@simukappu
Shota Yamazaki
@simukappu
Writing about system design, distributed systems, and AI at scale.
Tokyo, JapanJoined April 2026
About
Solutions architecture leader working across cloud architecture, distributed systems, and AI. As much in the people and processes as in the technology. OSS author & maintainer. I write about architecture lessons from real-world systems at scale. Currently at AWS. All opinions are my own.
Available for
Technical writing collaborations, conference speaking, architecture discussions
Shota Yamazaki's blogs
Recently published
Resilience Beyond Multi-AZ: Bulkheads and Shock Absorbers — Architecture Dojo 2024
May 5 · 28 min read · Some incidents look minor on paper. A small single-digit percentage of instances affected, in a single AZ. And yet the user-visible outcome is that more than half of the service's transactions stop wo
Join discussionScaling Peak Traffic: From Planned Offloads to Unpredictable Bursts
Apr 14 · 18 min read · Your system can handle 10,000 requests per second. But can it handle going from zero to 10,000 in one second? Peak traffic forces a design choice: what do you include in your scaling scope? Compute, d
Join discussion4 Lessons from Dissecting Production Systems at Scale — Architecture Dojo 2025
Apr 7 · 17 min read · Every architecture decision is a bet. A bet that your constraints won't change, that your assumptions will hold, that the trade-off you're making today won't haunt you in two years. Since 2022, I've b
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