As the biggest CRM SaaS platform in China, it serves more than 10,000 companies, which include more than 1 billion customer records.The system is built with Java (Spring Boot), Go/golang, rust, node.js for the backend, MongoDB, MySQL, and PostgreSQL for storage, React and Vue.js for frontend, Redis for caching, Kafka, and Pulsar for messaging, flutter for android and ios device, and the entire development team of over 300 people is constantly adding new features to the system.
I am the infrastructure team leader, and my team's responsibility is to produce SDKs, basic devops platform (istio and Kubernetes) basic services such as auth and login.