Amazon Leo is a low Earth orbit satellite broadband network. Its mission is to deliver fast, reliable internet to customers and communities around the world, and we’ve designed the system with the capacity, flexibility, and performance to serve a wide range of customers, from individual households to schools, hospitals, businesses, government agencies, and other organizations operating in locations without reliable connectivity. As a Senior Embedded Software Engineer, you will be a part of the team participating in the definition and implementation of the Leo’s satellite communication software stack. In this role, you will develop embedded software modules and test frameworks for the Leo satellite constellation. You will be responsible for the design, implementation, deployment and operations of a 3GPP 5G NTN and Open RAN based networking and management stack functions for the satellite payloads. You will work closely with software, test and validation, reliability, RF hardware, and custom silicon development teams to optimize low-latency high-reliability payload connectivity solution. Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Key job responsibilities • Develop embedded software for satellites and ground systems related to the operation, validation, and management of a 3GPP 5G networking stack. • Participate in all phases of SDLC including requirements gathering, design, code, test, and code/test coverage. • Developing embedded software modules in assembly, C, C++, Rust or other languages operating against 3GPP 5G/ O-RAN defined protocols and interfaces • Have experience with real-time embedded software development and robust design practices • Have expertise with Linux and RTOS • Review schematics, logic analyzer, wireless signal and protocol analysis, and embedded software (bare-metal) troubleshooting techniques. Basic qualifications - 7+ years of non-internship professional software development experience - 7+ years of programming with at least one software programming language experience - 7+ 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 - Bachelor's degree in computer science or equivalent - Experience in wireless system design and architecture, system integration, and RF system analysis - 5+ years of embedded firmware development experience - Experience writing low level drivers - Experience working in a Linux/Unix environment Preferred qualifications - 10+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience - Knowledge of system performance, memory management, and parallel computing principles - Master's degree in computer science or equivalent - Experience developing cloud native CI/CD workflows and tools, such as Jenkins, Bamboo, TeamCity, Code Deploy (AWS) or GitLab - Experience developing PHY/MAC layer HW/SW targeting SoCs, FPGAs, and general-purpose processors - Experience building 3GPP based wireless communication systems - Base Stations or UEs Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. 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. 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 https://amazon.jobs/en/benefits. USA, TX, Austin - 168,100.00 - 227,400.00 USD annually USA, WA, Redmond - 168,100.00 - 227,400.00 USD annually