Gemma Barlow
Staff Engineer (iOS) at Square
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolGemma Barlow is a Staff iOS Engineer based in New York with 12 years of experience building and leading mobile teams across product and platform work for iOS, tvOS and watchOS. She has driven large-feature deliveries (notably Peloton’s Programs and the Strength+ app) and operational improvements such as migrating CI to GitHub Actions and streamlining App Store release workflows. At Square she focuses on mobile performance and reliability, bringing a pragmatic blend of hands-on engineering, test automation, and platform thinking. Gemma mentors peers through initiatives like iOS Staff Engineer Office Hours and has management experience growing cross-platform app teams at Etsy. A longtime contributor to mobile tooling and testing, she’s improved UI test suites for popular open-source projects like FSCalendar—proof of a detail-oriented approach to quality. Her background in research IT and multilingual studies hints at a thoughtful, systems-level perspective and strong communication across teams.
12 years of coding experience
10 years of employment as a software developer
The University of MelbourneMasters (Research) Information Technology, Masters (Research) Information Technology at Monash University
English, French, sign languages (uk)
Stackoverflow
832reputation
117kreached
15answers
1question
Github Skills (13)
uitest10
swift10
ios10
ui-testing10
xctest10
testing10
objective-c8
calendars7
cocoapods6
xcode6
macos6
iphone6
storekit6
Programming languages (6)
Github contributions (5)
WenchaoD/FSCalendar
Apr 2017 - Apr 2017
A fully customizable iOS calendar library, compatible with Objective-C and Swift
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:6 commits, 5 PRs, 11 comments in 1 day
Contributions summary:Gemma primarily focused on improving the test suite for the iOS calendar library. They added a helper method to address test failures on specific simulators and refactored a large test into smaller, more manageable units. The contributions also included adjustments to formatting to align with repository style. The work involved modifying and enhancing existing UI tests.
cocoapodsobjective-ccalendarcustomizableswift
gemmakbarlow/swiftris
Mar 2017 - Aug 2020
Contributions:4 PRs, 10 pushes, 6 branches in 3 years 5 months
built-inblocswifttetris-clone
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