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About Me

Since I lack a conference bio to reuse, you'll have to make do with my responses from a recent icebreaker.
My name is Marcus Plutowski, I'm from California; my fun fact is that I've met Joe Biden.

My own self c. 2019

I'm currently employed by Apple, working on hardware-software codesign as part of the JavaScriptCore team. My title is "Senior JavaScript Virtual Machine Compiler Engineer" but I probably spend most of my time writing allocator code in C - particularly libpas, WebKit's all-in-one inhouse memory allocator. Before this I worked on GPGPU software and architecture at Rivos (since acquired by Meta). Before obtaining gainful employment, I studied at UC Berkeley.

Outside of work, I keep myself busy with projects, reading (particularly medieval history), sending lengthy screeds to my friends, and, as of late, wedding planning. I have a great fondness for California, the land of my birth, and especially its unique natural beauty. In former years I ran an educational 501(c)3 charitable non-profit, Valkyrie Robotics.

My Writing

The first purpose of this blog is to unburden my head of thoughts without straightaway transferring that burden my friends' DMs, ever-patient as they are with my discursions. Consequently I write about a variety of topics, including system software, medieval history, economic and political history more broadly, AI safety, and philosophy.

© 2025-2026 Marcus Plutowski

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