Sr Field Applications Engineer (FAE)

About the Position

We are seeking a highly capable Senior Field Applications Engineer (FAE) to support strategic customers across datacenter, AI, server, and advanced computing markets. This role is based in the San Jose, CA area.

This position combines strong hands-on technical execution, customer-facing support, and system-level power expertise. The ideal candidate brings experience in power electronics and board-level debug, with the ability to support customers through design, bring-up, validation, and issue resolution. This role is well-suited for an experienced engineer who can work independently on complex technical issues while collaborating effectively across internal and customer teams.

Renesas provides comprehensive training on our digital multiphase power solutions, helping new engineers build expertise in our architectures, tools, and validation methodologies.

Responsibilities

Customer Facing Technical Support

• Serve as a key technical interface for customer accounts, supporting power architecture and voltage regulator engagements from design phase through production.
• Provide technical guidance on digital multiphase power controllers, power modules, and server-class power delivery solutions.
• Support schematic reviews, layout reviews, board bring-up, debug, and validation activities.
• Generate customer-facing technical materials including program updates, validation reports, controller configuration files, issue summaries, and supporting waveform data.
• Assist customers during system validation, including VR performance, telemetry, protection behavior, and interaction with CPU, GPU, ASIC, or SoC power domains.

VR Simulation and Validation

• Perform VR solution simulations with application-specific PDNs in SIMPLIS to support design reviews and early risk reduction.
• Execute validation of multiphase power solutions for datacenter and AI platforms, including transient response, efficiency, telemetry, fault behavior, and protection features.
• Develop and maintain test plans, validation checklists, and coverage matrices to ensure thorough evaluation across operating conditions.
• Use lab instrumentation and structured test methods to support repeatable, high-quality validation.

Debug and Root Cause Analysis

• Diagnose complex electrical and system issues using oscilloscopes, electronic loads, current probes, network analyzers, power supplies, and related lab equipment.
• Drive issue resolution with urgency, including support for high-priority customer escalations.
• Partner with design, systems, and applications teams to identify root cause and help define corrective actions.
• Escalate appropriately when deeper cross-functional support is needed, while maintaining ownership of customer communication and follow-through.

Program Execution and Technical Ownership

• Work closely with Sales, Product Line, Marketing, and engineering teams to support successful customer engagements and design wins.
• Manage multiple customer activities in parallel, including design support, validation efforts, debug tasks, and issue tracking.
• Drive execution against customer milestones and internal priorities with strong attention to detail and responsiveness.
• Help mitigate technical risk on active programs by identifying issues early and driving timely action.
• Support successful design adoption by combining technical depth with practical judgment on where to focus effort for the highest customer and business impact.

Requirements

Required

• BS or MS in Electrical Engineering or related field.
• 5+ years of experience in power electronics, voltage regulator validation, power applications, or system-level power architecture.
• Strong hands-on experience with bench-level electrical testing and debug methodologies.
• Working knowledge of oscilloscopes, function generators, electronic loads, power supplies, current probes, and soldering tools.
• Experience supporting customer technical issues through structured debug and problem-solving.
• Strong written and verbal communication skills, with the ability to communicate effectively with both engineers and customer stakeholders.
• Ability to manage multiple concurrent technical activities with a strong sense of urgency and ownership.

Preferred

• Experience supporting AI, ML, CPU, GPU, or server power delivery applications.
• Hands-on experience with:
  • multiphase buck converters and digital VR controllers
  • high current server or AI power designs
  • SIMPLIS simulation environment
• Familiarity with validation planning, test automation, and lab instrumentation workflows.
• Experience working directly with strategic customers in a field applications, systems, or product applications role.
• Ability to balance technical problem-solving with commercial awareness in support of design win execution.

We Offer

• Competitive salary range of $120-$168K per year.
• Bonus opportunities.
• Comprehensive benefits package including medical, dental, vision, health savings account, flexible spending accounts, life insurance, AD&D, pet insurance, and more.
• Paid sick time, paid holidays, and accrued paid vacation.
• Company-paid life insurance, AD&D, LTD, and short-term medical benefits.

About the Company

Renesas is an embedded semiconductor solution provider driven by its Purpose, To Make Our Lives Easier. With a global team of over 21,000 engineers and problem solvers in more than 30 countries, we offer the opportunity to work on world-leading technology for Automotive, Industrial, Infrastructure, and IoT, shaping a safer, healthier, greener, and smarter future.

At Renesas, TAGIE is our culture, grounded in being Transparent, Agile, Global, Innovative, and Entrepreneurial. It shapes how we work, grow, and deliver on our purpose together. This collaborative spirit and mindset drive our semiconductor technology to transform industries and impact millions of lives.

We believe in rewarding our employees with a competitive benefits package alongside their salary. More information will be provided during the hiring process.

Are you ready to join our team and shape the future with us?

Renesas Electronics is an equal opportunity and affirmative action employer, committed to supporting diversity and fostering a work environment free of discrimination on the basis of sex, race, religion, national origin, gender, gender identity, gender expression, age, sexual orientation, military status, veteran status, or any other basis protected by law. For more information, please read our Diversity & Inclusion Statement.

Renesas Electronics deals with dual-use technology that is subject to U.S. export controls regulations. Under these regulations, it may be necessary for Renesas to obtain a U.S. government export license prior to release of technology to certain persons. The decision whether or not to file or pursue an export license application is at the sole discretion of Renesas.