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Software Engineer

André Defrémont

10+ years figuring out how to make things work — web apps, distributed systems, cloud infrastructure. Based in the Amazon.

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10+

Years

90+

Projects

380K+

Lines of Code

2.8K

Commits

// about

Building things from
the heart of the Amazon

A Software Engineer who likes to understand problems before writing code. Over a decade building web applications and distributed systems. Currently CIO @ Amachains.

M.Sc. in Computer Science from UFPA. 2,879+ commits across 90+ projects — most of them solving real problems for real people. I like shipping things that actually work.

// based_in

Belém, Pará — Brazil

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

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

Blockchain & Web3

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

API Integrations

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

// journey

Professional Journey

2020 — Present

Amachains

CIO & Full Stack Engineer

Built the platform for carbon credit management from scratch — PWAs with Vue.js, React.js, MERN stack. Managing AWS and Kubernetes deployments.

2024 — Feb 2026

RNP

Blockchain Software Engineer

Built and maintained Hyperledger-based networks for Brazil's national research and education infrastructure. 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