Software Development Engineer II, Amazon Business

We're seeking a Software Development Engineer to lead and build technical initiatives that will reshape how businesses sell on Amazon. Our team is passionate about learning and building advanced solutions using GenAI and Agentic AI to help B2B sellers optimize their operations and drive growth.Join Amazon Business 3P (Third Party - Sellers) - a rapidly growing $25B global organization where we innovate at the intersection of technology and B2B commerce. We're reimagining how sellers reach and serve business customers, creating solutions that help them grow their B2B business on Amazon. From Seller Central tools to business certifications, custom pricing capabilities, and advanced analytics, we're transforming how B2B selling <happens.As> a Software Development Engineer on our AB 3P Tech team, you'll work with a highly technical, entrepreneurial team building distributed systems that power the B2B selling experience. You'll drive end-to-end development from design to delivery, make strategic technology decisions, and mentor junior engineering talent. Your team will own critical systems spanning from Seller Central to Amazon Business detail pages, cart, and checkout for merchant-fulfilled offers.Join us in shaping the future of B2B selling - we're leveraging emerging AI technologies and innovating across the seller experience to create significant impact in this fast-growing business.Key job responsibilitiesYou'll architect and build scalable solutions using Web Services, APIs, and Micro-Services architecture. Working within our entrepreneurial team, you'll drive development of high-performance systems, implementing industry-leading design patterns and coding practices.Your role combines technical leadership with hands-on development. You'll mentor junior engineers while partnering with stakeholders to translate business requirements into robust technical solutions. Strong communication skills are essential as you'll lead technical discussions and influence architectural <decisions.You>'ll contribute to innovation through emerging technologies and business challenges. You'll own software engineering practices throughout the development lifecycle - from coding standards and reviews to build processes and operations, while helping establish engineering excellence.A day in the lifeYou will start your day reviewing operational metrics and addressing any alerts before diving into feature development or system improvements. Expect to participate in design discussions, write and review code, and pair with teammates to solve tricky problems. You will regularly engage with product managers and stakeholders to refine priorities and ensure your work aligns with customer needs. Whether you are refactoring a critical service or documenting architecture decisions, your contributions will have a direct and visible impact.