Katsutoshi Nakatomi
ITソリューション部 インフラサービスグループ at 株式会社SHIFT
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolKatsutoshi Nakatomi is an experienced infrastructure and security engineer with over three decades in IT, combining early COBOL mainframe development with 18 years as a freelance SE and ISP founder. He has led operations, service design, and automation efforts at NTTPC Communications and BroadBand Tower, driving Ansible adoption, monitoring automation, and vulnerability aggregation using tools like Vuls and Shadowserver. As a hands-on manager he has overseen data center, hosting, and IX operations while building and supporting security products such as WAF, Attack Blocker, and endpoint service desks. He frequently bridges technical delivery and CSIRT-style security communication, contributing vulnerability reports to IPA and writing for industry publications. Based in Chiyoda, Japan, he blends entrepreneurial instincts from running a regional ISP with enterprise-scale engineering and people development experience. An understated strength is his long-running focus on operational tooling and automation that turns security research into repeatable services.
9 years of coding experience
34 years of employment as a software developer
なし, general education curriculum, なし, general education curriculum at Saitama Prefectural Namekawa High School
Japanese, Chinese
Github Skills (71)
security-hardening10
vulnerability-management10
python10
vulnerability-scanners10
hat10
security-automation10
security10
automation10
vulnerability-detection10
rest-api10
scanner10
django10
wordpress10
cybersecurity10
linux10
Programming languages (5)
Github contributions (5)
nakacya/vuls-to-redmine
Nov 2017 - Dec 2017
Contributions:72 commits, 2 PRs, 71 pushes in 1 month
nakacya/ansible-zabbix4-agent-rhel7
Jun 2018 - Aug 2019
Contributions:1 push in 1 year 2 months
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