Professional Summary
Senior Software Engineer with 13+ years building and shipping full-stack web applications and distributed systems (React.js, Vue.js, Node.js, MERN, AWS, Kubernetes). Proven record delivering national-scale blockchain infrastructure and production PWAs end-to-end — from architecture and smart contracts to Kubernetes deployment and long-term reliability. Ships fast without cutting corners by pairing strong engineering fundamentals with AI-augmented development workflows. Comfortable owning projects across Agile teams and CI/CD pipelines. French & Brazilian (EU) citizen, fluent English (B2+), actively studying toward French B2 — available for relocation and fully remote work.
Core Competencies
Languages
TypeScript, JavaScript, Python, Go, Solidity, Java, C#, PHP, Kotlin
Frontend
React.js, Vue.js, Next.js, Nest.js, Angular, Ionic
Backend
Node.js, Express.js, FastAPI, Java Spring Boot
Cloud & DevOps
AWS, Kubernetes, Docker, Helm, CI/CD, GitLab CI
Databases
MongoDB, PostgreSQL, CouchDB
Blockchain
Hyperledger Fabric, Ethereum, Smart Contracts, Besu, Bevel
Methodologies
Agile, Scrum, Kanban, TDD, SOLID, Clean Architecture
APIs
OpenAI, Anthropic Claude, Google Gemini, REST, GraphQL
Professional Experience
Founder & Senior Full-Stack Engineer
2025 — Present
Dcoder — Independent Software Studio · Belém, PA, Brazil (Remote)
- Design, build and maintain full-stack web apps, business systems and internal tools for a recurring portfolio of business clients (construction, property management, marketplaces, retail) — most return month over month for new work.
- Built and maintain Enge10's three systems — Finance, occupational health & safety, and time tracking. The Finance system (app.enge10.online) is the most used system in the portfolio, running daily.
- Delivered a boat-rental marketplace (Canoe), a task/orders module (MisterTask), a condominium concierge assistant (Concierge) and WordPress sites — full lifecycle from spec to deployment and ongoing support.
- Ship 30–50% faster with consistent quality by integrating AI coding tools (Claude, GPT, Gemini) into the workflow, keeping clients fully transparent through shared Trello boards.
Stack: Node.js, TypeScript, Python, PostgreSQL, MongoDB, React.js, Next.js, Vue.js, Docker, LLM APIs (Claude/GPT/Gemini), n8n, WordPress
Chief Information Officer & Full-Stack Engineer
Mar 2020 — Present
Amachains · Belém, PA, Brazil
- Architected and built production-ready PWAs from scratch using Vue.js, React.js, and the MERN stack, delivering seamless user experiences and reliable performance.
- Developed smart contracts on Ethereum and Hyperledger Fabric for carbon credit management and sustainability projects.
- Led the development of a Web3 platform enabling transparent carbon credit lifecycle management — from emissions tracking to carbon offsetting through verifiable digital records.
- Managed cloud infrastructure deployments on AWS and Kubernetes, integrating web and blockchain technologies.
- Own technical direction as CIO — architecture decisions, roadmap, and coordinating delivery across a small engineering team and external stakeholders.
Stack: Node.js, React.js, Vue.js, MongoDB, Hyperledger, Ethereum, Solidity, AWS, Kubernetes, Go, Python, Docker
Blockchain Software Engineer
Apr 2024 — Feb 2026
RNP — National Research and Education Network · Brasília, DF, Brazil
- Build and maintain Hyperledger-based blockchain networks supporting national-scale research, education, and Web3 innovation across Brazil.
- Design scalable and secure distributed ledger solutions using Fabric, Besu, Bevel, and Ethereum, deployed on Kubernetes with Helm charts.
- Provide robust blockchain infrastructure for academic and research institutions nationwide.
Stack: Hyperledger Fabric, Besu, Bevel, Ethereum, Solidity, Go, Kubernetes, Helm, Web3
Full-Stack Software Engineer
Jul 2019 — Mar 2020
Equilibrium Web · Belém, PA, Brazil
- Developed scalable, user-centric digital solutions tailored to diverse business requirements.
- Enhanced AngularJS applications and optimized a Java legacy system, improving reliability and performance.
Stack: Node.js, AngularJS, Java
Full-Stack Software Engineer
Apr 2018 — Jul 2019
XIFIX Tecnologia · Belém, PA, Brazil
- Enhanced and maintained React.js and Node.js web applications powering content management and marketing platforms.
- Maintained C# systems and PHP websites, ensuring robustness aligned with evolving business needs.
Stack: React.js, Node.js, C#, PHP
Web Software Engineer
Jan 2017 — Jan 2018
Universidade Federal do Pará (UFPA) · Belém, PA, Brazil
- Developed and maintained Joomla-based websites supporting academic programs and community engagement.
Stack: CSS, HTML, JavaScript, Joomla, PostgreSQL
Software Engineer
Jun 2012 — Jul 2016
XIFIX Tecnologia · Belém, PA, Brazil
- Comprehensive technical support with progressive transition to active software development in React.js, Node.js, C#, and PHP.
- Contributed to application improvements and feature development, building a strong foundation in full-stack engineering.
Stack: Node.js, React.js, C#, PHP
Education
M.Sc. in Computer Science
2021 — 2023
Universidade Federal do Pará (UFPA)
Computer Systems Networking & Telecommunications · Focus: Blockchain & Sustainability
B.Sc. in Information Systems
2013 — 2017
Universidade Federal do Pará (UFPA)
Computer Systems Networking & Telecommunications · Thesis on Blockchain Technology
Languages
Portuguese — Native
English — Professional Working Proficiency (B2+)
French — A2, actively studying toward B2 (DELF target 2027) · EU citizen
Spanish — Elementary Proficiency
Selected Projects
Enge10 — finance, health & safety and time-tracking system in daily use · ORDE — carbon-footprint traceability platform · Canoe — boat-rental marketplace · Rede Capanema — multi-vendor local marketplace · MisterTask — orders & task management module · Concierge — AI concierge for condominiums · ChatMood — real-time AI chat sentiment analysis (Twitch)