Responsibilities: Assist in the development and maintenance of enterprise-level web applications, including system architecture design and module decomposition Write clean, scalable, and high-performance backend code using Spring Boot Design and implement secure, stable, and high-concurrency RESTful APIs Participate in Agile/Scrum processes, including sprint planning, daily stand-up meetings, and code reviews Quickly identify and resolve technical issues in development, testing, or production environments to ensure system stability Support deployment, release, and monitoring processes while gradually learning and applying DevOps practices (e.g., Jenkins / GitLab CI) Gain familiarity with mainstream cloud development models (e.g., AWS, GCP, Alibaba Cloud) Collaborate with frontend frameworks like React or Vue to integrate APIs and enhance user experience and system consistency