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Tadashi
Sato

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About me
I am a blockchain engineer with 6+ years of experience. I am expertise in smart contract development and frontend integration. I am very familiar with programming languages like solidity, rust and C++ and frameworks such as Foundry, Hardhat, Anchor, react.js, next.js, node.js.

Work experience

Saola Labs
July 2024 – November 2025
Job title
Smart Contract Lead Developer & Frontend Integration
Work experience & achievements
- Led the architecture, development, and review of 5 production-grade Solidity smart contracts powering core on-chain features for Ninjalerts, a real-time crypto and NFT analytics dashboard. - Oversaw end-to-end smart contract lifecycle, including design, development, internal auditing, Foundry testing, and deployment to testnet and Mainnet environments. - Coordinated and guided frontend developers in integrating smart contracts with React-based dApps using Ethers.js and Web3.js, improving transaction reliability and UX performance by ~15%. - Implemented gas optimization strategies and conducted systematic unit and fuzz testing, identifying and resolving 10+ vulnerabilities and logic issues prior to release. - Collaborated with product managers and cross-functional teams to translate business logic into secure, scalable contract architectures for NFT and DeFi-related features.

Education

National Institute of Technology, Toyama College
Graduation year: 2017
Level of study
Bachelor
Major / Field of study
Computer Science