Yuvaraj V.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Highly accomplished Java Developer specializing in architecting scalable, high-performance enterprise systems. Expert in designing robust Spring Boot microservices, secure REST APIs and highly optimized database layers. I help businesses modernize legacy monolithic structures, eliminate performance bottlenecks, and deliver production-ready infrastructure built to scale. Domain Expertise: Banking & Finance, eCommerce, Purchase & Procurement, Legal Tech. Technical Ecosystem: • Backend & Frameworks: Java (Core & Advanced), Spring Boot, Spring MVC, Struts, Swing • API & Security: RESTful API Design, JWT, Keycloak, Swagger / OpenAPI, Postman • Databases & ORMs: PostgreSQL, MySQL, JPA / Hibernate, jOOQ • DevOps & CI/CD: Docker, GitLab CI/CD, Git, Linux / Ubuntu • Testing & Quality Assurance: JUnit, TDD (Test-Driven Development), Testcontainers, Integration & Unit Testing, Postman Automation, Selenium, Playwright • Enterprise Tools & Utilities: JasperReports, Maven, Gradle, Jira, Eclipse, NetBeans, JSoup, PDFBox, Apache Kafka • Frontend Support: Thymeleaf, ZK Framework, Responsive Web Applications Technical Capabilities & Delivery: • Spring Boot Microservices: Designing scalable, fault-tolerant, and maintainable distributed architectures. • RESTful API Development: Crafting secure, rigorously documented, and production-grade APIs. • Database Design & Optimization: Advanced structuring and tuning using PostgreSQL, MySQL, JPA, Hibernate, and jOOQ. • Legacy System Modernization: Seamlessly migrating complex monoliths into modern microservice ecosystems. • CI/CD & DevOps Automation: Setting up robust deployment pipelines using GitLab CI/CD and Docker. • Backend Integration: Connecting complex third-party APIs, secure payment gateways, and enterprise middleware. • Performance Tuning: Diagnosing application bottlenecks and writing optimized queries for maximum throughput. • Code Quality & Mentorship: Implementing clean code practices strictly aligned with SOLID principles. Why Clients Choose Me: • Battle-Tested Enterprise Mastery: A proven track record of handling massive, high-stakes enterprise codebases successfully. • Rigorous Quality Assurance: Zero-compromise, bug-free delivery driven by thorough TDD and automated integration testing. • Milestone-Driven Execution: Predictable, transparent project timelines aligned with your specific business goals. • Seamless Collaboration: Clear, proactive, and highly professional communication throughout the project lifecycle. • Full-Lifecycle Ownership: Comprehensive support spanning from initial requirement gathering to post-delivery maintenance. • Clean Code Guarantee: I write enterprise-grade, highly maintainable code that your team can scale with ease.