Andrii K.

10+ years building and leading mobile development across iOS, Android, and cross-platform products. I have shipped apps from concept to App Store and Google Play for clients in healthcare, fintech, real estate, e-commerce, and SaaS, including products that handle real-time data, complex integrations, and 50,000+ active users. I work as a mobile team lead at Softermii, a full-cycle software company with 100+ products delivered. That means I bring not just hands-on engineering but the architecture decisions, code review standards, and delivery discipline that comes from leading mobile teams on serious production products. What I build: Native iOS in Swift and SwiftUI, native Android in Kotlin, and cross-platform in React Native and Flutter. I work across the full mobile stack: UI implementation from Figma, REST and GraphQL API integrations, push notifications, offline-first architecture, in-app purchases, background processing, camera and media, maps and location, biometric authentication, and App Store and Google Play submissions including review management. Team lead capabilities: Architecture decisions, sprint planning, PR reviews, junior developer mentoring, and technical scoping with product and design teams. I have led teams of 3 to 8 mobile engineers on multi-platform products with parallel iOS and Android codebases. Apps I have shipped: Healthcare mobile platforms with HIPAA-compliant data handling. Real estate apps with IoT integration and property management flows. E-commerce and subscription apps with Stripe and in-app purchase implementation. B2B marketplace apps with complex role-based access and real-time features. Fintech mobile products with secure transaction flows and biometric authentication.