Hoang Phi Long

Hoang Phi Long (block #0)

Blockchain & AI R&D Engineer · Ha Noi

• Building DeFi infrastructure, wallets, and AI agents.
• 2× IEEE-published · ETH Vietnam 2024 winner · contracts live on 10 EVM chains.

DeFi · AI · Rust · TypeScript · Solidity

• GitHub
• LinkedIn

HUST (2018 – 2023)

Hanoi University of Science and Technology — Electronics & Telecommunications

• School of Electronics and Telecommunications, CPA 3.18/4.
• Published 2 IEEE papers on Vietnamese emotion recognition (PhoBERT).

Electronics · Telecom · PhoBERT · Research

• NICS 2022 paper
• ATiGB 2023 paper

First Blocks (2021 – 2022)

Fagolabs · DevZone Lab — Software Engineer

• Portals for network & security devices; SEO landing pages (NuxtJS + Strapi).
• Fashion & pharmacy e-commerce builds (NextJS, ExpressJS, MySQL, AWS).
• Mentored a university firmware contest.

NuxtJS · NextJS · WordPress · AWS · MySQL

Airdata Technology (2023 – 2025)

Software Engineer — aviation systems

• Flight management, accounting APIs, automated execution cronjobs.
• Integrated Vietnam Airlines, Amadeus, Sabre, Jetstar, Scoot, AirAsia.
• Retail website in VueJS.

Aviation · APIs · VueJS · Integrations

Krystal — Kyber Group (2022 – now)

R&D Software Engineer — DeFi at scale

• Krystal Wallet Extension — Metamask-class wallet (React, Manifest v2).
• Krystal DApp: exchange, liquidity management & automation across EVM chains.
• Krystal Vault + V4Utils smart contracts live on up to 10 EVM chains.
• Agentic system on ElizaOS; ILO platform; liquid.fun meme launchpad.
• Landing page scoring 100/100 SEO, a11y & best practices.

Solidity · Foundry · React · Go · GCP · ElizaOS

• Krystal

Mining the Future (next block)

Open to hard problems in DeFi × AI

• Shipping DeFi infra on 10 EVM chains at Krystal — hunting the next hard problem in DeFi × AI.
• This block is still empty. Let's mine it together.

AI Agents · DeFi · Open to work

• Email me
• Résumé
• GitHub
• LinkedIn

DeFi Galaxy

• Krystal Vault — Asset vault interacting with LP/staking strategies on 7 EVM chains. (Solidity · Foundry) Krystal Vault link
• V4Utils — Uniswap V4 liquidity position tooling on 10 EVM chains (V3 sibling is public). (Solidity · Uniswap V4) V4Utils link
• NFT Subscription — Subscriptions issued as NFTs on 2 EVM chains. (Solidity · Hardhat)
• liquid.fun — Meme launchpad with liquidity mechanisms. (NextJS)
• Krystal ILO — Initial Liquidity Offering platform. (NextJS)
• L2 Flash Loan Aggregator — Cross-L2 flash loan routing. (Foundry · Rust · React)

AI Galaxy

• Krystal Agentic System — Autonomous DeFi agents on ElizaOS. (ElizaOS · TypeScript)
• Support Chatbot AaaS — RAG customer-support bots as a service. (Next.js · tRPC · PostgreSQL)
• Smale — Gamified learning app with AI-generated roadmaps. (Flutter · Go)

Bot Swarm

• Prediction-market Arbitrage — Cross-platform arbitrage engine. (Rust)
• DEX Arb Engine — Multi-strategy DeFi arbitrage. (Foundry · Rust)
• Polymarket Copy-trader — Real-time copy trading bot. (Rust)
• Binance Bot — Trading bot with strategy backtesting. (Rust)
• Affiliate Orchestrator — TikTok/YouTube/Facebook automation for VN market. (Node · FastAPI)

Open Source

• Hearable — Real-time on-device captioning & speaker ID for Deaf and hard-of-hearing users. (Rust · Homebrew) Hearable link
• GENESIS — this site — The living-chain portfolio you are flying through right now. (NextJS · R3F · GSAP)

Awards & Publications

• ETH Vietnam 2024 — NFT Wallet — Silver Winner Polygon Technical · Winner Polygon non-technical · Top 1 DoraHacks. ERC-6551 NFT-linked smart wallet extension. (ERC-6551 · Award)
• IEEE × 2 — PhoBERT Emotion Recognition — NICS 2022 & ATiGB 2023 publications on Vietnamese emotion recognition. (NLP · IEEE) IEEE × 2 — PhoBERT Emotion Recognition link