Developers Summit 2027
Overview
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.
Foundation
- Founded
- 2003
- Founder
- Shoeisha (CodeZine editorial team)
Launched in 2003 as a place for IT engineers to learn about technology and careers together.
Transition
- 2003 First Developers Summit held
- 2020 Moved to online editions
- 2026 Themed "Beyond the Code," with the first Dev x PM Day co-located
- 2027 Held February 17-19 in Tokyo, venue not yet announced
Voices
Listening to the talks, one attendee felt developer value is shifting toward evaluating and judging AI output (from an attendee note, in Japanese)
A first-time attendee was overwhelmed by the scale of visitors and booths, learning to pursue essence from Pixiv's AI cases and hands-on autonomous-driving problem solving (from Kaminashi's attendee 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.
Developers Summit
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.
AI Expo Summer 2026
The summer edition of the AI-focused exhibition hosted by AIsmiley, operator of Japan's AI portal media. Over 100 companies present 200+ AI solutions alongside 40+ conference sessions. Following the Spring 2026 edition at Tokyo International Forum, it moves to Sankaku Hiroba at the Shinjuku Sumitomo Building. Free to attend, it serves companies comparing generative AI and AI agent products.
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
A developer-focused open source conference run by the OSPN community behind the Open Source Conference (OSC) series. Billed as an "open source culture festival," it packs seminars, hands-on sessions, and community booths on DevOps, dev tools, and cloud into a single free day. Modest in size at 100-plus attendees, its strength since 2018 has been direct access to the developers behind OSS projects.