# Week of Mon, May 25, 2026 · JapanTech

May 25 – May 31 (JST). Page: https://japantech.info/weeks/2026-W22/

## Mon, May 25, 2026

- [Tech Brunch Event](https://japantech.info/events/meetup-314870043/): Mon, May 25, 2026 11:45 JST, Hotel Metropolitan Edmont Tokyo, 3-10-8 Iidabashi, Chiyoda-ku,. A small brunch meetup at Hotel Metropolitan Edmont Tokyo unpacking functional programming and category theory: monoids, functors, monads, and friends.
- [From Niigata, Bringing AI to Society: NIIGATA AI Digital Playground Briefing for AI Development Companies](https://japantech.info/events/peatix-5003264/): Mon, May 25, 2026 13:00 JST, Tokyo Innovation Base, 千代田区丸の内３丁目８−３. A 90-minute briefing for Tokyo-area AI developers on Niigata Prefecture's AI implementation program, matching scheme, subsidies, and 2026 expo.
- [After RubyKaigi 2026 by pixiv](https://japantech.info/events/connpass-392604/): Mon, May 25, 2026 19:00 JST, ピクシブ株式会社 東京オフィス. A pixiv-hosted RubyKaigi 2026 after-party in Tokyo with a CTO talk re-performance, three lightning talks, and networking.
- [Sendagaya.rb #527](https://japantech.info/events/doorkeeper-197188/): Mon, May 25, 2026 21:00 JST, Online. Online regular meetup of a local Ruby and Rails community, run on Google Meet.

## Tue, May 26, 2026

- [Tech Brunch Event](https://japantech.info/events/meetup-314870051/): Tue, May 26, 2026 07:45 JST, Hotel Metropolitan Edmont Tokyo, 3-10-8 Iidabashi, Chiyoda-ku,. Bring Your Own Dotfiles: small brunch meetup in Iidabashi for engineers to swap productivity tools, CLI setups, and browser extensions.
- [Tokyo Weekly Lunch](https://japantech.info/events/meetup-sxwcxtyjchbjc/): Tue, May 26, 2026 12:00 JST, Expanded details for Tokyo Station City Sapia Tower Tokyo Station City Sapia Tower, 1-7-12 Marunouchi Chiyoda-ku, 13 100-0005. Weekly informal startup networking lunch at Sapia Tower in Marunouchi, no pitches.
- [THAI DEEPTECH MEETUP 2026](https://japantech.info/events/luma-8l7fedq8/): Tue, May 26, 2026 13:00 JST, Chiyoda City, Tokyo. Ten Thai deep tech startups in food, health, and sustainability meet Japanese partners at TiB for live demos and 1-on-1 PoC talks.
- [AI-Driven Development: Solving the "We Can Write Fast but Can't Ship" Problem](https://japantech.info/events/connpass-391632/): Tue, May 26, 2026 14:00 JST, Online. CircleCI online session on unblocking the ship step when AI lets you write code faster than you can deliver it.
- [\[TOKYO SUTEAM\] THE DOJO - TOKYO SPORTS TECH STUDIO Matching Event](https://japantech.info/events/peatix-4969922/): Tue, May 26, 2026 16:00 JST, Tokyo Innovation Base, 千代田区丸の内３丁目８−３. Five startups from sports-tech accelerator THE DOJO pitch hypothesis-validation progress and meet potential PoC partners.
- [Don't Search for a COO, Define One — A Requirements-Articulation Workshop for Early-Stage Startups](https://japantech.info/events/peatix-4958709/): Tue, May 26, 2026 18:30 JST, Tokyo Innovation Base, 千代田区丸の内３丁目８−３. Panel and hands-on workshop for early-stage startup CEOs on defining the COO role before hiring one.
- [Weekly Tuesday Meetup](https://japantech.info/events/meetup-314656661/): Tue, May 26, 2026 19:30 JST, Tokyo HackerSpace, Akasaka, 8 Chome−12−13 アゼリア赤坂 102. Tuesday-night open house at Tokyo Hackerspace's new Akasaka location: drop in, meet members, and see the workshop.

## Wed, May 27, 2026

- [YOKOHAMA CONNÉCT #38](https://japantech.info/events/gatherus-5ae4d706-ce97-444a-8afb-6fdc32f3aca3/): Wed, May 27, 2026 16:00 JST, TECH HUB YOKOHAMA, 西区みなとみらい２丁目２番１号 横浜ランドマークタワー TECH HUB YOKOHAMA, 横浜市. Venture Café Yokohama's recurring hybrid innovation night at TECH HUB YOKOHAMA, with JP/EN text translation across all sessions.
- [Snack and Connect](https://japantech.info/events/gcal-1cqjeihehcok5mht496nifhtmg_20260527T1600/): Wed, May 27, 2026 16:00 JST, Shibuya Startup Support, Japan, 〒150-0011 Tokyo, Shibuya City, Higashi, 1-chōme−29−３ 渋谷Bridge B棟. Weekly drop-in startup mixer at SSS's Shibuya Bridge office — no registration, snacks provided.
- [Early-Stage Deep Tech Forum \[Robotics, Quantum & Emerging Technologies\]](https://japantech.info/events/luma-pz0ofc2f/): Wed, May 27, 2026 17:30 JST, Chiyoda City, Tokyo. US-Japan deep tech investment forum with Agility Robotics' chair, Asteria's CEO, and MFV Partners' ex-Qualcomm Ventures lead at Tokyo Innovation Base.
- [THS "Nihongo Night" Open House](https://japantech.info/events/meetup-314673102/): Wed, May 27, 2026 19:30 JST, Tokyo HackerSpace, 赤坂8丁目12−13 アサレアビル102. Japanese-language open house at Tokyo Hackerspace's new Nogizaka location, focused on meeting members and seeing the space.

## Thu, May 28, 2026

- [Thursday Gathering #383](https://japantech.info/events/gatherus-61cf3c67-0879-4f41-95d8-5e76cf21c025/): Thu, May 28, 2026 16:00 JST, CIC Tokyo, Toranomon Hills Business Tower 15F, 1 Chome-17-1 Toranomon, Minato City, Tokyo. Venture Café Tokyo's weekly hybrid innovation night at CIC Tokyo, with sessions and open networking for the startup and deep-tech crowd.
- [TAI Explorations: AI x Branding](https://japantech.info/events/luma-a3vyz1k0/): Thu, May 28, 2026 18:00 JST, Tokyo, Japan. AI Explorations evening on AI x branding — live demos, technical talks, and networking in Tokyo.

## Fri, May 29, 2026

- [Tech Brunch Event](https://japantech.info/events/meetup-314870057/): Fri, May 29, 2026 07:45 JST, Hotel Metropolitan Edmont Tokyo, 3-10-8 Iidabashi, Chiyoda-ku,. Small LLM-focused brunch meetup at a hotel restaurant in Iidabashi for developers, data scientists, and curious LLM users.
- [TSUKUBA CONNÉCT #87 Intelligence in Motion, A Changing World: How Physical AI Will Reshape Industry](https://japantech.info/events/gatherus-daf1cf8b-d673-4bd4-8ebb-30976ba336e3/): Fri, May 29, 2026 17:30 JST, つくばスタートアップパーク, 2-5-1, Tsukuba. A Tsukuba Venture Café evening on Physical AI: a Fujitsu ecosystem session, PITCH ARENA vol.58, and talks from UTokyo IIS and KEK.
- [Try Chrome's Built-in AI! Built-in AI API Hands-on](https://japantech.info/events/connpass-393063/): Fri, May 29, 2026 19:00 JST, Online. Online hands-on by GDG Tokyo for trying out Chrome's Built-in AI API in practice.

## Sat, May 30, 2026

- [JJUG CCC 2026 Spring Volunteer Staff Recruitment (On-site)](https://japantech.info/events/doorkeeper-196135/): Sat, May 30, 2026 09:00 JST, ベルサール新宿グランドコンファレンスセンター, 〒160-0023 東京都新宿区西新宿８丁目１７−１ 住友不動産新宿グランドタワー5F. On-site volunteer staff recruitment for JJUG CCC 2026 Spring (May 30, Shinjuku) — venue ops on shifts.
- [Daikanyama Morning Code](https://japantech.info/events/luma-pe3v2hdv/): Sat, May 30, 2026 09:00 JST, Meguro City, Tokyo. Casual Daikanyama morning meetup for coders, designers, and AI/blockchain folks to share projects over coffee.
- [JJUG CCC 2026 Spring (In-Person Only)](https://japantech.info/events/doorkeeper-196011/): Sat, May 30, 2026 09:30 JST, ベルサール新宿グランド　コンファレンスセンター, 東京都新宿区西新宿8-17-1　住友不動産新宿グランドタワー 5F. One of Japan's largest Java community conferences, in-person only in Shinjuku, with multi-track sessions plus an evening lightning-talk social.
- [Coffee and Code](https://japantech.info/events/meetup-314932546/): Sat, May 30, 2026 10:00 JST, Starbucks in Roppongi Hills Lobby (THERE ARE TWO, PLEASE READ BELOW), 六本木6−10−1 六本木ヒルズ森タワー 1F. Casual weekend coworking meetup at Roppongi Hills Starbucks for coders and IT folks of any level, with an optional group lunch afterwards.
- [Tengu Underground 10.0](https://japantech.info/events/meetup-314866042/): Sat, May 30, 2026 11:00 JST, Meeting Spot, 〒104-0061 Tokyo, Chuo City, Ginza, 3 Chome−10−1 銀座グランディールビル. Seven-plus hours of hands-on ethical hacking and web security practice with TenguSec, lunch included.
- [\[Online\] \[#92\] Let's Translate MDN Together! MDN Translation Community Meetup](https://japantech.info/events/doorkeeper-196573/): Sat, May 30, 2026 13:00 JST, Online. Online monthly meetup to translate MDN Web Docs together via Slack and GitHub PRs.
- [JJUG CCC 2026 Spring Lightning Talks — Call for Speakers](https://japantech.info/events/doorkeeper-196013/): Sat, May 30, 2026 17:30 JST, ベルサール新宿グランド　コンファレンスセンター, 東京都新宿区西新宿8-17-1　住友不動産新宿グランドタワー 5F. Call for 3-minute Lightning Talk speakers at JJUG CCC 2026 Spring's evening networking session.

## Sun, May 31, 2026

- [Haskell-jp Mokumoku Session #345 @ Online](https://japantech.info/events/connpass-395128/): Sun, May 31, 2026 13:00 JST, Haskell-jp Slack Workspace. A free online coworking session where participants quietly work on their own Haskell projects