Job DescriptionThe Power Applications Engineer will drive the development, validation, and adoption of onsemi's eFuse, Hot-Swap, and power-switch solutions across AI, Cloud, Networking, and advanced-computing platforms. In this role, you will develop and refine performance-verification infrastructure to ensure robust, high-quality power-tree designs. You will also work with customers to optimize onsemi content within their systems and highlight the breadth and value of our power-technology portfolio.
This role focuses on the architecture, modeling, and deployment of 48V/54V and 400V/800V power-delivery systems used in AI servers and data-center infrastructure. Emphasis areas include power-tree design, power-distribution optimization, and integrated protection strategies (eFuse, Hot-Swap, power-switch control). Success requires a hybrid skill set spanning power electronics, protection methodologies, and system-level design for high-density GPU/AI compute platforms and large-scale power-delivery clusters.
You will work closely with data-center architects, power-electronics development teams, and customers deploying next-generation AI compute infrastructure, serving as a technical interface between system requirements and onsemi's product offerings.
Responsibilities - Develop reference designs, evaluation platforms, and validation infrastructure for eFuse/Hot-Swap and power-switch solutions.
- Perform system modeling, power-tree analysis, and protection-strategy optimization.
- Support customers with design reviews, system bring-up, debug, and performance benchmarking.
- Collaborate with internal design, systems, and marketing teams to shape next-generation product requirements.
- Generate technical collateral: application notes, whitepapers, reference schematics, simulation models.
Qualifications - BS/MS in Electrical Engineering (focus on power electronics or related field).
- Experience with high-power or high-voltage systems (48/54V or 400/800V preferred).
- Understanding of eFuse/Hot-Swap, power-switching devices, or power-tree architecture.
- Familiarity with system modeling tools (SPICE, SIMPLIS, MATLAB, etc.).
- Strong communication and customer-facing problem-solving skills.
Same Posting Description for Internal and External Candidates
About Usonsemi (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: ;br>
About the TeamWe 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 for assistance.
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