Jaehun Choi
Ai Research Engineer at Braincrew Inc.
Daejeon, South Korea
Summary
👤
Senior🎓
Top SchoolJaehun Choi is an AI Research Engineer with 8 years of experience focused on building production-grade RAG systems, personalized assistants, and prompt engineering. He has designed advanced retrieval pipelines, implemented access-controlled retrievers, and optimized chunking and evaluation strategies for domain-specific knowledge, achieving up to 95% recall in a shipbuilding PoC. Comfortable bridging research and engineering, he brings hands-on experience with Langflow and Langfuse, Text2SQL/Text2Cypher integrations, and metadata-aware retrieval methods. Based in Daejeon, South Korea, he actively documents his work on GitHub and a technical blog, and enjoys extracting hidden signals from conversations to synthesize training data for robust assistants.
8 years of coding experience
1 year of employment as a software developer
학사, 컴퓨터공학, 3.6, 학사, 컴퓨터공학, 3.6 at 한남대학교
Korean, English
Github Skills (37)
langchain9
agent9
capstone8
science6
leiningen6
computer-science5
fundamentals5
team-project4
notification-service4
notification3
python3
react3
javascript3
java2
ml2
Programming languages (7)
Github contributions (5)
ash-hun/my_Boj
Aug 2023 - May 2024
Contributions:217 pushes, 1 branch in 9 months
Pray2U/Algorithm-Study
Feb 2023 - Jun 2023
2023 Algorithm Study
Contributions:31 reviews, 23 PRs, 47 pushes in 3 months
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