Senior Power Electronics Engineer

Job description

Are you excited about designing power-conversion hardware that will operate at megawatt scale inside data center infrastructure? Amazon Web Services is looking for a Senior Power Electronics Engineer to lead the design of solid-state transformer (SST) conversion stages, with deep expertise in high-voltage silicon carbide (SiC) devices and isolated high-power converter topologies. You will own the dual active bridge (DAB), CLLC, and series-resonant converter stage designs from bench prototype through megawatt-class deployment, including SiC device selection and qualification. You will tackle device paralleling, current sharing, switching-loss optimization, and thermal derating challenges while guiding risk reduction through simulation and prototype correlation. You will also mentor fellow power electronics engineers, lead design reviews, and contribute to patent and technology decisions that shape the future of data center power delivery. Key job responsibilities - Lead architecture decisions for DAB, CLLC, and series-resonant converter stages, defining power-stage topologies that scale from prototype to megawatt deployment while meeting efficiency, thermal, and serviceability targets. - Select and qualify high-voltage SiC power devices, evaluating switching losses, body-diode behavior, dynamic on-resistance, device paralleling, current sharing, and thermal derating for high-current operation. - Coordinate converter-stage interfaces with the medium-voltage front end, 800 VDC output bus, controls, magnetics, and cooling subsystems to ensure cohesive system performance. - Drive technical risk reduction through simulation, prototype testing, and measurement correlation, leading design reviews that set engineering quality standards across the team. - Mentor power electronics engineers, contribute to patents and publications, and support technology roadmap decisions that advance data center power infrastructure. A day in the life You will split your time between hands-on design work and cross-functional collaboration. In a typical morning you might run converter simulations, review SiC device characterization data, or correlate prototype bench measurements against your models. Afternoons often shift to design reviews with magnetics, controls, and thermal engineers, or working sessions with partner teams on system-level interface specifications. You will regularly present technical trade-off analyses to stakeholders, coach junior engineers through design challenges, and carve out time to explore new converter architectures or draft patent disclosures. About the team Our team within AWS Infrastructure Services is focused on developing next-generation power delivery systems for data centers worldwide. We work at the intersection of power electronics, electrical infrastructure, and large-scale deployment, partnering closely with mechanical, controls, and construction engineering teams to bring new technology from concept to production. We value an inclusive, collaborative culture where engineers at every level contribute ideas and learn from one another. If you are eager to solve complex power-conversion problems that directly improve the reliability and efficiency of global cloud infrastructure, this is the team for you. About AWS Amazon Web Services (AWS) is the world’s most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses. Diverse Experiences AWS values diverse experiences. Even if you do not meet all of the qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn’t followed a traditional path, or includes alternative experiences, don’t let it stop you from applying. Inclusive Team Culture Here at AWS, it’s in our nature to learn and be curious. Our employee-led affinity groups foster a culture of inclusion that empower us to be proud of our differences. Ongoing events and learning experiences, including our Conversations on Race and Ethnicity (CORE) and AmazeCon conferences, inspire us to never stop embracing our uniqueness. Mentorship & Career Growth We’re continuously raising our performance bar as we strive to become Earth’s Best Employer. That’s why you’ll find endless knowledge-sharing, mentorship and other career-advancing resources here to help you develop into a better-rounded professional. Work/Life Balance We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why flexible work hours and arrangements are part of our culture. When we feel supported in the workplace and at home, there’s nothing we can’t achieve in the cloud. - Bachelor's degree in Electrical Engineering. - Hands-on experience with SiC high-voltage power-electronics - Experience scaling power conversion from prototype/bench level to high-power deployment - Experience documenting design decisions, assumptions, trade-offs, risks and technical specifications - Demonstrated working effectively with adjacent engineering disciplines and contributing to full A-to-Z product ownership - Master's degree or PhD in Electrical Engineering. - 10+ years of power-electronics experience with proven delivery of DAB/CLLC/SRC and HV-SiC design scaled to high power. - Deep knowledge of DAB/CLLC/SRC converter topologies - Demonstrated strong understanding of thermal management, current sharing, protection and design-for-serviceability. - Demonstrated operating effectively in a greenfield environment where standards and reference designs may require interpretation and adaptation. 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