Senior Java Developer (Microservices & Enterprise Architecture)

About the Opportunity We are seeking for highly skilled Senior Java Developers who are able to drive development, optimization, and scaling of robust backend distributed systems and microservices. You will be responsible for building high-concurrency interfaces, tuning performance, and collaborating across international borders to maintain the highest levels of code quality and system stability. Key Responsibilitie sCore Backend Development : Deliver expert-level Java Object-Oriented Programming (OOP) design and develop high-performance interfaces using the Spring ecosystem .Architecture & Microservices : Design, build, and maintain scalable microservice architectures utilizing Spring Cloud and distributed system design patterns .Database & Performance Tuning : Manage and optimize data layers (PostgreSQL, MySQL, Oracle), executing complex SQL optimization, database performance tuning, and JVM tuning .CI/CD & Infrastructure : Work closely with modern deployment pipelines and container infrastructure (Docker, Kubernetes) to ensure seamless application delivery .Lifecycle Management : Use tools like Gradle, Git, and Jira to manage codebases and track sprints effectively within an agile environment . Requirements & Qualificatio ns1. Technical Stack & Experience (Must-Hav e)Experienc e: 5+ years of verified professional Java backend development experienc e.Framework s: Masterful command o f Spring Boot, Spring MVC, Spring Cloud, Spring Data JPA, and Hiberna t e.Databases & OR M: Deep experience wit h PostgreS QL (or similar enterprise relational databases) accompanied by solid ORM mapping skill s.Build & Tool s: Strong proficiency with project management and automation tools, specificall y Gradle, Git, and Ji r a.2. Specialized Track Preferences (Nice-to-Have / Strong Pluse s)Enterprise Backgroun d: Prior development or operation/maintenance experience wit h Lenovo internal syste ms is highly preferre d.Multilingual Capabilit y: Fluency i n Mandarin Chine se (written and spoken) is a significant plus, as certain business tracks require daily collaboration with regional stakeholder s.Domain Contex t: Experience working on high-concurrency projects or financial/finance application system s.3. Education & Soft Skil lsEducatio n: Bachelor’s degree or above in Computer Science, Software Engineering, or a closely related fiel d.Attribute s: Exceptional logical thinking, a high sense of ownership over code quality, and comfort working in fast-paced agile setup s.What We Off erExposure to massive enterprise-level architectures and global-scale application deploymen t.A diverse, cross-functional, and truly international team environmen t.Clear technical career progression path s.