Sr. Software Dev Engineer

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 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 networks and device configurations. We take ownership of the performance and reliability that users depend on for their most fundamental connectivity experiences.

- 5 years of non-internship professional software development experience
- 5 years of programming with at least one software programming language experience
- 5 years of leading design or architecture (design patterns reliability and scaling) of new and existing systems experience
- Experience as a mentor tech lead or leading an engineering team
- Bachelors degree
- 3 years of Android development experience

- Experience with full software development life cycle including coding standards code reviews source control management build processes testing and operations
- Hands-on experience developing telephony and cellular services software with deep understanding of cellular stacks (e.g. IMS MMTel RCS) device connectivity features and data services.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status disability or other legally protected status.

Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees supervisors and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees supervisors and staff to ensure exceptional customer service; and follow all federal state and local laws and Company policies. Criminal history may have a direct adverse and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above as well as the abilities to adhere to company policies exercise sound judgment effectively manage stress and work safely and respectfully with others exhibit trustworthiness and professionalism and safeguard business operations and the Companys reputation. Pursuant to the Los Angeles County Fair Chance Ordinance we will consider for employment qualified applicants with arrest and conviction records.

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The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience qualifications and location. Amazon also offers comprehensive benefits including health insurance (medical dental vision prescription Basic Life & AD&D insurance and option for Supplemental life plans EAP Mental Health Support Medical Advice Line Flexible Spending Accounts Adoption and Surrogacy Reimbursement coverage) 401(k) matching paid time off and parental leave. Learn more about our benefits at CA Irvine - 168100.00 - 227400.00 USD annually
USA CA Sunnyvale - 193300.00 - 261500.00 USD annually