Igor Stolyarov

Company context. Avito is one of the world's largest online classifieds marketplaces, serving 72M+ monthly users and hosting more than 230M active listings.

Role scope. As part of Avito's platform team, design, build, and evolve an internal Backend-Driven UI platform and high-load Go services supporting search, recommendations, favorites, saved searches, and product experimentation.

• Removed 69 million obsolete records from the production saved-search database, reducing its footprint from 366 GB to 154 GB and keeping the service within existing infrastructure capacity.
• Diagnosed and resolved a production Redis bottleneck, reducing peak response latency from approximately 8 seconds to no more than 150 milliseconds.
• Contributed to A/B-tested initiatives that increased deals by 0.555% in 2025 and 0.22% in H1 2026, generating RUB 31.8M in additional CPA revenue.
• Served as feature lead for a content-safety initiative spanning search, recommendations, item pages, profiles, and the main feed; owned technical design, backlog decomposition, stakeholder coordination, A/B testing, and rollout.
• Accelerated a critical scheduled process by approximately 5x, improved favorites and saved-search response times, supported migration to a unified snippet platform, and strengthened experiment observability with metrics, dashboards, and alerting.

Developed product features and technical systems for Woodoku, a mass-scale mobile puzzle game with more than 100 million Google Play downloads.

• Optimized a heavily loaded map-rendering path, reducing frame drops and improving battery efficiency and gameplay quality on lower-end devices.
• Implemented engagement and retention features including local notifications, configurable popups, bubble tiles, and the rocket power-up.
• Built deeplinking for routing users to specific in-game content and integrated Zendesk into customer-support workflows.
• Managed Amazon Appstore releases with the MAX SDK, coordinated cross-platform delivery, and developed playable ads supporting monetization and user acquisition.
• Built internal Unity tooling and custom build steps, and presented a technical talk on multiplayer games with server-side real-time physics.

Led practical online classes covering Unity, C#, gameplay programming, and the end-to-end development workflow.

Developed the client and server of the real-time multiplayer game Overball.

• Built leagues, character upgrades, matchmaking, MOBA-style abilities, analytics, and A/B testing.
• Created server-control Telegram bots and database infrastructure.
• Ported the Box2D C++ physics engine to C# and optimized mobile UI for low-end devices.

Built manufacturing software for the aviation industry at CJSC Aviastar-SP, including client-server tooling and document generation from databases.

Owned the full mobile-game lifecycle: procedural levels, ad mediation, in-app purchases, integrations, and publishing to Google Play and Microsoft Store.

Created an audio player, a Windows volume-control component, split-screen 2D games, and small utilities for everyday work.