Jack Styles
Software Engineer at Arm
Ely, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolJack Styles is a software engineer at Arm with a strong focus on LLVM-based compiler work and architecture-specific improvements, backed by a Degree Apprenticeship and a first-class BSc in Software Engineering. Over four years at Arm he progressed from embedded and ML performance analysis to contributing upstream LLVM changes that improve AArch64 behavior, pointer authentication handling, and libc++ testing. He pairs hands-on C++/compiler expertise with ownership of production-facing features in Arm Compiler for Embedded, demonstrating both deep systems knowledge and practical delivery. Outside work he runs an international sim-racing eSports team and serves as a Race Director and Steward for professional series, showing leadership in high-pressure, real-time decision-making. This blend of low-level compiler development and event operations highlights an unusual mix of technical depth and people-focused orchestration.
2 years of coding experience
4 years of employment as a software developer
A Levels, Maths/Physics/Computer Science, B/B/B, A Levels, Maths/Physics/Computer Science, B/B/B at Sir Isaac Newton Sixth Form CollegeBSc(Hons) Digital Technology Solutions (Software Engineering), Computer Software Engineering, 1st Class Honours, BSc(Hons) Digital Technology Solutions (Software Engineering), Computer Software Engineering, 1st Class Honours at University of RoehamptonGCSE's, GCSE's at Long Stratton High School
Github Skills (7)
arm10
c-language10
cprogramming-language10
llvm10
compiler-optimization9
dwarf8
elf7
Programming languages (4)
Github contributions (5)
llvm/llvm-project
Oct 2023 - Mar 2025
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:77 reviews, 29 PRs, 20 pushes in 1 year 5 months
Contributions summary:Jack primarily contributed to the LLVM project, focusing on improving the compiler and toolchain technologies. Their work involved improving libc++ tests, updating AArch64 instruction behavior, and adding addend checks for ARM instructions, and introducing a new command-line option for GCS. They also addressed issues related to pointer authentication and DWARF instructions. The contributions demonstrate a focus on compiler optimization and architecture-specific improvements.
compilerstechnologiesclangsubmittoolchain
Stylie777/llvm-project
Jan 2024 - Apr 2025
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
Contributions:55 pushes, 12 branches, 1 tag in 1 year 2 months
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