André Defrémont
Founder & Senior Full-Stack Engineer at Amachains
French Guiana, France
Summary
👤
Senior🎓
Top SchoolAndré Defrémont is a Full Stack Engineer with over 10 years of experience building scalable web and blockchain systems from Brazil’s Amazon region. He combines hands-on frontend and backend expertise (React, Vue, Node, MongoDB) with production-grade Web3 work—authoring smart contracts in Solidity and operating Hyperledger Fabric networks for national research and sustainability projects. As CIO at Amachains he led development of a Web3 platform for verifiable carbon credits, bridging cloud-native deployments (AWS, Kubernetes) with decentralized ledgers. At RNP he applies blockchain engineering to research and education infrastructure, showing an uncommon mix of academic rigor (master’s research in Computer Science focused on blockchain) and startup delivery. Comfortable across languages (Go, Python, Solidity) and platforms, he moves fluidly between PWAs, enterprise blockchain, and legacy system modernization. Based in Belém, he brings regional perspective to global Web3 challenges and a track record of turning complex, auditable requirements into production solutions.
10 years of coding experience
9 years of employment as a software developer
Master's Degree in Computer Science Blockchain - Computer Systems Networking and Telecommunications, Master's Degree in Computer Science Blockchain - Computer Systems Networking and Telecommunications at Universidade Federal do Pará
Portuguese, English, French
Stackoverflow
63reputation
6kreached
7answers
8questions
Github Skills (23)
responsive9
jekyll9
hyperledger-composer9
backend8
jekyll-theme8
tailwindcss8
github-pages8
static-site-generator7
brasil7
frontend7
code-injection6
database6
angular6
database-backups6
blockchain6
Programming languages (6)
Github contributions (5)
defremont/dasp-composed
Jan 2019 - Jun 2019
Contributions:105 commits in 5 months
defremont/ionic-app
Jan 2020 - Jul 2025
Mobile App for a gym built on Ionic 4.
Contributions:11 pushes, 1 branch in 5 years 7 months
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