Java Full Stack Developer

Position: Java Full Stack Developer Location: Chicago, IL Duration- 6 Month • Must-have skills for this role: java full stack developer, spring boot , CI /CD Job description: • Develop RESTful APIs using Spring Boot and integrate them with the NPCI request processing system. • Implement microservices architecture with Spring Boot to ensure scalability and maintainability. • Utilize Spring MVC, Spring Data JPA, Hibernate, and DAO patterns for efficient data handling. • Work with relational databases like Oracle and write optimized HQL and SQL queries. • Design and implement transformation logic for AVS to NPCI request conversion using Java and Spring Boot. • Handle data mapping and validation between AVS and NPCI formats. • Ensure compliance with NPCI specifications for financial transactions. • Deploy and maintain microservices on AWS using EC2, S3, and Auto Scaling. • Implement CI/CD pipelines with Jenkins and Docker for automated deployments. • Work with AWS CloudFormation for infrastructure as code setup. • Write unit and integration tests using JUnit and Mockito for backend services. • Debug and resolve production issues, ensuring high availability and reliability. • Collaborate with business analysts, architects, and other development teams to align technical solutions with business goals About Collabera Collabera is a leading digital talent staffing company providing solutions to many of the world's top businesses We have more than 25 years of experience supporting Fortune 500 companies across the U.S and Canada Every year we place more than 10,000 professionals, on average, supporting critical business and IT projects Collabera is also ranked as one of best places to work in 2022 by Comparably.com With Collabera, you have opportunity to: Work on challenging and exciting projects using in-demand skills in industries like financial services and banking, insurance, telecom, technology, healthcare, life sciences and more. Extend a project or re-deploy to another assignment, similar to 80% of employees/contractors who continue with Collabera after the initial project term. Grow your skills through training, workshops, networking events, and so much more.

Created: 2026-03-06