A deep understanding of the modern front-end ecosystem and experience applying frameworks/tools (React.js, Webpack, and Node.js) and patterns to complex, production web applications Comfortable defining and building robust APIs with a strong understanding for different protocols like Websockets, REST, RPC frameworks, etc Experience with database schema design and an understanding of query performance that translates to performant, scalable, and reactive products Deep appreciation for building applications with observability as a first-class principle and familiarity with application performance monitoring Preferably extensive experience coding in TypeScript and Go