Keybase is! | NYC | SF | CHI | On-site.  We're building crypto for everyone, and we're making our tools/apps for cryptography and secure teamwork on all platforms: iOS, Android, macOS, Windows, and Linux.
Our software is open source, written in Go and ES6; our apps' interfaces are built in modern Electron/React/React Native.
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Ask HN: Who is hiring? (August 2017)