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Vladyslav Khorunzhyi

@vladyslavkhorunzhyi

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I build responsive full-stack EdTech and MedTech products with React, Node.js, Python, and PostgreSQL.

Armenia

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What I'm looking for

I'm looking to build impactful full-stack product features, particularly in EdTech or MedTech, using React, Node.js, Python, and PostgreSQL.

I've built full-stack features for SmallChess, including a Node.js chess exercise generator that coordinates asynchronous chess-engine responses with promises and retries.

I reworked a heavy chess analysis pipeline into chunked responses, reducing wait time from 15–20 seconds to 9–10 seconds while keeping the UI responsive. I also built a leaderboard with server-rendered rankings, cursor pagination, cached snapshots, and stable ordering for tied scores.

At Intelance, I developed a library of 10+ responsive React and Material UI components, implemented Redux for a patient dashboard, and increased Jest coverage for the core scheduling module from 40% to 75%.

I enjoy building practical product features across React, Node.js, Python, REST APIs, and PostgreSQL, from configurable form builders to performant backend queries.

Experience

Work history, roles, and key accomplishments

Full-stack Engineer

SmallChess

Jan 2025 - Dec 2026 (1 year 11 months)

Built a chess exercise generator on Node.js, handling async engine replies with promises and retry logic. Reworked a heavy analysis feature to return results in chunks, cutting wait time from 15-20s to 9-10s, and built a leaderboard with cursor pagination and composite indexing.