Signal

Signal is making private communication simple. As an Open Source project supported by grants and donations, Signal can put users first. There are no ads, no affiliate marketers, no creepy tracking. Just open technology for a fast, simple, and secure messaging experience. We design open protocols, develop Open Source software, and give it away for free. Tech Stack: iOS team: Swift & Objective-C. Android team: Java. Desktop team: Electron, web stack (js, css, etc.). Service team: Java, AWS, DevOps. Please email us your resume to: Workwithus@signal.org