tubo28

Last updated: August 2025

I'm a software engineer based in Tokyo, who enjoys not only building meaningful products, but also exploring technology for its own sake.

東京で働くソフトウェアエンジニアです。

Why I write each programming language
Language For fun :) For salary :p
C ✓
F# ✓
Go ✓ ✓
Haskell ✓
Java ✓
JavaScript ✓
Perl ✓
PHP ✓
Ruby ✓ ✓
Rust ✓
Scala ✓ ✓
Scheme ✓
TypeScript ✓ ✓
Zig ✓

Handle

tubo28 or つぼ

Miscellaneous

Album

My daughter and cows on a farm, July 2025.
My daughter and cows on a farm, July 2025.
My newborn son, June 2025.
My newborn son, June 2025.
Chirihama Beach, May 2025.
Chirihama Beach, May 2025.
Hydrangea (Ajisai) garden, May 2025.
Hydrangea (Ajisai) garden, May 2023.
My newborn daughter, August 2023.
My newborn daughter, August 2023.
SPAM cans in COSTCO, December 2022.
SPAM cans in COSTCO, December 2022.
Kabukiza Tower Buliding, December 2022.
Kabukiza Tower Buliding, December 2022.
A piranha in Kawasui Kawasaki Aquarium, Octover 2022.
A piranha in Kawasui Kawasaki Aquarium, Octover 2022.
A mask on a wall, February 2021.
A mask on a wall, February 2021.
Tombs in a bamboo forest, August 2018.
Tombs in a bamboo forest, August 2018.
Cherry blossoms lining Sendai Hirikawa River, Koto, April 2018.
Cherry blossoms lining Sendai Horikawa River, Koto, 2018.
ICPC Asia Tsukuba, Octover 2016.
ICPC Asia Tsukuba, Octover 2016.