Looking for a job

Eisen EWS

@eisenews

iOS Software Engineer at Galaxy Entertainment modernizing OneGalaxy with SwiftUI and MVI, from sign-up to hotel and restaurant reservations.

Hong Kong

Message

At Galaxy Entertainment, I’m modernizing the OneGalaxy iOS application by transitioning its legacy UIKit and MVC architecture to SwiftUI and MVI while preserving interoperability with the existing codebase.

I co-designed and developed the app’s Onboarding, Login, and Sign-Up modules, along with hotel and restaurant reservation modules integrated with enterprise APIs. I also refactored the app using protocol-oriented techniques to improve performance and reduce technical debt.

At TVB New Media Group (NMG) Limited, I engineered a custom video player for VOD and live streaming using AVFoundation, HLS, and Metal. I also built an advertisement framework integrating Google IMA and Google Mobile Ads SDKs.

At Core Pacific Yamaichi(H.K.) Limited, I maintained the CPYGo iOS application and modernized its stock portfolio panel. I also architected an enterprise web service using ABP, .NET, C#, Blazor, Domain-Driven Design, and Entity Framework Core.

Experience

Work history, roles, and key accomplishments

Current

iOS Software Engineer

Current

Galaxy Entertainment

Feb 2026 - Present (8 months)

Engineered the revamped OneGalaxy iOS application, transitioning legacy UIKit and MVC to SwiftUI and MVI. Designed reactive data-flow architecture, developed modules including Onboarding, Login, and Sign-Up, and integrated scalable reservation modules with backend APIs.

SwiftUI MVI UIKit Swift Concurrency Combine Protocol Oriented Programming (POP)REST APIs

Senior Analytics Programmer

Core Pacific Yamaichi (H.K.) Limited

May 2025 - Oct 2025 (5 months)

Maintained and enhanced the CPYGo iOS application, modernizing the stock portfolio panel and integrating financial market APIs. Architected a full-stack enterprise web service using ABP, .NET, C#, and Blazor with Domain-Driven Design.

iOS Swift C#.NET Blazor ABP Domain Driven Design Entity Framework Core REST APIs

iOS Software Engineer

TVB New Media Group (NMG) Limited

Apr 2021 - Nov 2024 (3 years 7 months)

Engineered a high-performance custom video player for VOD and live streaming using AVFoundation, HLS, and Metal. Built a proprietary advertisement framework integrating Google IMA and GMA SDKs.

AVFoundation Video Streaming (HLS m3u8)Metal Google IMA Google GMA iOS

Junior Software Developer

The Chinese University of Hong Kong

Apr 2019 - Aug 2020 (1 year 4 months)

Maintained the iOS version of KEEPoll App, developed QR code scanner feature using AVCaptureSession, and handled RESTful events for 2FA token exchanges using Swift Codable.

iOS Swift AVCaptureSession REST APIs Codable