Curriculum Vitae

Senior software engineer with more than a decade of experience building, modernizing, and leading mobile products at scale.

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Profile

Apple-platform engineering with product perspective.

I have worked across high-growth startups, independent products, and consumer platforms serving hundreds of millions of people. My focus is native iOS and macOS engineering, scalable architecture, engaging user experiences, and pragmatic technical leadership.

Alongside shipping products, I explore how AI can improve both customer experiences and the software-development process.

Experience

Career

Senior Software Engineer, iOS

Axel Springer National Media & Tech

December 2023 — PresentBerlin, Germany
  • Led development and modernization of a high-traffic consumer news app.
  • Delivered widgets, push-notification infrastructure, SwiftUI design systems, and AI-powered podcast experiences.
  • Drove SwiftUI migration and adopted Swift 6 concurrency across modular VIPER and TCA architectures.
  • Used monitoring, Firebase, and AI-assisted engineering workflows to improve delivery and reliability.

Software Engineer Mobile

PAYBACK

February 2023 — July 2023Munich, Germany
  • Migrated core app areas to SwiftUI and The Composable Architecture.
  • Integrated Airship push notifications, implemented MFA, and shipped brand and widget extensions.

iOS and macOS Developer

Independent Products & Open Source

May 2018 — February 2023Amsterdam, Netherlands
  • Created OnlySwitch, an open-source macOS menu bar utility with more than 5,500 GitHub stars.
  • Published QRCobot and built developer tools including JLConsoleLog and the flashcard app WallCard.
  • Owned product architecture, implementation, distribution, maintenance, and community collaboration.

iOS Application Architect

YiXia Technology · Yizhibo

September 2016 — May 2018Beijing, China
  • Reduced crash rate from 0.5% to 0.07% through architecture standards, CI/CD, and code review.
  • Designed a plugin-based live-streaming framework that doubled feature-delivery velocity.
  • Reduced build time by 15%, message loss by 30%, and malicious traffic by 80%.

iOS Developer

Weibo Corporation

October 2015 — August 2016Beijing, China
  • Built video experiences for a social platform serving more than 500 million users.
  • Improved frame rate by 2–3× and reduced playback defects by 60%.
  • Helped drive 5× more video views and 3× longer watch time through playback and feed optimization.

iOS Developer

Beijing Xiudou Network

July 2014 — September 2015Beijing, China
  • Built the foundation of a video-commerce app, including playback, accounts, settings, and purchasing flows.

Windows Client Developer

QFPay

May 2013 — October 2013Beijing, China
  • Developed Windows Phone, WPF, and Qt clients for a compact point-of-sale payment platform.

Capabilities

Technical Skills

Apple platforms

Swift
SwiftUI
UIKit
Objective-C
AVFoundation
Combine
Swift Concurrency

Architecture

TCA
VIPER
MVVM
Clean Architecture
Modularization
Kotlin Multiplatform

Engineering

SPM
CocoaPods
CI/CD
Unit Testing
Firebase
A/B Testing
Crashlytics

AI workflows

Codex
Cursor
Claude Code
LLM-assisted development
AI product features

Education

Tianjin University of Technology

Bachelor of Science in Information Security

2009 — 2013

Languages

International collaboration

Chinese · Native

English · Professional working proficiency

German · B1