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Software Engineer & Blockchain Architect

André Defrémont

Transforming complex challenges into elegant, production-ready solutions. 10+ years engineering scalable applications, enterprise blockchain systems, and AI-powered tools from the heart of the Amazon.

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10+

Years

90+

Projects

380K+

Lines of Code

2.8K

Commits

// about

Engineering solutions from
the heart of the Amazon

A dedicated Software Engineer & Blockchain Architect with over a decade of experience building scalable, production-ready applications and enterprise blockchain solutions. Currently serving as CIO @ Amachains.

With a Master of Science in Computer Science focused on blockchain systems from UFPA, I bring 2,879+ commits across 90+ projects and 380K+ lines of code across GitHub and GitLab. I lead teams using Agile methodologies and deliver value through CI/CD pipelines, modern web technologies, and distributed systems architecture.

// based_in

Belém, Pará — Brazil

M.Sc. Computer Science EN / PT / FR EU Citizen Remote Worldwide

Blockchain & Web3

Hyperledger Fabric, Ethereum, Solidity, Smart Contracts, IPFS, Besu, Bevel

Full-Stack Engineering

TypeScript, React, Vue.js, Node.js, Python, Next.js, Go, Java Spring Boot

Cloud & DevOps

Kubernetes, Docker, AWS, Helm, CI/CD pipelines, Microservices architecture

AI & Machine Learning

OpenAI, Anthropic Claude, Google Gemini APIs, Real-time analytics, Data pipelines

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Professional Journey

2020 — Present

Amachains

CIO & Full Stack Engineer

Leading Web3 platform development for carbon credit management. Built production PWAs with Vue.js, React.js, MERN stack, and smart contracts on Ethereum/Hyperledger. Managing WordPress sites, AWS, and Kubernetes deployments.

2024 — Feb 2026

RNP

Blockchain Software Engineer

Building and maintaining Hyperledger-based blockchain networks (Fabric, Besu, Bevel) for Brazil's national research and education infrastructure using Kubernetes, Helm, and Go.

2021 — 2023

UFPA

Master's in Computer Science — UFPA

Specialized in permissioned blockchain networks, Hyperledger Fabric, and distributed systems architecture.

2019 — 2020

Equilibrium Web

Full Stack Software Engineer

Developed and maintained AngularJS applications. Optimized Java legacy systems for improved performance and scalability.

2018 — 2019

XIFIX Tecnologia

Full Stack Software Engineer

Enhanced React.js and Node.js web applications, C# systems, and PHP websites for communication management and marketing platforms.

2017 — 2018

UFPA

Web Software Engineer

Developed and maintained Joomla websites using CSS, HTML, JavaScript, and PostgreSQL for academic programs and community engagement.

2013 — 2017

UFPA

Bachelor in Information Systems

Universidade Federal do Pará (UFPA). Computer Networks & Telecommunications specialization. Thesis on Blockchain technology.

2012 — 2016

XIFIX Tecnologia

Software Engineer

Progressed from technical support to full-stack development. Built and maintained React.js, Node.js, C#, and PHP systems for web platforms, sales, and marketing ecosystems.

// work