Japan, Tokyo Weekly Tech Event Digest [`25 Dec 8 - Dec 14]

Hello, tech and startup enthusiasts! Hope you’re having a great week. Here’s a list of upcoming tech events in Japan for the week of December 8 - December 14. Whether you’re into coding, AI, startups, or just looking to network, there’s something for everyone. Check out the details below and mark your calendars!

Events

Monday, December 8

• LINE Yahoo Developer Meetup in Fukuoka | 🕐 19:00 | Line Yahoo Communications Cafe Space, Fukuoka | 🇯🇵 | 🔗Link: A meetup for engineers hosted by LINE Yahoo in Fukuoka. Engineers from the company will share knowledge, challenges, and learnings from developing and operating their various services. The event includes several technical sessions followed by a networking opportunity.

• Musubi Tech x Go Global Tokyo: Premium Networking Night | 🕐 19:30 | Jidai - The Japan Experience Bar, Tokyo | 🇬🇧🇯🇵 | 🔗Link: An evening of cross-community networking for tech startup founders and internationally minded professionals. This is the first collaboration between Musubi Tech and Go Global Tokyo, featuring casual conversation over food and drinks at JIDAI Bar in Ginza.

• Sendagaya.rb #513 | 🕐 21:00 | Online | 🇯🇵 | 🔗Link: An online meetup for a Rubyist community in Tokyo. Participants will discuss topics like Kaigi on Rails and RubyKaigi, seek advice on development challenges, and work on their own projects. Beginners are welcome. The event will be held on Google Meet.

Tuesday, December 9

• Code & Breakfast: A Meetup for Hands-On Software Development | 🕐 07:45 | Hotel Metropolitan Edmont Tokyo | 🇬🇧 | 🔗Link: A focused gathering for software enthusiasts to start their day with productive discussions and hands-on coding. Attendees bring their own projects, enjoy breakfast, and dive deep into software architecture, design, and coding. The event is for software engineers, scientists, IT professionals, entrepreneurs, and students.

• Weekly Lunch @ TiB | 🕐 11:30 | Tokyo Innovation Base, Tokyo | 🇬🇧🇯🇵 | 🔗Link: Weekly startup lunch networking in Tokyo. Entrepreneurs, investors, and enthusiasts connect over lunch. Bring your own or buy from food trucks. Casual conversations and discussions.

• AI-Driven Healthcare: From Research to Social Impact | 🕐 16:30 | Playground (plug And Play Japan Office) | 🇯🇵🇬🇧 | 🔗Link: Guest speakers from Stanford University and the University of Tokyo will discuss research and real-world implementation of AI in healthcare. The event includes startup pitches and is open to anyone interested in healthcare innovation or AI research, including professionals, researchers, and students.

• Career Choice: Entrepreneurship or Employment? | 🕐 19:00 | Live House Shin-okubo Club Voice | 🇯🇵 | 🔗Link: A talk session with Kimihiro Katsumi, CEO of BaseMe Inc., exploring career choices such as entrepreneurship versus employment from a student’s perspective. The session will be moderated by a TORYUMON representative and includes a networking opportunity.

• MLflow for AI Agent/ML Model Development | 🕐 19:00 | Line Yahoo Kioicho Office | 🇯🇵 | 🔗Link: This event focuses on using MLflow to accelerate the development of AI agents and ML models. It brings together creators, operators, and users to share practical knowledge and real-world case studies on development, operation, and utilization to advance AI systems more reliably and quickly.

• Tokyo HackerSpace Weekly | 🕢 19:30 | HackerSpace, Tokyo | 🇬🇧 | 🔗Link: Weekly gathering for tech enthusiasts, makers, and hackers to collaborate, share ideas, and work on projects together.

Wednesday, December 10

• Hot & spaCy: A Brunch for NLP Enthusiasts | 🕐 07:45 | Hotel Metropolitan Edmont Tokyo | 🇬🇧 | 🔗Link: Join a brunch for NLP enthusiasts to discuss techniques, tools, and challenges in the field. This event is for computational linguists, data scientists, developers, and anyone curious about Natural Language Processing. Expect relaxed discussions on topics from mathematical foundations to real-world projects.

• Yokohama Startup Lunch | 🕐 11:30 | Tech Hub Yokohama, Yokohama | 🇬🇧 | 🔗Link: A monthly networking event for entrepreneurs, innovators, and professionals to share ideas, build connections, and explore opportunities within Yokohama’s dynamic startup ecosystem. Engage in inspiring conversations, gain insights, and expand your professional network. Lunch is not provided.

• Study Session on ‘The Guide To Design’ | 🕐 12:00 | Online | 🇯🇵🇬🇧 | 🔗Link: An online study series to learn about global UX concepts using the ‘Guide To Design’ document. The lunchtime sessions are for designers, PMs, and engineers, focusing on discussion and practical application to turn learning into usable skills.

• YOKOHAMA CONNÉCT 27 | 🕐 16:00 | Tech Hub Yokohama | 🇬🇧🇯🇵 | 🔗Link: A networking event for innovators and entrepreneurs. This edition features sessions on Korean startups, insights from startups exhibiting in Singapore, and future technology from the Deaflympics, fostering connections and discussions on emerging innovations.

• Shibuya Public Event | 🕕 16:00 | Shibuya Startup Support Space | 🇬🇧🇯🇵 | 🔗Link: Networking event hosted by Shibuya Startup Support, providing tools and connections for startups to grow.

• Tokyo Tech Jobs Night | 🕐 17:00 | Tokyo Innovation Base | 🇬🇧🇯🇵 | 🔗Link: A career event for developers, designers, product managers, and tech professionals seeking new opportunities. Connect with startups hiring in Tokyo, discover curated positions, and network with hiring managers and peers. Features company pitches, speed interviews, and a networking area.

• Tokyo Tech Jobs Night | 🕐 17:00 | Tokyo Innovation Base | 🇬🇧🇯🇵 | 🔗Link: A networking event for developers, designers, product managers, and other tech professionals looking for job opportunities. Connect with curated startups hiring for various tech roles in Tokyo. The event includes company pitches, one-on-one meetings with hiring managers, and networking sessions.

• Rising Biotech Challenge 2025 DEMO DAY | 🕐 18:00 | Playground (plug And Play Japan Tokyo Office) | 🇯🇵 | 🔗Link: This is the final presentation day for the “Rising Biotech Challenge 2025” accelerator program. The event will feature pitches from 12 selected startups and researchers, lectures by industry leaders, and networking. It is intended for anyone involved or interested in the biotech ecosystem.

• Google Summer Of Code - Kickstart Your Open Source Journey | 🕐 18:15 | Google Shibuya Office | 🇬🇧🇯🇵 | 🔗Link: A special event for the Google Summer of Code (GSoC) team’s visit to Japan. Program lead Stephanie Taylor will share information about GSoC and provide tips for getting accepted. This event is ideal for university students and early-career engineers interested in applying to the program.

• HN Tokyo Meetup #121 | 🕐 18:30 | Blink Roppongi | 🇬🇧 | 🔗Link: A social networking event for entrepreneurs, startup founders, and technologists. Attendees will have an opportunity to make announcements and pitch ideas or startups to the crowd. A small fee is paid in cash at the door. Recruiters must request permission to attend.

• Angular Hands-on ~ Learn with AI ~ | 🕐 19:00 | Google Shibuya Office | 🇬🇧🇯🇵 | 🔗Link: A beginner-friendly hands-on session to build a simple application using Angular, supported by ‘Angular AI Tutor,’ a Gemini-based AI. This event is for frontend engineers, with or without prior Angular experience, to learn modern Angular development practices. An English talk on Google Summer of Code will also be held.

• Angular Introduction Hands-on ~ Learn with AI ~ | 🕐 19:00 | Google Shibuya Office | 🇯🇵 | 🔗Link: A beginner-friendly, hands-on workshop for learning modern Angular application development. Participants will build a simple app using ‘Angular AI Tutor,’ a Gemini-based AI assistant. This event is for frontend developers, even those new to Angular, covering basics like Signals and component architecture.

• Tokyo HackerSpace Weekly JP | 🕢 19:30 | HackerSpace, Tokyo | 🇯🇵 | 🔗Link: Weekly gathering for tech enthusiasts, makers, and hackers to collaborate, share ideas, and work on projects together. In Japanese.

Thursday, December 11

• How to Win Friends and Exit Vim: A Brunch for Vim Users | 🕐 07:45 | Hotel Metropolitan Edmont Tokyo | 🇬🇧 | 🔗Link: A brunch for Vim users of all levels to share plugins, discuss configurations, and exchange tips on modal editing. Newcomers and seasoned veterans are welcome to join this relaxed gathering. First-time attendees’ meals are provided for free.

• Energy and Climate Change Issues and Countermeasures | 🕐 15:00 | Nagoya Innovators Garage | 🇯🇵 | 🔗Link: This event addresses the urgent issues of energy and climate change in the Chubu manufacturing region. Experts will share insights on global innovation trends, and participants will discuss real-world challenges and their countermeasures, aiming to foster concrete actions for companies in the region.

• TSUKUBA STARTUP NIGHT 2025 | 🕐 16:00 | Cic Tokyo | 🇬🇧🇯🇵 | 🔗Link: This event focuses on Tsukuba’s startup ecosystem, exploring the theme of synergy between AI, the city, and people. It will discuss administrative support for startups, expectations for Tsukuba’s growth, and the social implementation of technology, aiming to foster innovation and build connections among attendees.

Friday, December 12

• NAGOYA CONNÉCT | 🕐 17:00 | Nagono Campus | 🇯🇵🇬🇧 | 🔗Link: A networking event for innovators and entrepreneurs. This hybrid event features sessions on pitching, branding, and student entrepreneurship competitions, aiming to connect and foster the local innovation ecosystem. Participants can join in-person or online.

• From Reasoning to Real Time: Infrastructure for Modern Multimodal AI | 🕐 18:00 | Bunkyo City, Tokyo | 🇬🇧 | 🔗Link: This event explores how latency and throughput impact production-ready multimodal AI systems. Talks will cover accelerating deep-agent pipelines and low-latency voice generation, showcasing how advances in speed and efficiency are enabling new applications for ML engineers.

• JJUG Night Seminar: Context Engineering × Young Coders | 🕐 19:00 | Microsoft Japan Co., Ltd., Tokyo | 🇬🇧 | 🔗Link: This session explores context engineering with Stephen Chin, focusing on how graph technologies enhance AI. Cassandra Chin will share tips for introducing children to technology. The event provides an inspiring look at the future of AI and nurturing the next generation of creators.

Saturday, December 13

• Daikanyama Morning Code | 🕐 09:00 | Dean & Deluca | 🇬🇧🇯🇵 | 🔗Link: A meetup for people interested in code, web development, design, cloud, blockchain, or AI. All levels are welcome. Attendees can bring their laptops to discuss their work, share projects, and exchange ideas with other participants.

• Saturday Morning UX Meetup | 🕐 10:00 | Geihinkan Rest Area, Tokyo | 🇬🇧🇯🇵 | 🔗Link: A casual morning meetup for coffee, tea, and conversation with UX professionals in Tokyo. The event is for anyone working in or interested in the UX industry, including design, research, product management, and engineering.

• OSS Gate Online Workshop | 🕐 13:00 | Online | 🇯🇵 | 🔗Link: This workshop aims to help beginners take their first step in contributing to Open Source Software (OSS). It connects beginners with experienced supporters to gain hands-on experience in OSS development. The event is held online using Element for communication.

Sunday, December 14

• Digital Nomads Morning Activity in Nakameguro | 🕐 09:00 | Dean & Deluca Cafe Tokyo College Of Music Nakameguro・daikanyama Campus | 🇬🇧 | 🔗Link: A relaxed morning gathering for digital nomads, expats, and internationally-minded locals to connect and make new friends. This is a casual meetup at a cafe with no entrance fee; attendees pay for their own food and drinks.

• HEALTHREE Grand Return Festival 2025 | 🕐 12:00 | Ebisu, Tokyo | 🇬🇧🇯🇵 | 🔗Link: A thank-you event for HEALTHREE players to celebrate a year of significant growth. The festival includes the 2025 Hunter Awards Ceremony, a social gathering for fans, and exclusive content with special benefits. Join the team for a year-end celebration.

Disclaimer

Events above are collected from a variety of online open sources. There might be changes or cancellations. Please check the event page for the most up-to-date information.

If you have an event to share, please let us know - we’d love to include it in our next digest! Mail us at [email protected].