Alex Carter
Mobile App Developer — iOS, Android & Cross-platform
Experienced mobile app developer crafting seamless iOS & Android experiences with Flutter, React Native and native code — with a proven track record of shipping to millions of users across fintech, health and commerce.
San Francisco, CA — Remote friendly
FinFlow
Banking AppA modern mobile banking experience with biometric auth, instant transfers and smart spending insights.
PulseFit
Fitness TrackerWorkout tracking with real-time health-sensor integration, social challenges and AI-driven coaching plans.
Cartly
Social ShoppingA social commerce app with live-shopping streams, AR product previews and one-tap checkout flows.
Code with craft & purpose
I'm a mobile app developer with 6+ years of experience building products across fintech, health and e-commerce. I care deeply about buttery-smooth 60fps interfaces, clean architecture and shipping features users actually need.
From the first wireframe to the App Store release, I own the full lifecycle — design collaboration, development, CI/CD, and post-launch analytics.
Full-lifecycle delivery: design collaboration, development, CI/CD and post-launch analytics.
Apps I've built and shipped are in daily use around the world — across fintech, health and commerce.
Shipping polished mobile apps for startups, SaaS and DTC brands — native iOS, Android and cross-platform.
What clients say
Feedback from founders and teams I've partnered with.
Alex rebuilt our app from the ground up in Flutter. Crash rate dropped 90% and our store rating went from 3.2 to 4.8. Absolute professional.
Rare mix of engineering depth and design sense. Every animation, every transition — pixel perfect. Shipped two weeks ahead of schedule.
Communicates clearly, estimates honestly, and delivers more than promised. Our AR shopping feature became the most-used part of the app.
Our courier tracking went from a constant support headache to the feature customers praise most. Alex owned the problem end to end.
He took a rough idea and turned it into a polished learning app our students actually open every day. Retention doubled in three months.
The calmest launch we ever had. Performance budgets, crash-free sessions, App Store featuring — everything he promised, delivered.
Have a project in mind? Let's build it.
I'm currently open to freelance projects and full-time opportunities. Drop me a message and I'll get back to you within 24 hours.