Chojan Shang · PsiACE

Operator‑minded engineer building resilient data & AI platforms.

Snapshot

• GenAI Engineer — Vesoft (NebulaGraph)
  • Ships GraphRAG and agent workflows to production; leads the NebulaGraph GenAI Platform.
  • Fusion GraphRAG reduced time‑to‑first‑use by ~80% and improved precision by ~10% at equal compute.
• Apache OpenDAL™ — PMC Member
  • Architecture and releases across caching, retries, observability, and multi‑cloud backends.
• Databend (2021–2024) — Founding/Core Engineer
  • Built query execution and storage I/O; drove lakeFS and KubeSphere integrations; project grew 800 → 8000+ stars.

Focus

• Predictable, observable, and maintainable platform engineering.
• Graph‑driven retrieval and reasoning that respect structure, not just tokens.
• Documentation‑ and example‑driven OSS that scales contributions.

Speaking & Writing

• Talks: PyCon China, KCD Beijing, Rust China Conf, CommunityOverCode.
• Recent: agent protocols and workflows; engineering Graph‑augmented RAG.

Education

• M.S. Applied Mathematics & Data Science (2022–2024)
• B.S. Computer Science & Technology (2017–2021)

Connect

• GitHub: https://github.com/psiace
• Website: https://psiace.me
• X / Twitter: https://twitter.com/repsiace
• LinkedIn: https://www.linkedin.com/in/psiace