Senior Java Developer

Responsibilities:Design, develop, and optimize back-end systems for mobile applications (Apps) and websites, ensuring efficient and reliable service support.Participate in business requirements analysis and collaborate closely with product managers and front-end teams to provide technical solutions.Design and implement high-performance, scalable back-end architectures, and optimize existing systems.Develop and maintain back-end services based on frameworks like Spring Boot and Spring Cloud.Design and maintain database structures (e.g., MySQL, PostgreSQL), optimize query performance, and ensure data consistency.Integrate and manage third-party services such as payment gateways, message queues, and caching systems.Build and maintain efficient APIs to ensure smooth data communication between front-end and back-end.Implement automated testing and CI/CD pipelines to ensure code quality and delivery efficiency.Troubleshoot, analyze, and resolve technical issues in the system.Stay updated with industry trends, optimize technical solutions, and contribute to team skill improvements.Requirements:Bachelor’s degree or higher in Computer Science, Software Engineering, or related fields.3+ years of experience in Java development with a strong foundation in Java and familiarity with Java 8+ features.Proficient in Spring Boot, Spring Cloud, and other mainstream frameworks; familiar with microservice architecture.Skilled in database design and optimization, proficient in SQL query optimization, and familiar with NoSQL databases (e.g., Redis, MongoDB) is a plus.Familiar with knowledge of message queues (e.g., RabbitMQ, Kafka) and distributed system design and implementation.Experienced in designing RESTful APIs; familiarity with GraphQL or gRPC is a plus.Practical experience in front-end and back-end separation architecture, capable of efficiently supporting front-end requirements.Familiar with Linux operating systems and capable of performing basic server maintenance operations.Proficient in version control tools like Git and experienced with DevOps tools and processes (e.g., Jenkins, Docker, Kubernetes).Strong problem-solving skills, passion for technology, and willingness to learn new technologies continuously.Excellent communication and teamwork skills, with the ability to work under pressure.Preferred Qualifications:Experience in designing and developing large-scale, high-concurrency systems.Familiarity with cloud service platforms (e.g., AWS, Aliyun, GCP) and related technologies.Hands-on experience in mobile application back-end development, including push notifications and payment integrations.