate about power electronics and creating innovative power management solutions? Join onsemi's Power Management Division (PMD) and help us innovate a better future. Our technologies power AI data centers, physical AI systems, telecom infrastructure, industrial automation, and next-generation mobile devices for leading OEMs around the world.
PMD's PMIC & PoL Business Unit (BU) is seeking an experienced Applications Engineer to join our team. Our Applications Engineers are experts in DC-DC converter applications and play a key role in product definition, application validation during new product development (NPD), and customer technical support throughout the product lifecycle.
As a PMIC & PoL Business Unit Applications Engineer, you’ll collaborate with an experienced, co-located engineering team and leverage onsemi’s global support network to drive customer success. As a trusted technical advisor to customer application engineers (front-line support), field application engineers (FAE), and customers, you'll help solve complex power management challenges, accelerate product development, and contribute to the success of industry-leading products.
The San Jose Design Center is an onsemi Center of Excellence where you’ll work alongside Silicon Valley’s best engineers including PMD Business Unit leadership and engineering staff, as well as onsemi’s executive leadership, including the Analog & Mixed Signal Group (AMG) President, SVP Corporate Strategy, SVP Sales & Applications, SVP Operations, and SVP of Global Manufacturing. Additionally, PMD operates a state-of-the-art 3000 sq ft engineering lab with 50 benches and the latest test equipment.
Provide technical customer support for a portfolio of power management products including converters, controllers, and drivers (this position does not require frequent travel)
Support onsemi’s customer apps and FAEs with issues escalated to BU
Provide direct customer support for key customers
Utilize cross-functional teams such as FAE, Design, Quality, Manufacturing, and Product Engineering as needed
Create and present product training material to onsemi’s technical support community, including FAE and Sales
Author and publish application notes and knowledge base articles
Support NPD Applications Engineering activities
Strategize with Product Definition and Design Leads on new product requirements
Represent BU Applications during all phases of NPD
Create customer-facing collateral including EVB, GUI, User Guide, model, design aid, and datasheet
Validate new products for application functionality
BSEE or MSEE (or equivalent) with a focus on power electronics and DC-DC conversion
3 to 10+ years minimum professional experience with switching power converters, controllers, and drivers
Proficient with simulation tools, especially SIMPLIS
Schematic capture and PCB layout experience, Altium preferred (including library management)
Effective circuit debug skills in an engineering lab
Bench test equipment automation development (nice to have)
Strong written and verbal communication skills
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:
https://www.onsemi.com/careers/career-benefits