Sr.SoftwareDevEngineer

Amazon Lab126 is an inventive research and development company that designs and engineers high-profile consumer electronics. Lab126 began in 2004 as a subsidiary of Amazon.com, Inc., originally creating the best-selling Kindle family of products. Since then, we have produced popular devices like Fire tablets, Fire TV, Amazon Echo and Amazon Echo Show. The Amazon Devices group delivers delightfully unique Amazon experiences, giving customers instant access to everything, digital or physical. Key job responsibilities Design, develop, and optimize the cellular telephony framework and services layer on Android-based devices, delivering reliable voice, data, messaging, and connectivity experiences. This role owns the application processor side of the mobile telephony stack, integrating carrier requirements, platform telephony APIs, and cellular service features across various devices. - Architect and implement core telephony framework components including calling, data connectivity, messaging, and advanced features such as Wi-Fi calling, eSIM provisioning, and 5G integration. - Optimize telephony stack performance for call setup latency, network registration, and power efficiency across diverse carrier networks and device configurations. - Partner with product management to translate customer experience goals into technical designs and implementation. - Collaborate cross-functionally with modem/baseband, OS platform, QA/certification, and cloud services teams to deliver differentiated telephony features end-to-end. - Lead and participate in design reviews, taking ownership of critical architectural decisions and driving resolution of complex technical issues. About the team We own the cellular services on various devices, building the software that connects people through voice, data, and messaging every day. We work closely with OS platform teams, QA/certification, cloud services, and product management to deliver reliable connectivity experiences across diverse carrier