Backend Engineer - Service Platform

Role SummaryWe are seeking a highly skilled Backend Engineer to join our Credit Middle Platform team. This role will focus on designing and developing core middle-platform systems such as Notification Services, Invoice Management, and User Services to support internet financial credit products. The engineer will play a critical role in building scalable, reliable, and reusable platform capabilities to accelerate business innovation and ensure operational stability.ResponsibilitiesDesign, develop, and maintain the Credit Middle Platform systems, including notification (SMS, email, push), invoice management, and user center modules.Conduct requirement analysis, high-level and detailed design, functional development, and produce technical documentation.Ensure system reliability through regular maintenance, problem identification, and performance optimization.Collaborate with product managers and business teams to support new credit product features with middle-platform capabilities.Drive continuous improvement in system scalability, architecture evolution, and development best practices.RequirementsBachelor’s degree or above in Computer Science or a related field, with 5+ years of Java development experience; experience in leading internet or fintech companies is a strong plus. Strong foundation in Java, familiar with J2EE architecture, proficient in I/O, multithreading, collections, and other core frameworks. In-depth knowledge of distributed systems, caching, and messaging mechanisms. Proficiency in Spring Cloud, Dubbo, and MyBatis frameworks; familiar with unit testing and TDD; solid hands-on experience with Linux and UML. Skilled in MySQL database design and performance optimization. Strong logical thinking, problem analysis, and communication skills; proactive and responsible with the ability to thrive under pressure and collaborate in a team environment. Experience in internet financial credit product-related projects is preferred. A strong sense of product ownership is a plus. Proficiency in English, with the ability to use it as a working language.