Samiran Roy

Operations Associate

Kolkata, West Bengal, India0 mo experience

Key Highlights

Built scalable backend systems for IoT devices.
Developed multiple REST APIs for device management.
Mentored students in core Computer Science subjects.

Stackforce AI infers this person is a Backend Developer specializing in IoT solutions and full-stack development.

Contact

Skills

Core Skills

JavaSpring BootFrontend Development

Other Skills

Java8RestApiMongoDBSQLREST APIsWebSocketSpring Data JPAHTML5Cascading Style Sheets (CSS)Data StructuresProblem SolvingSimple Mail Transfer Protocol (SMTP)Java Database Connectivity (JDBC)Internet Protocol Suite (TCP/IP)Batch Processing

About

🚀 I'm a 2024 B.Tech CSE graduate from Techno International Batanagar (CGPA: 8.64), passionate about building scalable full-stack and backend systems. I specialize in the MERN stack (MongoDB, Express.js, React.js, Node.js), Java 8, and RESTful APIs. I've built real-world applications including:-> A secure Expense Tracker with analytics & category filters A custom URL Shortener with authentication & click analytics A real-time Device Tracking System using WebSockets & Leaflet A responsive UI-only Music School website using Next.js, TypeScript, and Shadcn UI 🌟 Key Skills: Backend: Java 8, Node.js, Express.js, MongoDB, SQL, REST APIs, JWT, WebSockets Frontend: React.js, Next.js (UI-focused), Tailwind CSS, EJS Tools: GitHub, Postman, ThunderClient, Docker (Learning) 💼 Internship: Frontend Mentor at Lissica Tech — conducted hands-on sessions in HTML, CSS, JS, and Bootstrap, strengthening both technical & communication skills. 💻 DSA Practice: Actively solving problems in Java on LeetCode (150+) and GFG (160 Days Challenge). 🎵 Outside of coding, I'm into music composition and acting in short films — hobbies that boost my storytelling, confidence, and creativity. 🤝 Open to: Full Stack Developer | Backend Developer | SDE roles 📬 sroy21191@gmail.com | GitHub: samiran78

Experience

0 mo

Total Experience

Average Tenure

Current Experience

Educare

Computer Science Mentor

Nov 2025 – Present · 6 mos · Kolkata, West Bengal, India · On-site

Mentored Class XI–XII students in core Computer Science subjects aligned with the academic curriculum, including Operating Systems basics, basics of Networking, Data Structures fundamentals, DBMS concepts, HTML, and Python
Focused on building strong fundamentals, logical thinking, and a problem-solving mindset rather than rote learning
Parallelly continued hands-on backend development practice and active preparation for Software Development Engineer (SDE) roles

Java8RestApiJavaSpring Boot

Zediant technologies

Java Backend Intern – Spring Boot, MySQL, REST APIs

Aug 2025 – Mar 2026 · 7 mos · Kolkata · On-site

Developing production backend systems for IoT device management using Java and Spring Boot.
Key Contributions:
Z-Coupler Library (13 commits)
Developed multi-database connector supporting MongoDB and SQL databases (MySQL, Oracle, SQL Server) with unified CRUD interface
Implemented factory pattern for runtime database switching based on configuration
Built batch processing with transaction management for bulk insert/update operations (batch commits, rollback handling, fail-fast/continue modes)
Added success/failure tracking for bulk operations with detailed error logging
Fixed Java 1.8 compatibility issues with modern MongoDB drivers
Ignitus SmartWatch Platform (52 commits)
Developed and maintained 15+ REST APIs for device management: SOS configuration, health monitoring, walk/sleep timers, language settings, battery alerts
Integrated reactive TCP server (architected by senior team) with REST APIs and database layer
Maintained WebSocket integration for real-time device status updates and fixed event handling bugs
Created comprehensive audit logging with Spring Data JPA Specifications (filtering, pagination, date-range queries)
Integrated email notification system using Spring Mail for user onboarding and password reset
API Refactoring & Code Quality
Redesigned API response architecture across all endpoints for consistency (4,500+ lines refactored)
Standardized REST API patterns following MVC architecture and clean code principles
Implemented DTO pattern, validation layers, and error handling
Production Debugging & Support
Resolved 25+ critical issues: MongoDB Java 1.8 compatibility, WebSocket event handling, TCP connection errors, email configuration
Debugged device reconnection logic and connection cleanup in TCP server
Fixed data validation edge cases and improved error handling
Working under the guidance of Solution Architect Benay Debnath, contributing to scalable, reliable, enterprise-grade backend systems and gaining real-world architecture experience.