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Alex G.

Alex G.

iOS&Android Developer | FinTech&AI-Powered Apps | Native | Swift

If you need a mobile app that actually performs in production — not just in a demo — you're in the right place. I'm a native iOS and Android developer with 10+ years of experience building apps that handle real-world load: live transactions, real-time data, marketplace interactions, and AI-powered workflows. My background spans fintech systems, marketplace platforms, and enterprise tools — with a C++ foundation that lets me solve the performance problems most mobile developers hand off to someone else. What I build: — Native iOS apps (Swift, SwiftUI, UIKit) and Android apps (Kotlin, Android SDK) — FinTech apps: payments, transactions, Stripe integrations, financial dashboards — Real-time apps: live tracking, WebSocket-based messaging, Firebase-backed updates — AI-powered mobile experiences: LLM integrations, OpenAI/Claude APIs, smart automation — Full-stack products: mobile app + backend API + admin panel, delivered as one — Marketplace and social platforms: feeds, profiles, messaging, notifications On the backend: high-performance systems in C++ and Python, REST APIs, PostgreSQL, Redis, AWS, Docker. I can own the full stack or plug into your existing architecture. How I work: architecture and planning first, then clean code, native-first approach (no cross-platform shortcuts unless specifically needed), and fast communication throughout. I treat every project as if I'm a technical co-founder, not a contractor. Available for both MVPs and long-term product development. Tell me what you're building.

🇺🇦Kharkiv, Ukraine$45/hr100% JSS4.93 (27)Since Dec 2013

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#39,794 / 412k
🇺🇦Country#2,660 / 14.3k
Revenue, last 30 days
$0
Total earnings
$99k

Billed in all: $114k

World#39,794 / 412k
🇺🇦Country#2,660 / 14.3k
Per project
$2.8k
Projects, last 6 months
0
World#209,850 / 412k
🇺🇦Country#7,324 / 14.3k
Projects in all
35

Across 37 contracts

62% fixed38% hourly
World#85,277 / 412k
🇺🇦Country#3,766 / 14.3k

Earnings, last 30 days

$114kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$112k$114k$116k$118kOct 8Oct 23Nov 7

Skills