Brajesh Kumar
Java Backend Engineer with 1 year of full-time experience developing and supporting enterprise applications using Java, Spring Boot, J2EE, JDBC, JPA, REST APIs, and MySQL
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About
Java Backend Engineer with 1 year of full-time experience developing and supporting enterprise applications using Java, Spring Boot, J2EE, JDBC, JPA, REST APIs, and MySQL. Experienced in backend development, application debugging, log analysis, defect resolution, API troubleshooting, automated testing, and microservices. Strong understanding of SQL, OOP, SDLC, Agile, and backend architecture, with hands-on experience building reliable and maintainable backend services.
Experience
Java Developer at YourDOST (2026-01 – Present)
- Developed and maintained scalable backend services using Java, Spring Boot, Spring JDBC, REST APIs, and MySQL.
- Designed and implemented RESTful APIs for appointment booking, tracking, communication, and business workflows.
- Implemented backend business logic, database operations, validation, exception handling, and audit logging using Spring JDBC, JPA, and Hibernate.
- Built multi-channel notification workflows across Email, SMS, WhatsApp, and telephony with scheduled job processing.
- Debugged and resolved production issues using API testing, log analysis, database inspection, and rootcause analysis.
- Collaborated with frontend/backend teams to deliver and troubleshoot production features.
- Used Git, GitHub, Postman, and Agile practices for development, testing, and delivery.
Software Developer Intern at Netlink (2024-12 – 2025-03)
- Developed backend modules for enterprise applications using Java, Spring Boot, Spring Data JPA, Hibernate, and JPA Criteria API.
- Implemented secure API routing, traffic management, and gateway services using Spring Cloud Gateway and microservice architecture principles.
- Designed and developed an HTML-to-PDF generation module for dynamic document creation, reporting, and business process automation.
- Increased automated test coverage from 30% to 96% using JUnit and Mockito, improving application quality, maintainability, and release confidence.
Education
B. Tech in Computer Science and Engineering in Data Science – Oriental Institute of Science and Technology, Bhopal, Madhya Pradesh (2021-10 – 2025-06)
12th in PCM – Sushant Public School Noonfara, Muzaffarpur, Bihar (2019-04 – 2021-05)
