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Job Success
About Hamza
Hamza Kaleem
Senior Mobile / Full-Stack Developer · Founder, Animmza
I take the first call on every project and write the code on most of them. That is the whole pitch for a studio this size: there is no account manager between you and the person whose hands are on the keyboard.
Numbers you can open in another tab
Attributed by platform, never merged into one figure — the Fiverr volume and the Upwork volume are different stories and blending them would flatter one of them. More than twenty apps I have built are live in the App Store; most were published under clients' own developer accounts, so they do not all appear under mine.
What I am good at, and what I am not
The moat is GPS, fleet and field-service software. Live tracking, route replay, telematics, technician apps, dispatch — that is where the shipped work is, and it is narrow enough that I am usually the obvious specialist rather than one more generalist who does everything.
Around it sits the ordinary product work that pays the bills and keeps the skills sharp: Flutter and React Native builds, custom ERP and internal tools, AI agents inside real systems, and rescuing app builds that stalled.
What I will not do is claim ground my work does not cover. I have built an AI wellness app; that does not make me a clinical or HIPAA engineer, and I will say so rather than win the job and learn it on your budget. If your project is outside the list, you will hear that on the first call.
- Role
- Senior Mobile / Full-Stack Developer
- Based in
- Okara, Punjab, Pakistan
- Working hours
- 8am – 12pm US Eastern
- Typical reply
- within ~2 hours
What I actually build with
- Mobile
- Flutter, Dart, React Native, FlutterFlow
- Back end
- Node.js, PostgreSQL, Firebase, Supabase
- Tracking
- Traccar, GPS hardware integration, telematics feeds
- Ships to
- iOS App Store, Google Play, web admin panels
Six places to check before you spend anything
The shipped work Live App Store links where they exist, and an honest label where they don't. Upwork Top Rated, 100% job success across 8 contracts. The profile carries the reviews. Fiverr Where the volume is — 80+ delivered orders and the buyer feedback on each. GitHub Public code under @hamzakaleem430. The studio Who else works on builds, and the offshore question answered directly. Email me hamza@animmza.com — replies typically within ~2 hours.
Talk to the engineer, not a salesperson.
Twenty minutes, 8am – 12pm US Eastern, no pitch deck. Bring the operation and the problem — you will get a straight answer on whether I am the right person for it.