Our stack

Technologies we ship on

We're deliberate about our toolkit. Nothing here is because it's trendy ? every item on this list has earned its place through production use, usually at scale and often under pressure.

Backend

Java

Kotlin

Spring Boot

JavaLite

ActiveJDBC

Python

Go

Node.js

Frontend

React

TypeScript

Vue

Next.js

Angular

HTML & CSS

Mobile

iOS / Swift

Android / Kotlin

React Native

Flutter

Data & Infra

PostgreSQL

MySQL / MariaDB

Redis

Kafka

Docker

Kubernetes

AWS

GCP

Terraform

Our open source

We maintain JavaLite and ActiveJDBC

Two open-source projects started by our founder and still actively maintained. You'll see both in production in a surprising number of places ? and we use them on the majority of our own builds.

JavaLite ActiveJDBC

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