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Mayank Raj

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Mayank Raj - Full Stack Developer

About Me

Passionate about building digital experiences that make a difference

I am a Full Stack Web Developer and Data Scientist based in Dehradun, Uttarakhand. I specialize in building secure, scalable web applications using React.js and FastAPI, while leveraging data science techniques like Monte Carlo simulations to solve complex problems.


My expertise spans across MongoDB database management, JWT-based authentication, and advanced data visualization using Power BI and Tableau. I am passionate about creating modular architectures and interactive UIs that drive informed decision-making.

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CGPA (B.Tech CS)

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LeetCode Solved

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Days GFG Streak

Technical Skills

Technologies and tools I use to bring ideas to life

Frontend

  • React.js, JavaScript (ES6+)
  • HTML5, CSS3
  • Tailwind, Bootstrap
  • Responsive Web Design

Backend

  • Node.js, Express.js
  • FastAPI, RESTful APIs
  • JWT, OAuth 2.0, Firebase
  • Microservices Architecture

Data Science

  • Python (Pandas, NumPy, SciPy)
  • Data Visualization (Power BI, Tableau)
  • Matplotlib, Seaborn
  • Statistical Analysis & EDA

Tools & Databases

  • MongoDB, MySQL
  • Git, GitHub, VS Code
  • Docker, AWS, Google Cloud
  • Postman, Jupyter Notebook

Work Experience

My professional journey and contributions

Nov 2025 - Jan 2026

Full Stack Developer & Data Analyst

Infosys Springboard — Internship

  • Built a full-stack crypto portfolio manager using FastAPI, React, MongoDB, and JWT security.
  • Implemented parallel Monte Carlo simulations to generate optimal portfolios using the Sharpe Ratio.
  • Designed real-time risk monitoring with automated alerts for high-risk assets.
  • Added stress-testing modes (Safe, Balanced, Risk) for dynamic portfolio rebalancing.

Featured Projects

Some of my recent work that I'm proud of

Crypto Portfolio Manager

FastAPI React MongoDB

A secure full-stack manager with real-time data tracking. Optimized portfolio allocation using Monte Carlo simulations and Sharpe Ratio.

Resume Screening System

React Node.js OAuth

A job matching system with Google OAuth and role-based access. Implemented AI-based applicant scoring to reduce hiring bias.

RPS Graph Edition

JavaScript Graph Theory AI

Rock-Paper-Scissors game using Directed Graphs for rules. Developed a Frequency Tree-based AI to learn player patterns.

Cyber Process Visualizer

JavaScript (OOP) HTML5 CSS3

Interactive visualizer for Stack (LIFO) and Queue (FIFO) operations. Simulates push, pop, enqueue, and dequeue in real-time.

My Certifications

Professional certifications and achievements

Professional Certifications

  • Frontend Development — Udemy
  • React.js & Node.js — HackerRank
  • Python for Data Science — NPTEL
  • Database Certification — Infosys Springboard

Achievements

  • 300+ Problems — LeetCode
  • 160+ Day Streak — GeeksForGeeks
  • 9.89 CGPA — B.Tech Computer Science
  • 5★ HackerRank — Problem Solving

Get In Touch

I'm currently open to opportunities in Full Stack Development and Data Science