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HavenLeno22/README.md

Haven Leno J, full-stack developer. MERN Stack Intern at GenLab, 2026. Hackathon winner at Sensora 2.0, VIT Vellore. Open to internships.

I'm a third-year B.Tech Computer Science and Engineering student at SRM Institute of Science and Technology, Chennai. I build web apps end to end, from the database and API to the interface, mostly with React, Node.js and Spring Boot.

  • Internship: MERN Stack Developer Intern at GenLab, June to August 2026
  • Hackathon: Winner, Implementation Category at Sensora 2.0, graVITas '26, VIT Vellore, with SurgeGuard
  • Now: looking for software engineering internships

See my portfolio

Featured projects

SurgeGuard landing page

SurgeGuard

Real-time crowd safety. Tracks people in camera feeds and scores crowd stability from 0 to 100, with alerts for security staff and an Arduino alarm.

Python, YOLO, FastAPI, WebSockets, React, Arduino
Winner, Sensora 2.0. Case study 		RepX home screen

RepX

Live 1v1 fitness battles. Pose estimation in the browser counts only valid reps, and results move your ELO rating like chess.

React, TypeScript, NestJS, Socket.IO, Prisma, MediaPipe
Case study 		The translator converting text into Morse code

Multi-Mode AI Translator

Translation between 21 languages with the Gemini API, Morse code with a tap pad, and voice input.

Python, Flask, Gemini API, Web Speech API
Team project. Case study

More projects

Project What it does Built with
Anatomix AI (live) 3D anatomy learning: organs, body systems, diseases and quizzes (work in progress) React, Three.js
HealthSys EMR (live) Hospital records prototype: patient charts, documents and scheduling (course project) HTML, Tailwind CSS, JavaScript
AgriTrace Farm-to-fork supply-chain tracker, from the Hack To The Future hackathon Node.js, Express, Gemini API
StaffSync Employee-management dashboard with roles, charts and an audit log Firebase, Chart.js, Tailwind CSS
Student Expense Tracker Income and spending by category with a running balance React, Firebase

Stack

Main: React, Node.js, Express, MongoDB, Java, Spring Boot
Also used: Python, FastAPI, Flask, TypeScript, Firebase, Tailwind CSS, WebSockets, Gemini API

Contact

Portfolio · LinkedIn · Email · LeetCode · Resume (PDF)

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  1. multi-mode-ai-translator multi-mode-ai-translator Public

    Translate languages with the Gemini API, or encode and decode Morse code with a tap pad. Voice input and text-to-speech. Flask + Tailwind CSS.

    HTML 2 2

  2. surgeguard-crowd-safety surgeguard-crowd-safety Public

    Real-time crowd-safety platform: YOLO + ByteTrack tracking, an explainable Crowd Stability Index, a FastAPI + WebSockets backend, a React command center and Arduino alerts.

    Python 1

  3. agritrace agritrace Public

    Farm-to-fork supply-chain tracker with portals for farmers, partners and consumers, and an Express backend with a Gemini assistant.

    HTML

  4. anatomix-ai anatomix-ai Public

    Interactive 3D anatomy learning app: explore organs and body systems, diseases and quizzes. React + react-three-fiber. Work in progress.

    JavaScript

  5. HavenLeno22.github.io HavenLeno22.github.io Public

    Portfolio of Haven Leno J, full-stack developer in Chennai.

    JavaScript

  6. RepX RepX Public

    Live 1v1 fitness competitions: in-browser pose estimation counts valid reps, wins move your ELO. React, Node.js, Socket.IO, Prisma.

    TypeScript