Sep 6 (Thu)Sep 7 (Fri)Sep 8 (Sat)
@Kyoseikan, Keio University

In association with Keio University Graduate School of Media Design


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builderscon is a place to
"Discover Something New"
Celebrate the "builders" of our age
and the technology that they build.

At builderscon we do not focus on a particular technology stack or a programming language. We only ask you that you bring something that excites the geeks in us.

Show us your crazy hacks, dive deep into a language that you love, show us a glimpse of a future technology. We want to see you share the problems you faced, and how you overcame them.

Please come and share your passion at builderscon!


Kyle Kingsbury

Kyle Kingsbury

Kyle Kingsbury, a.k.a "Aphyr", is a computer safety researcher working as an independent consultant. He's the author of the Riemann monitoring system, the Clojure from the ground Up introduction to programming, and the Jepsen series on distributed systems correctness. He grills databases in the American Midwest.

Scott Mansfield

Scott Mansfield


Scott Mansfield is a Sr. Software Engineer at Netflix working on distributed caches and databases for the Netflix control plane. Open source projects include EVCache and Rend. When not working he likes to spend time with his daughter and waits for winter to come so he can be skiing again.

Amy Nguyen

Amy Nguyen


Amy Nguyen is a software engineer on the Stripe Observability team and she wants to make data accessible for everyone. Outside of work, Amy writes about the tech industry, loves baking, and reads too many self-improvement books.

Rui Ueyama

Rui Ueyama

Rui Ueyama is a software engineer working for an open-source project as a full-time job. He is the original author of the new LLVM lld linker, as well as other open-source programs including 8cc compiler.

Matt Klein

Matt Klein


Matt Klein is a software engineer at Lyft and the architect of Envoy. Matt has been working on operating systems, virtualization, distributed systems, networking, and making systems easy to operate for over 15 years across a variety of companies. Some highlights include leading the development of Twitter’s C++ L7 edge proxy and working on high-performance computing and networking in Amazon’s EC2.



Sep 6 (Thu) Sep 7 (Fri) Sep 8 (Sat)


Kyoseikan, Keio University

4-1-1 Hiyoshi, Kohoku Ward, Yokohama, Kanagawa Prefecture 223-0061





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