Johnny Liu

Dynamic and detail-oriented software development professional with over 5 years of experience in creating robust .NET native applications. Expertise includes algorithm development, highlighted by a project that achieved 95% accuracy in step counting from wearable device data, along with a strong foundation in WPF, UWP, and Windows API. Enhanced whiteboard software at ViewSonic, focusing on maintenance and feature development while mastering design patterns to improve code maintainability and expandability. Proven ability to lead projects such as 'Sens,' an application for face recognition and sensor data display. Currently driving refactoring initiatives for legacy diagnostics tools at Boldtek, ensuring efficiency and collaboration across teams.

• ScreenPad Plugin – Speech Typer, C#, C++, WPF, .NET, Windows, Windows API Integration, UWP Speech-to-text API, SendMessage, Window properties, UWP lifecycle, Overcome the limitation by OS, Use STT API to achieve speech typing to current focused window.
• Project Precog AI DualScreen App, C#, C++, WPF, .NET, Windows, Windows API Integration, SendMessage, Window properties, SetDisplayConfig, Controlling touch keyboard of system, Mode Recognition/Virtual Keyboard/Windows Moving, Handle the interaction of multiple processes to represent a brand new concept of user experience.
• MyViewBoard For Windows, C#, WPF, .NET, Windows, Windows API Integration, TTS, Design pattern, OOP, MVVM, Observer Pattern, DI container, Maintain, refactoring and develop new features of the whiteboard app.
• MyViewBoard Sens App, C#, C, C++, UWP, .NET, Windows, Design pattern, OOP, MVVM, Observer Pattern, DI container, Configuration Loader, UVC Protocol, MQTT, Getting the FW message via UVC protocol and present in UWP app. Upload session data to server via http service and pass data to phone app via MQTT protocol.