Stanislav A.

6+ years of experience building, launching, and improving native iOS apps with Swift, SwiftUI, and UIKit. I handle iOS development from architecture and implementation through testing, App Store release, and production support. My background spans consumer apps, mobile banking, workplace safety, and connected devices. I’ve owned the iOS development of a new product and delivered features within established engineering teams. Some of the work I’ve delivered: * Complete app delivery: Built Express Package Tracker from scratch, covering architecture, shipment flows, API integration, subscriptions, analytics, and release. Added offline shipment history with Realm and push notifications with deep links. Coordinated requirements, estimates, and delivery with design and backend teams; the app was approved on its first App Store submission. * Subscriptions and product analytics: Implemented paywalls, purchase and restore flows, entitlements, and one-time purchases with StoreKit and RevenueCat. Worked on onboarding, routing based on deep-link sources, push re-engagement, and in-app chat. Tracked product funnels with Firebase and Amplitude, implemented attribution with AppsFlyer, and worked on A/B tests for onboarding and paywalls. * Mobile banking: Owned lending features across two versions of a US mobile banking app with 500K active users. My work covered UI, REST API integration, feature analytics, and unit tests, reaching approximately 96% coverage of the ViewModel and business logic in my area. * Background behavior and location: For SafetyCulture’s Lone Worker module, implemented Flic 2 BLE SOS support, background reconnection and state restoration, motion-assisted location tracking, geofencing, and fall-detection integration. Handled local caching and offline retries while accounting for battery use and iOS background restrictions. In a separate GPS app, fixed interruptions in background tracking and improved map performance. * Connected devices and on-device ML: Built BLE pairing, reconnection, sensor configuration, and Wi-Fi provisioning for Flora’s plant sensor. Integrated a pretrained image-classification model with Core ML and a custom AVFoundation camera, and built an offline plant archive and custom SwiftUI charts. I work with MVVM, Combine, Swift Concurrency, RxSwift, Realm, Firebase, and XCTest. Code reviews, automated tests, and technical documentation are part of how I keep changes maintainable. I work directly with clients and alongside product, design, and backend teams. I clarify requirements, agree on scope and estimates, discuss technical trade-offs, and keep progress visible through updates and demos. I can take on a defined project or contribute to ongoing product development. Send me a brief description of your app and what you want to launch, improve, or fix.