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viatsko/README.md

Valerii Iatsko

Staff Engineer · Full-Stack · High-Scale & Low-Latency Systems

Staff engineer, 15+ years across Google, Microsoft, Spotify and Booking.com. I work across the stack — data pipelines, backend services, and web, mobile, iOS and Android frontends — mostly on systems where scale or latency is the hard part. Love coming up with original solutions to complex problems.

Some things I've built

  • Google — AI/ML data pipelines for commerce analytics & conversions; previously the Shopping merchant-reporting frontends.
  • Microsoft — built the content & discovery feed in Office 365 (Teams & Office.com) from scratch, in React / React Native.
  • Spotify — rebuilt Checkout & payments and led the web team behind spotify.com.
  • Booking.com — ran large-scale conversion experimentation on the core booking funnel and founded Booking's first web developer-experience team.

Open source & community

  • awesome-vscode — creator of the curated VS Code list: 28.7k★, featured in Smashing Magazine.
  • charybdis — former core-team member of the IRC daemon that powered freenode.net (~90K+ concurrent users at its peak).
  • Conference organiser & speaker — React Amsterdam, AmsterdamJS, React Day Berlin; programme committee for JSNation / AI Coding Summit; jury for the React & JavaScript Open Source Awards (GitNation).

Projects

  • Low-latency trading platform — a private project I built for my own trading: a Rust backend on real-time market data, with order execution and risk across multiple venues.
  • oldams.nl — Old Amsterdam: a geocoded collection of historical photographs that became part of Amsterdam's official maps collection.

Find me

LinkedIn · Medium · viatsko@viatsko.me

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  1. awesome-vscode awesome-vscode Public

    🎨 A curated list of delightful VS Code packages and resources.

    JavaScript 28.8k 1.4k

  2. lyn lyn Public

    Lyn: The Elixir CMS

    Elixir 88 17

  3. hypernova-styled-components hypernova-styled-components Public

    💅 Styled Components bindings for Hypernova.

    JavaScript 14 5

  4. react-for-beginners react-for-beginners Public

    Source Code for my React for Beginners articles serie

    JavaScript 12 6