Haim Gelfenbeyn
Staff Engineer at Apple
Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolHaim Gelfenbeyn is a Staff Engineer with over 25 years of hands-on experience building systems from low-level OS internals to cloud-native architectures, currently at Apple. He excels at setting long-term technical strategy, de-risking complex cross-team dependencies, and mentoring engineers to raise code quality and autonomy. His background includes shipping kernel-level drivers and antivirus detection algorithms as well as modern full-stack applications, reflecting rare breadth across system layers. A pragmatic "get things done" leader, he balances pursuit of engineering excellence with practical delivery and has even turned a $30 USB switch into a cross-platform multi-monitor KVM through his open-source work. Based in Ontario, Canada, Haim pairs deep technical craft with strong communication and a continual appetite for learning.
11 years of coding experience
29 years of employment as a software developer
Studies towards Bachelor’s Degree Computer Science / Mathematics, Studies towards Bachelor’s Degree Computer Science / Mathematics at Tel Aviv UniversityTechnological certificate Artificial Intelligence and Knowledge Systems, Technological certificate Artificial Intelligence and Knowledge Systems at Karari Real Sciences School. Rishon Le Zion, Israel
English, Russian, Hebrew, Ukrainian
Stackoverflow
4,565reputation
183kreached
46answers
17questions
delphi
top-5%
Github Skills (14)
windows10
rust-lang10
macos10
rust10
delphi9
swift9
iokit9
configuration-management9
bandwidth6
git6
git-filter-branch6
android6
ruby-on-rails6
32bit-64bit6
Programming languages (13)
Github contributions (5)
haimgel/display-switch
Jul 2020 - Aug 2022
Turn a $30 USB switch into a full-featured multi-monitor KVM switch
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:7 releases, 42 reviews, 115 commits in 2 years 1 month
Contributions summary:Haim implemented core functionality for a multi-monitor KVM switch, developing both MacOS and Windows versions of the application. This involved setting up the foundation, implementing the main application logic, and integrating USB device detection for triggering display switching. The user also added configuration loading and saving, as well as a basic logging mechanism to the application.
usb-switchfull-featuredmonitorwindowskvm
haimgel/home-assistant
Jul 2017 - Jun 2023
:house_with_garden: Open-source home automation platform running on Python 3
Contributions:13 pushes, 2 branches in 5 years 11 months
raspberry-pipythonhousegardenmqtt
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.