Hamza Ahmad, Senior Flutter Developer for iOS, Android and AI Apps

Selected work

Products I built or led, from my own apps to founding-team work. Each one has a full write-up.

Emorya

Live

Health and FinTech app, Feb 2023 to May 2026

A live-to-earn app that turns physical activity into crypto rewards. I led product engineering from MVP to 290,000+ registered users.

290,000+ registered users
MVP to scale-up
iOS and Android

Read the Emorya case study

AlignAgain

Live

AI emotional-wellness app, 2026

My own emotional-wellness product: a Flutter check-in app with AI reflection, a Django API and Next.js web and admin.

8 emotions, 5 intensities
4 AI agents
Urdu and English

Read the AlignAgain case study

GlazeFlow

In production

Ordering app with trade pricing and payments, Jun to Sep 2026

An ordering platform for a UK sealed-unit glass manufacturer: configure a unit, see your trade price, pay online.

Payment integrations via Square
28 Cloud Functions
3 price tiers

Read the GlazeFlow case study

BridgeLinx

Shipped

Freight marketplace, Sep 2020 to Dec 2022

Pakistan's first digital freight marketplace. I joined the founding team and led mobile engineering through a $10M seed round.

$10M seed round
6 Flutter apps and a web portal
Founding team

Read the BridgeLinx case study

More projects

How founders bring me in

Usually for one of three reasons. In each case I own the build myself, from architecture to release.

Build the MVP properly

You have a product to prove. I scope it with you, pick an architecture that won't need rewriting at the first sign of traction, and ship it to the stores.

Scale an app that has outgrown itself

Releases are slow and every change breaks something. I restructure the codebase and the backend behind it while the app keeps shipping.

Take over a hard codebase

The original team has moved on. I get the project building again, write down how it works, and keep releases going.

What I build

Cross-platform Flutter apps for iOS and Android, from MVP to production
AI features with OpenAI and Gemini: chat, generated plans, image and food recognition
Health and fitness apps with Apple HealthKit, Health Connect and Garmin
Backends and APIs on Node.js, Django, GraphQL, Firebase and Google Cloud
Native iOS (Swift) and Android (Kotlin) plugins when Flutter needs them
Payments, subscriptions and in-app purchases
Admin dashboards and web apps in Next.js
CI/CD and App Store and Google Play releases

Experience

Newest first.

2023 to present
Founder and Lead Product Engineer, K-Mavericks
My own small product studio. I build my own apps here and take on a few client builds a year. (Lahore)
- Founded and built AlignAgain, Beardly and UFO Launch end to end
- Architected and led a UK glass manufacturer's ordering platform, since packaged as GlazeFlow
- Own scope, architecture, delivery, CI/CD and production support on every build
Case studies: AlignAgain, GlazeFlow, Beardly, UFO Launch
Feb 2023 to May 2026
Senior Product Engineer, Emorya
A live-to-earn health and FinTech platform that rewards physical activity. (Remote, Romania)
- Led product engineering from MVP to 290,000+ registered users
- Built the Flutter app for iOS and Android and architected the Django and Node.js services
- Integrated Apple HealthKit, Health Connect, Gemini food scanning and MultiversX rewards
Case studies: Emorya
Dec 2022 to present
Independent product engineer, Upwork
Flutter, backend and AI work for clients worldwide. Top Rated, with a 100% Job Success Score. (Remote)
- Collaborated on AI integrations for evyAI's Chrome extension and web app (2025)
- Improved TrueConvos' Flutter meditation player, chat and social flows (2025)
Case studies: evyAI, TrueConvos
Dec 2022 to Feb 2023
Flutter and Android Consultant, MAGIC AI
A smart fitness mirror featured in TIME's Best Inventions 2024. (Remote, London)
- Built Flutter mobile and web features and native Kotlin plugins
- Integrated ML Kit pose detection for form correction and rep counting
Case studies: MAGIC AI
Sep 2020 to Dec 2022
Mobile Engineering Lead, founding team, BridgeLinx
Pakistan's first digital freight marketplace, through a $10M seed round. (Lahore)
- Led mobile engineering across six Flutter apps and a Flutter web portal
- Migrated the backend from Firebase to Node.js and GraphQL
- Set up Fastlane and Bitbucket CI/CD and mentored engineers joining the team
Case studies: BridgeLinx
Jun 2019 to Sep 2020
Founding Engineer, We > I
A venture builder working with startups around the world. (Lahore)
- Built MyRace in Flutter with Garmin Connect and MapBox
- Helped build Treble's React Native communication layer with WebRTC and Jitsi (2019)
- Worked as a junior engineer on We Share Property, a UAE real-estate investment platform (PHP, CodeIgniter, MySQL, Docker)
Case studies: MyRace
Aug 2016 to Oct 2019
Web developer, Independent
PHP, JavaScript, MySQL and WordPress work for clients. (Remote)
- Built Octatude's company website on WordPress (2017)
- Built Kotler Business Program's WordPress store for digital courses (2017)
Feb to Aug 2017
Game Development Intern, DotLinks Technologies
Contributed to Checkpoint mobile games in Unity. (Lahore)

Bachelor's in Computer Science, National University of Computer and Emerging Sciences (FAST-NUCES), 2017.

About me

I'm Hamza, a product engineer in Lahore. I've spent 9+ years shipping software, most of it mobile, and 6+ years of that in Flutter.

I've been on founding teams, led mobile engineering through a $10M seed round, and led product engineering on a health and FinTech app from MVP to 290,000+ registered users. These days I split my time between my own products and building apps for founders who want one engineer accountable for the whole thing.

I work best when I own the outcome: architecture, backend, native integrations, store release and the support after it. You get a test build on your phone every week, and a straight answer when there's a simpler way to reach the goal.

Mobile: Flutter, Dart, iOS, Android, Swift, Kotlin, Riverpod, Bloc, React Native
Backend and data: Node.js, TypeScript, Python, Django REST, GraphQL, Firebase, PostgreSQL, MongoDB, Google Cloud Run
AI and health: OpenAI, Gemini, ML Kit, Apple HealthKit, Health Connect, Garmin SDK
Web and delivery: Next.js, React, Tailwind, Docker, GitHub Actions, Fastlane, Bitbucket Pipelines

Questions founders ask

Before we talk, here are the usual ones.

Do you work as an individual or as an agency?

As an individual. I'm a senior engineer who writes the code myself, and you deal with me directly from scoping through release and support. There's no account manager in between and no hand-off to a junior team.

What technology do you build with?

Flutter and Dart for iOS, Android and web apps, with native Swift and Kotlin when a feature needs it. Backends on Node.js, Django, GraphQL or Firebase, admin dashboards and websites in Next.js, and AI features with OpenAI and Gemini.

Can you take over an existing Flutter app?

Yes. I get the project building again, document how it works, fix what blocks releases, and then keep shipping. I've also restructured apps mid-flight, such as migrating a freight marketplace's backend from Firebase to Node.js and GraphQL while its apps stayed live.

Do you integrate Apple HealthKit, Health Connect and Garmin?

Yes. I shipped Apple HealthKit and Google Health Connect sync in Emorya, a health and FinTech app with 290,000+ registered users, and built a Garmin Connect integration that syncs training runs into MyRace.

Can you add AI features to a mobile app?

Yes. I've built a four-agent OpenAI GPT-4o pipeline for AlignAgain, Gemini food scanning for Emorya, and Gemini image generation with server-side keys and paid credits for Beardly.

How does a project with you start?

Email me what you're building and where it's stuck. I reply with how I'd approach it and what it would take. Once we agree on scope, you get a test build on your own phone every week, so you always see real progress.

Where are you based, and which time zones do you work with?

I'm in Lahore, Pakistan (UTC+5) and work remotely. I've worked with teams and clients in the UK, Romania and the UAE.

Can I hire you through Upwork?

Yes. I'm Top Rated on Upwork with a 100% Job Success Score, and you can hire me there or contract with me directly.

Tell me what you're building and where it's stuck.

I'll reply with how I'd approach it and what it would take. I work remotely from Lahore (PKT, UTC+5) with teams in other time zones.

hamza@kmavericks.com

LinkedIn Hire me on Upwork

Or write a quick brief

I build iOS and Android apps, and everything behind them.