Hi, I'm Raja Kumar

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Final-year Computer Science student passionate about building innovative digital solutions, specializing in full-stack development, blockchain technologies, and software engineering.

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About Me

Get to know more about who I am, what I do, and what skills I have

Raja Kumar

I am a passionate software developer with expertise in C++, Python, JavaScript, Solidity, and SQL. Currently pursuing my Bachelor of Technology at Heritage Institute of Technology, I have a strong foundation in full-stack web development and blockchain technology.

In addition, I have earned certifications in Blockchain and Its Applications (NPTEL), Introduction to Cybersecurity (CISCO),and Bitcoin Enterprise (BSV Academy), enhancing my understanding of blockchain security and cryptocurrency technologies.

I am always eager to learn new technologies, solve complex problems, and collaborate with like-minded individuals to build innovative solutions. 🚀.

Final Year CS Student

Heritage Institute of Technology

Coding Experience

1+ Years

Age

22 Years Old

Location

Kolkata, Inida

Technologies I work with

JavaScriptTypeScriptReactNext.jsNode.jsPythonJavaC++SQLMongoDBAWSDockerSolidityGitRustFoundryHardhat

Featured Projects

Here are some of my recent projects that showcase my skills and experience

OneBrain

OneBrain

Full-stack bookmarking application with user authentication, embeedding, and social sharing features. Built with React, Node.js, and MongoDB.

ReactNode.jsMongoDBTypeScriptExpress
GDrive3.0

GDrive3.0

GDrive3.0 is a decentralized file storage application that allows users to upload, share, and manage files securely on the blockchain.

ReactSolidityHardhatIPFSTailwind CSSEthers.js
OptiMedia

OptiMedia

A full-stack cloudinary AI powered image optimization application that allows users to upload images, apply customization and video compression, preview results, and download optimized media.

Next.jsTailwind CSSCloudinary AINode.jsPrismaClerkExpress
Task Management App

Task Management App

TaskFlow is a task management app that helps users organize their tasks efficiently. Features include task creation, deadlines, and progress tracking and recurring tasks.

Next.jsTailwind CSSReduxExpressVercel
Solfinity

Solfinity

Solfinity is a blockchain-based platform where useres can receive Faucet tokens, create and manage tokens and can also create Liquidity pools.

solana-splReactJavascriptRadium-sdknode-poyfil
MegaBlogger

MegaBlogger

A blogging platform with user authentication, post creation, and commenting features. Built with React and Appwrite as backend.

ReactJavaScriptAppwriteTinyMCE

Skills & Technologies

Here are the technologies and tools I work with to bring ideas to life

Frontend

React
90%
Next.js
85%
TypeScript
80%
JavaScript
95%

Backend

Node.js
85%
C++
70%
Python
90%
Java
75%

Database

MongoDB
80%
PostgreSQL
75%

Tools & Others

AWS
70%
Docker
65%
Git
90%
Figma
80%
TensorFlow
75%
Flutter
70%

GitHub Activity

 

Consistent coding activity throughout the year

Experience

My professional journey and the experiences that have shaped my skills

Full-Stack Developer Intern

PearlThoughts

May 2025 - June 2025
Remote
  • Developed and maintened web application using nx monorepo architecture
  • Implemented backend services with NestJS and Prisma ORM
  • Collaborated with frontend team to integrate APIs with Next.js
  • Participated in code reviews and contributed to team knowledge sharing

Full Stack Developer

Sapphire Infocom Pvt. Ltd.

March 2025 - May 2025
Remote
  • Built and maintained a bookmarking application with user authentication and social sharing features
  • Developed RESTful APIs using Node.js and Express
  • Implemented frontend components with React and TypeScript
  • Deployed on vercel for public access

Contributor

Timechain Summer of Code'2024

May 2024 - August 2024
Remote
  • Worked on BSV blockchain projects.
  • Contributed to the development of smart contracts and decentralized applications.
  • Participated on cohort 1 of Timechain Summer of Code.
  • Collaborated with mentors and other contributors to enhance blockchain solutions.

Salesforce Developer Intern

Salesforce

Nov 2023 - Dec 2023
Remote
  • Developed and maintained Salesforce applications using Apex and Visualforce
  • Implemented custom business logic and workflows to enhance CRM functionality
  • Learned Salesforce best practices and participated in code reviews
  • Lightining Web Components development

Get In Touch

I'm always open to discussing new opportunities, interesting projects, or just having a chat about technology

Send me a message

Contact Information

Location

Kolkata, India

Follow Me

Based in Kolkata

Available for remote work and local meetups