Freelancer profile translated to English.

Description

Looking for an engineer who can turn your ideas into robust and scalable digital products? I design and develop full-stack web applications, from prototype to production, using React.js, Vue.js, Node.js, TypeScript, AWS, and Kubernetes. If your project involves blockchain (Hyperledger Fabric, Ethereum, smart contracts), it's been my specialty for over 5 years.

What I bring to you:

- Performant and scalable applications: PWA, SaaS, marketplaces, management systems

- Blockchain expertise: smart contracts, distributed architectures, tokenization, ESG traceability

- Complete technical cycle vision: architecture, development, cloud deployment, CI/CD

- 10+ years of Agile/Scrum practice in multidisciplinary teams

Typical projects:

- Web3 platforms for carbon credit management

- Full-stack applications (MERN/MEVN) with REST or GraphQL APIs

- Blockchain infrastructures on Kubernetes at a national scale

- Multi-vendor marketplaces with integrated payments

- MVPs ready for funding rounds

What sets me apart: dual profile as engineer and researcher (Master's in Computer Science, specialization in Blockchain & Sustainability), experience in technical leadership (CTO), and the ability to communicate effectively with both business and development teams.

Based in Brazil, available for global remote work. European citizen, open to on-site or hybrid assignments in Europe. Languages: Portuguese (native), English (professional), French and Spanish (basic).

Let's discuss your project →

Languages

Portuguese
Native or bilingual
English
Fluent
French
Conversational
Spanish
Conversational

Workplace preferences

Can work on-site

Lyon (up to 50km)

Amachains
Chief Information Officer & Full-Stack Engineer
March 2020 - Today (6 years and 5 months)
Belem, 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.
Stack: Node.js, React.js, Vue.js, MongoDB, Hyperledger, Ethereum, Solidity, AWS, Kubernetes, Go, Python, Docker
Fullstack Digital Transformation IT Architecture Cloud Integration External API Integration
RNP — National Research and Education Network
Blockchain Software Engineer
April 2024 - March 2026 (1 year and 11 months)
Brasilia, 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
Equilibrium Web
Full-Stack Software Engineer
July 2019 - March 2020 (8 months)
Belem, 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