Senior Staff Application Engineer

Job Title

Senior Staff Application Engineer

Role Summary

Lead evaluation and development of high-performance DC/DC power conversion solutions for AI and high-performance computing platforms. Work cross-functionally with systems, IC design, packaging and marketing to translate system requirements into silicon product definitions and validated converter implementations.

Contribute across architecture exploration, proof-of-concept hardware, simulation/modeling, laboratory characterization and product specification to improve power density, reliability and scalability.

Experience Level

Senior-level role. Requires 10+ years of relevant experience in power conversion, power management, semiconductor applications or related system design.

Responsibilities

Provide technical leadership across power architecture, converter design, validation and product definition.

• Define and evaluate next-generation power conversion architectures for AI and HPC systems.
• Lead topology studies, proof-of-concept development and technology pathfinding for high-performance DC/DC converters.
• Develop detailed electrical and system-level models (e.g., using SIMPLIS) and correlate simulation with bench measurements.
• Translate system and customer requirements into device-level specifications for new silicon products.
• Plan and execute converter characterization, data collection, analysis and performance tuning.
• Develop automated measurement and validation setups to improve repeatability and data quality.
• Guide schematic and PCB implementation with focus on placement, power-stage layout, signal integrity, thermal performance and manufacturability.
• Customize solutions for customer applications and communicate technical findings to cross-functional teams and stakeholders.

Requirements

Core technical and practical skills required to execute advanced converter development and product definition.

Must-have:

• 10+ years of experience in power conversion, power management, semiconductor applications or related system design.
• Proven experience in design, modeling, development and laboratory validation of high-performance power converters (low- and high-voltage domains).
• Deep understanding of control-loop design, stability analysis, transient response and implementation constraints.
• Solid knowledge of resonant and non-resonant converter topologies and system-level topology trade-offs.
• Experience with magnetic component selection/design and its impact on switching frequency, efficiency, thermal performance and power density.
• Ability to move from concept and simulation to hardware implementation, measurement and product definition.
• Strong written and verbal communication skills and ability to lead technical cross-functional work.

Nice-to-have:

• Experience with power delivery for AI accelerators, data-center platforms or other high-current digital loads.
• Knowledge of multiphase buck converters, point-of-load regulation and high-current power stages.
• Familiarity with SIMPLIS or equivalent simulation tools and Python or similar for measurement automation and data processing.
• Experience in semiconductor product definition and customer-facing technical support.

Education Requirements

Master's degree in Electrical Engineering, Power Electronics or a closely related discipline; or an equivalent combination of education and relevant experience.

About the Company

Company: Renesas

Headquarters: Hitachinaka, Japan

Renesas is a global leader in embedded semiconductor solutions, providing high-quality products across automotive, industrial, infrastructure, and IoT sectors. With over 22,000 employees in more than 30 countries, the company focuses on scalable solutions that enhance user experience and drive innovation while committed to sustainability and energy efficiency.