Common Prefix is a blockchain research & development company focused on interoperability, scalability, and usability of blockchain systems. The team combines formal research with production-grade engineering, publishes in top-tier venues, and builds…

Blackbird builds web and mobile apps for startups and innovative companies. They work on greenfield projects with small, veteran teams that have lots of autonomy. Everyone is a remote contractor; the culture is low-drama, collaborative, with minimal…

Ezra is a venture-backed startup building at the intersection of sustainable finance and artificial intelligence. We're building a platform to accelerate capital deployment into climate solutions and other world-positive investments. I’m Rob, the CT…

Spruce lets users control their data across the web. Instead of users logging into platforms, we believe platforms should request to access data vaults controlled by users. The demand for trusted digital ID is accelerating as AI deepfakes begin to …

RepSpark is a SaaS B2B wholesale e-commerce platform for apparel, footwear, and accessories. Stack: C#/.NET (Rider on macOS), GraphQL, React, TypeScript, PostgreSQL, AWS (CDK). We're actively hiring: Senior Product Engineer (Full-Stack) — own outcom…

Chroma is the open-source search and retrieval database for AI applications. It supports dense vector, sparse vector, regex, and full-text search. They support local, single-node, and cloud hosting. The team is ~14 engineers and works in Rust, Pytho…