10/19/2026 updated
Senior Android Engineer | Kotlin, Jetpack Compose, KMP | 12 years experience
About me
Senior Android Engineer from Krakow, 12 years in mobile. Hands-on owner of a white-label codebase shipping 150+ apps to Google Play and Huawei AppGallery, up to ~250,000 peak users. Kotlin, Compose, KMP, CI/CD, AI-assisted engineering.
Android: Kotlin (9 yrs), Java (12 yrs), Android SDK, Android Studio, Jetpack Compose, XML views, Coroutines, Flow/StateFlow, ViewModel, MVVM, Clean Architecture, multi-module Gradle, Room, SQL, Retrofit/OkHttp, Firebase, Play Services, HMS (Huawei AppGallery).
Cross-platform: Kotlin Multiplatform (KMP, ~89% shared code), iOS with Swift (9 yrs) and Objective-C.
CI/CD and quality: ~25 pipelines, ~77 build/lint/test steps, unit and screenshot testing, ~95% line coverage on the newest module, code review, performance profiling.
Scale: own a white-label codebase building 150+ production apps for a B2B SaaS events platform, ~250,000 peak users; server-driven UI, per-client feature flags; built a centralized translation service (versioned API, Room cache, StateFlow).
AI-assisted engineering: spec-first workflow, Claude Code, MCP integrations, multi-agent architecture review (15 issues raised, 12 fixed), ADRs; estimated 8.6 people-weeks delivered in ~30 hours.
Experience: ExpoPlatform 06/2015 - present (11 yrs), Mobidev 01/2014 - 05/2015.