About
Full-Stack Developer working in the JavaScript / MERN ecosystem — building web applications, backend systems, real-time features and AI-powered tools.
Profile
I'm Saifullah Siddiqui, a full-stack developer focused on building practical web applications, backend systems, real-time features and AI-powered tools. I work primarily with the JavaScript / MERN ecosystem — React, Node.js, Express and MongoDB — and use Java for data structures, algorithms and problem solving.
My interest is in the whole path from an idea to a deployed, maintainable product: designing the data model, building the API, handling authentication and real-time state, and shipping a frontend that is fast and accessible.
What I'm Building
- Aivex — an AI-powered browser-based development platform on a MERN architecture, with real-time collaboration (Socket.io), in-browser execution (WebContainers), Redis-backed JWT authentication and a Google Gemini AI assistant. Read the case study.
- Grawity — an education-technology initiative focused on practical computer education and digital learning. grawity.in.
- GIMS — the Grawity Institute Management System, a live Grawity product for everyday institute operations. gims.grawity.in.
Grawity and GIMS are separate properties, linked here for reference.
Engineering Focus
Full-Stack Web
React, Node.js, Express, MongoDB, REST APIs
Backend & Systems
Authentication, JWT, Redis, WebSockets / Socket.io, service architecture
AI & Developer Tools
Gemini API, AI-assisted development, WebContainers
Frontend
HTML, CSS, JavaScript, React, Tailwind
Problem Solving
Java, Data Structures & Algorithms
Tools & Deployment
Git, GitHub, Postman, Vercel, Render, Linux
Selected Work
- Aivex — AI-powered browser-based development platform (MERN, Socket.io, WebContainers, Redis, Gemini).
- Ventara — full-stack accommodation platform with Passport.js auth, Cloudinary uploads, Joi validation and Mapbox integration.
- Weather Now — React SPA with geolocation and chained geocoding + weather API requests.
- University Finder — API-driven university search.
- See all projects →
Education
Bachelor of Computer Applications (BCA), Jamia Hamdard, Delhi, India. Alongside coursework I focus on data structures and algorithms in Java and on building and deploying full-stack applications.
Contact
Have a project, role, or engineering opportunity? Let's talk.