Jun Ikeda
Software Engineer at LINEヤフー株式会社
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolJun Ikeda is a software engineer in Tokyo with 12 years' experience building petabyte-scale data pipelines and LLM-powered conversational agents. At LINEヤフー he redesigned extraction and crawl systems to enable independent optimization and higher downstream utility, and now leads development of LangGraph-based shopping agents grounded in automated, persona-driven evaluation. He prioritizes explicit evaluation metrics and optimization units over ad-hoc experimentation, turning ambiguous objectives into continuously improvable systems. His work bridges large-scale distributed infrastructure (Spark/Hadoop) and applied generative AI, with a practical focus on reproducible improvement cycles. Jun holds an MEng from the University of Tokyo and is exploring how real user interaction data can close feedback loops for more robust LLM agent behavior. Despite joking on GitHub about being a "weak coder," his track record shows a disciplined systems thinker who operationalizes evaluation into product impact.
12 years of coding experience
2 years of employment as a software developer
Master of Engineering - MEng, Information Science and Technology, Master of Engineering - MEng, Information Science and Technology at 東京大学
Github Skills (102)
campus10
gpa10
electron-react10
nintendo-3ds10
libev10
grav9
grav-plugin9
smarty9
redux9
3ds9
console9
rust8
flat-file8
yaml8
nette8
Programming languages (13)
Github contributions (5)
SykieChen/Cpp-Practicum-Game-PiePick
Dec 2015 - Apr 2019
Contributions:3 releases, 24 pushes, 1 branch in 3 years 4 months
wangyufeng0615/bjuthelper
Jan 2017 - Feb 2019
野生工大助手，查询北京工业大学教务系统的任意学期各科成绩、查询大学总平均分和总平均GPA.
Contributions:47 commits, 16 PRs, 24 pushes in 2 years 2 months
pythonchinese-simplifiedphalcongpanette
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.