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Headshot of Geng Wang ZhangGeng Wang Zhang

Full-time · Android and iOS

Mobile Office

Mobile collaboration across messaging, calls, documents, and approvals.

Over 100 thousand daily active users

Role: Mobile development lead

  • Android
  • iOS
  • Real-time communication
  • Online documents
  • Office automation
Three Mobile Office phone screens showing an AI chat, team inbox, and office approvals

Overview

Mobile Office is an internal collaboration suite for a Chinese enterprise. It brings team messaging, voice and video communication, real-time document editing, approval workflows, and AI assistants into one Android and iOS app.

What I built

  • Designed the mobile app architecture and led feature implementation on Android and iOS.
  • Built messaging, voice and video communication, collaborative documents, and office approval flows.
  • Integrated AI assistants and handled performance optimization and release management.

Messaging and calls

Conversations support text, emoji, images, voice messages, and video chat in one place.

Documents and approvals

Teams can edit documents together and move internal requests through office automation workflows.

AI in daily work

Integrated agents help staff with routine tasks from inside the mobile app.

Inside the app

Select a screenshot to view it larger.

See it in motion

A short walkthrough of the mobile collaboration app.

Watch on YouTube (opens in a new tab)

Outcome

I led the mobile work from architecture and feature development through performance tuning and release. The app supported over 100 thousand daily active users across Android and iOS.

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