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Женя Сакун

@0009025

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Senior Android Developer at Viaduct who built Feeds from scratch with 100+ screens and content from 8+ sources.

Ukraine

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What I'm looking for

I'm open to remote or hybrid work, or relocation.

At Viaduct, I built the Feeds Android app from scratch as the sole Android engineer. It brought content from 8+ sources into one personalized feed, with 100+ screens, and was designed for up to 1M concurrent users, validated by load testing.

At DevIT, I led a team of 3 across three production apps. I redesigned VPN Pro, which has 1M+ downloads, in about a month, and built camera, QR-scanning, and NFC libraries from scratch for a B2B inspection app.

As the sole Android developer for WeatherNation, I owned its Android mobile and Android TV apps, including weather maps, live TV, and the home-screen widget. I also migrated the target SDK from 33 to 36 in 3 days.

At BRIZ ISP and Vimmi Communications Ltd, I worked on IPTV and streaming products across mobile, Android TV, and set-top boxes. On AIS Play, I customized ExoPlayer playback for HLS, DASH, and MP4 content and contributed to a 20+ module codebase; the platform had 10M+ mobile downloads and 1M+ custom set-top boxes running the app as the launcher.

Experience

Work history, roles, and key accomplishments

Android Developer

Viaduct

Feb 2026 - Oct 2026 (8 months)

Built the entire Android app from scratch as the sole Android engineer, creating 100+ screens in 9 months and integrating content from 8+ sources. Designed the app to handle up to 1M concurrent users, validated by load testing, and aligned priorities with the US team in daily English calls.

Kotlin Jetpack Compose MVVM Dagger Retrofit AI assisted Development Claude Code

Senior / Lead Android Developer

DevIT

Jul 2025 - Jan 2026 (6 months)

Led the Android team of 3, handling task prioritization, technical decisions, code review, and releases for three production apps. Redesigned VPN Pro in about a month, built in-house camera, QR, and NFC libraries, and migrated legacy Java/XML screens to Kotlin and Jetpack Compose.

Kotlin Java Jetpack Compose XML MVI MVVM Clean Architecture ROOM Retrofit Hilt Koin Lean Back

Android Developer

BRIZ ISP

Jul 2023 - Mar 2025 (1 year 8 months)

Implemented playback features with ExoPlayer for 500+ channels, integrated three payment methods, and created a custom analytics library. Converted Java code to Kotlin and refactored legacy modules.

Kotlin Java Coroutines MVVM Clean Architecture ExoPlayer Lean Back ROOM Retrofit OkHttp GitLab CI CD

Android Developer

Vimmi Communications Ltd

May 2019 - Mar 2023 (3 years 10 months)

Customized ExoPlayer playback for HLS, DASH, and MP4 content and developed features in a team of 3 to 12 developers on a 20+ module codebase. Maintained a 98%+ crash-free rate, agreed API contracts with backend and iOS leads, and delivered releases every 2 weeks to 3 months.