Flip is a complex social platform developed at a great scale with service-oriented architecture. We’ve created a code ecosystem with over 40 auto-scalable microservices behind the API gateway integrated with a unified logging layer and common monitoring. We have more than 40 microservices which we have created in accordance with microservices best practices. Those homogeneous Node.js microservices rely on the Nest framework. Such an approach allows us to build a microservice that is production-ready in 15 minutes. What is more, we use HA/HPA systems which are scalable depending on the user traffic. When it comes to databases, our go-to solutions are MongoDB, Scylla, and SQL.