Christopher Drum is a Senior iOS Engineer based in Chiyoda, Japan, with nearly 20 years of software experience and 11 years focused on mobile engineering. He has shipped production iOS work across startups and scale-ups including SmartNews and BONX, and is fluent in Swift, Objective-C, C, and Lua. Beyond development he blends technical writing, design, and developer productivity skills—comfortable with Unix/macOS/Windows toolchains, CI, and observability. An avid software archaeologist and retrocomputing enthusiast, he documents productivity software preservation and ports classics to Pico-8 on his Stone Tools blog, a niche focus that highlights deep historical knowledge rather than games. He also brings cross-cultural experience, speaking English and Japanese, and a track record of mentoring and tooling that helps teams move faster.
11 years of coding experience
23 years of employment as a software developer
Continuing Education, Continuing Education at Berkeley City College
Continuing Education, Continuing Education at Big Nerd Ranch
Completed through Intermediate 6, Completed through Intermediate 6 at Soko Gakuen
Continuing Education, Continuing Education at San Francisco State University
Bachelor of Arts (BA), Bachelor of Arts (BA) at University of North Carolina at Charlotte
Continuing Education, Continuing Education at Berkeley College
A z-machine interpreter, written in Lua, for the Pico-8
Contributions:12 PRs, 251 pushes, 16 branches in 2 years 11 months
lua8bita-zpico-8retrocomputing
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