Jeffin Jose
Senior Full Stack Engineer
I build web and mobile products end to end with TypeScript, Next.js, React Native, NestJS and Python. 10 years across SaaS, fintech, esports and security, usually working directly with founders.

Personal Projects

Side projects and products I've built outside of professional work.

  1. Ownerwise – Rental Management Platform (2026)

    Full stack · ownerwise.in

    A platform that helps property owners in India rent to tenants safely, from invite to signed agreement. Owners and tenants can use it through WhatsApp, a web app or a mobile app.
    Includes tenant screening and ID checks (KYC), e-signed rental agreements with e-stamp, Razorpay payments for fees, deposits and rent, and maintenance requests, notices and property inspections.
    NestJS backend with Bull queues for reminders and background jobs, an Expo mobile app, a Next.js web app, and a Next.js and Payload CMS marketing site, deployed on DigitalOcean with Docker and GitHub Actions.
    • TypeScript
    • NestJS
    • PostgreSQL
    • Drizzle ORM
    • Redis
    • Bull
    • Next.js
    • React Native
    • Expo
    • NativeWind
    • React Query
    • Zustand
    • Payload CMS
    • WhatsApp Cloud API
    • Razorpay
    • AWS S3
    • Docker

  2. AI Icon Generator

    Frontend

    A unified platform that streamlines AI-powered creative tools for digital content creation. The flagship feature offers text-to-image generation, allowing users to transform their ideas into visual assets.
    Users can organize their generated assets in projects and access them from a centralized dashboard. Built with a credit-based system with Stripe, users can flexibly allocate resources across different tools within the platform.
    The modular architecture supports continuous integration of new AI-powered features, making it a growing ecosystem for creative professionals and enthusiasts.
    • Next.js
    • DALL·E
    • Replicate
    • Hugging Face
    • Drizzle ORM
    • Stripe
    • Tailwind CSS
    • React Server Components
    • Server Actions
    • React Query
    • React Hook Form
    • Zod
    • shadcn/ui
    • Vercel

  3. Crest – Your Global Profile

    Web app

    This project is a personal profile website built with Next.js, showcasing a collection of social media links and contact information. It provides a clean and user-friendly interface for visitors to explore and connect with the site owner.
    • Next.js
    • Tailwind CSS
    • React Query
    • React Hook Form

  4. Crest – Auth System (Backend)

    Backend

    This project is a robust authentication system built with NestJS, implementing JWT (JSON Web Token) authentication using Passport.js and Role-Based Access Control (RBAC). It provides a secure and scalable foundation for building authenticated and authorized API endpoints.
    • NestJS
    • TypeScript
    • Passport.js
    • JWT

  5. OpenAI Chatbot with Next.js

    Frontend · github.com/JeffinJ/openai-chat-client

    This project is a chatbot built with OpenAI's GPT-3 API and Next.js. It provides a conversational interface for users to interact with the AI model and generate human-like responses.
    • Next.js
    • OpenAI API
    • Tailwind CSS

  6. Punchbot Discord Bot

    Discord bot · github.com/JeffinJ/punchbot-discordbot

    This project is a Discord bot built with Discord.js that provides a suite of moderation and utility commands for Discord servers. It is designed to help server admins manage their communities and automate common tasks.
    • Discord.js
    • Node.js
    • TypeScript