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Subharanjan Das

@subharanjandas

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Java backend developer building secure REST APIs and scalable systems with Spring Boot and CI/CD.

India

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What I'm looking for

I’m looking for a role where I can build secure, well-tested REST APIs and grow into event-driven, real-time systems. I want ownership from design through CI/CD deployment, and a team that values clean engineering practices.

I’m a Java Backend Developer focused on building RESTful APIs and scalable backend systems. I’ve delivered 3 end-to-end backend projects independently, taking features from requirements to Dockerized deployment with CI/CD via GitHub Actions.

I build secure, test-driven services using Spring Boot, Spring Security (JWT), Hibernate/JPA, and MySQL. Across projects, I achieved 90%+ unit test coverage with JUnit 5 and Mockito, and I’ve worked on role-based access control and endpoint token validation.

I’m also comfortable with multithreading and concurrency fundamentals, and I apply solid engineering practices with Git, Linux/Ubuntu, and Postman. Currently, I’m deepening my skills in Vert.x, Apache Kafka, and WebSockets to grow into event-driven, real-time backend systems.

Experience

Work history, roles, and key accomplishments

Frontend Intern

Glucian India Pvt. Ltd.

Jun 2023 - Aug 2023 (2 months)

Built responsive web pages using HTML5, CSS3, and JavaScript for 500+ users, including improvements to navigation flow. Resolved cross-browser compatibility bugs across Chrome, Firefox, and Safari while participating in Agile sprints.

HTML5 CSS3 JavaScript Responsive Design Cross Browser Testing Agile

Java Backend Intern

QSpiders Training Institute

Jan 2023 - Apr 2023 (3 months)

Developed 5+ Java applications covering Core Java, OOP, Collections Framework, and JDBC. Implemented CRUD operations with JDBC and MySQL, optimized SQL queries, and designed normalized schemas with indexing and unit testing principles.

Java OOP JDBC MySQL SQL CRUD Indexing Unit Testing

Education

Degrees, certifications, and relevant coursework

Gandhi Institute For Technology (GIFT)

Bachelor of Technology, Computer Science & Engineering

2021 - 2025

Grade: CGPA: 7.8/10

Pursuing B.Tech in Computer Science & Engineering at Gandhi Institute For Technology (GIFT) in Khurda, Odisha (2021–2025) with CGPA 7.8/10. Coursework includes DSA, DBMS, OS, Computer Networks, and Software Engineering.