For hire as a remote senior mobile and AI engineer in the European Union, United Kingdom, United States, and Canada. Ali Wajdan is a senior Flutter, SwiftUI, and Node.js engineer based in Lahore, Pakistan, with five years of experience building production mobile apps and the AI and backend services behind them. Experience with Anthropic Claude and OpenAI integrations, RevenueCat subscriptions, Firebase backends, FastAPI services, and Stripe payments. Open to remote full-time employment or long-term contract work. Five hours of overlap with European working hours, three hours with US East Coast. Available to hire as a Flutter engineer, iOS engineer, AI mobile app developer, full-stack mobile app developer, or senior mobile engineer, full-time or on a fixed-scope project.

Full-Stack Mobile App Developer for Apps, Backends, and Store Launches

I build the whole thing: the app, the API it talks to, the AI on top, and the release pipeline that puts it in front of users. For an early startup that means you can ship a real v1 without hiring a separate mobile engineer, backend engineer, and AI specialist. One thread, one person accountable, from idea to a versioned build in both stores.

The short version

Ali Wajdan is a full-stack mobile app developer who builds the mobile app, the backend API, the AI layer, and the App Store and Google Play release in one thread, so a startup does not need to hire three people for its v1. He has shipped 15+ apps used by roughly 500,000 people. On DreamyBot (100,000+ users) he built the Flutter app, the FastAPI and Node.js backend, and the streaming Claude layer himself. On Monetiza (120,000+ users) he picked the architecture, shipped both stores, and ran the RevenueCat subscription stack end to end. His stack spans Flutter and SwiftUI on the front end, Node.js, FastAPI, Postgres, Firebase, and Supabase on the back end, RevenueCat and Stripe for payments, and Claude and OpenAI for AI. He works remotely from Lahore (GMT+5) as a full-time hire or on a fixed-scope build.

  • 500K+
    Combined users across 15+ shipped apps
  • 120K+
    Monetiza: app, both stores, subscriptions, solo
  • 100K+
    DreamyBot: app, backend, and AI layer, solo

/ When to hire me

  • You're pre-Series A and can't yet hire separate mobile, backend, and AI engineers.
  • You want one person accountable for the app from idea to both stores.
  • Your backend and app are drifting apart because two contractors don't talk.
  • You need a v1 that's built to hand off cleanly, not a pile only one person understands.

/ What I build

  • The mobile app in Flutter or SwiftUI for iOS and Android.
  • The backend API in Node.js or FastAPI, with Postgres, Firebase, or Supabase.
  • Subscriptions and payments with RevenueCat and Stripe, validated server-side.
  • The AI layer with Claude or OpenAI when the product needs it.
  • Auth, push, deep links, analytics, and the unglamorous plumbing.
  • Both store releases, plus a README and walkthrough so a new hire can take over.

Stack.

Tools for this work
Mobile

Flutter, Dart, SwiftUI

Backend

Node.js, TypeScript, FastAPI, Python

Data

Postgres, Firebase, Supabase

Payments

RevenueCat, Stripe

AI

Anthropic Claude, OpenAI

Release

App Store Connect, Play Console, CI/CD

Selected work.

Proof, with numbers
CASE 02 / CONSUMER AI

DreamyBot.

  • Consumer AI
  • Flutter
  • FastAPI
  • Python
  • Node.js

An AI consumer app with real subscriptions, not a demo. 100,000 users. One engineer doing mobile, API, and the AI layer. Streaming responses, prompt orchestration, RevenueCat tiers, a backend that kept up before I had to hand it off.

  • 100K+Users across mobile and web
  • 4.7iOS App Store rating
  • 38%Day-30 retention in the AI category
Read the case study
DreamyBot AI consumer app chat interface with streaming responses powered by Anthropic Claude.
dreamybot.ai2024 to 2025
CASE 01 / FINTECH

Monetiza.

  • Fintech
  • iOS + Android
  • Flutter
  • RevenueCat
  • Firebase

A personal-finance app that had to feel as trustworthy as the bank apps it sits next to on the home screen. I picked the architecture, shipped both stores, and ran the subscription stack end to end.

  • 120K+Active users across iOS and Android
  • 4.8App Store rating, 8K+ reviews
  • 11×Subscription revenue growth in year 1
Read the case study
Monetiza personal-finance app home screen showing accounts list, subscription gating, and AI-categorised transactions.
monetiza.app2023 to 2025

Ali shipped what would have taken our team a quarter in three weeks. He owns the whole stack, mobile, API, infra, without us having to chase him.

Founder, Monetiza · series-seed fintech

Common questions.

FAQ
  • Can one engineer really build the app, backend, and AI layer?

    Yes, that's most of my recent work. DreamyBot is a 100,000-user app where I built the Flutter client, the FastAPI and Node backend, and the streaming Claude layer myself. For a v1, one senior engineer who owns the whole stack is faster than three who hand off between each other.

  • What does a full-stack mobile app developer actually do?

    Designs and builds the mobile app, the backend API it talks to, the database, the payments and auth, and the AI features, then ships it to the App Store and Google Play. It's the person who can take an idea to a released app without a separate hire for each layer.

  • Do you take a project from idea to launched stores?

    Yes. I've taken apps from a blank repo to both stores, including architecture, build, subscriptions, store metadata, and review. Monetiza and DreamyBot were both end-to-end, and both are live with six-figure user counts.

  • What happens when you hand the project off?

    I end every project with a README a new engineer reads in 20 minutes, an architecture diagram, and a walkthrough call. I don't leave repos that only I can maintain, whether the next owner is your in-house team or another contractor.

  • Full-time or fixed project?

    Either. I take one remote full-time engagement at a time with a startup in the EU, UK, US, or Canada, and I also take fixed-scope full builds: idea to a v1 in both stores, with a clean handoff.

Building a v1 from scratch?

Tell me the idea. Thirty minutes, no pitch: we work out what the smallest real v1 looks like and whether a full-time role or a fixed-scope build fits how you want to work.