Staff Applications Engineer (Integrated Voltage Regulators)

NAVITAS SEMICONDUCTOR USA, INC. • Torrance, CA

10d • $145,000 - $185,000 • Onsite

About The Position

Navitas Semiconductor is seeking an Applications Engineer for its Integrated Voltage Regulator (IVR) Business Unit. The role owns system-level performance of integrated voltage regulators from lab evaluation through customer board evaluation. It develops evaluation platforms and reference designs, validates IVR performance under customer-representative conditions, creates application collateral and customer model kits, supports design-ins and bring-up, and translates customer requirements and field learning into product-definition and roadmap input.

The company’s IVRs combine power transistors, digital control, inductors, and capacitors to support Vertical Power Delivery (VPD) and Embedded Power Delivery (EPD) for AI accelerators, GPUs, CPUs, and custom ASICs. The role works with internal and external engineering partners and customers, including xPU vendors, hyperscalers, ODMs, OSATs, substrate suppliers, and embedded-component PCB fabricators. The position is based in Torrance, California, and requires willingness to travel for customer engagements, on-site bring-ups, and industry events.

Requirements

• Bachelor’s degree in Electrical Engineering or a related field, or equivalent practical experience.
• At least 5 years of experience in power-electronics design, systems engineering, or semiconductor applications engineering.
• Demonstrated experience with synchronous or multiphase buck regulators, high-current point-of-load systems, control-loop stability, transient performance, and efficiency optimization.
• Hands-on experience using power-electronics laboratory instrumentation in low-voltage, high-current systems.
• Circuit simulation experience using SIMPLIS, SIMetrix, LTspice, PLECS, or equivalent, including correlation of simulation with measurement.
• Experience defining schematics, reviewing PCB layouts, and bringing up and debugging power hardware.
• Track record of producing clear technical documentation and presenting technical results to customers or cross-functional teams.
• Willingness to travel for customer engagements, on-site bring-ups, and industry events.
• Deep knowledge of DC-DC conversion, particularly synchronous and multiphase buck regulators and high-current point-of-load power delivery.
• Ability to analyze control-loop stability, transient response, efficiency, current sharing, sequencing, protection, and fault behavior.
• Hands-on proficiency with oscilloscopes, current probes, electronic loads, power analyzers, and network analyzers for loop-gain and impedance measurements in low-voltage, high-current systems.
• Ability to correlate circuit, PDN, thermal, and system simulations with laboratory measurements.
• Strong understanding of PDN and power-integrity fundamentals, including parasitics, decoupling, high-current distribution, package interactions, and board stack-up effects.
• Ability to define schematics, review or perform PCB layouts, and bring up and debug complex power hardware.
• Proficiency in Python-based lab automation and data analysis, with working knowledge of version control such as Git.
• Clear technical writing skills for application notes, design guides, datasheet content, test reports, and customer-facing documentation.
• Confident customer communication and presentation skills, with the ability to work across engineering, sales, field, packaging, substrate, PCB, and product teams.
• Self-motivated, hands-on working style with sound technical judgment and the ability to execute effectively in a fast-growing, collaborative environment.

Nice To Haves

• Master’s or Ph.D. in Electrical Engineering with emphasis in power electronics, power management, or power integrity.
• Experience with integrated voltage regulators, Vertical Power Delivery, Embedded Power Delivery, or advanced point-of-load architectures for AI accelerators, GPUs, CPUs, or ASICs.
• Customer-facing semiconductor applications or design-in experience with hyperscalers, xPU vendors, or ODMs.
• Experience with PDN and power-integrity tools such as Ansys Q3D and/or SIwave, Cadence Sigrity, or Keysight ADS, and thermal tools such as Ansys Icepak, COMSOL, Simcenter Flotherm, or Cadence Celsius.
• Knowledge of advanced packaging, package-level power distribution, embedded components, or substrate co-design.
• Experience with digitally controlled multiphase regulators, current sharing, and interfaces such as PMBus, I2C, I3C, AVSBus, or processor VID protocols.
• Familiarity with data-center power architectures, including OCP rack power and intermediate-bus converters, and with GaN or SiC power stages.
• Working knowledge of semiconductor-device characterization and statistical analysis sufficient to support product-engineering activities.

Responsibilities

• Develop and execute system-level test plans for single- and multi-IVR power delivery under customer-representative conditions, including load transients, current sharing, power-delivery-network impedance, sequencing, protection, and fault response.
• Build processor load-emulation platforms, dynamic load boards, and test vehicles to demonstrate IVR performance before customer silicon is available.
• Benchmark IVRs against competing power-delivery solutions to identify differentiation, performance gaps, and improvement opportunities.
• Use and extend the team’s shared automation framework for repeatable system-level measurements and data analysis.
• Perform board- and package-level PDN and power-integrity analysis, including DC drop, AC impedance, parasitics, decoupling, and transient droop.
• Build circuit- and system-level IVR models, including control-loop stability and interactions among parallel regulators, and correlate simulations with lab measurements.
• Assess thermal and mechanical integration with processor cooling solutions in collaboration with thermal specialists.
• Define, design, bring up, and validate evaluation boards and reference designs, working with internal and external PCB designers from schematic and layout requirements through system validation.
• Deliver design packages including schematics, layout guidelines, bills of materials, test procedures, measured results, and GUI or script configurations.
• Develop scalable multi-IVR demonstration platforms for high-current processor applications.
• Lead customer evaluations and design-ins with xPU vendors, hyperscalers, and ODMs by reviewing architectures, schematics, layouts, package and board stack-ups; identifying risks; and supporting bring-up and debug.
• Collaborate with OSATs, substrate suppliers, and embedded-component PCB fabricators to enable IVR integration in vertical and embedded power-delivery designs.
• Author application notes, design and layout guides, datasheet application content, design calculators, and customer model kits covering circuit simulation, PDN, and thermal behavior.
• Present customer technical reviews, train sales and field teams, position IVR technology within the grid-to-xPU power chain, and translate customer requirements and field learning into product-definition and roadmap input.

Benefits

• Comprehensive health coverage
• Dental coverage
• Vision coverage
• Unlimited PTO
• Competitive compensation package including base salary, bonus, and equity awards
• Access to leadership, cross-functional collaboration, and resources to innovate and execute

What This Job Offers

• Job Type: Full-time
• Career Level: Senior