Ingmar Stein

Senior Staff Software Engineer at Google

Zurich, Zurich, Switzerland
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Summary

👤
Senior
🎓
Top School
Ingmar Stein is a Staff Software Engineer based in Zurich with 22 years of experience blending hands-on engineering, architecture and team leadership across finance, consulting and tech giants including Google. He has led mobile and banking-connection initiatives, scaled teams up to 18 people, and transitioned between senior management and deep technical roles—evidencing comfort with both strategy and implementation. His background spans embedded static analysis research (PhD-level work) to shipping cross-platform mobile architectures and production-grade backend and test automation code in Swift open-source projects. Known for a pragmatic focus on quality, he pairs strong testing discipline with a passion for mobile innovation and often moves between technical ownership and program-level leadership.
code22 years of coding experience
job23 years of employment as a software developer
bookDoktor der Ingenieurswissenschaften, Informatik, Doktor der Ingenieurswissenschaften, Informatik at Universität des Saarlandes
languagesEnglish, German, French
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Github Skills (15)

unit-testing10
command-line-interface10
swift10
command-line10
testing10
parsing9
json9
xcode8
java6
objective-c6
ios6
gson6
cocoa-touch6
macos6
iphone6

Programming languages (19)

C#JavaC++RustCGoErlangTypeScript

Github contributions (5)

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jatoben/CommandLine

Jun 2015 - Dec 2016

A pure Swift library for creating command-line interfaces
Role in this project:
userBack-end Developer & Test Automation Engineer
Contributions:23 commits, 4 PRs, 10 comments in 1 year 6 months
Contributions summary:Ingmar primarily contributed to the `commandline` library by implementing new features such as strict mode parsing to validate command-line arguments. They also ensured compatibility with Swift 3 and updated the codebase to support newer Xcode versions. Furthermore, the user wrote and updated unit tests to verify functionality and ensure the reliability of the library's core features, demonstrating a strong focus on testing and code quality.
command-line-interfaceswiftswift-librarycommandline
IngmarStein/homebrew-core

Apr 2025 - Apr 2026

🍻 Default formulae for the missing package manager for macOS (or Linux)
Contributions:120 pushes, 27 branches in 1 year
linuxmacospackage-manager
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