Building the decentralized future of the web
I'm a blockchain developer specializing in creating secure, efficient, and innovative web3 applications. From smart contracts to decentralized applications, I bring your blockchain vision to life.
Blockchain Innovator & Web3 Developer
I'm a passionate blockchain developer with expertise in building decentralized applications and smart contracts. With a deep understanding of blockchain technologies and web development, I create innovative solutions that bridge the gap between traditional web and the decentralized future.
My mission is to make blockchain technology accessible and useful through intuitive interfaces and robust backend systems. I specialize in Ethereum development, but I'm proficient with multiple blockchain platforms and constantly exploring new technologies in this rapidly evolving space.
john3
My Expertise
Smart Contract Development
Building secure and efficient smart contracts on Ethereum and other blockchains
DeFi Protocols
Creating decentralized finance solutions with focus on security and scalability
dApp Architecture
Designing and implementing full-stack decentralized applications
Blockchain Integration
Connecting traditional systems with blockchain networks
Web3 Frontend
Building intuitive interfaces for blockchain applications
Blockchain Development
Create your own blockchain with your own protocol
Professional Journey
Work Experience
Penetration Tester
2025 - 2024NOX5 Offsec – Goiânia/GO
Conducted penetration tests in cooperative sector companies, identifying vulnerabilities and proposing improvements. Drafted detailed technical reports focused on security and risk mitigation. Collaborated with IT teams to implement security practices.
Frontend Developer
2025 - 2024CRUZE MODELS – Switzerland
Developed a TikTok-inspired platform for adult content, emphasizing innovation and usability. Delivered the project under challenging deadlines, resulting in high valuation and community engagement. Responsible for creating attractive and functional interfaces.
Senior Developer
2025 - 2024WAP Tecnologia – São Paulo/SP
Developed and maintained WordPress solutions, including site configurations and optimizations. Created custom templates ensuring high performance and excellent user experience. Provided technical support and integrated with various tools and platforms.
Full Stack Developer
2025 - 2024Centro de Contabilidade – Goiânia/GO
Developed the bidding system for OCB/GO by integrating front-end, back-end, and database components. Managed database maintenance and developed APIs for bid management. Implemented agile methodologies to optimize development processes.
Education
High School Diploma
2021 - 2024Prevest
Completed high school education.
Certifications
A-Z Blockchain
SuperDataScience Team • 2021
Python for Data Science and Machine Learning
Coursera • 2023
Mastering Rust Programming
Udemy • 2023
Advanced TypeScript Programming
Microsoft • 2023
Full-Stack Web Development with Databases
freeCodeCamp • 2023
Technical Skills
Featured Web3 Work
Penetration Testing for Cooperative Sector
Performed penetration tests in cooperative sector companies, identifying vulnerabilities and proposing improvements. Drafted detailed technical reports focused on security and risk mitigation. Collaborated with IT teams to implement security practices.
Let's Build Something Together
Contact Information
I'm currently available for freelance work, collaborations, and interesting projects. Feel free to reach out through any of the channels below.
