Senior Software Engineer @mercari_jp. Likes to build systems and think about thinking. 日本語OK👌
Joined March 2017
- Tweets 420
- Following 720
- Followers 463
- Likes 1,100
97 Photos and videos
Jun 12
Code w/ Claude Tokyo was educational. Brb building a few loops and routines.
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May 26
Public speaking ranks as the #1 fear globally. To help developers get over that fear, @meltinghack & I are hosting a talk interactive session for folks in Tokyo.
June 15 (Mon) | Roppongi
luma.com/m4if17ik?utm_source…
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May 26
「登壇してみたいけど緊張する」「人前で話すのが怖い」そんなエンジニア向けに、@meltinghack さんと一緒に、東京でトーク＋参加型セッションを開催します！
6月15日（月）｜六本木
luma.com/m4if17ik?utm_source…
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May 24
"The people you most want to impress in life are the ones who can see right through you" - Naval
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May 18
For all KGPians in Japan,
The second KGPians alumni meet is scheduled for June 3. Come join !
luma.com/0smvki7t?utm_source…
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May 14
I’ve been using speech-to-text for communicating with AI agents too often. When I context-switch and talk to people instead, I have to remind myself not to be straightforward in the interest of saving tokens.
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May 8
I'll be speaking about Agent Skills for full stack development at @TokyoAI_JP. Few more talks on agentic development. Come join if you're interested!
May 12 | Tuesday | Shibuya
luma.com/zn7pp9rj
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Apr 24
In the past month, I've switched my default terminal twice (iterm → ghostty → cmux).
The last time I changed my default terminal was 7 years ago (tilix → iterm2) when I switched to a macbook 👴
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Mar 2
TIL: Robert Cialdini's Principles of Influence
Aligns closely with modern businesses: social proof, scarcity, community.
en.wikipedia.org/wiki/Influe…
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Mar 1
MistralAI Worldwide Hackathon Tokyo was great !
Did not expect to pull an all-nighter, ML hackathons are intense. Used hugging face, weights and biases for the first time. Fine-tuning has changed a lot since my uni days 👴
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Feb 22
#Gemini3HackathonTokyo was fun.
Used a bunch of Gemini APIs, learned about audio video manipulation. Need to catch up on claude skills.
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Feb 20
Me when preparing a 30 min talk
- Start writing
- Oh god, 30 mins is a lot of time
- Write more, more research
- Oh god, 30 mins is not a lot of time
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Feb 8
TIL about Teal organizations: companies that exhibit self-management, wholeness and evolutionary purpose.
iberdrola.com/talent/teal-or…
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Jan 7
Unempowered Accountability:
A phenomenon of holding people responsible for outcomes without giving them the power to make decisions.
I'm going to avoid it like the plague.
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6 Dec 2025
An AI overview, just for me ?
Accidentally entered my github repo on google search, and Google's AI decided to show a lovely overview. It's pretty accurate, except that the picture isn't me, it's a college mate 😂
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6 Dec 2025
The remaining overview. It pulled information from several sources, so some information is dated.
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6 Dec 2025
"And you know what’s funny? When senior engineers do this well, it looks easy. Like nothing was even done. The project just… goes smoothly."
My recent promotion project was similar. 0 lines of code written in 2 months (of 6), but 30 slack @'s everyday.
terriblesoftware.org/2025/11…
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5 Dec 2025
My new favorite acronym to use is HAIL
H: Honesty
A: Authenticity
I: Integrity
L: Love
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