Signal

Signal's messaging protocol has become the gold standard for secure communication—licensed by WhatsApp, Facebook Messenger, and Google for their encryption features. The app itself serves millions of users including journalists, human rights activists, and privacy-conscious people worldwide, processing messages through end-to-end encryption that even Signal cannot read. In an industry dominated by surveillance-based business models, Signal stands apart as a nonprofit funded entirely by donations and grants.

The team of approximately 50 people works fully remotely with quarterly in-person gatherings. As a nonprofit, Signal cannot offer equity compensation, but provides competitive salaries with benefits designed for distributed work: 100% employer-paid health insurance for employees and families, a 401(k) with 100% match up to $20,500/year, unlimited PTO, and extended parental leave. Engineers work with a modern stack including TypeScript and React across iOS, Android, and desktop platforms, contributing to an entirely open-source codebase.