Ben is available for hire

Ben Leung

Verified Expert in Engineering

Full-stack Developer

Location

Hong Kong, Hong Kong

Toptal Member Since

July 5, 2022

Ben is an experienced full-stack developer specializing in Android and iOS app development. With six years of mobile app expertise and three additional years in back-end development, he boasts a wealth of experience. Ben's impressive career includes delivering successful projects across various sectors like banking, travel, and employment. His skills encompass both front-end and back-end development, allowing him to create robust and efficient applications.

iOS Video CSS Android iOS Swift Web Scraping Java Retrofit REST APIs MySQL Node.js SQL Firebase Kotlin Glide

Portfolio

HSBC Hong Kong

Android, Kotlin, Java, iOS, Swift, OkHttp, Retrofit, Glide, Mobile Development

HSBC Hong Kong

Android, iOS, Java, Swift, Kotlin, Mobile Development

Cathay Pacific

Android Studio, Java, Node.js, Swift, Mobile Development, iOS Video

Experience

Java - 6 years Android - 6 years Mobile Development - 6 years Node.js - 4 years Swift - 4 years MySQL - 4 years iOS - 4 years Kotlin - 2 years

Availability

Part-time

Preferred Environment

MacOS, Android Studio, Kotlin, Java, Visual Studio Code (VS Code), Node.js, MySQL, Xcode, Swift, Electron, HTML, CSS

The most amazing...

...thing I've created entirely on my own is my mobile app, Hong Kong Radio Schedule, which has more than 70,000 downloads.

Work Experience

Technical Product Manager

2021 - 2022

HSBC Hong Kong

Participated in developing a new QR code cash withdrawal feature for the HSBC mobile banking app.
Managed a team and worked on the development and release process of the HSBC Reward+ app, a customer-facing credit card point management app.
Headed an off-shore development team in China to ensure the project's progress and review code quality.

Technologies: Android, Kotlin, Java, iOS, Swift, OkHttp, Retrofit, Glide, Mobile Development

Full-stack Engineer

2019 - 2021

HSBC Hong Kong

Participated in HSBC mobile banking app revamp, involving the convergence of a single code-base across all entities for the HSBC.
Worked on developing new features for the HSBC Reward+ app, including China UnionPay QR code payment and mileage redemption.
Optimized the app architecture of the HSBC Reward+ app with a faster app launch time.

Technologies: Android, iOS, Java, Swift, Kotlin, Mobile Development

Senior Mobile Developer

2019 - 2019

Cathay Pacific

Enhanced customers' in-flight experience by developing new app features.
Delivered new features and optimized the app by fixing bugs with Jira.
Researched video-on-demand catalogs and video streaming for in-flight experience with SDK provided by the vendor.

Technologies: Android Studio, Java, Node.js, Swift, Mobile Development, iOS Video

Mobile Application Developer

2015 - 2019

Innopage

Developed and delivered a number of projects, including an Android app, iOS app, API written in Node.js, and websites with a content management system (CMS).
Collected requirements from project managers and the client and provided suggestions for the technical design.
Delivered projects under a tight timeline and fast-changing requirements.

Technologies: Android, iOS, Java, Swift, AngularJS, Node.js, NGINX, Mobile Development, HTML, CSS

Experience

Hong Kong Radio Schedule

https://radio.benleungcreative.com/

Hong Kong Radio Schedule is my self-initiated project. I started this project when I was studying at the university and used Android as my first entry point to mobile app development. Also, I've improved the project from time to time, working on the third-party managed back end or self-hosted server. This app has been downloaded more than 70 thousand times in total for both iOS and Android.

Skills

Languages

Swift, HTML, CSS, Kotlin, Java, SQL

Paradigms

Mobile Development

Platforms

Android, iOS, Firebase, MacOS, Visual Studio Code (VS Code)

Other

iOS Video, OkHttp, APIs, Web Scraping, Programming, Data Structures, Video Streaming, FPGA, Microprocessors

Frameworks

Glide, Express.js, Electron, AngularJS, Flutter

Libraries/APIs

Retrofit, Node.js, REST APIs, Facebook API, jQuery, Vue

Storage

MySQL, Databases

Tools

Android Studio, Xcode, NGINX

Education

2010 - 2014

Bachelor's Degree in Computer Engineering

City University of Hong Kong - Hong Kong, Hong Kong

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