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 First Developers Summit held
- 2012 10th anniversary edition held
- 2020 Moved online
- 2026 Themed Beyond the Code, with the first Dev x PM Day held alongside
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.
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 Expo Summer 2026
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Innovation Japan 2026 (University Trade Fair)
Japan's largest university-industry matching event, hosted by the Japan Science and Technology Agency (JST). Patented technology seeds from universities nationwide are exhibited for matching with corporate R&D and new business teams. The 2025 edition drew about 14,000 visitors to 291 exhibited seeds. Less a startup conference and more a trade fair that seeds technology transfer and joint research.
Open Developers Conference 2026
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