John Stiles
Chapel Hill, North Carolina, United States
Summary
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SeniorJohn Stiles is a principal engineer with nine years of recent experience shaping high-performance graphics and game systems, currently leading development of the Verse language for large-scale multiplayer games at Epic Games. He previously drove SkSL shader compiler work for Skia and contributed to Chromium's imaging and Canvas2D subsystems at Google, bringing deep expertise in graphics, compilers, and performance optimization. His long tenure at Blizzard on World of Warcraft reflects a strong background in multiplayer systems and production-scale game engineering. Known for shipping pragmatic, high-impact systems, he blends low-level technical rigor with product-facing pragmatism. Based in Chapel Hill, NC, he pairs a UC Berkeley education and decades immersed in game and graphics toolchains to solve hard engineering problems. Colleagues often note his speed and focus—aptly summarized by his personal mantra, "Gotta go fast."
9 years of coding experience
Github Skills (40)
json-parser10
objective-c10
python10
ruby10
php10
dom10
cpp10
csharp10
grpc10
trailing9
catkin9
ros8
json7
serialization7
websocket7
Programming languages (8)
Github contributions (5)
StilesCrisis/rapidjson
Feb 2017 - Jun 2018
A fast JSON parser/generator for C++ with both SAX/DOM style API
Contributions:20 PRs, 61 pushes, 34 branches in 1 year 4 months
apicppsaxparser-generatorparser
StilesCrisis/6502ppc
Sep 2020 - Sep 2023
Contributions:1 push, 1 branch, 1 comment in 3 years
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