Icurrentlybuildthefloorotherengineersstandon.
But I've spent years on the other side too — building product, driving outcomes, closing the gap between what ships and what matters.
Kyungtak Woo
currently
Google · LLVM
Compilers · x86 · AArch64
before
Zillow · Lyft · Microsoft
Product · Systems · Scale
from
Seoul → Monterrey → Seattle
A home tour that closes deals.
Built the 3D Gaussian splat rendering pipeline that made Zillow's immersive tours fast enough to matter. 21% increase in sales conversions.
Zillow · 2022–2023
Product
The compiler you didn't pick still runs your code.
Tech Lead on LLVM at Google — x86, AArch64, hermetic toolchains. The build infrastructure underneath Chrome, Android, and more.
Google · 2023–present
Infrastructure
A city moved differently because a backend changed.
Designed distributed backend services connecting Lyft's autonomous and electric fleets to the coordination layer. Millions of rides downstream.
Lyft · 2020–2022
Systems
things built at the wrong layer
A migration that worked, then had to be unmigrated.
A toolchain so hermetic it locked out the person who built it.
A system that was fast until it had to be correct.
systems i depend on
Coffee, black, before 8am.
Vim motions.
The LLVM mailing list at 11pm.
Reggaeton on long compile cycles.
My mother's handwriting in recipe margins.
Mexico City's grid — the only city that makes spatial sense to me.
Monterrey in December.
The specific silence of a clean build.
If any of this is interesting to you,
the rest is easier to say over email.
education
ITESM Monterrey
Computer Systems Engineering
3.9 GPA