Si Ma
Sr IOS Developer at Revolut
London, England, United Kingdom
Summary
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SeniorSi Ma is a senior iOS developer based in London with 11 years of experience designing mobile architecture and shipping polished Swift and Objective-C apps for companies like Revolut, Curve and eBay. He combines hands-on UI/UX sensibility—proven by Sketch-led design work and a custom Swift segmented control on GitHub—with leadership in Agile teams, technical interviewing, and mentoring across enterprise and fintech projects. Experienced across the Apple ecosystem (iOS/watchOS/tvOS) and comfortable with full-stack concerns, he often drives system design and backend/API conversations as well as front-end React work. Recognized internally with awards at eBay, he brings a pragmatic mix of product-minded design and scalable engineering practices to fast-moving teams.
11 years of coding experience
10 years of employment as a software developer
Chinese, English
Github Skills (6)
reference-implementation10
swift10
uikit10
ios10
implement10
ui-design8
Programming languages (3)
Github contributions (5)
sima-11/SMSegmentView
Jan 2015 - Mar 2018
Custom segmentedControl for iOS written in Swift. Supports vertical layout. Support both image and text. Highly customisable.
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:7 releases, 30 commits, 5 PRs in 3 years 2 months
Contributions summary:Si primarily contributed to the development of an iOS custom segmented control. Their commits demonstrate work on the user interface, including layout adjustments, styling, and the addition of image and text elements. They also addressed auto-rotation support and made modifications to the segment's appearance and functionality. The contributions primarily involve Swift and UIKit for building the UI component.
iossegmented-controlswift
sima-11/EbayTest
Nov 2016 - Nov 2016
Contributions:33 pushes, 1 branch in 14 days
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