Azar API Team is responsible for the backend of the Azar service, handling thousands of transactions per second efficiently in a real-time environment with tens of thousands of concurrent users. The primary technology stack includes Java and Spring, with a gradual expansion into Kotlin. This role involves developing and operating multi-tenant backend systems, designing and developing APIs for various services, and ensuring scalability and maintainability. It also includes developing and operating service features in collaboration with individual service teams, and ensuring platform quality and stability through high availability, high performance architecture, and proactive monitoring. The engineer will also contribute to organizational growth through test code writing, code review culture, and process improvement.