Bharat Sagar

Senior Java / Spring Boot Developer with 12.8 years of overall IT experience and 8.8+ years of experience in Java-based enterprise application and backend development. Strong experience in Java 17, Core Java, Spring Framework, Spring Boot, Spring MVC, Spring Cloud, Microservices, RESTful Web Services, GraphQL APIs, Hibernate/JPA, MyBatis, SQL, Oracle, PostgreSQL, MySQL, and MongoDB. Experienced in designing, developing, maintaining, integrating, debugging, troubleshooting, and supporting enterprise backend applications.

Strong background in API development, application integration, production support, defect resolution, root cause analysis, database development, and performance troubleshooting. Working knowledge of Apache Kafka, Docker, Kubernetes, Azure DevOps, and CI/CD concepts, with an interest in applying these technologies in modern cloud-native and event-driven architectures.

Senior Consultant / C1 at CAPGEMINI TECHNOLOGY SERVICES INDIA LIMITED (2025-07 – 2026-05)

Project: Development & Implementation | Domain: Banking Technology Stack: Java 17, Java/J2EE, Spring, Spring Boot, Microservices, GraphQL API, PostgreSQL, MyBatis

• Designed, developed, and maintained backend services using Java 17, Spring Boot, and Microservices architecture.
• Developed and implemented GraphQL APIs to support application and business requirements.
• Implemented backend functionality using Java 17, Spring Boot, Microservices, MyBatis, and PostgreSQL.
• Investigated and resolved production defects through debugging, technical analysis, root cause investigation, and application-level fixes.
• Resolved production pagination issues in backend APIs by identifying incorrect page/offset handling and ensuring consistent paginated responses.
• Resolved production sorting issues by troubleshooting sort-field and ordering behavior and implementing fixes for accurate and consistent API responses.
• Supported application maintenance, integration, troubleshooting, and production issue resolution activities.

Senior Systems Analyst at SONATA SOFTWARE SOLUTIONS LIMITED (2021-04 – 2025-07)

Project: Trade | Domain: E-Commerce / Trade Finance | Implementation & Support Technology Stack: Java/J2EE, Spring, Spring Boot, REST, Microservices, Oracle 19c

• Designed, developed, and maintained backend services using Java, Spring Boot, and Microservices architecture.
• Developed and maintained REST APIs and RESTful web services for application and business requirements.
• Implemented backend functionality using Java, Spring, Spring Boot, REST APIs, and Microservices.
• Applied clean architecture principles during backend application development.
• Developed and optimized SQL queries using Oracle 19c to support application requirements.
• Resolved production pagination and sorting issues in REST APIs through root cause analysis across application, API, and database layers.
• Investigated and resolved high-priority production defects through systematic debugging and sustainable fixes.
• Performed troubleshooting, root cause analysis, defect resolution, application maintenance, and production support throughout the development lifecycle.
• Contributed to implementation and support activities for TechSource, a customer-facing web shop delivered on the Hybris (SAP Commerce Cloud) platform.

Software Engineer at CELSTRA INFOCOM PVT. LTD. (2017-04 – 2020-11)

Project: MIOMAP | Domain: E-Commerce / Mobile Workforce Management Technology Stack: Java/J2EE, Spring, Hibernate, PrimeFaces, JSF, Oracle 11i

• Designed, developed, and maintained backend services using Java/J2EE and Spring.
• Created and supported REST APIs and DAO components for application requirements.
• Used Hibernate/JPA for ORM and persistence requirements.
• Developed and optimized complex SQL queries and supported database/schema-related activities.
• Implemented API-based communication using JSON between application servers and client devices.
• Supported online/offline mobile application capabilities and data synchronization between client and server.
• Monitored and troubleshot production issues to support application stability.
• Developed web application functionality using PrimeFaces 5.0 and JSF.
• Supported mobile workforce and business solutions covering Sales Force Automation, Deliveries & Fulfillment, Direct Store Deliveries, Van Sales, Distribution Management, Retail Execution, Route to Market, and Mobile Registration.
• Supported real-time communication, workforce planning, scheduling, GPS-based Track & Trace, dynamic mobile forms, workflows, and two-way data flow for field-based business processes.

Software Engineer at OPSRAMP (2014-10 – 2017-02)

• Worked on enterprise application development and support activities.
• Contributed to Java-based application development and technical implementation.
• Supported application troubleshooting, debugging, and technical issue resolution.
• Participated in enterprise software development and application support activities.

Trainee Engineer at NET ENRICH TECHNOLOGIES PVT. LTD. (2013-03 – 2014-09)

• Supported software development and technical implementation activities.
• Gained experience in enterprise application development and software engineering practices.
• Contributed to application support and technical activities.

Master of Computer Applications in MCA – Dr. B.V. Raju Institution of Computer Education, affiliated with Andhra University (2010)

Bachelor of Science in MPC – Sri A.S.N.M. Government College, affiliated with Andhra University (2007)