FEATUREDdmitry/vk-android

VK — Android

Dirion · Senior Android · 2024 — Now

Contributed to VK’s Android app — social, music & messaging for 100M+ users: performance, UI consistency, modular architecture.

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100M+

users

82%

test cov

mods → Clean

// Context

VK’s Android app serves 100M+ users across social, music and messaging. At that scale, feed performance and UI consistency move retention directly — every dropped frame is felt.

// What I built

+Rebuilt feed lists on Jetpack Compose with keyed, state-hoisted LazyColumn to cut recompositions

+Enforced a modular architecture so teams ship features independently

+Migrated 5 legacy modules to Clean Architecture with Coroutines

+Raised automated test coverage on core modules to 82%

feature/feed/FeedList.kt

@Composable fun Feed(items: List<Post>) {

- LazyColumn { items(items) { Row(it) } }

+ val st = rememberLazyListState()

+ LazyColumn(st) { items(items, {it.id}) { FeedRow(it) } }

// Result

✓Smooth feed scrolling in a 100M-user app

✓Independent, stable release cadence across modules

✓82% coverage on owned modules

// Stack

KotlinJetpack ComposeCoroutinesClean ArchitectureModularization

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