Thomas COSIALLS | Portfolio


Hi, I am Thomas Cosialls, a french full-stack engineer and world citizen. I am passionate about learning, exploring, connecting with people and going outside my comfort zone. I am always looking for new challenges, with a particular focus on building in the blockchain and web3 spaces.


  • Ethereum Credit Guild|2024|Front-end dev for a lending & borrowing Defi protocol|
  • The Smurfs' Society™|2023|Front-end, smart contract dev of web3 + NFT experience |
  • The Haughty Mummies|2022|NFT minting app and launch of generative art on Solana|
  • Paralleelium|2022|Smart contract and NFT minting app dev on Ethereum|
  • ZenOption|2021|Full-stack dev for an educational and ecommerce website|
  • City Girl Cooks|2020|Full-stack dev for a lifestyle influencer website|


  • Kleek|Create events where attendees earn for participating|
  • proof2work|Search smart contracts deployed by any wallet address|
  • Myror|Generate direct booking websites for Airbnb in seconds|
  • Knocker|Find small businesses without a website anywhere|
  • Runbnb|Full Property Management System for busy Airbnb hosts|


  • Blockchain Engineer|2022 - |Etherwave Labs|Remote|
  • Co-Founder & CTO|2017 - 2021|Runbnb|Singapore
  • Co-Founder & Developer|2020 - 2022|Myror|Singapore
  • IT Project Manager|2015 - 2016|Primesoft Philippines, Inc|Makati, Philippines
  • SAP Consultant|2014 - 2014|Sanofi|Paris, France|