Amazon Sr Embedded Software Engineer Ring 

United Kingdom, England, Cambridge 

780919320

You will obsess over a device's power consumption, battery life, boot time, system latency and other performance KPIs. You will add significant new features and integrate with new hardware and software services.Key job responsibilities
You will be responsible for
Defining power and thermal budgets for system components
Optimising firmware for power consumption
Designing new features and solutionsMonitoring and improving device KPIsAbout the team
You will join the team that works on Ring devices, including video doorbells, and security cameras. We develop the device firmware which supports popular features such as Live View, colour night mode and motion detection. Our goal is to ensure a secure and reliable product development integrating with the Ring product range, to help Ring on its mission to keep people closer to home.

- Experience contributing to the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems
- Experience programming with at least one modern language such as Java, C++, or C# including object-oriented design
- Experience as a mentor, tech lead or leading an engineering team
- Proven experience with microcontroller architectures
- Extensive experience in power management and thermal optimization techniques
- Deep understanding of CPU/MCU power states, clock gating, and voltage scaling

- Bachelor's degree in computer science or equivalent
- Experience with full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations
- Dynamic Voltage and Frequency Scaling (DVFS)
- Advanced power management protocols (ACPI, PMBus)
- Thermal modeling and simulation tools