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Hi, I’m Huanjiao Qiu, also known as James. I’m a seasoned iOS developer with a track record of designing and shipping high-quality mobile applications using Swift, SwiftUI, and Objective-C. I’ve led architectural decisions (MVVM), API design, and automated testing across cross-functional teams to deliver robust, scalable products. I enjoy turning complex requirements into elegant, maintainable code and collaborating with product and design teams to craft engaging user experiences, from chat features and AR experiences to audio processing frameworks. I’m passionate about technical excellence and continuously learning new technologies to drive product success.…Hi, I’m Huanjiao Qiu, also known as James. I’m a seasoned iOS developer with a track record of designing and shipping high-quality mobile applications using Swift, SwiftUI, and Objective-C. I’ve led architectural decisions (MVVM), API design, and automated testing across cross-functional teams to deliver robust, scalable products. I enjoy turning complex requirements into elegant, maintainable code and collaborating with product and design teams to craft engaging user experiences, from chat features and AR experiences to audio processing frameworks. I’m passionate about technical excellence and continuously learning new technologies to drive product success.

Huanjiao QIU (James)

App Developer, Web Developer, Full Stack Developer, +2

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Hi, I’m Huanjiao Qiu, also known as James. I’m a seasoned iOS developer with a track record of designing and shipping high-quality mobile applications using Swift, SwiftUI, and Objective-C. I’ve led architectural decisions (MVVM), API design, and automated testing across cross-functional teams to deliver robust, scalable products. I enjoy turning complex requirements into elegant, maintainable code and collaborating with product and design teams to craft engaging user experiences, from chat features and AR experiences to audio processing frameworks. I’m passionate about technical excellence and continuously learning new technologies to drive product success.…Hi, I’m Huanjiao Qiu, also known as James. I’m a seasoned iOS developer with a track record of designing and shipping high-quality mobile applications using Swift, SwiftUI, and Objective-C. I’ve led architectural decisions (MVVM), API design, and automated testing across cross-functional teams to deliver robust, scalable products. I enjoy turning complex requirements into elegant, maintainable code and collaborating with product and design teams to craft engaging user experiences, from chat features and AR experiences to audio processing frameworks. I’m passionate about technical excellence and continuously learning new technologies to drive product success.

Available to hire

Hi, I’m Huanjiao Qiu, also known as James. I’m a seasoned iOS developer with a track record of designing and shipping high-quality mobile applications using Swift, SwiftUI, and Objective-C. I’ve led architectural decisions (MVVM), API design, and automated testing across cross-functional teams to deliver robust, scalable products.

I enjoy turning complex requirements into elegant, maintainable code and collaborating with product and design teams to craft engaging user experiences, from chat features and AR experiences to audio processing frameworks. I’m passionate about technical excellence and continuously learning new technologies to drive product success.

Skills

Swift

Objective-C

Unity

Experience Level

Swift

Expert

Objective-C

Expert

Unity

Expert

Language

English

Fluent

Work Experience

iOS Developer at Xverse

December 1, 2024 - November 1, 2025

Developed and maintained an iOS social networking app using SwiftUI with MVVM architecture; designed RESTful APIs and backend SQL schemas for user registration and chat history persistence; participated in requirements reviews, task allocation, and App Store release management; implemented XCTest automation for AI framework integration, registration flows, and real-time chat features.

iOS Developer at TikTok

October 1, 2022 - January 1, 2024

Led development and ongoing maintenance of iOS apps, focusing on enhancing audio processing and performance; contributed to modular design by creating an independent audio processing framework; established CI/CD pipelines for automated builds; authored XCTest unit tests to validate app functionalities.

iOS Developer at Huawei

November 1, 2020 - June 1, 2022

Developed iOS mobile applications with AR functionality, optimizing Unity integration and ARKit metadata handling; improved performance by refining the Unity framework; integrated MapKit for location-based traces in AR scenarios.

iOS Developer at CitiBank

April 1, 2020 - October 1, 2020

Contributed to a cross-platform Cordova project with native Swift/Objective-C components; implemented payment processing flows for UK and Indonesia regions; collaborated with international teams in English to align solutions with global standards; improved app performance.

iOS Developer at Powerbus

October 1, 2018 - November 1, 2019

Led development of an iOS app enabling Bluetooth-based power bank borrowing; integrated CoreBluetooth, MapKit for store locations, and Apple Pay for payments; implemented backend communication via Alamofire and Codable; delivered a fully functional app with Bluetooth integration and online payments.