Senior iOS Engineer with 10+ years in fintech, banking, and crypto. I shipped core features for Bakong — the National Bank of Cambodia's nationwide mobile banking app — and built on a multi-chain non-custodial crypto wallet (Bitcoin, Ethereum/EVM, Solana). What that looks like in numbers: cut user-reported issues in core banking flows by 55% and lifted onboarding completion 30% (Bakong); eliminated 45% of redundant API calls and made median screen loads ~3x faster via Instruments profiling and caching (crypto wallet); reduced a payments module's crash rate by 80% (Sberbank); shipped 3 white-label apps from one codebase (Seamm). Core stack: Swift, SwiftUI, UIKit, Combine, Swift Concurrency (async/await, Swift 6 strict concurrency), MVVM + DI, modular SPM. Payments: StoreKit 2, RevenueCat, Stripe SDK. Tooling: XCTest, Instruments, Fastlane, TestFlight, GitHub Actions. On the side I run Scriptmate, an iOS app for actors I designed, built, and shipped solo — SwiftUI, real-time cue detection on the Speech framework, AVFoundation audio routing, LLM-powered script parsing on Cloudflare Workers, monetized with StoreKit + RevenueCat. 500+ downloads and paying subscribers within three months. It's my proof of end-to-end ownership, not an exit plan. Based in Buenos Aires, working remote with US Eastern overlap, as a contractor (W-8BEN) or via EOR — no sponsorship needed. Open to senior iOS roles: DM or peter.lavskiy@gmail.com.
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