Developers Summit
Overview
A longstanding IT engineer festival since 2003. The 2026 theme is 'Beyond the Code' with 92 sessions and the first Dev x PM Day. A community-driven conference supporting technical knowledge sharing and career development.
Foundation
- Founded
- 2003
- Founder
- Shoeisha (CodeZine editorial team)
Started in 2003 as a venue for IT engineers to learn about technology and careers
Transition
- 2003 Developers Summit 初開催
- 2012 10周年記念開催
- 2020 オンライン開催に移行
- 2026 テーマ「Beyond the Code」。初のDev x PM Day併催
Voices
Many sessions provide great opportunities to think about engineering careers.
The community energy is high, and the distance between speakers and attendees is small.
A backend engineer felt developer value shifting toward evaluating and judging AI output (from an attendee's report, in Japanese)
An exhibitor of a test automation tool learned adoption pain points from conversations with visiting engineers (from RGS's report, in Japanese)
A first-timer overwhelmed by the sheer scale of attendees and booths, who took away lessons on pursuing fundamentals from pixiv's AI adoption case and the gritty problem-solving of autonomous driving development (from Kaminashi engineer Kawariku's report, in Japanese)
Inspired by spec-driven development that treats the spec as the single source of truth and delegates implementation to AI, and keenly felt the AI era demands transforming the business model itself, not just adding features (from Far End Technologies' Yoshioka's report, in Japanese)
Developers Summit 2027
A festival for IT engineers running since 2003, hosted by Shoeisha's CodeZine. It has established itself as a community-driven venue where working engineers learn about technology and careers together, kept free for attendees thanks to paid sponsors, with front-line practitioners such as Yukihiro Matsumoto and Takuto Wada speaking most years. The 2027 edition runs three days, February 17-19, in Tokyo.
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