RevenueCat

RevenueCat makes building, analyzing, and growing mobile subscriptions easy. We launched as part of Y Combinator's summer 2018 batch and today are handling more than $2B of in-app purchases annually across thousands of apps.

We are a mission driven, remote-first company that is building the standard for mobile subscription infrastructure. Top apps like VSCO, Notion, and ClassDojo count on RevenueCat to power their subscriptions at scale.

Our 70 team members (and growing!) are located all over the world, from San Francisco to Madrid to Taipei. We're a close-knit, product-driven team, and we strive to live our core values: Customer Obsession, Always Be Shipping, Own It, and Balance.

We have an API, a web dashboard, and a proliferation of mobile SDKs.

The API is Flask + PSQL, the web dashboard is a React app, and the mobile SDKs are written in whatever language the target platform is.

Our API has to deal with a massive amount of requests and there are going to be many interesting scaling problems in the future for us.

On the mobile SDK side, it is a great challenge in providing sane and native-feeling SDKs to many platforms. A great opportunity for a polyglot who cares about developer experience.