Jem Young is a US senior software engineer (formerly at Netflix, now at Amazon) and a Frontend Masters instructor focused on the practical full-stack engineering side of large-scale web applications, including system design for senior interviews.
His CourseFlix listing carries Fullstack System Design — covering the architectural patterns that show up in real production full-stack applications: caching, sharding, queues, replication, and the trade-off vocabulary needed for senior-level system-design interviews.
Material is paid and aimed at senior front-end and full-stack engineers preparing for system-design interviews at large tech companies. For broader content, see CourseFlix's System Design & Architecture and Preparing for an interview category pages.