Jonathan Hersh
Senior Software Engineer at Apple
Cupertino, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJonathan Hersh is a senior software engineer with 15 years of experience building production-quality iOS apps and SDKs, currently based in Cupertino and working at Apple. He has a strong track record as a founding and lead mobile engineer—shipping consumer apps at IFTTT and Zumper, running his own indie studio Splinesoft, and contributing to large SDKs like SalesforceMobileSDK. Jonathan pairs hands-on engineering with disciplined testing and automation, evidenced by extensive QA and snapshot test contributions to well-known open-source iOS projects such as TTTAttributedLabel and JazzHands. He brings deep expertise in asynchronous APIs, refactoring, and accessibility, and is comfortable owning features from prototyping through release. Educated at Carnegie Mellon with both BS and MS in Information Systems, he blends academic rigor with practical product experience across startups and enterprise.
15 years of coding experience
5 years of employment as a software developer
BS, Information Systems, BS, Information Systems at Carnegie Mellon University
Stackoverflow
1,073reputation
15kreached
12answers
2questions
Github Skills (19)
unit-testing10
uitest10
objective-c10
ios10
ocmock10
ui-animation10
xctest10
sdk10
rest-api10
swift10
ui-testing10
salesforce9
uikit9
accessibility8
hyperlink6
Programming languages (9)
Github contributions (5)
IFTTT/JazzHands
Nov 2013 - Apr 2015
A simple keyframe-based animation framework for UIKit. Perfect for scrolling app intros.
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:2 releases, 44 commits, 7 PRs in 1 year 5 months
Contributions summary:Jonathan primarily contributed to the iOS mobile application, "JazzHands," a keyframe-based animation framework. Their work included adding snapshot tests for the animator, cleaning up headers, and making minor code cleanup. The user also integrated accessibility features and made code style improvements.
animationkeyframe
TTTAttributedLabel/TTTAttributedLabel
Dec 2014 - Jul 2015
A drop-in replacement for UILabel that supports attributes, data detectors, links, and more
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:4 releases, 104 commits, 30 PRs in 7 months
Contributions summary:Jonathan primarily contributed to the test suite for the TTTAttributedLabel library. They added various tests, including snapshot tests, tests for vertical alignment, link detection, delegate methods, text insets, label shadow radius, and attributed strings. They also implemented tests to ensure proper handling of long presses and to verify the correct behavior of link tap/long press blocks, demonstrating a strong focus on thorough testing of the library's features.
uilabel
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