Software Dev Engineer II, Foundational Services, AWS Applied AI Solution – Core Services

As part of the AWS Applied AI Solutions (AAIS) organization, we have a vision to provide business applications, leveraging Amazon's unique experience and expertise, that are used by millions of companies worldwide to manage day-to-day operations. We will accomplish this by accelerating our customers' businesses through delivery of intuitive and differentiated technology solutions that solve enduring business challenges. We blend vision with curiosity and Amazon's real-world experience to build opinionated, turnkey solutions. Where customers prefer to buy over build, we become their trusted partner with solutions that are no-brainers to buy and easy to use. Join our Foundational Services team within Applied AI Solutions and help build the secure, reliable ecosystem of tools, services, and frameworks that powers AAIS's AI-driven business applications. We own critical foundational infrastructure spanning seven core pillars: Identity, Data and Knowledge, Foundational Agents, Evaluation, Onboarding, User Experience, and Data Analytics and Observability. Our platform abstracts complexity and eliminates undifferentiated heavy lifting, enabling AAIS builder teams to focus on differentiated innovation and reducing development time from months to days. This includes event-based data stores, machine learning training platforms, agent frameworks, identity management systems, and data access interfaces that enable responsible AI development while maintaining the highest standards of privacy, security, and compliance. As a Software Development Engineer II, you'll take ownership of production systems and developer-facing platforms that empower internal builder teams to rapidly develop AI-powered enterprise applications, rather than rebuilding common agentic infrastructure from scratch. You'll handle the complete data lifecycle, from ingestion through model training to customer opt-out controls. You'll maintain and refactor existing services for enhanced performance and scalability, while designing new foundational solutions to meet emerging requirements from application teams. Working alongside scientists and engineers, you'll enable them to build and improve AI agents and models, balancing innovation with compliance requirements. This role offers exciting opportunities to solve complex challenges around secure data storage, efficient querying at scale, and building self-service agentic platforms that empower development teams. You'll drive the evolution of established platforms to meet future needs, directly impacting how AWS delivers increasingly sophisticated AI-powered capabilities while ensuring customers maintain complete control over their data throughout every stage of processing. Key job responsibilities Own and deliver complete software features for event-based data storage systems and agentic infrastructure, from design through deployment and operations, ensuring they provide flexible, secure, and compliant platforms for AI-powered business applications Maintain, refactor, and enhance existing foundational services and analytics platforms, identifying opportunities to improve performance, scalability, and operational excellence while eliminating technical debt Design and implement software solutions for data access interfaces, agent frameworks, and authorization systems within established architectural strategies, seeking guidance from senior engineers when facing complex technical tradeoffs Mentor team members through code reviews, documentation, and knowledge sharing, providing meaningful feedback, training newcomers on system architecture, and facilitating technical discussions that promote operational excellence Resolve operational issues by identifying root causes and implementing permanent fixes for compliance features, data deletion APIs, and customer opt-out mechanisms, going beyond quick workarounds Work directly with internal builder teams and stakeholders to understand requirements, translating them into foundational