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Yo HaYH

Yo Ha

Senior Fullstack Developer

€599/day
Paris 14e Arrondissement, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Yo

I am looking for an opportunity in the Blockchain Domain.
Keywords: Golang, Rust/Cosmwasm/Sylvia, Python, JS/TS, Substreams/Indexer, Smartcontract, K8s...

After 10 years of experience in permanent contracts as DEV, DEV Ops, Full-stack.. in various companies such as: MyMedia, Atos, Logic-immo, 1000Mercis, Meetic... with very diverse technologies (I manage everything from Front to Back, from Database to System): Php, Python, ReactJS, AngularJS, Jquery, OnsenUI, Ionic, Mysql, MongoDB, websocket, webRTC, Django, Flask, Nginx, uWsgi, Ubuntu, Gentoo ...

I decided to start my Freelancer life to challenge myself :)

I have already completed several projects for my clients in different domains, here are some examples:
- develop/deploy smart contracts in Solidity, Cosmwasm, develop indexer using Substreams/Cosmwasm...
- develop a mobile app with video call in WebRTC, chat, gif, video record ...
- develop a web platform for fundraising with a marketplace payment system
- develop a website using blockchain/smartcontract for an IDO
- develop a complete platform for video streaming in HLS (~ 20k viewers)
... and several others
  • French

    Native or bilingual

  • English

    Fluent

  • Vietnamese

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Teritori
    Web3/Fullstack
    SOCIAL NETWORKS
    January 2023 - Today (3 years and 5 months)
    Within the core team, I was responsible for:
    - integration of web/app cross platform (React Native, Golang gRPC backend)
    - integration with Web3 client for Ethereum and Cosmos blockchains (TS, Go)
    - NFT smart contracts, marketplace, p2e games ... (Rust, Solidity)
    - implementing the indexer for Ethereum/Cosmos using Substreams(Rust, Go, Postgres)
    - managing backend infra (K8s, scaleway)
  • MetaLabs
    Web3/Fullstack
    SOFTWARE PUBLISHING
    January 2022 - December 2022 (1 year)
    - Develop/deploy P2E games (200k users after 3 weeks) (Moralis, Solidity, ReactJS)
    - Develop Market Market BOT for DEX
    - Give Blockchain courses for students
    - Develop NFT markets (Solidity)
    - Deploy NFTs collections (Solana, metaplex)
  • 1000Mercis
    Senior DevOps
    TECH
    January 2014 - December 2017 (4 years)
    Paris, France

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Education

  • Master 2 in Networks and Security
    Paris 6 - Pierre et Marie Curie
    2007

Skill set

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