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MTS Applications

Jobs onsemi687 open roles

Where
Hangzhou, Zhejiang, China, Shanghai, Shanghai, China
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Your applicationOpen nowMTS ApplicationsJobs onsemi · Hangzhou, Zhejiang, China, Shanghai, Shanghai, China

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The clock on this job

Early applications get read.

13.5% of postings close within 7 days. Measured by our own scanner across the market. Jobs onsemi postings stay open a median of 14 days.

Share of postings closed within
  1. 2.3%1 day
  2. 4.6%3 days
  3. 13.5%7 days
  4. 21.8%14 days
  5. 36.6%30 days
  6. 58.9%60 days
This job: posted today

Jobs onsemi median: 14 days open

The posting

Job Description

Position Summary

onsemi is seeking a hands-on Senior System Engineer to lead the architecture and development of next-generation power systems for AI and hyperscale data centers. The role spans AC-DC front ends, HVDC distribution, DC-DC conversion, and point-of-load delivery, using advanced silicon, SiC, JFET, and GaN technologies. The ideal candidate combines deep power-electronics expertise with technical leadership, customer insight, and a track record of translating market needs into efficient, high-density, reliable, and cost-effective solutions.

Responsibilities

Key Responsibilities

  • Lead system architecture for next-generation AI server and hyperscale data-center power platforms.
  • Develop AC-DC, HVDC, DC-DC, and point-of-load solutions across PSUs, BBUs, and CBUs, from hundreds of watts to 100 kW+.
  • Translate customer, application, and market requirements into system specifications and semiconductor technology roadmaps.
  • Optimize efficiency, power density, thermal performance, reliability, protection, and cost at the system level.
  • Select and apply Si MOSFETs, IGBTs, SiC MOSFETs, SiC JFETs, and GaN devices; guide magnetics, controls, and advanced-packaging tradeoffs.
  • Lead hands-on hardware bring-up, validation, debugging, and root-cause resolution.
  • Provide technical direction across engineering, applications, product, and marketing teams, and influence customers and partners.

Qualifications

Required Qualifications

  • M.S. or Ph.D. in Electrical Engineering, Systems Engineering, or a related field.
  • 10+ years of power-electronics experience, including system architecture from several hundred watts to 100 kW+.
  • Deep expertise in AC-DC and DC-DC topologies, controls, magnetics, protection, and silicon, SiC, JFET, and GaN power devices.
  • Strong capability in electrical and thermal modeling, simulation, laboratory validation, and hardware debugging.
  • Proficiency with SPICE, SIMPLIS, PLECS, MATLAB, or comparable tools.
  • Demonstrated success leading cross-functional technical teams and making high-impact architectural decisions in evolving environments.
  • Excellent customer-facing communication, with the ability to uncover needs and convert complex concepts into clear, actionable specifications.

Preferred Qualifications

  • Direct experience with AI servers, hyperscale data centers, or adjacent high-power industrial and automotive systems.
  • Experience with 48V/54V distribution, ±400V or 800V HVDC architectures, high-power PSUs, BBUs, and CBUs.
  • Proven application of wide-bandgap devices, especially SiC and GaN, in high-efficiency, high-density, and high-reliability designs.
  • Experience partnering with hyperscalers, OEMs, server manufacturers, power-supply providers, or semiconductor companies.
  • Ability to influence product and technology roadmaps across internal teams, customers, and external partners.

Desired Traits

  • Hands-on, self-directed engineer with strong judgment and an execution mindset.
  • Collaborative technical leader who drives clarity, innovation, and engineering excellence.
  • Clear communicator who can lead through influence in a fast-paced environment.

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:

https://www.onsemi.com/careers/career-benefits

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.

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