Hello there!

Accomplished a senior blockchain developer with 4+ years of hands-on experience in delivering top-notch decentralized applications and troubleshooting for many startups and firms. Focused on creating collaborative efforts between support and engineering teams to implement system or product level changes to benefit end-users. Eager to support building an impeccable online reputation by providing high-level customer support for startups and firms. With in-depth knowledge of Artificial Intelligence, implemented deep learning to forecast Cryptocurrency price and made market-competitive tokens.

About me.

education

  • Saint Mary's University, Canada
    Bechelor's in Computer Science
    Sep, 2012 - Apr, 2016
    Currently pursuing my Master's in Computer Science, while specializing in the field of Artificial Intelligence and Machine Learning.
    Artificial IntelligenceSoftware EngineeringAlgorithmsComputer VisionMusic Data MiningOS

experiences

  • Blockchain smart contract developer, Maxos, Boston
    Lead smart contract developer
    Nov, 2021 - May, 2022
    Implemented Smart contracts to protocols for new DeFi financial services(launch Pool).
    BlockchainSmart contractsSolidityWeb3.jsReact.jsTypescript

  • Senior backend and smart contract developer, Prime Protocol, New York State
    Backend & Smart contracts & Devops
    Nov 2020 — Sept 2021
    Built decentralized exchange and decentralized finance contract with Rust language. Contributed to an 23% rise in subscribers for 8months by enhancing the player experience on all supported clientplatforms.
    Smart contractsRustAnchorTypescriptNode.jsNest.jsCI/CD

  • Senior blcokchain developer, Konfidio, Berlin
    Full stack developer
    Sept 2019 — Oct 2020
    Developed on-chain &off-chain governance protocol with MERCER-based tokens sothat users are able to make decisions of adding new features and modifying current functionalities of theplatform. Built and launched Smart Contracts for Genesis NFT,Pode and Marketplace aswell. Prefer to useERC-721 based NFT rather than ERC- 1155.Worked on a BlockChain app that utilizes the Ethereum BlockChain for the creation of a supply chain management system interface using React.js
    SolidityReact.jsWeb3.jsRedux.jsTailwind CSS

  • Senior Full stack developer(Typescript&Node.js),
    Frontend & Backend Role
    May 2018 — Aug 2019
    Designed high-level and low-level design to theproject. Developed with Vue.js and Nest.js including typescript and docker.
    Vue.jsNest.jsPostgreSQLDockerTestingAWS

  • Full stack developer(React, Node.js), ELDERLYINSTRUMENTS
    Frontend & Backend Role
    Feb 2017 — Apr 2018
    Developed E-commerce platform using React for frontend and NodeJS for backend. Developed ResponsiveWebsites that could be served by desktop, Tablets and mobile devices usingReact.js.
    React.jsReduxSCSS

Skills.

Languages
C, C++, Java, Python, Javascript, TypeScript, SQL, NoSQL, Ruby, Solidity, Rust, Go/Golang
Data frameworks
Keras, Numpy, Pandas, OpenCV, SciPy, Sklearn, LibROSA, Pillow
Frontend Frameworks
React, Angular, Vue, Next.js, Nuxt.js, HTML, CSS, Javascript
Backend technologies
Node.js, Python, Nest.js, Express.js, Django, Flask, Typescript, , Rust, Anchor, Substrate, Go/Golang
Blockchain technologies
Smart contracts, Solidity, Rust, Ether.js, Web3.js, Typescript, Javascript, Hardhat/Truffle/Remix, Wax
Databases
MongoDB, MySQL, OracleSQL, Neo4j, PostgreSQL
operating systems & tools
Ubuntu, Linux, Windows, Agile, Scrum, JIRA, Heroku, Firebase, AWS S3
Portfolio.

Card image cap
Olympus DAO Fork
SolidityTypescriptReactTailwind CSSGrapQLRedux

Templar is the first decentralized reserve currency protocol available on the Binance Smart Chain based o...

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Metaverse DAO
ReactSolidityNFTWeb3.jsGit

MetaReserve is a Decentralized Reserve Currency Protocol that aims to take the lead in setting a new benc...

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Leda NFT Marketplace
ReactTailwind CSSTypescriptEVM networkSolidityWeb3.js

Leda is an NFT marketplace, that uses the Jupiter blockchain. A Non-Fungible Token (NFT) (or called Singl...

Recommendations.
"In his internship, Xin John has demonstrated excellent learning ability, and with a dedicated, task oriented approach, he was able to complete his assignment ahead of time."
– Dr. Mervyn G. Maistry, CEO, konfidio, Berlin, Germany
"I feel his budding leadership abilities will become even more effective in a diverse and challenging environment."
– Mogi Kenichi, CTO, ZEROBILLBANK, Chiyoda City, Japan
"He has gained great knowledge and experience of Blockchain, and has learned ot develop the application keeping in mind the client's perpective and also making it creative."
– Ashok Sanghani, CTO, Bitcoin Diamond,, Singapore
"During the course of his employment we have found him to be a self-started who was motivated, duty bound and a highly commited team player."
– Raymond FEGington, Director, Universe, France
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