onsemi
From onsemi's careers page
Status: listed on the employer's own careers page when we last checked (daily). Confirm on their site before applying.
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.
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.
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.
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.
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.
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