Duolingo is hiring multiple full-time engineering roles. Mission: develop the best education in the world and make it universally accessible. Culture is engineering-driven, friendly, and data-driven. Tech stack includes frontends: Swift, Kotlin, Typ…

Company Description At the Data Vault Project, we’re building a secure data vault and permissioned sharing layer designed to put individuals and organizations in control of their information. Through privacy-first architecture and flexible access co…

Spade is a Series A startup building products for the dairy industry including apps for farm data, machine vision for cows, and embedded microchips for animal health data. The company builds data and AI tools for supply chain and farm management, se…

Faraday is automating the back office for the $600B home services industry (HVAC, plumbers, electricians). Contractors are buried in essential paperwork — permits, warranties, rebates — and our AI agents handle these complex workflows so projects st…

BetterDB is building the tooling ecosystem for Valkey (a high-performance Redis fork). Focus is on observability: historical persistence, pattern analysis, anomaly detection, and Prometheus export. They ship OSS self-hosted and are launching a cloud…

Wave (YC W12) is making Africa the first cashless continent by building affordable, instant financial services for millions of users. We’re the largest financial institution in Senegal and Côte d’Ivoire and are growing rapidly across 9 countries. We…