Jake Petroules
Engineering at Apple
Cupertino, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJake Petroules is an experienced software engineer and engineering leader with roughly two decades in software development and 16 years in professional roles, currently focused on build systems and developer productivity at Apple in Cupertino. He co-founded a data security company and served as CTO, combining hands-on cryptography and product work with e-commerce and infrastructure responsibilities. As a long-time Qt contributor and former consultant for The Qt Company, he maintains deep cross-platform and Apple-platform expertise, having submitted well over a thousand patches and stewarded macOS/iOS/tvOS/watchOS support. His open-source footprint spans critical build and tooling projects—llbuild, SwiftPM, Sparkle, Qt modules and Homebrew—where he’s fixed subtle build, compatibility, and memory issues that improve reliability for many downstream users. Colleagues rely on him for pragmatic system-level fixes and build tooling design, and he brings the polish of UI-level refinements alongside low-level build automation improvements.
15 years of coding experience
4 years of employment as a software developer
Computer Science, Computer Science at Keene State CollegeComputer Science, Computer Science at Massachusetts Institute of TechnologyComputer Science, Computer Science at Stanford University
English, Chinese
Stackoverflow
23,810reputation
1.9mreached
98answers
230questions
windows
top-5%
build-process
top-5%
qt
top-5%
cmake
top-5%
architecture
top-5%
Github Skills (79)
package-management10
compiler-development10
testing10
bash10
c1110
cocoa10
c1710
build-automation10
formulas10
refactoring10
qt10
app-framework10
software-update10
os-development10
bash-shell10
Programming languages (23)
Github contributions (5)
swiftlang/swift-tools-support-core
Nov 2020 - Dec 2022
Contains common infrastructural code for both SwiftPM and llbuild.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 releases, 13 reviews, 7 commits in 2 years 1 month
Contributions summary:Jake primarily focused on improving the codebase's robustness and maintainability. They addressed Codable conformance issues in path handling by integrating validating constructors. Furthermore, the user introduced new functionalities to existing utility functions and refactored code to deprecate old features in favor of newer ones, contributing to the library's overall evolution. They also added availability annotations and cleaned up ifdefs and fixed the deployment target to match swift-tsc functionality.
infrastructuralllbuildswiftpm
swiftlang/swift-llbuild
Mar 2018 - Oct 2022
A low-level build system, used by Xcode and the Swift Package Manager
Role in this project:Back-end Developer & Automation Engineer
Back-end Developer & Automation EngineerContributions:1 release, 63 reviews, 79 commits in 4 years 8 months
Contributions summary:Jake primarily focused on improving the build system's functionality and stability. Their contributions involved fixing escaping and quoting issues within the build scripts and preventing spurious rebuilds by optimizing the version header generation. They also added features such as macros for tracing and a mechanism to override command signatures for dependency tracking. Additionally, the user refactored code and improved code quality by fixing static analyzer warnings related to memory allocation.
xcodeswift-package-managerclangbazelllbuild
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