Real-Time Embedded Firmware Engineer

Amazon Web Services is seeking an Embedded Firmware Engineer, Real-Time to develop deterministic real-time firmware for SST power-conversion control, PWM generation, diagnostics and protection-related functions.

As an Embedded Firmware Engineer, Real-Time you will develop bare-metal/FreeRTOS C/C++ firmware for PWM and conversion control on DSP/FPGA, delivered independently. You will adhere to ISR timing budgets, fault-detection latency and safe-state transitions coordinated with functional-safety requirements. You will debug real-time interaction between firmware, FPGA, control and power stages and supports HIL and system validation.

About AIS

AWS Infrastructure Services (AIS) owns the design, planning, delivery, and operation of all AWS global infrastructure. In other words, we’re 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 we’re looking for talented people who want to help.

You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll 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 you’ll experience an inclusive culture that welcomes bold ideas and empowers you to own them to completion.

Key job responsibilities

Firmware development:

- Develop bare-metal and/or FreeRTOS firmware in C/C++.

- Implement real-time PWM and power-conversion control drivers on DSP/FPGA platforms.

- Implement deterministic interfaces to sensors, control algorithms and hardware protection.

Diagnostics & fault handling:

- Develop embedded diagnostics and monitoring functions.

- Implement fault detection and fault-state handling in coordination with functional-safety requirements.

- Support watchdog and system-health mechanisms where allocated to embedded software.

Integration & verification:

- Bring up firmware on prototype hardware.

- Debug real-time interactions between firmware, FPGA, control algorithms and power electronics.

- Support hardware-in-the-loop and system-level validation.

SST System Alignment:

- Implement deterministic state-machine, protection, overload, fault recovery and power-sharing functions required by the SST system behavior.

- Support fast response to LVDC disturbances and coordinated ESS behavior during MVAC ride-through events.

A day in the life

As an Embedded Firmware Engineer, Real-Time, you'll focus on developing robust firmware for power-conversion control systems using C/C++ on DSP and FPGA platforms. Your day might include writing and optimizing real-time PWM drivers, implementing fault-detection algorithms that meet strict timing requirements, or debugging complex interactions between firmware, hardware, and control systems. You'll collaborate with hardware engineers and control specialists to bring up new prototype systems, validate designs through hardware-in-the-loop testing, and ensure your code meets the deterministic timing budgets critical to system safety. You may also contribute to solving real-time challenges specific to power-sharing and system recovery during grid disturbances.

About the team

We are the team that keeps the cloud running. AWS Infrastructure Services designs, plans, delivers, and operates all AWS global infrastructure-the servers, storage, networking, power, and cooling equipment that enable our customers to access the innovation they depend on. Our team tackles some of the most complex engineering challenges in the industry, and we're building solutions that scale across data centers worldwide. We're looking for collaborative engineers who are curious, committed to continuous learning, and excited about contributing to infrastructure that powers businesses globally. You'll work alongside experienced firmware developers, hardware engineers, and control systems specialists who are passionate about solving deterministic real-time challenges. Together, we're advancing how AWS manages power conversion and system reliability at scale.

Why 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.

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 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, there’s nothing we can’t achieve in the cloud.

Mentorship & Career Growth

We have a career path for you no matter what stage you’re in when you start here. 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.

Basic qualifications

- Bachelor's degree in Electrical Engineering or related experience/ field.

- Experience with real-time firmware in power electronics or comparable high-performance systems.

- Experience and/or demonstrated understanding of PWM, DSP/FPGA interfaces and deterministic timing.

- Experience documenting design decisions, assumptions, trade-offs, risks and technical specifications.

- Experience using engineering analysis and measured evidence to drive decisions.

Preferred qualifications

- Master's degree or PhD in Electrical Engineering.

- Experience in real-time embedded firmware (C/C++, RTOS/bare-metal) for power-electronics or safety-relevant control.

- Demonstrated understanding of PWM, DSP/FPGA interfaces and deterministic timing.

- Experience with bare-metal and/or FreeRTOS.

- Experience with Git and disciplined software development practices.

- Demonstrated operating effectively in a greenfield environment where standards and reference designs may require interpretation and adaptation.

Amazon est un employeur engagé pour l'égalité des chances. Nous sommes convaincus qu'une main d'oeuvre diversifée est essentielle à notre réussite. Nous prenons nos décisions de recrutement en fonction de votre expérience et de vos compétences. Nous apprécions votre envie de découvrir, d'inventer, de simplifier et de construire. La protection de votre vie privée et la sécurité de vos données constituent depuis longtemps une priorité absolue pour Amazon. Veuillez consulter notre Politique de Confidentialité pour en savoir plus sur la façon dont nous collectons, utilisons et traitons les données personnelles de nos candidats.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.