Niraj Kumar
Software Development Engineer @Capital Business Systems Private Limited Cbsl Group
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WORK HISTORY
Software Development Engineer @Capital Business Systems Private Limited Cbsl Group
I work as a Software Development Engineer (Full Stack Developer) at CBSL Group, developing a Document Management System for the High Court using Java and Angular. I handle backend and frontend development, use PostgreSQL for data, and implement search with Apache Solr.
EDUCATION
Gems english School
10th, Common
Tapeswar singh high school
12th, PCM
KJ College Of Engineering & Mangement Research, Pune
BE/B.tech, Computer Engineering
QSPiders Institute - Software Development
Java Full Stack Developer
ABOUT NIRAJ KUMAR
I am a Software Engineer with 2.5+ years of experience in building secure, scalable, and high-performance backend systems using Java and Spring Boot. My expertise spans RESTful API development, microservices architecture, SQL databases, JPA/Hibernate, and API security, with a strong focus on delivering reliable and maintainable enterprise solutions.I have contributed to large-scale, production-grade applications in the banking and government domains, where I designed and implemented backend services, integrated external systems, and ensured compliance with security and regulatory standards. I have hands-on experience with Kafka-based asynchronous processing, JWT-based authentication, and API gateway integrations, enabling fault-tolerant and scalable workflows.In addition, I have improved system reliability and development efficiency through comprehensive unit testing (JUnit & Mockito), CI/CD automation using Jenkins, and backend performance optimization. I am also experienced in handling production issues, optimizing database queries, and collaborating closely within Agile teams to deliver high-quality releases.Passionate about backend engineering and system design, I enjoy working in challenging environments that encourage continuous learning, clean architecture, and impactful problem-solving.
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