11/03/2026 updated

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Android Developer & Kotlin Multiplatform Engineer

Tbilisi, Georgia
Only remote
Master of Science in Software Engineering for High-Load Mobile Systems
Tbilisi, Georgia
Only remote
Master of Science in Software Engineering for High-Load Mobile Systems

Profile attachments

kirill-borichevskiy_android.pdf

Android (Software)Android Software DevelopmentAndroid NDKAndroid StudioMobile Application DevelopmentSystems IntegrationGoogle FirebaseGitLabKotlinJetpack ComposeGoogle PlayMultiplatform
Android Development
Expertise in Android SDK, Android Jetpack, Jetpack Compose, Android Views, XML, and architectural patterns such as MVVM, MVI, and MVP. Proven track record of building and optimizing consumer apps with millions of installs on Google Play.

Kotlin & Kotlin Multiplatform (KMP)
Deep proficiency in Kotlin and Kotlin Multiplatform for building shared modules across Android and iOS. Experience building design systems and AI-pipelines with reusable components using KMP.

Performance Optimization & Architecture
Strong background in optimizing app performance, including media loading, query optimization with GraphQL, and build time reduction. Skilled in Clean Architecture, modularization, and dependency injection using Dagger, Koin, and Hilt.

Networking & APIs
Hands-on experience with REST API, Apollo GraphQL, Ktor, Retrofit, OkHttp, and WebSockets for building robust network layers in mobile applications.

Reactive & Asynchronous Programming
Proficiency in Kotlin Coroutines, Flow, and RxJava for managing asynchronous operations and reactive data streams in Android applications.

Testing
Experience with JUnit, MockK, Mockito, Turbine, Espresso, Robolectric, Detekt, Ktlint, Compose UI Testing, and Compose Screenshot Testing for ensuring code quality and reliability.

CI/CD & Version Control
Familiarity with GitHub Actions and GitLab CI/CD pipelines for automating build, test, and deployment workflows.

Firebase & Analytics
Experience integrating Firebase, Sentry, and Mixpanel for crash reporting, monitoring, and user analytics in production applications.

Bluetooth Low Energy (BLE) & Hardware Integration
Experience integrating BLE beacon pairing and improving auto-start logic in SDK environments, with measurable improvements in trip detection accuracy.

In-App Monetization & Updates
Integration of Google Play Billing, In-App Review, and In-App Updates, achieving high purchase success rates and improved app ratings.

Experience

Professional experience5 - 10 years
Freelancer since2020

Languages

EnglishFluent

Project history

Android & Kotlin Multiplatform Developer

Instacart
Worked in Android and KMP teams on Instacart's flagship consumer app with 10M+ installs on Google Play. Built a Kotlin Multiplatform design system AI-pipeline from scratch for Android and iOS with 40 reusable components. Implemented on-demand device log export through a shared module, resolving 38% more incidents per sprint. Proposed and implemented Instacart MCP, increasing monthly orders by 60K. Optimized complex queries on the home screen using GraphQL, reducing P95 loading time from 8.5s to 3.9s.

Android Developer

Zalo
Worked on Vietnam's leading messaging and super-app platform with 75M+ monthly active users. Built Android experience for Kiki Info AI assistant, reaching 1M+ user visits in less than two months. Developed Zalo Video Android flows for short-form creator content supporting ~40M users per month. Optimized media loading in chat by improving the native C++ BlurHash decoding pipeline, reducing P95 media preview load time by 30% and janky frames by 11%. Migrated video processing from MP4Composer to Media3, improving success rate by 3-8 percentage points. Refactored the monolith into feature modules and configured the DI graph, reducing build time by nearly 3x.

Android Developer

DriveQuant
Worked on the Android white-label mobile app from scratch and contributed to the DriveKit SDK. Integrated BLE beacon pairing and improved auto-start logic, increasing trip detection accuracy from 84% to 92%. Integrated Google Play Billing, In-App Review, and In-App Updates, achieving 96% purchase success rate and improving app rating by +0.6 points. Optimized DriveKit SDK background detection by delaying GPS activation, reducing battery impact by 8%. Added offline trip recording and retry-based synchronization, recovering 98% of temporarily failed trip uploads.

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