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CONTACT

Nazar
[відкрити контакти](див. вище в блоці «контактна інформація»)
telegram.me/onelenyk

Lenyk
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github.com/onelenyk/

EDUCATION
7+ years · KMP · Flutter · AI tooling

WORK EXPERIENCE WUNU, Ukraine
B.A in Advanced Computer
VanOnGo Company Integrated Technologies

Tech Lead, Mobile | March 2023 - Present 2016-2020

Driver app for a last-mile delivery platform.
· Mentor and collaborate with 2 KMP engineers, making SKILLS
technical decisions and driving mobile architecture across
CORE: Android Jetpack, Android
the team.
SDK, Gradle, Git, Jetpack Compose,
· Migrating a production Android app to KMP + Compose Kotlin, Kotlin Coroutines,
Multiplatform: ~70% of UI and ~80% of business logic Unit/Integration/E2E tests, Compose
already shared across Android and iOS, with full coverage as UI tests
the target.
ANDROID: Camera 2, Dagger 2, FCM,
· Refactored location tracking end-to-end — adopted GPS Firebase Crashlytics, Firestore, Flow,
filtering best practices, added spoofed-location detection, Hilt, LiveData, MVI, MVVM, OkHttp,
and improved overall stability and battery efficiency. Retrofit 2, Room
· Built real-time ongoing notifications for delivery status
KMP/CMP: Compose Multiplatform,
updates, giving drivers live visibility without opening the
Decompose, expect/actual patterns,
app.
Koin, Kotlin, Ktor, Ktorfit, Room,
· Stack: Kotlin, Compose Multiplatform, Decompose, MVI, SQLite, Swift
Swift, Coroutines, StateFlow.
FLUTTER: BLoC, custom UI widgets,
Rumors Dating App Dart, Dio, Firebase, GetIt, MobX, state
management
Flutter Developer (part-time) | February 2026 - Present
AI TOOLING: Claude Code,
Concurrent part-time role building features for a production OpenCode — daily drivers for code
Flutter dating app. gen, refactoring, debugging,
· Shipped onboarding flow, profile update screens, and other architecture. Build custom agent
user-facing features. skills and orchestrate multi-agent
workflows.
· Drove project-wide refactoring, introducing BLoC for state
management alongside the existing MobX setup. DEVOPS: Bash, Docker, Fastlane,
· Stack: Flutter, Dart, BLoC, MobX, Dio, GetIt, Firebase GitHub Actions, GitLab CI, Make
(Crashlytics, Messaging, Analytics), WebSockets.

ALP.COM Company
Android Engineer | November 2022 - March 2023
Crypto exchange app (project paused).
· Fixed UI bugs and improved stability across multiple
screens.
· Stack: Kotlin, Jetpack Compose, Flow.

1

WORK EXPERIENCE
PROJECTS

Axles Company
ManualFlow — Android test
Android Engineer | July 2020 - December 2022 recorder: getevent + UiAutomator
Outsourced contractor working on 5 diverse Android projects → Maestro flows.
across utilities, social networking, and media. Gradik — Dashboard for stuck
· Led 2 utility apps from scratch to release, both with Gradle and Kotlin daemons.
whitelabel support. heare — Proactive ambient voice
· Fully migrated Java codebase to Kotlin on one project. AI assistant: listens continuously
· Upgraded Camera 2 functionality for enhanced image (VAD), decides when to speak, acts
capture capabilities. via browser/bash/file tools.
· Integrated ExoPlayer with video filters for media app.
· Stack: Kotlin, Java, XML, Coroutines, LiveData, Flow, Room, LANGUAGES
Retrofit 2, Dagger2, Koin, Camera 2, ExoPlayer, MVVM,
GitHub Actions, Firebase, Fastlane. English — Professional working
proficiency
Trexoz Company
Ukrainian — Native
Mobile Engineer (solo) | October 2019 - July 2020
Built driver app from scratch as the sole Android developer.
· Developed the entire app solo — Google Maps integration
with driver location and delivery points.
· Implemented WebSockets for real-time order updates and
driver notifications.
· Designed dynamic UI adapting to different driver workflows
and states.
· Stack: Kotlin, Coroutines, XML, LiveData, MVVM, Data
Binding, Google Maps, WebSockets.

Infotechcentre Company
Trainee Engineer | January 2019 - November 2019
Built warehouse, document management, and IoT integration
apps with hardware connectivity.
· Developed warehouse and document management apps
with real-world workflows.
· Built ESP8266-based e-weight integration app, connecting
Android to IoT hardware via Bluetooth/WiFi.
· Designed and implemented MySQL database backend for
multi-app ecosystem.
· Stack: Kotlin, Java, Retrofit, Volley, MySQL, XML, Custom
views, ESP8266, IoT.

updated: June 2026 2