Ever wonder what it takes to keep one of the world's most-used mobile apps fast, reliable, and evolving? We're looking for a Software Development Engineer to join Mobile App Foundations (MAF) -- the team that builds the platform layer powering the Amazon Mobile Shopping app and beyond. Our systems serve hundreds of millions of customers daily, processing billions of events across iOS and Android. You'll tackle problems at the intersection of mobile engineering, distributed systems, and large-scale platform modernization -- where your decisions have org-wide reach and your code ships to hundreds of millions of devices. Key job responsibilities - Build and evolve mobile platform infrastructure used by dozens of engineering teams across Amazon Mobile - Design systems that operate at massive scale -- billions of daily events across iOS and Android - Drive migration of mobile services to modern architectures as part of a multi-year platform transformation - Develop client-side frameworks for runtime configuration, feature management, and progressive rollout mechanisms - Build instrumentation and measurement systems that help teams understand and improve the customer experience - Contribute to production resiliency -- on-call, incident response, emergency configuration systems, and system reliability Basic qualifications - 3+ years of non-internship professional software development experience - 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience - 1+ years of software development engineer or related occupational experience - 1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl experience - 1+ years of Object Oriented Design experience - Bachelor's degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field - Experience programming with at least one software programming language Preferred qualifications - 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience - Bachelor's degree in computer science or equivalent 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, WA, Seattle - 143,700.00 - 194,400.00 USD annually