Trained and certified Web3 engineers to build DeFi dApps for you.


At Chainza, we meticulously scout and train top-tier Web3 engineers to craft DeFi dApps tailored to your needs. Our talent search focuses on local Ukrainian graduates from mathematics and IT faculties who boast hands-on experience with core technologies like Typescript, React, or Express, along with exceptional English proficiency and communication skills. Our rigorous education process delves into DeFi concepts, blockchain, and Web3. Over two months of intensive training, our engineers can specialize in one of three key domains: Frontend, Backend, or Full Stack Web 3 Engineering. Each engineer must successfully pass a qualification exam to earn their Chainza specialization. Our versatile engineers excel in various tech stacks: ⚫️ Frontend Web3 Engineering - Typescript, Next.js, React.js, Material UI ⚫️ Backend Web3 Engineering - Typescript, Express ⚫️ Full Stack Web 3 Engineeing - Typescript, React, Express ⚫️ Smart Contract Engineering - Solidity, Typescript ⚫️ Web3 QA - A QA specialist with blockchain background certified by Chainza. Whether you're in search of a Web 3 Engineer for your project or if you're an experienced Web 3 Engineer seeking new opportunities, explore our list of available specialists or reach out to us - we're always on the lookout for talented individuals to join our team!

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Blockchain, NFT & Cryptocurrency

Our team provides all kinds of Blockchain related services: - Creation of fully functional websites and trading platform for NFT minting. - Blockchain Mobile, Desktop, Web Applications. - Writing a smart contract, deploying contracts for NFT minting or NFT website, testing - Wallets integration

Web Development


  1. Ethereum
  2. Blockchain
  3. ExpressJS
  4. Solidity
  5. NFT
  6. web3.js
  7. JavaScript
  8. Web3
  9. React
  10. NodeJS Framework
100% Job Success

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Upwork activity

Hourly rate

$45.00 - $100.00

Minimum project size


Total earned


Total hours


Total jobs


Member since

Jan 5, 2022

Company information

Agency size

2-10 workers

Year founded


Client focus

Large business

Medium business

Very small business

Small business

Ukrainian: Native or Bilingual
English: Fluent
Polish: Fluent
Spanish: Fluent