Amazon Leo is an initiative to increase global broadband access through a constellation of 3,236 satellites in low Earth orbit (LEO). Its mission is to bring fast, affordable broadband to unserved and underserved communities around the world. Amazon Leo will help close the digital divide by delivering fast, affordable broadband to a wide range of customers, including consumers, businesses, government agencies, and other organizations operating in places without reliable connectivity. As a Software Development Engineer you will own the development, implementation, and test of the toolings and services on the Software Lab team. You will work with engineering teams across ground and space systems, to understand how the system functions and deliver integrated solution to improve the lab health. You will be focused on driving automation and operational excellence of the full technical stack. The ideal candidate will be detail oriented, have strong organizational skills, able to work independently, and maintain professionalism under pressure. You should have deep knowledge of software engineering practices, understand how software and hardware systems interact, and can drive design and implementation of operational execution of objectives in complex systems. 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, develop, and validate new data plane and control plane features end-to-end, from stakeholder requirements gathering through production-ready delivery with comprehensive test coverage. Architect and maintain Infrastructure as Code (IaC) for the software lab, including container image pipelines, deployment orchestration, automated runbook workflows, and self-healing mechanisms with health checks and rollback. Build and extend software test infrastructure services spanning fleet automation, scheduling, and resource reservation. Drive continuous improvement of service KPIs including availability, uptime, and latency. Lead team-level security initiatives including fine-grained access control, vulnerability triage across fleet and software dependencies, and application security reviews. Champion operational excellence by troubleshooting production issues, grooming backlog requirements, and delivering features through iterative sprint cycles. Mentor engineers on cloud architecture patterns, infrastructure best practices, and scalable system design.