About this role
We are looking for a Software Development Engineer to design, build, and operate core platform components of the UNS service. You will work on distributed systems challenges including workflow orchestration, multi-region resilience, quota management, and real-time monitoring — at a scale that directly impacts AWS network capacity delivery. Key job responsibilities - Design and implement features for the UNS workflow engine, including the Decider, Activity Worker, and State Service components - Build and operate multi-region serverless infrastructure using AWS Lambda, DynamoDB, SWF, SQS, and EventBridge - Develop libraries used by 30+ customer teams to automate network device operations - Improve platform reliability through fault injection testing, alarm tuning, and automated recovery mechanisms - Participate in on-call rotation, triaging operational issues across commercial and ADC partitions About the team The Unified Network Scaling (UNS) team builds and operates the workflow orchestration platform that powers network scaling across AWS's global infrastructure. UNS processes thousands of workflow executions daily, automating the deployment of network racks, bricks, and spans across 40+ regions. Our platform is used by 30+ networking teams to define, execute, and monitor complex multi-step device provisioning and deployment workflows that directly impact AWS's ability to add network capacity.