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Muhammad Hamza - Full Stack & React Native Developer

Open to work · Faisalabad, Pakistan

I turn ideasinto appspeople use.

I'm Muhammad Hamza, a full stack developer working with React, React Native, TypeScript and Node.js. I've shipped client apps to the Play Store and App Store, built AI features for SaaS products, and I build my own tools on the side.

See my work Download CV
shipping production web and mobile apps
3 years
shipping production web and mobile apps
client products shipped to web, Google Play and the App Store
8+
client products shipped to web, Google Play and the App Store
Excellence Award at TechloSet Solutions
2025
Excellence Award at TechloSet Solutions
  • React
  • React Native
  • TypeScript
  • Next.js
  • Node.js
  • FastAPI
  • PostgreSQL
  • MongoDB
  • Socket.IO
  • Redis
  • Claude API
  • Gemini
  • pgvector
  • MediaPipe
  • Docker

My products

Things I build for myself

My own ideas, designed and built end to end: from the system design to the store listing.

  1. 01Live on npm

    rn-size-check

    Open-source CLI and web app

    Find out why your React Native app is big, and how to shrink it. Drop in an Android .aab or .apk and get a ranked list of fixes with the MB each one saves, or compare two builds to see what grew.

    npm downloads in the first two weeks
    1,000+
    npm downloads in the first two weeks
    releases, v0.1 to v0.3
    7
    releases, v0.1 to v0.3
    checks made for React Native
    15
    checks made for React Native
    Case study: rn-size-checkTry it in the browser npm
    Sample report on the live website, and the compare command in the terminal
  2. 02In development

    PhysioCoach AI

    AI physiotherapy coaching platform

    Patients exercise in front of their phone camera and get real-time feedback on every rep. Physiotherapists build programs, track compliance and get alerted when a patient reports pain.

    • React Native
    • Next.js
    • FastAPI
    • PostgreSQL
    • MediaPipe
    • Groq
    Case study: PhysioCoach AI
    Patient app: home, live exercise with pose tracking, session summary
  3. 03In development

    FabricFast

    B2B textile marketplace

    Mills list their fabric; buyers search, order, chat with sellers and watch fabric videos. One TypeScript monorepo for web, mobile, admin and API.

    • Next.js
    • Expo
    • NestJS
    • PostgreSQL
    • Prisma
    • Redis
    Case study: FabricFast
    The FabricFast monorepo: refresh-token rotation with reuse detection in the NestJS API

Client work

Shipped for clients at work

Built for clients, so I describe the products instead of naming them. Results and my part in each are real.

Gaming

Real-time multiplayer board game

A real-time multiplayer board game with a real-money economy: a React Native app, a Node.js and Socket.IO game server, and a React admin panel that runs the whole economy.

My part: Full stack in a team: main developer on the mobile app, plus game server, admin panel and deployment

  • React Native
  • TypeScript
  • Redux Toolkit
  • Zustand
  • Node.js
  • Express
  • Socket.IO
  • MongoDB
Read the case study Pre-launch
players playing at the same time on one server, with zero errors
300
players playing at the same time on one server, with zero errors
2P, 4P, 2v2 team, private and friend tables, 3 rule variants
5 modes
2P, 4P, 2v2 team, private and friend tables, 3 rule variants
Android APK size, 143.7 MB → 49.4 MB
−66%
Android APK size, 143.7 MB → 49.4 MB
Retail

Secure retail fulfilment apps

Two production React Native apps for a platform that keeps high-value products in smart locked enclosures in stores: a Business app for retailers and sales teams, and a Consumer app for shoppers and investors.

across two production apps, Business and Consumer
84 screens
across two production apps, Business and Consumer
chat, request status and badges over Socket.IO and FCM
Live
chat, request status and badges over Socket.IO and FCM

React Native · TypeScript · Redux Toolkit · React Navigation · Socket.IO

Live on Google Play
Business app home, AI assistant and Consumer store map
Local deals

Location-based deals app

Customers see nearby cafés and shops with live coupons on a map, claim one as a QR code tied to their location, and merchants scan it at the counter to redeem.

React Native · TypeScript · Redux Toolkit · Firebase · Google Maps

Live on the App Store
Deals app: live deals map, store page with coupons, and a QR coupon
  • Also shipped

    Mobile app rebuild

    Rebuilt a client's app with Google and Facebook sign-in, and handled both store releases.

    Live on App Store & Google Play

AI in production

AI that ships, not demos

These run inside real products, with tests and monitoring around them.

  1. 01

    LLM chat assistants

    B2B sales platform · retail operations app

    Chat assistants inside B2B products, and an AI operations assistant for retail fulfilment.

    Claude · Gemini · Prompt engineering

  2. 02

    AI scoring and valuation

    Real-estate SaaS · sales platform

    Grades every real-estate deal A to D with a written reason. Lead scoring and AI email subject lines for sales teams.

    Claude API · Node.js · PostgreSQL

  3. 03

    Image embeddings and vector search

    Hairstyle marketplace

    Turns a hairstyle photo into an embedding and ranks nearby stylists whose work looks most similar.

    Gemini · pgvector · FastAPI

  4. 04

    On-device pose estimation

    PhysioCoach AI

    Counts reps and scores form on the phone in real time, then speaks LLM-written corrections.

    MediaPipe · Groq Llama 3.1 · Whisper

Journey

How I got here

From bootcamp trainee to junior developer in two years, shipping something at every step.

  1. 2020 – 2024

    BS Software Engineering

    University of Agriculture, Faisalabad

    Degree, alongside everything below.

  2. 2023

    Web and Mobile App Development certificate

    Saylani Mass IT Training Program

    One-year program: MERN, React Native and Firebase.

  3. Jan – Apr 2024

    Bootcamp trainee

    TechloSet Solutions

    Company bootcamp that led to the internship below.

  4. May – Jul 2024

    Software Development Intern

    TechloSet Solutions

    Full-stack features with React.js, Node.js, Firebase and Prisma, from data model to UI.

  5. Aug – Dec 2024

    Trainee Software Developer

    TechloSet Solutions

    Built and released two React Native apps, one taken from scratch to both stores, and rebuilt a client's mobile app.

  6. Jan 2025 – Present

    Junior Software Developer

    TechloSet Solutions

    Two production AI SaaS platforms. Shipped chat assistants, lead scoring and AI deal valuation.

    Excellence Award 2025

  7. Feb – Sep 2026

    Full Stack Developer (part-time, remote)

    Quest Info Hub

    A real-time multiplayer game: mobile app, Socket.IO server and admin panel. Owned production deployment and CI/CD.

  8. Oct 2026

    Open source

    rn-size-check

    Published rn-size-check, a size analyzer for React Native apps: 7 releases and 1,000+ npm downloads in two weeks. A GitHub Action and iOS support are in review.

Toolkit

What I build with

Languages
TypeScriptJavaScriptPythonSQLHTMLCSS
Frontend
React.jsNext.jsViteRedux ToolkitZustandTailwind CSSMaterial UIshadcn/uiEChartsRecharts
Mobile
React NativeExpoReact NavigationReanimatedFirebase Auth & FCMGoogle MapsDeep linkingRevenueCatStore releases
Backend
Node.jsExpress.jsNestJSFastAPIREST APIsSocket.IOJWT & OAuthRBACBullMQ
Databases
PostgreSQLPrismaSQLAlchemyMongoDBRedispgvectorFirestore
AI
ClaudeGeminiGroq LlamaChat assistantsPrompt engineeringEmbeddingsVector searchMediaPipeWhisper
DevOps
GitGitHub ActionsDockerNginxPM2Linux VPSVercelAWS S3CypressDatadog

Contact

Have an idea? Let's ship it.

You'll talk to me directly.No agency, no middleman.

hafizhamza2247@gmail.com

Open to full-time roles, remote or in Pakistan, and to freelance web and mobile projects.