Saifullah AhadOpen to work — remote, or anywhere in the world
Saifullah Ahad/AI Product Builder
240+
Android apps live
on Google Play.
I design the system, write the specs and direct the AI agents that build every app — then I prove each release on real phones before it ships.
Live on Google Play Primary developer account ↗ Second developer account ↗
Android apps live on Google Play
Google Play developer accounts
languages the apps ship in
person directing the AI agents behind them all
Why hire me
What I bring to your team
The mix AI-first companies are looking for: someone who makes AI agents deliver real products — reliably, and at volume. 240+ live apps are the proof.
Design AI build systems that ship
Multi-agent workflows with clear specs, quality gates and hand-offs, so AI output becomes a product people use — not a demo.
Direct products end to end
Problem, scope, flows, design standard, acceptance criteria, launch and upkeep. I own the whole line, not one slice of it.
Build quality gates that scale
Automated checks plus proof on real devices catch what AI misses, long before a user ever does.
Run releases at volume
Store listings, policy declarations, privacy pages, signing and updates — for 240+ apps in 36 languages.
Roles I am open to — remote, or anywhere in the world:
AI Product BuilderAI Product ManagerAI Workflow OrchestratorProduct Delivery LeadEngineering I have specified and verified:
Local-first CRDT syncPeer-to-peer mesh messagingShamir secret sharingOPRF private matchingAndroid Keystore + AES-GCMOn-device FFT signal processingOn-device OCRGraph reconstructionWear OS36-language localizationSelected work
Six of the 240+, each solving a real problem
Messaging without a network, earthquake alerts, lab-report trends, blood donation, chart data recovery and hearing checks.
Nearby phones pass messages to each other with no SIM, no internet and no servers — messaging that keeps working off the grid.
Merges earthquake reports from several providers, explains the likely impact at the places you save, and alerts you — on your phone and your Wear OS watch.
Reads lab reports from a photo, PDF or file, rebuilds the rows for you to check, and charts each result over time against its own reference range.
Connects people who need blood with willing donors nearby: requests, location search and matching.
Recovers the numbers behind a chart image or PDF: calibrate the axes, trace each line, correct the points and export the data.
A hearing check on your phone: pure-tone tests, speech-in-noise checks, tinnitus screening and a history of results.
Behind the build
Six apps, from problem to proof
How I actually work: the plan I wrote, what the testing caught, and how each app reached Google Play.
The first check said "ready" — the sound engine had never run. Making it run found three bugs, then a controlled tone test proved the fix.
The phone being sold tests itself and hands the buyer a signed result — proven on a real phone, with zero crashes.
Friends and family cancel debts that go in a circle — only when everyone in the loop agrees. Proven with a real two-person test.
Tells you exactly where and when to look for the new crescent, from real astronomy — and says when a sighting was impossible.
Orders a village's one harvester by which field is losing grain fastest — and every phone can check the order is fair.
Shows where a link really goes before you open it. Testing caught two real bugs, fixed with tests that failed first.
How I work
The system behind 240+
A pipeline I designed and run every day. AI agents write the code. I own everything around it: the problem, the spec, the proof and the release.
Find a real problem
Every app starts as one sentence: the real problem an ordinary person has. If I can't write that sentence, the app is not built.
Write the spec
I turn the problem into a precise build spec: the hard engine at its core, the screens, and the proof it must pass before anyone sees it.
AI agents build
AI coding agents — Claude, OpenAI Codex, Google Antigravity — build it from a blank page to that spec. One app at a time, never a template.
Proof on real phones
The signed release build is tested on real phones and tablets, and every claim is backed by recorded evidence, not a promise.
Review
I check the proof, look at every screen myself, and send back anything that is not right. Nothing ships on an agent's word.
Release and upkeep
Store listing, policy forms, privacy pages, release, and the yearly Android updates — across two Google Play developer accounts.
2023 – Present
Founder & AI Product Builder — SAIFULLAH.AI
Designed and run the AI engineering pipeline behind 240+ live Android apps: product vision, specifications, quality standards and every release.
2010 – 2017
Account Manager — Eve Group
Full-time, on-site in Dhaka.
Why I build
“Software is a natural resource.”
Nature doesn't charge for the oxygen it gives. Useful software should reach everyone too — so every app I publish solves a real problem and carries no ads, subscriptions or paywalls.
Remote-ready
Ready for your team, wherever it is
Remote for a company anywhere in the world, or on-site in your country.
Time zones
Any time zone
I work your team's hours — from the US and Canada to Europe, the Middle East, Asia and Australia.
Start date
Can start now
Available immediately for full-time work.
Always online
Backup power & internet
Power cuts don't stop the work.
Relocation
Any country
Ready to move for an on-site role, with employer visa sponsorship.
Open to work
Let's build your AI product system.
Full-time roles — remote, or on-site anywhere in the world: AI Product Builder, AI Product Manager, AI Workflow Orchestrator, Product Delivery Lead.
Freelance or contract project? Hire me on Upwork or Fiverr.
Based in Dhaka, Bangladesh (UTC+6) · works any time zone · can start now · ready to relocate with visa sponsorship.