Cloud Operator Days Tokyo 2026
Overview
An annual conference dedicated to cloud infrastructure operators. Launched in 2020 as the successor to OpenStack Days Tokyo, it focuses on sharing successes, failures, and know-how from operations. Typically combining summer on-demand sessions with an in-person closing event, the 2026 finale takes place September 11 at docomo R&D OPEN LAB ODAIBA in Odaiba.
Foundation
- Founded
- 2020
- Founder
- Akihiro Hasegawa (Executive Committee Chair, AXLBIT)
Born from OpenStack Days Tokyo (running since 2013), it debuted in 2020 under the banner of "getting close to the reality of cloud operations." It remains a vendor-neutral venue where operators themselves share lessons from new challenges and failures.
Transition
- 2013 前身のOpenStack Days Tokyoが開始
- 2020 Cloud Operator Days Tokyoとして初開催（オンライン）
- 2025 オンデマンド配信（7〜9月）とクロージングイベント（9月5日・お台場）を開催
- 2026 クロージングイベントを9月11日にdocomo R&D OPEN LAB ODAIBAで開催予定
Voices
A healthcare-SaaS engineer brought back operational insights from the on-demand sessions (from the Henry Engineer Blog's CODT2025 notes, in Japanese)
A day-of report by a speaker who presented on LLMs for operators at CODT2024 (from the syu-m blog report, in Japanese)
A CODT2024 attendance report covering operations-automation and AIOps sessions (from the IBM Community report, in Japanese)
Developers Summit 2026 Summer
The summer edition of Developers Summit (Devsumi), a conference for IT engineers hosted by Shoeisha. Two days of technical sessions and exhibits themed on engineers' contribution to business, co-located with IT Strategy Summit 2026.
AI DevEx Conference 2026
A conference on developer productivity and developer experience in the AI era, hosted by Findy as the successor to its Developer Productivity Conference. Under the theme "the future of development productivity and engineering organizations in the AI era," 56+ speakers discuss the relationship between AI and organizations and the evolution of development platforms. Engineering leaders from global big tech companies also take the stage.
Google Cloud Next Tokyo
The largest Google Cloud conference in Japan, featuring the latest technologies and case studies for Google Cloud and Workspace. Includes keynotes, technical sessions, and hands-on labs. 13,000 attendees in 2025.