About me
I lead the AI Agent platform at Qiji Zhifeng (奇绩智峰) in Shanghai. We build North Agent Cloud, a platform for building, deploying, and running AI agents: scheduling, sandbox isolation, egress control, credential custody, elastic scaling, and end-to-end tracing. It runs in production across several deployments.
I do most of my engineering through coding agents, so I built the tooling to do it at scale. Agent Team is a control plane I built solo that runs 5 to 10 Claude Code / Codex agents in parallel (20+ at peak) across machines, each in its own git worktree and Kubernetes namespace. Each agent has a status board, an activity timeline, and message delivery with receipts; the platform patrols them every minute, and custom Stop hooks catch specific failure modes, for example an agent that says it will keep going and then ends its turn. Nothing is called done until a second agent has tried to prove it broken. In the platform's first seven weeks, my merged pull requests rose from about 32 to about 212 a month.
Before that I was an AI Scientist at Devz AI in the US, building enterprise agents, a general-purpose web agent, and fine-tuned domain LLMs.
What I'm doing
-
Agent Infrastructure
Runtime, sandbox, and gateway as separate layers; warm sandbox pools, an egress firewall, and credential isolation for production agents.
-
Agent Observability & Reliability
Metrics and alerting for agent workloads, and guardrails built from the failure modes I hit running agents in parallel.
-
Agentic Coding at Scale
Running fleets of Claude Code / Codex agents in parallel, with isolation, message routing, patrol, and adversarial verification.
-
LLM Post-training & Evaluation
Fine-tuning domain LLMs (LoRA family) and evaluating LLMs on code tasks.