Sr. Software Development Engineer, Fees Tech

Job Description Description Are you a seasoned software engineer who thrives on solving complex technical challenges at scale while mentoring others Do you want to architect critical tech systems that directly impact millions of entrepreneurs worldwide Join our Seller Fees Tech organization as a Senior SDE and lead the development of sophisticated services that power Amazon's global marketplace expansion. As a Senior SDE on our Expansions team, you'll architect and develop solutions that standardize fee structures, incentive programs, and fee adjustment mechanisms across Amazon's global marketplace portfolio. You'll be a technical leader who designs scalable, resilient systems processing billions of transactions while guiding more junior engineers and translating complex business requirements into elegant technical implementations. Your expertise will be crucial in closing parity gaps between established and emerging marketplaces, ensuring a consistent seller experience worldwide. In this role, you'll have the opportunity to pioneer GenAI adoption across our engineering workflows, significantly improving team efficiency and delivery capabilities. You'll work at intersection of financial systems, distributed computing, and marketplace economics, solving technical challenges that require both deep engineering expertise and keen business acumen. The Seller Fees Tech organization supports over 2MM+ active sellers by ensuring accurate, transparent fee calculations that directly impact their business operations. Your work will directly influence seller profitability, marketplace growth, and Amazon's revenue streams through the development of robust, scalable services that must perform flawlessly at massive scale. Key job responsibilities A. Technical Leadership Architect scalable, resilient services that standardize fee structures and financial mechanisms across global marketplaces Design and implement simplified solutions to solve complex problems at massive scale Lead technical design discussions and make critical architectural decisions that balance technical excellence with business requirements Establish engineering best practices, technical standards, and design patterns for the team Develop technical roadmaps for significant initiatives and guide implementation across multiple sprints Make sound technical decisions that consider long-term maintainability, performance, and operational excellence B. Engineering Excellence Write high-quality, well-tested code that serves as an example for the team Drive code reviews that improve overall system quality and developer skills Design and implement robust error handling, monitoring, and observability solutions Optimize system performance, scalability, and resilience for mission-critical financial services Collaborate with operations teams to ensure systems are production-ready and meet stringent SLAs Lead technical investigations for complex production issues and implement comprehensive solutions C. Innovation & Mentorship Pioneer GenAI adoption to improve development workflows, code quality, and team productivity Mentor junior engineers, helping them grow technically and professionally Identify and evaluate new technologies that could benefit the team's development process Partner with product managers to translate business requirements into technical solutions Share knowledge through documentation, tech talks, and training sessions Basic Qualifications - Bachelor's degree in computer science or equivalent - 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 - Knowledge of professional software engineering & best practices for full software development life cycle, including coding standards, software architectures, code reviews, source control management, continuous deployments, testing, and operational excellence - Knowledge of data structures, algorithms, and software design patterns Preferred Qualifications - 5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience - Master's degree in computer science or equivalent - Familiarity with GenAI tools and their application in software development 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 for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.