> ## Documentation Index
> Fetch the complete documentation index at: https://dingguoliang.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# About Me

> Ding Guoliang, AI Application Engineer. Edge voice-agent platform and engineering philosophy.

## Introduction

I am **Ding Guoliang**, an AI Application Engineer. Over the past half year my main line has been an **edge voice-agent control platform**: Vue + Java control plane for devices, agents, models, knowledge, and team permissions; Python on-device WebSocket speech sessions — listen, recognize, reason, speak, plus tools and on-demand retrieval. Functionally closed and entering launch.

I cover the full loop and care about systems you can operate, interrupt cleanly, and degrade safely — not demos only. Desensitized write-up: [Voice Agent Platform](/en/projects/voice-agent-platform).

***

## Path

```text theme={null}
Java backend
  → AI application engineering (control plane + voice agent)
    → Deeper agent-system and runtime questions
```

Backend habits still apply: auth, permissions, isolation, failure paths matter as much as models. Those constraints show up in dual-mode config, barge-in, and team data scope.

***

## What I work on

* Control console and API: devices/agents/models/knowledge, system vs team permissions, config delivery
* On-device speech service: session path, classic vs end-to-end mutual exclusion, tool dispatch, control-plane sync
* Frontend: admin UI, permission UX, multi-region business APIs
* Knowledge: control-plane ops + in-session retrieval

<CardGroup cols={2}>
  <Card title="Flagship project" icon="microchip" href="/en/projects/voice-agent-platform">
    Day-in-the-life, session walkthrough, depth anchors.
  </Card>

  <Card title="Lessons learned" icon="lightbulb" href="/en/notes/lessons-learned">
    Short retros.
  </Card>

  <Card title="Projects overview" icon="folder" href="/en/projects/overview">
    Stack and notes entry.
  </Card>

  <Card title="Introduction" icon="house" href="/en/introduction">
    Site entry.
  </Card>
</CardGroup>

***

## How I think

Production constraints first: felt latency, failure shape, observability. Frameworks can change; control↔session contracts, permission boundaries, and interrupt semantics should not be vague. I write judgments here so they can be revised.

Still improving: contract checks, session baselines (first audio / barge-in / tool failure), and where multi-step agents fit in real products.


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