AI Agent & Distributed Systems Engineer · Singapore
Multi-agent systems · Context engineering · Cross-chain protocols
junmtan.dev · junmtan.eth@gmail.com · @chadxeth
Senior Engineer @ Ant International — Whale Platform 24/7 real-time cross-chain settlement infrastructure processing $600B+/yr on Hyperledger Besu. Founded the Singapore engineering practice as the first hire; team has grown 3x to 30+.
- 4-agent runtime architecture (Supervisor, Application, Blockchain, Database) using ReAct reasoning across 18 purpose-built tools, routing alarms by failure domain
- Dual-layer memory — short-term session memory + long-term semantic memory that learns from resolved incidents, enabling pattern recognition across historical alarms within bounded LLM context
- Hybrid RAG investigation — ZSearch vector store with multi-recall, deduplication, and reranking for contextual playbooks per alarm type
- Evaluation framework — tracking classification accuracy, mean time to root cause, false positive rate, resolution quality; weekly automated regression vs historical baselines
- Verification-first design — autonomous read-only investigation, sandboxed action paths, human-in-the-loop confirmation for state-changing operations
- Championed Claude Code adoption across 30+ engineers; compressed Bettr Settlement Token contract delivery from 22d → 4d
- Owner of all 4 smart contract repositories — led security audits with Certik, SlowMist, Deloitte
- Cross-chain bridge operations (Chainlink CCIP, Circle CCTP, Circle Gateway) across Ethereum, Solana, Hyperledger Besu
- Production Hyperledger Besu validator + RPC nodes
- Developed Bettr Settlement Token — featured in Forbes
- Cross-Geo Technical Liaison — daily Mandarin technical syncs with engineering teams in China
- Author of Draft EIP-7963 (under review) — Oracle-Permissioned ERC-20 with ZK-Verified ISO 20022 Payment Instructions
| Event | Project | Highlights |
|---|---|---|
| Bolt.new Hackathon Jul 2025 | Chrona AI | 5-agent system on OpenAI Agents SDK — conversational workflow automation with real-time agent streaming |
| Event | Project | Prizes |
|---|---|---|
| ETHGlobal Singapore 2024 | Trend | 🥇 Sign Protocol Best Overall (best project across all tracks) + Most Creative Schema |
| ETHGlobal Tokyo 2023 | ZKredentials | 4 prizes at one event: Gnosis Chain 1st · Push Protocol 1st · Worldcoin Best Governance · Taiko 2nd |
| ETHGlobal ScalingEthereum 2023 | Multinate | 🏆 Hyperlane Best Use of Warp Routes |
| ETH Seoul 2022 | GAAVE | 🥇 Public Goods Track Winner |
| ETHGlobal San Francisco 2022 | PreshMail | 🏆 XMTP Runner-Up · Push Protocol Runner-Up |
| ETH Denver 2023 | BluebirdSwap | 🏆 The Graph Best New Subgraphs |
| ETHGlobal Bangkok 2024 | AirdropX | Worldcoin Pool Prize |
Also: ScalingX — The Hunt for X Winner · Polygon APAC DevX Hackathon Winner
AI & Agents: OpenAI Agents SDK · LangGraph · SOFA AI (AgentClient, AMem, RetrieveEngine) · multi-agent orchestration · context engineering · RAG pipelines · evaluation frameworks · MCP server design · ReAct reasoning · prompt engineering · sandboxed execution environments · Claude Code · Cursor
Blockchain: Solidity · Rust (Solana/Anchor) · Hyperledger Besu · Hardhat · Foundry · Ethers.js · viem · The Graph · OpenZeppelin · Chainlink CCIP · Circle CCTP
Backend & Languages: TypeScript · Python · Bash · Java (Spring/SOFABoot) · Go · Node.js · Express
Data & Infra: PostgreSQL · MySQL · OceanBase · Redis · ZSearch (vector store) · Docker · Kubernetes · AWS · Alibaba Cloud · Jenkins · Prometheus · Grafana