Alexander Zhavnerchik
Staff Software Engineer at Meta
San Jose, California, United States
Summary
👤
Senior🎓
Top SchoolAlexander Kharevich is a seasoned iOS engineer with 14 years of experience building high-performance mobile apps for startups and large tech companies, currently focusing on performance optimization as a Staff/Senior iOS Engineer at Meta. He has repeatedly led migrations to modern Swift architectures—TCA, SwiftUI, and Swift Concurrency—improving launch times, memory use, and network efficiency across products from Harbor/Citizen to DraftKings. Comfortable in both product and platform roles, he’s authored SDKs, steered navigation refactors, and managed outsourced engineering teams while maintaining on-call responsibilities. His background includes roles at Amazon, Ring, and media and fintech firms, giving him deep experience across real-time audio, subscription payments, and developer tooling. He combines formal training in telecommunications with ongoing study in AI and finance, which explains his systems-oriented approach to mobile performance. Colleagues know him for turning legacy Xamarin/Objective-C codebases into modern, maintainable Swift systems that measurably lift user experience.
14 years of coding experience
17 years of employment as a software developer
Bachelor of Science (BS), Computer Science, Bachelor of Science (BS), Computer Science at Belarusian National Technical University
English, Russian
Github Skills (48)
usb-hid10
firmware10
wireless10
usb10
keyboard10
rp20409
vscode-extension9
avr9
nrf529
esp329
rust8
embedded8
serial-port8
qmk8
cortex-m8
Programming languages (7)
Github contributions (5)
goxmpp/sasl
Apr 2014 - Jun 2014
Contributions:49 commits in 2 months
alxzh/zmk-config-saurus
Sep 2025 - Mar 2026
Contributions:20 pushes in 5 months
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