Job responsibilities: 1 Using TypeScript for backend development, building and maintaining high-performance services; two Responsible for the development, optimization, and maintenance of backend core modules; three Use Docker for service containerization deployment and maintenance; four Maintain and manage backend databases, including MySQL, PostgreSQL, and Redis, and perform database design and performance tuning; five Responsible for daily maintenance and optimization of infrastructure, including Google Cloud or AWS environment management; six Configure and use Sentry for backend service monitoring and problem tracking, quickly respond to and fix online issues; seven Efficiently complete development tasks, respond quickly, and solve problems in a fast-paced work environment; eight Proactively summarize technical experience and efficiently solve product requirements using technological means; nine Continuously monitor and learn new technologies and concepts, and promote technological innovation within the team; ten Write high-quality and clear technical documents, actively share and summarize technology; eleven Participate in code review to ensure code quality and standardization.