Software Development Engineer II

Are you excited about building software that operates at massive scale and directly impacts millions of customers? As a Software Development Engineer II at Amazon, you will design, implement, and deliver features across the full software development lifecycle. You will tackle complex technical problems, turning ambiguous requirements into clear, maintainable solutions. This role offers you the opportunity to work on impactful projects where your contributions shape the quality, reliability, and performance of the systems your team owns. You will collaborate closely with engineers, product managers, and stakeholders to understand customer needs and translate them into robust software. If you are a self-starter who thrives on solving hard problems and mentoring others, we want to hear from you. Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Key job responsibilities - Design and implement software solutions that enable new features and improvements, balancing tradeoffs across scalability, maintainability, performance, and security. - Contribute across the full software development lifecycle — from product definition and scoping through design, coding, testing, deployment, and ongoing operations. - Identify root causes of operational issues and drive permanent fixes, continuously improving system reliability and your team's operational processes. - Collaborate with customers, stakeholders, and cross-functional teams to understand business and customer needs, ensuring the right solutions are delivered. - Mentor and coach other engineers through code reviews and knowledge sharing, producing clear documentation so that your software can be maintained and extended by others. A day in the life You will start your day reviewing metrics and operational health for the services you own, then shift into design discussions or code reviews with your teammates. Expect to spend focused time writing and testing code, working through technical challenges, and refining your solutions based on peer feedback. You will regularly connect with product managers to align on priorities, and you may lead a deep dive into a recent operational event to ensure lasting improvements are in place. About the team We own Leo's Tier 1 service for Leo Assets and Configs. 100+ clients, 100+ APIs, and 100+ tps. It meets Leo's highest security bar to operate safe constellation providing internet to customers. Our team is dedicated to building reliable, scalable software that makes a meaningful difference for our customers. We value collaboration, technical rigor, and a commitment to continuous improvement. Every engineer on the team has a voice in shaping our technical direction and the opportunity to grow through hands-on problem solving and mentorship. We are focused on delivering high-quality solutions and are always looking for new ways to raise the bar together.