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Hey Everyone 👋

Hi. I'm Anton, a senior software engineer (+10 years) who likes to work with JavaScript(Typescript)/CSS/HTML/Solidity/C++.

  • Blockchain developer (Smart Contract/Dapp/DeFi/NFT/DAO, Bitcoin/Ethereum/BSC/Polygon/Avalanche/Harmony/Fantom/Polkadot/Kusama, Solidity/Truffle/Ganache/Hardhat/Waffle/OpenZeppelin, Web3.js/Ethers.js/Web3-react/Substrate/Polkadot-js API/Typechain/TheGraph/IPFS)
  • Web front-end developer (TypeScript/JavaScript, React.js/Next.js/Preact/Gatsby, React Native, Vue.js/Nuxt.js, Eleventy, Node.js, PWA, GraphQL, TDD)
  • Web performance & UI/UX expert (, Core Web Vitals, Lighthouse, WebPageTest, PageSpeedInsights, Speed Curve)

In the past years, I've been working with a Google team and Nuxt team on web front-end development, web performance optimization, best practices in modern web development (React.js & Vue.js), and UX improvements.

These days I'm passionate about blockchain technologies and mainly focusing on Smart Contract/Dapp/DeFi/NFT/DAO development.


  • 🌱 I've been working on web performance optimization and UI/UX improvements (React.js & Vue.js).
  • 🌱 I'm currently focusing on blockchain technologies.
  • 🤔 I'm looking to help with building Dapp/DeFi/NFT/DAO products.
  • 💬 Ask me anything about best practices in modern web development, web performance optimization & UI/UX improvement, and blockchain Smart Contract/Dapp/DeFi/NFT/DAO development.
  • 📫 How to reach me:
  • 😄 Pronouns: He/His
  • Dev motto: First do it, then do it right, then do it better.

Open-Source Awards:


Open Collectives:

Languages and Tools:

Blockchain Development

Web & Mobile Development


Find me elsewhere 🌎

Linkedin Badge Twitter Badge Open Collective


  1. Dopex-SSOV Public

    Forked from bejaxer/Dopex-SSOV

    Single Staking Option Vaults (SSOV)


  2. TypeScript 4

  3. ⚡️Faster subsequent page-loads by prefetching in-viewport links during idle time

    Nunjucks 9.4k 364

  4. Deliver experiences best suited to a user's device and network constraints

    JavaScript 4.8k 114

  5. A Next.js Movies App

    JavaScript 261 57

  6. Demos for Adaptive Loading - differentially deliver fast, lighter experiences for users on slow networks & devices

    JavaScript 248 35

428 contributions in the last year

Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Mon Wed Fri

Contribution activity

July 2022

anton-karlovskiy has no activity yet for this period.

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