App LogoApp name
RK

Rajan Kumar

Open to work0 years experience

Full Stack Developer

Lakhisarai, BiharTarget Roles: Backend Engineer • Full-Stack Developer • Frontend Specialist

Full Stack Developer with hands-on experience in building MERN stack applications.

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Email

Standing Rank

Rank Not Available

Developer Badges

Badges Pending

Skills & Technologies

23 skills
cc++javascripttypescriptreact.jshtml5css3tailwind cssrechartsnode.jsexpress.jsrest apissocket.iomongodbmongodb atlassqlgitgithubpostmanvercelrendergroq apigemini api

Work Experience

Full Stack Developer Intern

Magorix

Jun 2025 - Jul 2025 Remote
  • Contributed to “AI for Kids (Grades 5–10)”, an interactive learning platform that teaches AI concepts through games.
  • Implemented a real-time notification system using Socket.IO, reducing update latency and improving user engagement.
  • Developed a real-time leaderboard to track and display rankings for 20+ students.
  • Improved responsiveness across devices with Tailwind CSS for better user experience.
  • Built a profile section for personalized progress tracking and user details.
  • Tech Stack: React.js, Node.js, Express, Socket.IO, MongoDB, Tailwind CSS, Git

Projects

ExpenseAI – AI-Powered Personal Finance Management Platform

React.jsNode.jsExpress.jsMongoDBSocket.ioGroq Llama 3.3JWTTailwind CSS
  • Developed a full-stack MERN expense tracker with JWT authentication, real-time Socket.io budget alerts (80%, 95%, 100%), and automated Nodemailer email reports
  • Integrated Groq Llama 3.3 API to parse plain-English inputs like ”Paid 300 for pizza” and automatically detect the amount and category
  • Created an AI Insights dashboard showing a Financial Health Score (0–100), category-wise spending predictions, and next-month forecasts
  • Added two-factor authentication (2FA) using TOTP with QR-code setup for Google and Microsoft Authenticator

TaskManager – Real-Time Collaborative Task Management Platform

React.jsTypeScriptNode.jsExpress.jsMongoDBSocket.ioJWTTailwind CSS
  • Built a full-stack MERN task management app with JWT authentication using HttpOnly cookies for XSS protection
  • Implemented real-time task updates and instant notifications using Socket.io with room-based user sessions
  • Designed role-based access control so only task creators can delete tasks, with priority levels and status tracking

Leaderboard Standings

Leaderboard Position Pending

Global test scores, peer standing percentiles, and algorithm leaderboard ranks are updated dynamically.

Assessment Highlights

Assessments Not Completed

Coding evaluations, system assessment results, and conceptual score badges will appear here after taking a test.

AI Collaboration Score

AI Collaboration Score Pending

Developer coding behavior, assistant cooperation, and AI pair-programming indicators are evaluated during live coding sessions.

Role Compatibility Profile

Role Compatibility Analysis Pending

Custom matching reports, candidate role compatibility percentiles, and core engineer strength profiles are processed once conceptual code screenings are complete.

Achievements

DSA Problem Solving

Solved 100+ DSA problems on LeetCode and GeeksforGeeks.

Academic Rank

Secured 3rd rank in the final year of Diploma among the department students.

About Details

Professional Bio

Full Stack Developer with hands-on experience in building MERN stack applications. Skilled in React.js, Node.js, MongoDB, and real-time features using Socket.IO. Developed AI-powered and full-stack web applications with a focus on scalability, performance, and user experience.

B.Tech in Computer Science & Engineering in Computer Science & Engineering

Galgotias University (2023 - 2026)

Diploma in Computer Science Engineering in Computer Science Engineering

Government Polytechnic Barauni (2020 - 2023)

Languages: English, Hindi
Email: Locked