Kajetan Puchalski
Software Engineer at Arm
Manchester, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolKajetan Puchalski is a software engineer and University of Glasgow software engineering student with nine years of hands-on experience across embedded and application-level projects, now working at Arm. He is polyglot in languages including Rust, Java/Kotlin, C, Python, TypeScript and Dart, and has shipped mobile (Flutter, Android), web (React, Django/Rails) and backend systems with PostgreSQL, SQLite and MongoDB. At Arm he progressed from part-time undergraduate roles to a permanent engineering position, bringing practical knowledge of Linux/macOS workflows and industry best practices. An active open-source contributor, he has worked on the Rust compiler to improve aarch64 target feature support and CI for AArch64 runners—demonstrating low-level systems expertise beyond typical application work. Fluent in English, French and Polish and learning German and Dutch, he combines technical curiosity with rapid language and tool adoption, making him adaptable to diverse teams and projects.
9 years of coding experience
7 years of employment as a software developer
Software Engineering Computer Software Engineering, Software Engineering Computer Software Engineering at University of Glasgow
Stackoverflow
1reputation
0reached
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0questions
Github Skills (15)
compiler-development10
arch10
cpu-architecture10
rust10
architectures10
architecture10
computer-architecture10
llvm10
lang9
system9
compiler-compiler9
compiler9
cicd7
automations7
automation7
Programming languages (19)
Github contributions (5)
rust-lang/rust
Mar 2017 - Feb 2025
Empowering everyone to build reliable and efficient software.
Role in this project:
Back-end Developer & System Architect
Back-end Developer & System ArchitectContributions:18 reviews, 14 PRs, 95 comments in 8 years
Contributions summary:Kajetan's contributions primarily revolve around enhancing the Rust compiler, specifically in target feature support for aarch64 architecture. They added and removed various aarch64 features, addressing LLVM compatibility and stability. The work includes modifying target feature definitions, updating runtime detection tests, and adjusting code generation to accommodate new instructions. Additionally, they have implemented configurations for editors like Emacs and Helix and configured CI builds to run on AArch64 runners.
crategarbage-collectionrustreliablecompiler
mrkajetanp/lisa
Jul 2022 - Sep 2023
Linux Integrated System Analysis
Contributions:103 pushes, 20 branches in 1 year 2 months
system-analysisintegratedanalysislinuxperformance-tuning
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