India · Open to full-time SDE roles
Himadri Karan
Java Full-Stack Developer
Full-stack developer specializing in Java, Spring Boot, and React. I build scalable backend systems, secure REST APIs, and real-time web applications with a focus on performance, clean architecture, and user experience.
About
Focused on useful software
I am a Java Full-Stack Developer focused on building scalable and reliable web applications using Spring Boot and React. I enjoy turning ideas into real-world systems with clean architecture, strong backend logic, and smooth user experiences. I care about performance, maintainability, and writing code that is easy to scale and debug.
- Strong foundation in DSA and OOP
- Full-stack developer (Java, Spring Boot, React)
- Built real-world scalable web applications
- Selected for TCS Digital (NQT 2026)
Skills
Tools I use daily
Languages
- Java
- Node.js/TS
- SQL
- Python
Backend
- Spring Boot
- Spring Security
- REST APIs
- PostgreSQL
- Express.js
Frontend
- HTML, CSS & JS
- React
- Next.js
- Tailwind CSS
- Bootstrap
Tools & DevOps
- Git & GitHub
- Docker
- Postman
- Github Copilot
Projects
Selected work
Experience
Professional exposure
QA Automation Intern
VWO (Freelance)
Jan 2025 — Feb 2025
Built an end-to-end test automation framework and improved testing reliability using Playwright and AI-assisted validations.
- Built a Playwright automation framework using Page Object Model (POM)
- Automated critical user workflows across multiple browsers
- Integrated Gemini AI API for intelligent test validation
- Generated HTML-based test execution reports for analysis
Artificial Intelligence & Data Analytics Intern
AICTE – Edunet Foundation (Skills4Future, Shell India)
Aug 2025 — Sep 2025
Completed a 4-week internship focused on AI, data analytics, and green skills through an industry-academic collaboration program.
- Worked on Artificial Intelligence and Data Analytics fundamentals
- Explored real-world applications in sustainability and green skills
- Completed structured virtual internship under AICTE & Shell India program
Web Development Intern
ApexPlanet Software Pvt. Ltd.
Dec 2025 — Jan 2026
Completed a web development internship focused on frontend development using HTML, CSS, and JavaScript.
- Built responsive web pages using HTML, CSS, and JavaScript
- Improved UI structure and layout consistency
- Completed project-based learning and assessment tasks
Education
Academic foundation
Techno Engineering College Banipur, MAKAUT
B.Tech in Computer Science and Engineering
2022 — 2026
- CGPA: 7.7/10 (till 7th semester)
- Relevant coursework: DSA, DBMS, OS, CN, ML
- Department merit scholarship recipient
West Bengal Council of Higher Secondary Education
Higher Secondary (Science)
2020 — 2022
- Score: 84%
- Subject: Physics, Chemistry, Mathematics, Biology
West Bengal Board of Secondary Education
Secondary (General)
2020
- Score: 86%
- Computer Science club member
Certifications
Validated expertise
3rd Place - Smart India Hackathon (College-Level)
SIH, Government Administration, India
2025
AWS Academy Graduate - Cloud Foundations
Amazon Web Services
2025
Software Engineer
HackerRank
2025
Agile Software Development
OpenLearn University
2025
HackerRank Gold & Silver Badges - SQL & Java
HackerRank
2025
Google Solution Challenge - GDG on Campus
Google Developer Groups (GDG)
2025
Microsoft Cloud & Networking Foundations
Coursera, Microsoft
2023
Foundations: Data, Data, Everywhere
Coursera, Google
2024
Interests
Areas I explore
Backend Architecture
Designing scalable backend systems using Spring Boot, REST APIs, and well-structured data models with clean architecture principles.
Real-time Distributed Systems
Exploring WebSockets, event-driven systems, Kafka, Redis, and building low-latency real-time applications and dashboards.
Applied AI Engineering
Working with LLMs, RAG pipelines, prompt engineering, and integrating AI services into real-world applications.
DevOps & Deployment
Containerizing applications with Docker, understanding CI/CD pipelines, and deploying scalable backend systems.
Contact
Let’s work together
If you have an internship opportunity, a project idea, or need a reliable collaborator, I would love to hear from you.