I've been developing websites for most of my career starting at Japan Airlines moving on to the scientific journal Nature, Amazon and Microsoft. After leaving Microsoft, I developed a CMS called Mirai Gaia that would not only cater for my own needs but for the needs of my clients too.
I started out building Mirai Gaia in PHP+MYSQL but now we have migrated to Ruby on Rails+PostgreSQL.
For some of my clients, we also maintain their social media networks like Facebook and Twitter too. My clients are mostly in the anime industry and include Production IG, King Records, Good Smile Company, Bushiroad, Kadokawa, Ascii Media Works, Yuzu Soft, SEGA and more.