Miroslav Bulgakov

- Developing custodial and non-custodial crypto wallet Android applications using Kotlin and Jetpack Compose Built comprehensive test suites for cryptographic operations, transaction signing, and wallet security flows (JUnit, Mockk, Turbine for Flow testing)

- Leveraged AI tools (Claude, GPT) to analyze codebase context and expand test coverage - generated edge-case scenarios for crypto operations that manual testing missed

- Led migration from RxJava to Coroutines, improving codebase maintainability and reducing complexity

- Conducted code reviews and mentored junior developers on modern Android best practices

- Optimized performance: reduced startup time and memory footprint with Android Profiler & LeakCanary

- Defined team coding standards and architectural guidelines; onboarded new engineers through structured code reviews and pair programming sessions

- Participated in sprint planning and backlog grooming; broke down product requirements into technical tasks and estimated delivery timelines

- Collaborated with iOS, backend, and QA teams to design shared API contracts and align on cross-platform feature delivery

- Acted as a technical point of contact for the mobile team: triaged production issues, coordinated hotfix releases, and communicated status to stakeholders

- Contributed to hiring process: reviewed take-home assignments and conducted technical interviews for Android engineer candidates

- Designed and maintained shared KMP modules (networking, domain, data) with stable public API contracts for iOS and Android

- Integrated Claude API for AI-driven personalized training plans with automatic adaptation based on workout analysis

- Built full OAuth 2.0 flow with Strava API: ASWebAuthenticationSession (iOS) / Custom Tabs (Android), encrypted token storage

- Developed fuzzy-matching algorithm for planned vs. completed workouts and a rule-based Adaptation Engine with unit-tested core logic

- Implemented KMP ↔ Swift interop: StateFlow bridging to SwiftUI bindings, sealed class mapping, @MainActor thread-safe updates

- Shipped localization for 7 languages, Firebase Analytics (60+ events), Crashlytics, background sync (WorkManager / BGTaskScheduler)

Built cross-platform app with KMP/Compose for creating workout photo overlays (running, cycling) Integrated with Strava, Garmin, Polar, and Suunto APIs via modular isolated adapters Implemented animated shaders in Compose, native maps (MapKit / Google Maps), dynamic themes based on photo colors Managed full product lifecycle: Google Play & App Store publishing, CI/CD, analytics (PostHog)