JZ Jeffrey Zeng · Senior iOS Engineer

Portfolio Resume · iOS Engineering

Jeffrey Zeng 曾大千

Senior iOS Engineer · 12 years of mobile development

Swift SwiftUI Swift Concurrency Combine MVVM-C MVI TCA CI/CD

Senior iOS engineer with 12 years of experience across automotive, enterprise collaboration, healthcare, finance, and media products. Strong in Swift, SwiftUI, Swift Concurrency, Combine, MVVM-C, MVI, TCA, RxSwift, Objective-C, Flutter, and React Native. Experienced in architecture migration, async refactoring, CI/CD, componentization, project delivery, and cross-team collaboration.

Core Strengths

01

Modern iOS Architecture

Delivered maintainable state management and module boundaries across SwiftUI, MVI, MVVM-C, TCA, and mixed UIKit environments.

02

Automotive Core Feature Delivery

Worked across PorscheCN, Volvo Cars, and Polestar, covering car control, online services, legal flows, and user journey modules.

03

Async Refactoring & Engineering Efficiency

Refactored callback and Combine flows with Swift Concurrency, and improved delivery through scripts, Jenkins, and build workflow optimization.

Technical Skills

Languages

  • Swift / Objective-C
  • Flutter / React Native
  • Shell / Swift scripts

Apple Platforms

  • SwiftUI / UIKit
  • Swift Concurrency
  • Combine / RxSwift

Architecture

  • MVVM-C / MVI
  • TCA
  • Componentization

Delivery

  • CI/CD / Jenkins
  • UAT / PROD deployment
  • Cross-repo merge

Selected Projects

PorscheCN

Shanghai Wicresoft
2023.8 - Present
  • Owned TrackYourDreamCN, CeremonyCN, LiveChatCN, LegalCN, MyPorscheCN, DatePickerCN, and related modules.
  • Built for the iOS 15 SwiftUI version with MVI state management and MVVM-C architecture integration.
  • Refactored legacy callback and Combine async request flows using Swift Concurrency.
SwiftUI MVI MVVM-C Swift Concurrency

Volvo Cars

Capgemini China
2019.10 - 2023.3
  • Owned core car-control features including Lock/Unlock, Climate, Charge, and Car Location.
  • Rewrote UIKit screens with SwiftUI and delivered mixed SwiftUI/UIKit interfaces.
  • Refactored network requests and lower-reactivity Combine async code, while supporting APAC/global codebase merges.
Car Control SwiftUI UIKit Codebase merge

Polestar

Capgemini China
2019.10 - 2023.3
  • Delivered Car Control, Extended Warranty, Travel Service, Coupon, Referral, and related features.
  • Optimized build and packaging workflows, and wrote Swift scripts for UAT and PROD deployments.
  • Proposed and helped drive architecture improvements such as MVVM-C.
Build optimization Swift scripts MVVM-C

SAIC Volkswagen Super App

Capgemini China
2019.10 - 2023.3
  • Worked on componentized architecture adjustments for the Super App.
  • Iterated Enroll, Color, Grey, Brm, and related service features.
  • Set up Jenkins continuous integration to support the team delivery process.
Componentization Services Jenkins

Experience

2023.8 - Present

Shanghai Wicresoft

Senior iOS Engineer

PorscheCN project, covering SwiftUI/MVI module development, MVVM-C architecture integration, and Swift Concurrency async refactoring.

2019.10 - 2023.3

Capgemini China

Senior iOS Engineer

Served Volvo Cars, Polestar, and SAIC Volkswagen Super App, covering car-control features, architecture improvements, scripting deployments, and CI.

2017.8 - 2019.9

Glodon Technology

Senior iOS Engineer
  • Designed and developed the architecture and modules for Xiezhu App 2.0.
  • Migrated from Objective-C/Swift mixed code to about 90% Swift coverage and introduced CocoaPods.
  • Built document scanning, batch downloads, and offline model browsing capabilities.
2016.3 - 2017.7

Shanghai Yimu Network Technology

iOS Development Leader

Built YunZhenBao app architecture and main modules, upgraded from Swift 2.0/2.3 to 3.0, and integrated online consultation, appointments, electronic medical records, IM, and push.

2015.9 - 2016.2

Shanghai Duoben Financial Information Services

iOS Development Leader

Built TianTianYouQian app architecture and core modules, covering feed, product detail, ordering, Alipay/WeChat Pay integration, and led two iOS teammates.

2012.7 - 2015.8

Youku Tudou Group

Senior iOS Engineer

Worked on user center, movie categories, comments, and independently developed and maintained the backend SDK for the user platform.

Education

Nanjing University of Posts and Telecommunications

Bachelor · Electronic Information Engineering

2008 - 2012