Principal Power System Engineer (Datacenter)

Location: San Jose, California, United States

Annual base pay: $187,000–$260,000

Company

hirify.global develops power semiconductor products and technologies for high-density power conversion applications.

What you will do

• Develop high-frequency AC/DC and DC/DC power converter solutions for AI and data center applications.
• Define converter architectures and key system components for emerging high-density power systems.
• Provide switching power supply design support and technical guidance for applications using hirify.global products.
• Develop reference designs and application solutions focused on performance, efficiency, system value, density, and reliability.
• Collaborate with product development teams and customers to evaluate design tradeoffs and solve complex technical challenges.
• Provide advanced application support as a technical expert to customers worldwide.

Requirements

• Bachelor’s or Master’s degree in Electrical Engineering or a foreign equivalent.
• At least 15 years of relevant industry experience.
• Deep hands-on expertise in high-density, high-frequency power converter design, including server power applications above 3 kW.
• Knowledge of active power factor correction, phase-shifted and LLC resonant converters, buck, boost, buck-boost, and flyback topologies.
• Expertise in high-frequency magnetics, complex circuit calculations, worst-case analysis, and power supply laboratory testing.
• Experience with MATLAB, Excel, SIMPLIS, LTspice, or PLECS, plus strong technical communication and knowledge of relevant industry standards and system architectures.

Nice to have

• Firmware development or guidance in C/C++ for embedded power supply controllers.
• Experience with ANSYS, I2C, PMBus, and embedded-controller debugging tools.
• Experience taking power supplies or converters from concept through production and supporting post-production.

Culture & Benefits

• Eligible employees receive equity and medical benefits.
• Benefits include an employee stock purchase plan, 401(k), tuition reimbursement, and time off programs.
• The role supports collaboration with product development teams and customers worldwide.