Taehwan Jang
Data Engineer
Seongnam-si, South Korea
Summary
👤
Senior🎓
Top SchoolTaehwan Jang is a data engineer with 10 years of experience who combines deep financial-domain expertise with large-scale distributed systems know-how. At Toss Securities he builds factor pipelines, visualization tools, and LLM-driven disclosure processing to turn raw financial statements, SEC filings, and market data into investment-ready signals. Previously he optimized sub-100ms backtesting and indexing systems at Doomoolmori and Coupang, and implemented low-level distributed search and vector-index recovery at NAVER, giving him uncommon fluency across both infrastructure and quantitative finance. Based in Seongnam-si, he excels at bridging engineering and investment teams to deliver robust, production-grade data solutions that surface actionable alpha. An engineer who moves comfortably from C++ network modules to LLM pipelines, he’s driven by squeezing performance out of complex data workflows.
10 years of coding experience
9 years of employment as a software developer
한국기술교육대학교
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (7)
http-server6
swift6
libuv6
java4
rest4
elasticsearch2
react1
Programming languages (5)
Github contributions (5)
tommy-th/Easy-Posting
Jul 2016 - Jun 2025
WPF remote blog posting tool
Contributions:1 PR, 4 pushes, 2 branches in 9 years 1 month
tommy-th/AlgorithmTraining
Dec 2015 - Jan 2023
Contributions:65 pushes, 4 branches in 7 years 1 month
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