KatherineĀ Bertelsen
Senior Software Engineer at Bitwarden
Missouri, United States
Summary
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Top SchoolKatherine Bertelsen is a Senior Software Engineer based in Missouri with a long-standing focus on iOS development and a background that spans embedded back-end systems through modern mobile apps. She spent a decade building production iOS applications at World Wide Technology and recently joined Bitwarden, bringing practical experience shipping customer-facing and internal apps. Her early career at AT&T involved low-level C/Pro*C daemons, Perl/Oracle tooling, and Java-based web and GUI systems, giving her a rare full-stack perspective that informs robust mobile architecture and backend integrations. Comfortable across multiple languages and toolchains, she combines pragmatic problem-solving with disciplined engineering practices. Colleagues value her steady delivery and the way she leverages legacy systems experience to simplify modern app problems.
2 years of coding experience
17 years of employment as a software developer
B.S., Computer Science, B.S., Computer Science at Truman State University
Stackoverflow
3,900reputation
239kreached
8answers
7questions
Github Skills (40)
kotlin10
cli10
javascript10
ios10
electron10
jetpack10
ipad10
browser-extension10
safari10
typescript10
mobile-application10
firefox10
password-manager10
android10
authenticator10
Programming languages (6)
Github contributions (5)
bitwarden/authenticator-ios
May 2024 - Feb 2025
The Bitwarden Authenticator app moved to https://github.com/bitwarden/ios !
Contributions:123 reviews, 80 PRs, 133 pushes in 9 months
authenticatorios2faswifttotp
KatherineInCode/Dotfiles
Feb 2024 - Jul 2026
Contributions:53 pushes in 2 years 5 months
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