Full Stack Software Engineer & Smart Contract Engineer
Yosua
Surianto
Known as Dracoo. A versatile Informatics student engineering products across web (Web2 and Web3), applications, and games, one storm at a time.
About
I am Yosua Surianto, known as Dracoo. I am an Informatics student working across two sides of the same craft: Full Stack Development and Web3 Smart Contract Engineering.
Day to day, that means building complete Next.js and TypeScript products on one hand, and writing and testing on-chain smart contracts on the other. I care about code that is clean enough to hand off, fast enough to feel instant, and correct enough to trust with real transactions.
Full Stack Development
Next.js, React and TypeScript products, from interface down to the API and database.
Web3 & Smart Contracts
On-chain logic and decentralized application development across multiple networks.
Stack
Frontend
Backend
Web3
Tools
Projects
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Decentralized Betting PlatformPolySui
A high-performance decentralized betting platform built on the SUI Network to solve the opacity of traditional betting. It leverages Move smart contracts to ensure transparent, low-latency, and fully verifiable on-chain transactions without middlemen.
HydraFit
A comprehensive health and fitness platform tailored for seamless BMI and routine management. Engineered from scratch using Native PHP and Vanilla JS, featuring real-time data visualization, secure OTP authentication, and cloud-optimized storage
Decentralized Lottery ProtocolSui Raffle
A cost-efficient decentralized lottery protocol built on the Sui Network. It leverages native VRF (sui::random) for secure, oracle-less randomness and utilizes O(1) complexity logic to maintain stable gas fees during winner extraction.
Certifications
Let's build something
Open to Full Stack and Web3 work, freelance or full-time. Reach out directly, or find me on any of the platforms alongside.
2026 Yosua Surianto / Dracoo