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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.
Engineering solutions from
the heart of the Amazon
A dedicated software engineer with over a decade of experience building scalable, production-ready applications and enterprise blockchain solutions.
With a Master's degree in Computer Science focused on blockchain systems from UFPA, I lead teams using Agile methodologies and deliver value through CI/CD pipelines, modern web technologies, and distributed systems architecture.
Belém, Pará, Brazil
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
Professional Journey
CIO & Full Stack Engineer
Amachains Startup
March 2020 - Present
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.
Blockchain Software Engineer
RNP (National Research Network)
April 2024 - Present
Building and maintaining Hyperledger-based blockchain networks (Fabric, Besu, Bevel) for Brazil's national research and education infrastructure using Kubernetes, Helm, and Go.
Master's in Computer Science
UFPA - Blockchain Systems
2021 - 2023
Specialized in permissioned blockchain networks, Hyperledger Fabric, and distributed systems architecture.
Full Stack Software Engineer
Equilibrium Web
July 2019 - March 2020
Developed and maintained AngularJS applications. Optimized Java legacy systems for improved performance and scalability.
Full Stack Software Engineer
XIFIX Tecnologia
April 2018 - July 2019
Enhanced React.js and Node.js web applications, C# systems, and PHP websites for communication management and marketing platforms.
Web Software Engineer
Federal University of Pará (UFPA)
January 2017 - January 2018
Developed and maintained Joomla websites using CSS, HTML, JavaScript, and PostgreSQL for academic programs and community engagement.
Software Engineer
XIFIX Tecnologia
June 2012 - July 2016
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.
Featured Work
Production-ready solutions demonstrating expertise in full-stack development, blockchain systems, and AI integration.
Carbon Credit Platform
Enterprise Web3 platform for carbon credit management with Hyperledger blockchain audit trails, GHG Protocol compliance, and Kubernetes orchestration.
Latest Articles
Let's engineer
something great
Open to software engineering contracts, blockchain consulting, enterprise architecture, and innovative technology partnerships.
adcoderio@gmail.com