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qicesun/README.md

Qice Sun

Senior Software Engineer @ Microsoft
GenAI Engineer building production LLM systems, enterprise AI infrastructure, and agentic platforms.

I work at the intersection of LLM applications, agent protocols, enterprise RAG, and AI for operations — turning prototypes into systems that are testable, maintainable, and safe enough for real users.

Email · GitHub


Focus

  • Production LLM systems — RAG, tool calling, guardrails, evaluation, observability, and lifecycle design.
  • Agent infrastructure — MCP, multi-step workflows, memory, typed tools, and failure-aware orchestration.
  • Enterprise Java AI — bringing modern AI capabilities into Spring Boot / JVM ecosystems.
  • AI for DevOps & SRE — Kubernetes diagnosis, incident reasoning, Git/Jira correlation, and safe remediation loops.

Open source leadership

I contribute to the LangChain4j ecosystem with a focus on infrastructure-level work that expands what Java AI applications can do in production.

Model Context Protocol for Java

Led and delivered key pieces of the Java MCP server path across LangChain4j and LangChain4j Community:

  • Shared MCP protocol DTOs and stdio JSON-RPC transport foundations.
  • Community MCP server module exposing Java @Tool methods over MCP.
  • Java stdio MCP server example and documentation for Claude Desktop-style usage.
  • Lifecycle hardening such as clean stdio shutdown support.

Enterprise agent tooling

Built agent-ready integrations that connect LLMs to enterprise systems:

  • Jira Tool — search, create, comment, ADF parsing, robust agent-facing errors.
  • Web Scraper Tool — lightweight HTML-to-Markdown extraction with context-noise reduction.
  • Confluence / GitLab Document Loaders — resilient enterprise knowledge ingestion for RAG.

Guardrails & framework correctness

  • Built prompt repetition components for AI Services and RAG: policies, input guardrails, query transformers, AUTO-mode gates, idempotence, and docs.
  • Fixed LangChain4j AI Services guardrail ordering so multimodal input is materialized before guardrail execution.

Pinned Loading

  1. langchain4j/langchain4j-community langchain4j/langchain4j-community Public

    LangChain4j integrations that are maintained by the community

    Java 201 112

  2. SRE-Agent-App SRE-Agent-App Public

    An Autonomous AI SRE Agent for Kubernetes, built with Java Spring Boot & LangChain4j. Implements OODA loop for self-healing.

    Java 62 2