Igor P.

Hi 👋 I build mobile apps that make it to launch - and keep working long after.

Senior mobile engineer, $200K+ earned on Upwork across 8,000+ hours and 30+ shipped apps holding 4.5★+ on the App Store. My longest engagement so far: a single 4,200-hour / $128K retainer rated 5.0 stars. On several projects I've stepped into a lead role - owning architecture, running code reviews, and bringing new developers up to speed.

Industries I've shipped in: HealthTech, FinTech, AgriTech, Pharma E-commerce, Industrial IoT, Logistics & Delivery, Travel & Tourism, AI Assistants, EdTech, Sports & Outdoor, Telecom, Entertainment, Lifestyle

Stack:

-iOS (native): Swift, SwiftUI, UIKit, Combine, Async/Await, Core Data, MVVM / VIPER, clean architecture
-Android (native): Kotlin, Jetpack Compose, MVVM, Coroutines & Flow
-Cross-platform: React Native, Kotlin Multiplatform Mobile (KMM) for shared business logic
-Integrations: REST APIs, Firebase, WebSockets, Bluetooth/BLE, GPS/CoreLocation, HealthKit, Apple Watch
-Ops: CI/CD pipelines, App Store Connect & Google Play releases, scalable architecture patterns

How I work:

Reply within ~4 hours during working hours
Architecture and a working POC land in sprint one - not just diagrams
Start with a scoped 2-week trial sprint; clean exit if it's not a fit, no lock-in
I lean toward longer engagements - most of my strongest work has come from 6-month+ retainers

Scoping a new mobile build - iOS, Android, or cross-platform? Send the brief and I'll come back within 24 hours with a scoped estimate and a first-sprint plan.