09/02/2024 updated

**** ******** ****
100 % available

Web Developer

146 Uzhhorod, Zakarpats'ka oblast, Ukraine
Ukraine
146 Uzhhorod, Zakarpats'ka oblast, Ukraine
Ukraine

Profile attachments

Roman.pdf

PHPComputer AnimationAuditingBootstrap (Software)Cascading Style Sheets (CSS)Python (Programming Language)LaravelPostgreSQLMongoDBMySQLNode.jsBlockchainSmart ContractsNext.jsWeb PagesTailwindReact.jsExpress.jsPixel PerfectVue.jsBackendAngularJSMaterial UIWeb3.jsKendo UiFront End Software DevelopmentRestful Api
I am a professional and efficient blockchain developer with over 5 years of experience in web and backend development with node.js and express.js.
My main strengths are making realistic promises, being responsive and accountable, and focused on business needs and communication.
Here are summary of my skillset.
  • Blockchain development
    • ERC20 & ERC721 & ERC721A & ERC1155 (Low Gas Contract)
    • Smart Contracts development of various uses like DEX and staking, token bridge etc
    • Using Merkle Trees for NFT Whitelists, NFT minting, NFT collection and NFT marketplace build.
    • Solidity code audit using Remix(EVM)
    • Test with Truffle or Hardhat
    • Test on test network
  • Front-end Development
    • React.js, Next.js, Angular.js, Vue.js
    • Material UI, MDBReact, Kendo UI, Bootstrap, Tailwind CSS, Bulma CSS
    • Animation websites • High performance, pixel perfect, fully responsive
  • Backend Development
    • Node.js, Python, Express framework, PHP, Laravel, RESTful API
    • MySQL, PostgreSQL, MongoDB
  • Wallet Connect and Smart Contracts Integration
    • Web3.js, Ether.js, Moralis
I am available to work full-time and work asap to reach client goals and I ensure the highest quality of product and 100% satisfaction through my work.

Experience

Professional experience5 - 10 years
Freelancer since2017

Languages

EnglishNative speaker

Project history

Full stack Developer

Verasity, Tortola

Insurance

< 10 team member

  • Developed and deployed Donation platform as a full stack developer.
  • Developed mobile CHILD GROWTH MONITOR app by using AI for measurements of children's body status.
  • Developed mobile app backend and developed the API for it.
  • Developed Machine Learning Backend and Machine Learning pipeline.
  • Lead from scratch an online CHILD GROWTH MONITOR platform.
  • Remotely worked with clients on requirement analysis, bug fixing and continuous feedback loop
  • Developed shopping app UI development and backend API. • Setup payment system in website platform and mobile application.
  • Technologies: Angular.js, MUI, HTML/CSS, PHP, Laravel, MySQL, Restful API, Figma, AWS.

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