About Me


Hey there, I’m Juanito from Taiwan and @JuanitoFatas everywhere on the internet.

I was born and raised in Taipei. Have lived in Belgium. Moved to Tokyo in 2017. Moved to Kyoto in 2020. On this site I share about things I do or like: eating, cooking, food, travels, Japan, Japanese, software engineering, life-style tips, and programming.

I’m easy-going, progressive, future-focused, pleasure-focused, and sensitive/cautious person. My personal mission is to be useful and helpful to as many people as possible. My personality type is INFP-T. My emotional assessments result. My pronoun is he/him/his.

I currently live in Kyoto, Japan.

Juanito Fatas?

It is a name I impersonated. My online persona. Name looks like Spanish or Filipino, but the first name was given by a friend from Zaragoza. My real last name Huang, pronounced similar to Juan in Spanish. My friends and I became close, so they called me Juan-ito. Fatas is inherited from another close friend at that time. I use this name for too long, Juanito Fatas became my identity on the internet. It also makes me remember the good old days we spent together studying in Belgium. And I love Spain!


I am an engineer at Buildkite. Doing product work. A CI service you should try if you have not.

I sometimes spend spare time contributing to Open Source, meeting people at community events, attending & speaking at meetups and conferences.

More of at the moment activities please see my now page. What I use, please see my uses page. My ruby recommendations, please see ruby.

Before Software Engineering

I have worked a lot of jobs for living. Flaky scallion pancakes maker at university restaurant, internet cable guy, bartender in Southern Belgium border, IT guy in high school, a research assistant in university, electronics engineer, and amateur translator. I grew up in Taiwan.

I went to universities in Taipei, Taiwan, and Leuven, Belgium studied Electronics Engineering. Went to Army for a year (Enlisted military service, Air Force). The army had reset everything I learned (forgot), so I learned programming and started working professionally since 2013.

Amateur Translator

In the early days, I was influenced by contributing to documentations first. So I translated a lot of documents. I translated Ruby on Rails Doctrine, Ruby on Rails Guides, Rails Girls Guides, Google Common Lisp Style Guide, and a ANSI Common Lisp book. Translations taught me the basic of programming through Lisp, to pay attention to details, proficient in many markup languages, and all sorts of Git techniques.

I like acquiring languages

I speak Mandarin, Taiwanese, and English. I can understand Cantonese. My Japanese is conversational at intermediate level. I was living in a Flemish city Leuven, Belgium for 2 years. I have failed attemps learning Dutch, Spanish, French, Greek, Italian, and Korean.

I enjoy cooking

Cooking is my stress coping mechanism.

Dishes I can cook well: Mapotofu, Carbonara, Sundubu Jjigae, Japanese Curry, cup noodle (cup noodle is only tasty if you cook it!), spicy roasted beef, cacio e pepe, varies version of dandan noodle, Twice Cooked Pork, stir-fry green vegetables, stir-fry rice, kimichi pork, karaage (japanese fried chicken), Italian Ragu, Minced Pork Rice, Beef Bourguignon, dumplings, dan bing...


This site (sitemap) is running on main branch of Ruby on Rails 6.2.0.alpha, hosting on Heroku. Running on a 1X dyno with following configs:


It’s deployed automatically to Heroku when CI passed on Buildkite.com that triggers a deployment. No analytics/tracking whatsoever. So please email me or tweet at me for any feedback.