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Award-Winning Blockchain Developer

1st Place CoinGecko MCP Hackathon 2025. 2nd Place BlockDev ID Hackathon. Multiple international hackathon wins in Web3 and DeFi.

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About

Muhammad Ramadhani (Ramadhvni) is a blockchain developer and full-stack engineer with 5+ years of experience in software development and 2+ years specializing in Web3. Currently serving as Full Stack Engineer at Holdex Venture Studio and Arbitrum Foundation Ambassador.

With expertise spanning smart contract development (Solidity, Rust, Move), full-stack systems (React, Vue, Node.js), and blockchain validator operations, Muhammad builds secure, high-performance solutions across dApps, DeFi protocols, and validator infrastructure.

Featured Projects

🏆 GeckoPilot AI

AI-powered crypto trading assistant. 1st Place CoinGecko MCP Hackathon 2025.

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🥈 Waffle

Decentralized reputation layer for Web3. 2nd Place BlockDev ID Hackathon 2025.

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💰 Seflow

Automated salary splitting on Flow blockchain with time-locked rewards.

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🎓 Credura

On-chain educational certificates using ERC-721 NFTs.

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View all 15+ projects →

Technical Skills

Solidity Rust TypeScript React Next.js Vue.js Node.js Foundry Hardhat Wagmi Viem RainbowKit DeFi NFTs Smart Contracts IPFS Docker PostgreSQL

Achievements

1st Place — CoinGecko MCP Hackathon 2025 (Global, AI × Blockchain)
2nd Place — BlockDev ID Mini Hackathon 2025 (Web3 Infrastructure)
Arbitrum Foundation Ambassador — Growing Indonesian Web3 community
30,000+ Community Members — Built Happy Cuan Airdrop community
50+ Production PRs — Delivered to enterprise blockchain projects
15+ Deployed dApps — Across Ethereum, Solana, Flow, Arbitrum

Experience

Full Stack Engineer, Web3 — Holdex Venture Studio (Nov 2025 – Present)

Ambassador — Arbitrum Foundation (Sep 2025 – Present)

Software Development Engineer — PT Samuel Kripto Indonesia (Sep 2023 – Oct 2025)

Blockchain Validator — CrossFi Chain & Redbelly Network (2023 – 2025)

Ready to build something amazing?

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