Muhammad Huzaifa

Muhammad Huzaifa

Software Engineer · Mobile, Full-Stack & AI · Karachi

Plan. Build. Ship.

The mobile app, the backend and dashboards behind it, the AI inside it, and the pipeline that gets it into the App Store and Google Play. In 2026: five apps built, four live.

See the work Download CV
Releases · 2026 --:-- PKT
5 apps built4 live in stores3 in review
Apps built in 2026
5
Live store releases
5
Years in production
3+
Hackathon prize, AI track
$15k

Selected work

Five products, end to end.

Real apps with real users and real store reviews. The screens below are captures from the shipped builds.

01 · The Monk Co.

HeadQuarters CRM

Field-service CRM for service crews

  • iOS · Live
  • Android · In review
  • Website · Live

Role Sole engineer: app, website, backend and cloud

  • Offline-first sync. Jobs and photos captured without signal upload later in retry-safe steps, never lost or duplicated.
  • Billing and messaging. Stripe subscriptions, email verification, FCM/APNs push and real-time team chat.
  • Shipped like production. AWS as code (CDK, EC2, S3, SES), GitHub Actions deploys, plus Playwright and Maestro end-to-end tests.
  • React Native
  • Expo
  • Next.js
  • FastAPI
  • PostgreSQL
  • Redis
  • AWS CDK
App Store Website
HeadQuarters CRM home screen

02 · The Monk Co.

Wash42

Truck and car-wash booking & membership

  • iOS · Live
  • Android · Live
  • Web app · Live

Role Apps, admin panel, PWA and most of the backend

  • Payments that don't double-charge. ValorPay with idempotency keys and signed webhooks, plus recurring memberships with prorated upgrades.
  • Tested on purpose. Raised backend coverage to 90% and made CI enforce it.
  • A real PWA. 37 screens at parity with native, offline outbox and Web Push. Lighthouse: PWA 100, accessibility 100.
  • React Native
  • Expo
  • FastAPI
  • Celery
  • React
  • Workbox
  • Azure
App Store Google Play Web app
Wash42 home screen

03 · Rehani Soko

Hani by Rehani

AI property concierge that negotiates rent

  • iOS · Live
  • Android · In review

Role Sole author of the app and the service behind it

  • Finds the home. Searches Rehani and partner portals, merges duplicates by photo hash, re-hunts daily with price-drop alerts.
  • Negotiates for you. Talks to agents over WhatsApp inside the seeker's budget. Claude reads replies; every answer is validated before Hani acts. Try the logic ↓
  • Ships safely. V2 multi-term negotiation behind feature switches, backed by 350+ backend and 400+ mobile tests.
  • React Native
  • Expo
  • Django
  • PostgreSQL
  • Celery
  • Claude API
  • WhatsApp
App Store Website
Hani home screen

04 · The Monk Co.

Dugan Psychiatry

Mental-health care with video visits

  • Android · Live
  • iOS · In review

Role Core features across the app and its API

  • Secure by role. Clerk sign-in across app and API, with onboarding for patients and psychiatrists.
  • Real-time care. Chat with incoming-call handling and WebRTC video visits.
  • Out the door. Stripe appointment payments, and the first Google Play release.
  • React Native
  • Expo
  • NestJS
  • PostgreSQL
  • Socket.IO
  • WebRTC
  • Stripe
Google Play Website
Dugan Psychiatry home screen

05 · Freelance

ProperTkt

Maintenance tickets for small landlords

  • Web & API · Deployed
  • Android · Preview
  • Stores · Upcoming

Role Sole engineer: API, web, admin, mobile and AWS

  • One source of truth. A FastAPI, PostgreSQL and Celery API owns every role, permission and ticket state.
  • One contract, two clients. React dashboard and admin console plus an Expo app, all typed from one OpenAPI document.
  • Cheap and solid. AWS with CDK (EC2, CloudFront, nightly backups) and staging-to-production auto-deploys.
  • FastAPI
  • PostgreSQL
  • Celery
  • React
  • Expo
  • OpenAPI
  • AWS CDK
Website Android APK (preview)
propertkt.com
ProperTkt website homepage

Range

One engineer, every layer.

What I built in each product, layer by layer. Hover a product to light up its column.

Layers built per product. Filled: built it. Half: built with a team. Ring: in progress.
Layer HQ CRM Wash42 Hani Dugan ProperTkt
Mobile app iOS & AndroidBuiltBuiltBuiltTeamBuilt
Web site, app or PWABuiltBuiltTeam–Built
Admin & dashboardsBuiltBuilt–TeamBuilt
API & workersBuiltTeamBuiltTeamBuilt
AI features LLMs, vision––Built––
Cloud & CI/CDBuiltTeamTeam–Built
Store releasesBuiltBuiltBuiltBuiltSoon

Across five products: mobile, web, admin, API, AI, cloud and store releases.

AI engineering

AI that checks its own work.

I don't let a model's answer reach a user, or a merge reach main, unchecked. Two pieces of that, running live in your browser.

Hani · reply reader

What did the agent just say?

Asking KES 170kSeeker's max 160kHani's last offer 140k
  1. Opt-out rules

    STOP always works. A rule decides it, never a model.

  2. Read the intent

    …

  3. Validate the price

    …

  4. Decide

    …

In production, Claude reads the reply first and this rule layer checks its answer. The demo runs the rule layer only, in your browser.

self-healing-rag · CI eval gate

Would this change be allowed to merge?

Hallucination rate4.4%
limit 5%
False answers on unanswerable questions0.0%
limit 10%
Checks passed · merge allowed

60 golden questions, judged by a model from a different provider. Citation accuracy 100%, about $0.0005 per query.

Repository PR #2, blocked Eval dashboard
F1GPT, a Formula One AI chatbot

F1GPT · RAG chatbot · hackathon build

Ask anything about Formula One. It answers from what it has read.

Built for the Co-Creating with GPT-5 hackathon by AI/ML API. It scrapes F1 sources, indexes them in a vector database and streams GPT-5 answers grounded in the closest matches.

  1. ScrapePuppeteer
  2. ChunkLangChain splitter
  3. Embed1536-dim vectors
  4. RetrieveAstra DB, top 10
  5. StreamGPT-5 via AI SDK
  • Next.js 15
  • Vercel AI SDK
  • LangChain
  • Astra DB Vector
  • Puppeteer
  • Docker
Repository
  • Model routing across Anthropic and OpenAI tiers, with per-request cost tracking.
  • Assistants with memory on WhatsApp and web, with Whisper speech-to-text and TTS.
  • Quality gate for AI video: ffmpeg pulls frames, a model scores each clip, and failures regenerate.

Experience

Three years of shipping.

Remote with US, Canadian, Singaporean and UAE teams, and on-site in Karachi.

B.E. Computer Systems
NED University of Engineering & Technology, 2019–2023

  1. Jan 2026 – Present

    The Monk Co.

    Software Engineer · Full-time, hybrid

    HeadQuarters CRM, Wash42 and Dugan Psychiatry: mobile, web, backend, cloud and store releases.

  2. Apr 2023 – Nov 2026

    Rehani Soko

    Software Engineer · Full-time from Nov 2024 · earlier Full Stack Developer and Data Manager (contract)

    Built Hani, the Tangaza ad platform's backend, the LLM layer, an AI-video quality gate, and a pipeline for ~50,000 listings a month.

  3. Jan – Jul 2025

    Agent Arc

    Frontend Lead Developer · Singapore, remote

    Led the frontend of an AI trading terminal on Solana. 3rd prize, AI track, Solana Breakout Hackathon.

  4. Jan 2024 – Dec 2025

    Lovum Group

    Software Engineer · Part-time contract, US

    Next.js frontends and Python APIs for EduEssential and Waridi.

  5. May – Oct 2024

    Algorithm Consulting

    Junior Developer · Karachi

    ASP.NET enterprise modules, query performance and release stability.

  6. Mar – Nov 2023

    CrossWing Inc.

    Full-Stack Developer · Canada, remote

    React web apps for robotics products, alongside the AI/ML team.

  7. Dec 2022 – Jan 2023

    My AskAI

    Backend Developer

    A Node.js validator for an OpenAI training-data API.

  8. May – Aug 2022

    Profecia Links

    Software Engineer

    Automated web data extraction.

Recommendations

From people I've worked with.

“Huzaifa has been an invaluable part of our team, building Rehani, EduEssentials, and Waridi from the ground up. He’s skilled on both the front end and back end, incredibly quick with fixes, and always responsive no matter the hour.”
Victoria MugelaCEO, Lovum Group · COO, Rehani Soko
“Our training program typically spans 3 months, but he was able to complete it in just a month and jump straight into active product development… He’s reliable, quick to pick things up, and has a bright future ahead.”
Waqar RazzaqManaged me at Algorithm Consulting
“I’ve worked with Huzaifa for a few years on various projects. Excellent work ethic and talent. He is a full stack engineer with great front end design work!”
David Z MugelaDirector & Actuary, Guardian Life
“Muhammad consistently exhibited meticulous attention to detail, ensuring the utmost accuracy and reliability of the collected data… exceptional work ethic, exemplary problem-solving abilities, and superb communication skills.”
Owais AhmedPhD Student, Kennesaw State University

From my LinkedIn recommendations, quoted as written.

Beyond client work

Prizes, papers & writing.

$15,000 3rd Prize, AI Track · Solana Breakout Hackathon Agent Arc, from 8,300+ global submissions. I led the frontend. Project on Colosseum Winners announcement

Papers

An Integrated Approach to Robotic Object Grasping and ManipulationarXiv:2411.13205 · co-author Smart Shelf Advertising using Real-Time Product Segmentation on Low-Cost Edge DevicesPreprint, 2025 · co-author

Writing

Building Agent Arc: a trustless AI trading terminal on SolanaMedium How I automated data collection across global real-estate marketsMedium Teaching robots to grasp: 6D pose estimationMedium

Contact

Have a product to build?
Let’s ship the next one.

Open to Software Engineer, Full-Stack, Mobile and AI Engineer roles, and to contract work. Remote or Karachi.

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Portrait of Muhammad Huzaifa
Muhammad Huzaifa · Karachi, PK