Front End Power Electronics Engineer

Amazon Web Services is seeking a Front End Power Electronics Engineer to design the medium-voltage AC/DC front-end stage of the SST including active-front-end rectification PFC/THD performance and high-voltage SiC power devices.

AWS Infrastructure Services owns the design planning delivery and operation of all AWS global other words were the people who keep the cloud running. We support all AWS data centers and all of the servers storage networking power and cooling equipment that ensure our customers have continual access to the innovation they rely on. We work on the most challenging problems with thousands of variables impacting the supply chain and were looking for talented people who want to help.

As a Front End Power Electronics Engineer you will own the AC/DC front end: Designing the MV active-front-end for 13.8/34.5 kVac interface conditions with PFC/THD targets abd delivering a defined stage with limited guidance. You will solve rectifier topology switching-strategy and V SiC device-stress problems under grid conditions and power-quality limits. You will coordinate gate-drive protection and layout with adjacent teams and substantiate the design via simulation-to-measurement correlation.

About AIS
AWS Infrastructure Services (AIS) owns the design planning delivery and operation of all AWS global other words were the people who keep the cloud running. We support all AWS data centers and all of the servers storage networking power and cooling equipment that ensure our customers have continual access to the innovation they rely on. We work on the most challenging problems with thousands of variables impacting the supply chain and were looking for talented people who want to help.

Youll join a diverse team of software hardware and network engineers supply chain specialists security experts operations managers and other vital roles. Youll collaborate with people across AWS to help us deliver the highest standards for safety and security while providing seemingly infinite capacity at the lowest possible cost for our customers. And youll experience an inclusive culture that welcomes bold ideas and empowers you to own them to completion.

Key job responsibilities
AC/DC design:
- Design MV rectifier and active-front-end architectures for 13.8 kVac and 34.5 kVac MVAC interface conditions aligned to SST system; the 510 MW platform is a development vehicle toward a scalable architecture.
- Develop and optimize power-factor correction and total harmonic distortion performance. Evaluate rectifier topology switching strategy and power-stage operating limits.
- Support system integration with the isolated DC/DC stage.

Power semiconductor design:
- Select and evaluate high-voltage SiC components in the V class identified in the organization plan.
- Assess switching losses thermal stress voltage/current margins and device reliability.
- Coordinate gate-drive protection and layout requirements with associated engineering teams.

Modeling & validation:
- Develop and use simulation models to evaluate steady-state and transient performance.
- Support prototype bring-up and laboratory validation.
- Correlate simulation with measurements and feed results into design iterations.

SST System Alignment:
- Design the MVAC front end around the system specification interface configurations: 13.8 kVac 10% and 34.5 kVac 10% 3-phase 3-wire PE 5763 Hz with up to 5 Hz/s ROCOF.
- Address MV power factor IEEE 519 / IEC 61800-3 Category C4 / IEC/-6-4 harmonic and EMC requirements MV grounding transient protection filtering BIL and short-circuit capability.
- Coordinate MVAC load acceptance/rejection and ride-through behavior with system controls and ESS.

About the team
We are AWS Infrastructure Services the team that designs plans delivers and operates all AWS global infrastructure. Were the people who keep the cloud runningsupporting data centers and all the servers storage networking power and cooling equipment that ensure our customers have continual access to the innovation they depend on. Our team brings together software engineers hardware engineers network specialists supply chain experts security professionals and operations managers all working toward a shared mission of delivering the highest standards for safety and security while providing seemingly infinite capacity at the lowest possible cost.

Youll join a culture that welcomes bold ideas and empowers you to own them through completion. We collaborate across AWS to solve some of the most challenging infrastructure problems where thousands of variables impact our supply chain and system performance. As a Front End Power Electronics Engineer youll work alongside colleagues who are equally committed to technical excellence and to supporting one anothers growth. Were excited about the potential of solid-state transformer technology to transform power delivery and were looking for someone who shares that vision and wants to help shape the future of our infrastructure.

About AWS
Why AWS
Amazon Web Services (AWS) is the worlds most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating thats why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.

Inclusive Team Culture
Here at AWS its in our nature to learn and be curious. Our employee-led affinity groups foster a culture of inclusion that empowers us to celebrate our differences. Ongoing events and learning experiences including our Conversations on Race and Ethnicity (CORE) and diversity conferences inspire us to never stop embracing our uniqueness.

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 theres nothing we cant achieve in the cloud.

Mentorship & Career Growth
We have a career path for you no matter what stage youre in when you start here. Were continuously raising our performance bar as we strive to become Earths Best Employer. Thats why youll find endless knowledge-sharing mentorship and other career-advancing resources here to help you develop into a better-rounded professional.


- Bachelors degree in Electrical Engineering.
- Power-electronics design experience in high-voltage/high-power converters
- Experience with active front ends rectifiers PFC and THD
- Demonstrated understanding of thermal EMI and protection implications of MV switching converters
- Demonstrated ability to work from simulation through hardware validation.

- Masters degree or PhD in Electrical Engineering.
- 2 years experience designing grid-tied/MV converters with AFE/PFC and power-quality.
- Experience with high-voltage SiC devices.
- Demonstrated working effectively with adjacent engineering disciplines and contributing to full A-to-Z product ownership.
- Demonstrated operating effectively in a greenfield environment where standards and reference designs may require interpretation and adaptation.
- Experience documenting design decisions assumptions trade-offs risks and technical specifications.

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