Full Stack Developer

# Zubair Hussain — Full-Stack Developer > Full-stack developer based in Hyderabad, Pakistan, and co-founder of Xovato Digital Agency. Builds web and mobile applications for clients in the US and Australia, with a focus on AI integration, real-time systems, and cross-platform mobile development. Primary stack: Next.js, React, React Native, Expo, Node.js, TypeScript, Python and FastAPI. Available for freelance and contract work on SaaS products, AI-integrated applications, and cross-platform mobile builds. ## Project write-ups - [Building PrivacyVault: a cross-platform privacy SaaS](https://zubair-xovato.blogspot.com/2026/03/building-privacyvault-cross-platform.html): Build write-up for a privacy-first SaaS with a Next.js 15 web dashboard and an Expo React Native mobile app sharing auth logic and theming. Covers tracker scanning, a client-side data locker, breach notifications against public APIs, and the decision to mirror Next.js App Router structure with Expo Router. Hon...

Language English اردو العربية Deutsch Français Español 中文 ◐ Dark mode Most privacy tools solve one piece of the problem. Password managers do not scan app permissions. VPNs do not tell you when your email shows up in a breach. So I built PrivacyVault , a full-stack SaaS that does all three in one place: scans for trackers, stores sensitive data, and alerts you to breaches. It runs as a Next.js web dashboard and an Expo React Native mobile app that share auth logic and theming. This is the full write-up, from the idea through to a working MVP. Published March 2026. Updated September 2026. The problem I wanted to solve Three things happen to the average person's data every day, and almost nobody has visibility into any of them: Installed apps hold permissions for location, microphone, and conta...