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Jiexin LiuJL
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Jiexin Liu

@jiexinliu

AI development engineer at the Institute of Process Engineering, Chinese Academy of Sciences, building domain Q&A with knowledge-graph-assisted retrieval.

China
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At the Institute of Process Engineering, Chinese Academy of Sciences, I designed and developed an internal domain knowledge Q&A platform covering more than 1,000 papers. It uses knowledge-graph-assisted retrieval for extraction, lithium-battery, and related domains.

I also designed a document intelligence pipeline after evaluating OCR and document-parsing approaches. I built parsing flows for complex tables and scanned or skewed pages, producing structured Markdown and JSON for downstream RAG workflows.

At the Institute of Software, Chinese Academy of Sciences, I led delivery of two cloud platform projects and contributed to two others, working directly with customers on requirements and implementation plans. I deployed and maintained Kubernetes clusters across offline environments and implemented multi-cluster management with Crossplane.

At AInnovation (Beijing) Technology Co., Ltd., I developed backend services and LLM applications, including a LangChain prompt service and a document Q&A workflow with a vector database. I also customized LangFlow for drag-and-drop agent and RAG workflows and packaged a Python SDK for reuse.

Experience

Work history, roles, and key accomplishments

IS
Current

AI Development Engineer

Institute of Process Engineering, Chinese Academy of Science

Oct 2025 - Present (1 year)

Designed and developed an internal domain knowledge Q&A platform processing over 1,000 papers with knowledge-graph-assisted retrieval. Implemented a document intelligence pipeline using OCR and parsing tools to produce structured Markdown/JSON for RAG workflows.

IS

Software Engineer

Institute of Software, Chinese Academy of Sciences

Nov 2023 - Oct 2025 (1 year 11 months)

Led end-to-end delivery of cloud platform projects, managing Kubernetes clusters and multi-cluster operations. Implemented GPU scheduling with Volcano and provisioned VMs with Ceph storage.

DL

Full-Stack Developer & Test Engineer

Dash Consulting Co., Ltd.

Dec 2020 - Oct 2021 (10 months)

Developed website features including report generation and permission settings, and performed functional testing for web and mobile applications. Built Python scrapers for automated data collection and reporting.

Education

Degrees, certifications, and relevant coursework

University of Southern California logoUC

University of Southern California

Master of Science, Electrical and Computer Engineering

2018 - 2020

M.S. in Electrical and Computer Engineering with a focus on Multimedia and Creative Technology.

University of California, Los Angeles logoUA

University of California, Los Angeles

Bachelor of Science, Electrical and Computer Engineering

2016 - 2018

B.S. in Electrical and Computer Engineering.

Availability

Looking for a job

Location

China

Authorized to work in

Salary expectations

38k+ USD

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