mateussatoshi

Worked on over 100 cryptocurrency and blockchain projects from 2020 to 2025. Currently CEO of my own programming and Web3 services startup, helping teams launch and scale decentralized solutions.
Web Developer since 2015 with strong expertise in HTML5, CSS3, JavaScript, Bootstrap, jQuery, PHP, MySQL, AJAX, and SEO. Solid experience in Solidity for Ethereum smart contracts. Background in Information Security as a bug hunter since 2017, identifying vulnerabilities and securing decentralized applications.

I also have practical exposure to Solana development, including basic Rust program creation, @solana/web3.js integrations for dApps and wallets (Phantom, Solflare), transaction flows, and presale/token mechanics. Achieved primarily through vibe coding workflows with AI assistants for quick generation, testing, and iteration (with limited hands-on in full production ICO/presale setups and deeper Rust complexity). My Solana skills are advancing fast, rounding out my core expertise in Ethereum/Solidity.

Open to collaborations on Web3 projects, presales/ICOs, smart contract audits, or full-stack blockchain development.