Undergraduate @ IIT Bhilai | CSE 2027

ROSHAN RAJ

Full-Stack Developer • Systems & Compilers Engineer • ML Researcher

500+
CP Solved
2 Live
Web Apps
S3 Labs
ML Intern
zsh -- roshan@iitbhilai:~
ACTIVE SESSION
⚡ Initializing Roshan Raj Cyber-IDE v2026.07...
✔ Student CSE @ IIT Bhilai (B.Tech Expected May 2027)
✔ Solved 500+ CP Problems (LeetCode / Codeforces)
✔ Summer Research Intern @ S3 Summer Labs (Signal Analytics & ML)
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Technical Domain Matrix

Capabilities & Stack.

Bridging core computer science fundamentals with high-performance web systems and machine learning analytics.

Production Systems

Full-Stack & Real-Time Web

Architecting end-to-end web applications with modern frontend frameworks, scalable API servers, relational databases, and WebSocket state synchronization.

Core Technologies
React.js & Next.js
Advanced
Node.js & Express.js
Advanced
TypeScript & JavaScript
Advanced
PostgreSQL & Drizzle ORM
Proficient
Socket.IO & Real-Time Events
Proficient
Tailwind CSS & Responsive UI
Advanced
Low-Level Engine

Systems, Compilers & WebAssembly

Designing custom programming language pipelines (lexers, parsers, semantic analyzers, bytecode VMs) in C++ and compiling to WebAssembly for native-speed in-browser execution.

Core Technologies
C++ & C Memory Mgmt
Advanced
WebAssembly & Emscripten
Proficient
Lexer & AST Parser Design
Proficient
Bytecode VM Execution
Proficient
Monaco Editor Integration
Proficient
Linux System Programming
Proficient
Intelligence & Research

ML & Signal Analytics

Extracting PPG physiological signals from optical video data and training ML regression models validated against clinical reference measurements for embedded real-time deployment.

Core Technologies
Python & Scikit-learn
Advanced
OpenCV Optical Analytics
Proficient
PPG Signal Processing
Proficient
NumPy & Pandas Processing
Advanced
Machine Learning Regression
Proficient
SHAP & Model Interpretability
Proficient
Infrastructure & CP

DevOps & Tooling

Solving 500+ competitive programming challenges with high algorithmic efficiency while maintaining clean CI/CD deployment pipelines on cloud platforms.

Core Technologies
Git & GitHub Workflows
Advanced
Docker & Containerization
Proficient
Vercel & Render Cloud
Advanced
Algorithms (DSA & Trees)
500+ Solved
LeetCode & Codeforces
Top Tier
REST API Schema Design
Advanced
experience.log

Work Experience.

Research internships, full-stack web engineering, and student mentorship track records.

[RESEARCH & EMBEDDED ML]

Summer Research Intern

S3 Summer Labs, IIT Bhilai
Jun 2026 – Aug 2026
  • Developed a non-invasive hemoglobin estimation system using fingertip videos captured under controlled multi-wavelength LED illumination.
  • Implemented signal processing pipelines covering ROI extraction, noise reduction, PPG signal normalization, and feature extraction from optical video data.
  • Trained and validated machine learning regression models against clinical reference measurements, optimizing for real-time embedded deployment.
PythonScikit-learnOpenCVSignal ProcessingPPG AnalyticsEmbedded ML
[FULL-STACK WEB]

Web Developer

Meru Conference, IIT Bhilai
May 2025 – Jul 2025
  • Led end-to-end web development of the Meru Conference 2026 platform, serving as the central hub for attendee registrations, schedules, and speaker profiles.
  • Collaborated cross-functionally with design and organizing teams to deliver features on tight deadlines.
React.jsJavaScriptHTML5/CSS3REST APIsTailwind CSS
[MENTORSHIP & LEADERSHIP]

Polestar Mentor

Openlink Foundation
2024 – 2026
  • Mentored 15+ students in academic planning, competitive exam strategy, and structured goal-setting.
  • Designed personalized learning roadmaps and conducted regular feedback sessions to monitor student progress.
MentorshipRoadmap DesignAcademic StrategyLeadership
IDE Workspace

Selected Projects.

Interactive IDE view with code snippets, architecture highlights, and direct live links.

projects/
Full-Stack & Socket.IO Real-Time

AlgoRace -- Real-Time Competitive Coding Platform

Architected and deployed a full-stack competitive coding platform with protected JWT authentication, practice modes, ELO leaderboards, and live match updates. Engineered the production API with Express.js, PostgreSQL (Drizzle ORM), and Socket.IO for sub-second real-time race state synchronization.

ReactTypeScriptExpress.jsPostgreSQLSocket.IODrizzle ORMJWTTailwind CSS
algorace_realtime.ts
CODE PREVIEW
// Socket.IO Match Synchronization Handler
io.on('connection', (socket) => {
  socket.on('join_race', async ({ matchId, userId }) => {
    const session = await drizzle.query.matches.findFirst({ where: eq(matches.id, matchId) });
    socket.join(`race:${matchId}`);
    io.to(`race:${matchId}`).emit('player_joined', { userId, status: 'READY' });
  });

  socket.on('submit_code', async ({ matchId, testPassRatio }) => {
    if (testPassRatio === 1.0) {
      io.to(`race:${matchId}`).emit('race_winner', { winnerId: socket.userId });
    }
  });
});
academics.cpp

Education & Honors.

IIT Bhilai CSE undergraduate coursework & verified competitive programming honors.

Expected May 2027

IIT Bhilai

Bachelor of Technology in Computer Science & Engineering
CS Core Coursework
Data Structures & AlgorithmsOperating SystemsComputer NetworksDBMSMachine LearningProbability & StatisticsLinear AlgebraDiscrete Mathematics

Competitive Programming

LeetCode & Codeforces

Solved 500+ problems across medium--hard difficulty. Strong foundation in arrays, strings, graph algorithms, dynamic programming, and trees.

Ramanujan Mathematics Olympiad 2023

Patna District, Bihar

Secured 2nd Rank in Patna District in the state-level Ramanujan Mathematics Olympiad held across Bihar.

Get In Touch

Let's Connect.

Interested in full-stack development, compilers, or ML research? Reach out for placement opportunities, project collaborations, or tech discussions.

Designed & Engineered by Roshan Raj © 2026. IIT Bhilai.