Alex Jin

Alex Jin

About

Detail

Freelance | Senior Full Stack | Smart Contract | Ethereum | Solana | Ton | Solidity | Rust | FunC | Cosmos SDK | CosmWasm | Golang | Trading Bot | DeFi | DEX |
Kłodzko, Lower Silesian Voivodeship, Poland

Contact Alex regarding: 

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Full-time jobs
Starting at USD45/hour
Flexible work
Starting at USD45/hour
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Timeline


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Résumé


Jobs verified_user 0% verified
  • Clovyr
    Senior Blockchain Developer
    Clovyr
    Nov 2022 - Jul 2024 (1 year 9 months)
    - Developed and implemented a smart contract using Solidity on Ethereum, facilitating secure and transparent financial transactions, reducing processing time by 40%, and cutting operational costs by 25%. - Designed and optimized a decentralized application (DApp) architecture with React.js and Node.js, leading to a 30% increase in overall system performance and scalability, accommodating over 1000 concurrent users. - Collaborated with cross-functional teams to integrate blockchain technology, utilizing Golang for backend services and PostgreSQL for data storage, streamlining data sharing and enhancing interoperability, resulting in a 20% productivity improvement. - Contributed to the development of a consensus mechanism upgrade on the Solan
  • B
    Senior Blockchain Developer
    Barra Nacional de Comercio Exterior ®
    Apr 2020 - Sep 2022 (2 years 6 months)
    - Optimized blockchain transaction throughput by 40% through meticulous network and protocol enhancements on Ethereum, significantly reducing gas fees and improving user transaction experience. - Engineered a proprietary blockchain solution for a supply chain management system using Hyperledger, Solidity, and DApp Development, increasing traceability and reducing counterfeit incidents by 70%, directly contributing to a 20% growth in client trust and business volume. - Collaborated with cross-functional teams to integrate blockchain technology into existing financial systems, which streamlined payment processes and reduced transaction times by over 60%. - Authored a series of blockchain development best practices that were adopted company-wi
  • S
    Full Stack / Blockchain Developer
    SWIF
    Jul 2017 - Mar 2020 (2 years 9 months)
    - Orchestrated the design and deployment of scalable microservices architecture using Golang, significantly enhancing system robustness and maintainability for our enterprise-grade software solutions. - Led the development of responsive, user-centric web interfaces utilizing Node.js, React.js, and TailwindCSS, achieving a marked increase in user satisfaction and engagement metrics. - Oversaw the integration of the MERN Stack in the creation of high-performance web applications, resulting in streamlined development workflows and optimized operational efficiency. - Implemented a modular and scalable CSS architecture using BEM (Block Element Modifier) methodology, reducing CSS file size by 40% and making maintenance easier for future developer
Education verified_user 0% verified
  • University of Toronto
    Bachelor's Degree
    University of Toronto
    Sep 2012 - Jun 2017 (4 years 10 months)
Projects verified_user 0% verified
  • P
    Polkapets (NFT Minting & Staking)
    Aug 2020 - May 2021 (10 months)
    - Interacting web application with Ethereum Blockchain using Web3.js API - Designed and implemented the web application with React.js - Augmenting existing solutions to leverage Blockchain principles  - Creating, compiling, migrating, testing and debugging smart contracts using the hardhat - Coding smart contracts with solidity programming