Next availability:
June 13, 2026
I’m Ling Ho Hung, a programming enthusiast with over 10 years of self-taught experience, currently an iOS Developer at Boohoo in Manchester. I enjoy turning ideas into robust, testable code and collaborating closely with UX/UI and backend teams to deliver features that work well across multiple brands and markets.
Beyond work, I tinker with Arduino, Python for machine learning, and cross-platform Flutter/Dart projects, always eager to learn new technologies and share what I learn through code reviews and practical projects.
Skills
Language
English
Fluent
Work Experience
iOS Developer at Degree53 / Bally’s Interactive
August 31, 2022 - September 10, 2025Developed iOS apps using Swift with UIKit and SwiftUI. Built views programmatically (no storyboard), using MVVC for UIKit and MV for SwiftUI. Conducted code reviews, integrated Firebase Analytics, and used RxSwift and Combine for reactive programming. Delivered features for new games, collaborated with UX/UI and backend teams, investigated Crashlytics, fixed memory leaks, wrote unit tests, and created builds for TestFlight. Presented to clients and handled API calls/JSON during integration.
iOS Developer at Centaline Property Agency Limited
January 1, 2021 - September 10, 2025Developed features for a large Hong Kong property app, fixed bugs, and collaborated with teams in China. Implemented features such as 3D viewing and live chat, worked with backend teams, used UIKit with SnapKit and storyboard, and handled API calls/JSON. Focused on performance, memory optimization, and stability for widespread use in Asia.
iOS Developer at Boohoo Group (Debenhams Group plc)
September 1, 2022 - PresentDeveloped and maintained iOS apps using Swift with strict concurrency (Swift 6.2), UIKit/SwiftUI, Storyboard/xib, and programmatic AutoLayout; set up CI/CD with GitHub and App Center; implemented memory-management fixes, bug fixes, and feature updates (e.g., replacing AWS notification with Bloomreach, adding Firebase services, integrating Clearpay SDK); collaborated with UX/UI and backend teams; created and maintained build scripts; called APIs and handled JSON; performed testing across countries and brands; contributed to testing and code reviews.
iOS Developer at Degree53 / Bally's Interactive
May 1, 2021 - August 1, 2022Maintained and developed iOS apps using Swift with UIKit/SwiftUI; built views programmatically (MVVC for UIKit, MV for SwiftUI); performed code reviews; integrated Firebase Analytics; used RxSwift and Combine; added features for new games; implemented push notification support; fixed memory leaks; created unit tests and managed builds/TestFlight; collaborated with UX/UI and backend teams; performed API calls and JSON handling.
iOS Developer at Centaline Property Agency Limited
January 1, 2020 - January 1, 2021Developed iOS features and fixed bugs; collaborated with teams in China; added 3D viewing and live chat features; used UIKit with SnapKit and storyboard; called APIs and handled JSON; optimized performance and memory usage; ensured stability for an Asia-focused app with Virtual Tours.
iOS Developer at Boohoo
September 1, 2022 - PresentLead iOS development for Boohoo's white-label mobile app, supporting multiple brands (Boohoo, BoohooMan, Karen Millen, Nasty Gal, Coast, Warehouse, Oasis, MissPap). Built with Swift using UIKit/SwiftUI, storyboards/xib, and programmatic AutoLayout. Implemented CI/CD with GitHub and App Center, tested across markets, and ensured brand compatibility. Applied MVC for testable view controllers, managed memory (ARC), fixed bugs, and added features (e.g., swapping AWS notifications to Bloomreach, integrating Firebase services, and Clearpay/Afterpay SDK). Maintained build scripts, collaborated with UX/UI and backend teams, reviewed code, called APIs, and handled JSON. Also performed performance optimizations, accessibility work, A/B testing instrumentation, and crash analytics with Crashlytics.
iOS Developer at Debenhams Group plc (Boohoo)
September 1, 2022 - PresentMaintained a white-label app used globally by BoohooGroup brands (Boohoo, BoohooMan, Karen Millen, Nasty Gal, Coast, Warehouse, Oasis, MissPap). Responsibilities included bug fixing, feature development, replacing notification services (AWS to Bloomreach), analytics event recording, integrating new payments, UI updates with UIKit/SwiftUI, implementing A/B testing, performance optimization, accessibility enhancements, Salesforce asset support, and unit tests. Worked across UK, EU, and US markets with a focus on delivering stable, scalable features.
iOS Developer at Degree 53 / Bally’s Interactive
May 1, 2021 - August 20, 2022Developed iOS apps using Swift with UIKit and SwiftUI. Used MVVC for UIKit and MV for SwiftUI. Conducted code reviews, integrated Firebase Analytics, and worked with RxSwift and Combine. Added features for new games, push notifications, and UI components; performed memory leak fixes; wrote unit tests; built and distributed TestFlight builds; presented to clients; and handled API calls and JSON parsing.
Education
Bachelor of Arts (Honours) of Business Studies at University of Greenwich
April 1, 2013 - May 1, 2014Professional Diploma in Hospitality Management at The Hong Kong Management Association
April 1, 2012 - February 1, 2013Form 5 Graduate at Catholic Ming Yuen Secondary School
September 1, 1993 - July 1, 1999Bachelor of Arts (Honours) in Business Studies at University of Greenwich
April 1, 2013 - May 1, 2014Professional Diploma in Hospitality Management at The Hong Kong Management Association
April 1, 2012 - February 1, 2013Form 5 Graduate at Catholic Ming Yuen Secondary School
September 1, 1993 - July 1, 1999Bachelor of Arts (Honours) of Business Studies at University of Greenwich, United Kingdom
April 1, 2013 - May 1, 2014Professional Diploma in Hospitality Management at The Hong Kong Management Association
April 1, 2012 - February 1, 2013Form 5 Graduate at Catholic Ming Yuen Secondary School
September 1, 1993 - July 1, 1999Qualifications
Advanced Certificate in Wines and Spirits (Pass with Distinction)
February 1, 2009 - May 1, 2009Intermediate Certificate in Wines and Spirits (Pass with Distinction)
June 1, 2008 - September 1, 2008Advanced Certificate in Wines and Spirits (Pass with Distinction)
February 1, 2009 - May 1, 2009Intermediate Certificate in Wines and Spirits (Pass with Distinction)
June 1, 2008 - September 1, 2008Advanced Certificate in Wines and Spirits (Pass with Distinction)
February 1, 2009 - May 1, 2009Intermediate Certificate in Wines and Spirits (Pass with Distinction)
June 1, 2008 - September 1, 2008Industry Experience
Software & Internet, Retail, Media & Entertainment, Professional Services, Education
Skills
Hire a App Developer
We have the best app developer experts on Twine. Hire a app developer in Manchester today.