Unified Authorization is responsible for securing service-to-service communications across Amazon's entire ecosystem ensuring secure customer and corporate interactions.. Whether it's the retail website, Alexa, or Kindle, we ensure actors are authenticated and authorized to take the requested action. Every aspect of Amazon's business interacts with our systems, including the next generation of retail services on AWS infrastructure. we operate at the crucial intersection of system resiliency, constant availability, and rapid deployment capabilities. We are looking for software engineers who thrive on complex problems and relish the challenge of operating a complex and mission critical system under intensive loads. Our systems responds to millions of requests per minute. We develop security software for high availability systems. We make it easy for our customers to follow security best practices. Do you think you are up to the challenge and want to learn more to stretch your skills and career? The successful candidate is expected to contribute to all parts of the software development and deployment lifecycle, including design, development, documentation, testing and operations. He or she must possess strong verbal and written communication skills, be self-driven, deliver high quality results in a fast paced environment, and really enjoy working closely with peers in a group of very talented engineers. Key job responsibilities - Design and implement scalable software solutions that calculate taxes accurately and efficiently across Amazon's global operations, handling millions of service requests per minute - Collaborate with cross-functional teams to understand business requirements and translate them into technical solutions that meet tax compliance standards worldwide - Develop, test, and deploy high-quality distributed system software using software engineering best practices and modern development methodologies - Participate in the full software development lifecycle, including design reviews, code reviews, documentation, testing, and operational support of production systems - Contribute to system reliability and performance by monitoring production metrics, identifying optimization opportunities, and implementing improvements to ensure our services meet demanding scale and accuracy requirements ### 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 - Experience programming with at least one software programming language - Bachelor's degree or equivalent ### Preferred qualifications - 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience 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.