[Responsibilities] Design and develop software application using Node.js, NestJs platform, ensuring performance and scalability. Optimize database schemas and complex queries. Integrate RESTful API into the application, working closely with the frontend team. Follow the correct software development process (reporting progress and job status, etc.). Detect and fix bugs and improve system performance. Analyze, propose solutions, and enhance software architecture. [Requirements] 2 years experience in backend developer Node.js, NestJS and related frameworks, proficient in OOP and TypeScript., software engineer. Good at English communication is a MUST. Experience with database management systems (DBMS) such as MySQL, PostgreSQL,… Advanced skills in using Elasticsearch for fast and scalable search functionality. Experience with real-time technologies (WebSocket, SocketIO, etc.) and caching solutions (Redis, etc.). Proficient in applying Unit Test standards.