Yota Egusa
最高情報責任者 at Sakura Internet Inc
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolYota Egusa is a seasoned technology executive and CISO with 12 years of experience leading security and engineering at SAKURA Internet Inc., now serving as 最高情報責任者. An Osaka University-trained electronic and information engineer, he rose from new graduate hire to technology executive officer and has overseen security strategy since 2019. He combines executive leadership with hands-on backend development—contributing DNS provider support to the popular lexicon project and performance-focused API work in ISUCON competitions. Based in Chiyoda, Tokyo, he bridges product, infrastructure, and security while keeping active technical involvement in open-source and competitive programming communities. Colleagues value his ability to translate complex security requirements into practical, auditable engineering solutions. Unusually for an executive, he still commits code to critical integration and optimization tasks, keeping his technical skills sharp.
12 years of coding experience
Bachelor, Division of Electronic and Information Engineering, Bachelor, Division of Electronic and Information Engineering at Osaka University
Github Skills (17)
apim10
python10
apidoc10
api-design10
mysql10
flask-ask10
api10
dns10
sql10
database-design10
flask10
http-request9
error-handling9
rest-api9
cli8
Programming languages (11)
Github contributions (5)
AnalogJ/lexicon
Mar 2018 - Jul 2018
Manipulate DNS records on various DNS providers in a standardized way.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 3 PRs, 4 comments in 4 months
Contributions summary:Yota primarily contributed to the `lexicon` project by adding DNS provider support. They implemented the necessary code for interaction with the Sakura Cloud and Gehirn Infrastructure Service DNS providers, demonstrating an understanding of API interactions and DNS record manipulation. Their commits include the creation of provider-specific Python files, including authentication, record management, and testing. These additions expanded the project's compatibility with different DNS services.
pypiyandexconstellixgandilexicon
isucon/isucon9-qualify
Aug 2019 - Sep 2019
ISUCON9予選
Role in this project:Back-end Developer
Back-end DeveloperContributions:30 commits in 4 days
Contributions summary:Yota primarily contributed to the back-end development of the ISUCON9 qualify application. They implemented and modified several API endpoints, specifically focusing on retrieving user transactions, items, and categories. Their work involved database interactions using Python and MySQL, including optimizing queries and integrating with external services. Furthermore, the user made improvements related to error handling and handling of GET parameters.
reactnextjstypescript
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