Vivek K.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 7, 2026.

☞ Top-Rated Plus Java-J2EE, Spring Boot Specialist with 11+ Years of Experience With over 3000+ hours on Upwork, a Top-Rated Plus rating, and a 100% job success score, I am a seasoned professional specializing in Web API development using Java and Spring Boot. I excel in solving business problems with technical solutions and have extensive experience in designing enterprise-level applications using microservice and event-driven architectures. Key Expertise: ☞ API Development: Proficient in writing RESTful Backend APIs with Spring Boot. ☞ Database Modeling: Skilled in designing and managing databases. ☞ Microservices: Expertise in deploying microservices on AWS and on-prem servers. ☞ Testing: Strong focus on unit, integration, and black-box testing to ensure high code coverage and reliability. ☞ CI/CD: Implementing continuous integration and deployment pipelines using Jenkins. ☞ Code Quality: Ensuring code quality and security with SonarQube and WhiteSource. Notable Projects: ☞ Lending Application: Used in banking systems for loan processing. ☞ Corporate/Retail Banking Application: Facilitates banking for corporate users and individuals via mobile and web interfaces. ☞ Epocrates App: The No. 1 application in the USA for medical professionals. Core Skills: ☞ Technology used: Java 8, 11, 17, 21 Spring Framework + Spring boot + Spring Batch + Spring Data JPA Hibernate + JPA MySql + Oracle + DynamoDB + MongoDB Apache Kafka Docker Compose Restful API Maven + Gradle Aws lambda + Aws EC2 + Aws ECS + Aws S3 + Aws Step function JWT + OAuth ☞ Tools used: Prometheus Grafana Gray log Jenkins White source Eclipse + IntelliJ+ VS Code SVN + GitLab + Bit bucket Confluence + Jira SonarQube Mockito +Junit 5 Swagger + Postman Let's Connect: Interested in leveraging my expertise for your project? Let's connect for a short call to discuss your needs. Feel free to reach out to discuss how I can help bring your project to success!