Santanu Dutta

Software Developer

Bankura, West Bengal, India

he/him

I build interactive web apps with TypeScript, React React, Next.js Next.js, and Tailwind CSS. For mobile, I use Expo Expo, React Native, and Swift Swift. Backend and data live in Supabase and PostgreSQL. I also integrate agentic AI with LangChain and LangGraph. Read more

Tech Stack

Butter•San Francisco • Remote

Jul 2026 - Present

BuildMVPFast•Dubai • Remote

May 2026 - Jul 2026

Continued as a contract developer on BuildMVPFast client products across web and mobile.
Shipped new features and fixes in React Native (Expo), Next.js, and Supabase-backed services.

BuildMVPFast•Dubai • Remote

Apr 2025 - Feb 2026

Developed an iOS app blocking system in React Native (Expo) with user-selected unlock durations and automatic relocking via Device Activity Monitor, Shield Configuration, and Shield Action Extensions.
Built a timezone-aware recurring notification system using Supabase Edge Functions, cron jobs, and Expo Push Notification Service.
Shipped an AI automation pipeline where admins upload promotional PDFs, extract images with pdfjs-dist, and run OpenAI OCR to generate structured promotion entries.
Implemented mood-adaptive AI voice interactions with the OpenAI Realtime API and ElevenLabs for natural speech synthesis.
Built a real-time chat system with messaging, emoji reactions, thread replies, and moderation (ban) across mobile and web.
Developed a mapping flow for GPX uploads and Google Maps links with coordinate extraction and Mapbox rendering.

Dec 2024 - Mar 2025

Developed scalable web applications with TypeScript, React, and Node.js with a focus on performance and maintainability.
Implemented role-based authentication and document management using Prisma and PostgreSQL.
Optimized backend query performance with Prisma ORM.
Built an employee verification system for selfie-based attendance managed by supervisors.
Designed and developed a responsive CMS-integrated website for IQMG-Global using Tailwind CSS, React, and TypeScript.