dcoder.
Software Engineer & Blockchain Architect
André Defrémont
Transforming complex challenges into elegant, production-ready solutions. 12+ 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 & Blockchain Architect with over a decade of experience building scalable, production-ready applications and enterprise blockchain solutions. Currently serving as CIO @ Amachains and Researcher @ RNP.
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.
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
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 — Present
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
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.
Featured Work
Production-ready solutions demonstrating expertise in full-stack development, blockchain systems, and AI integration.
Latest Articles
Let's engineer
something great.
Open to software engineering contracts, blockchain consulting, enterprise architecture, and innovative technology partnerships.
adcoderio@gmail.com