At Union, we are solving one of the hardest challenges in AI infrastructure today: enabling high-velocity iteration while maintaining seamless production-readiness for AI workloads at scale. Flyte, the open-source project we steward, is the emerging standard for modern data and AI orchestration, with numerous leading technology organizations - like LinkedIn, Spotify, and Gojek - running millions of mission-critical workloads on the platform. We have a deep bench of infrastructure veterans from companies in the Big Three and beyond and a technical founding team who originally created Flyte while at Lyft. Our Back-End Engineers work on cutting edge problems, many of which will be open sourced, providing an opportunity to share with the broader open source community. In this role, you will: Design large scale, multi-tenant distributed control planes that manage complicated ML and Data Processes, Design modern Golang based gRPC services, Build core algorithms to help distributed ML and Data systems scale more easily, Build core distributed scheduling systems on Kubernetes, Build simple, elegant APIs that delight our customers - ML Engineers, Data Engineers, Data Scientists and Systems Administrators, Implement high performance Golang applications that can scale to millions of operations per second, Work with the open source community and internal team members to deliver value across multiple organizations.