Hirotaka Nakajima
Vice President at Goldman Sachs
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolHirotaka Nakajima is an infrastructure and security engineering leader with 15 years of experience building and operating large-scale distributed systems across data centers and cloud environments. As Vice President in Technology at Goldman Sachs, he leads configuration management and security infrastructure for 200,000+ servers, focusing on automation, platform reliability, and regulated system isolation. Previously at Mercari he combined security research—authoring IETF Internet-Drafts on crypto asset standards—with hands-on SRE work spanning on-prem BGP/AS operations to GCP VPC design and scalable remote access solutions. He founded and operates an independent ISP end-to-end, single-handedly implementing member management, billing, authentication, RADIUS, and CI/CD-driven infrastructure with Terraform, Ansible, Docker, and Stripe. A contributor to Internet standards and governance (ISO TC68, IETF, JCIX, former ISOC Japan board), he also leverages LLMs as a force multiplier across architecture, code generation, and documentation.
15 years of coding experience
Computer Science, Visiting Graduate School Student, Computer Science, Visiting Graduate School Student at Massachusetts Institute of TechnologyMaster of Media and Governance, Computer Science, Master of Media and Governance, Computer Science at Keio University
Japanese, English
Github Skills (86)
python10
mqtt9
home-automation9
automation9
home-assistant9
esxi9
asyncio9
privacy9
oauth9
raspberry-pi9
iot9
puppet8
vpn8
vms8
wireguard8
Programming languages (12)
Github contributions (5)
cgtf/cgtf.github.io
Dec 2019 - Mar 2025
Contributions:90 pushes in 5 years 3 months
cgtf/draft-crypto-assets-security-considerations
Mar 2018 - Dec 2020
Contributions:77 commits, 2 PRs, 81 pushes in 2 years 9 months
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