FusionAuth

FusionAuth's mission is to make authentication and authorization simple and secure for developers building web and mobile applications. They offer a unique deployment model (self-host on-prem or in your cloud or run in their cloud), an API-first approach, a mature product with eight+ years of development, and a founder-led engineering team. The core software is commercial with a free tier and they open source much supporting infrastructure. Positions vary between remote and onsite in Denver, CO. Apply and learn more about benefits and salaries at https://fusionauth.io/careers/.