Hongjia(Jason) Che
Austin,TX
Summary
Android Developer with over 6 years of experience in designing and developing robust Android applications using Kotlin and modern architectural patterns. Expertise includes building innovative mobile features for connected smart lighting systems, such as device control, automation, and firmware OTA workflows. Skilled in integrating AWS Lambda-backed APIs for efficient device management and collaborating with global engineering teams to deliver scalable, high-quality mobile solutions. Proven ability to drive projects from concept to deployment while maintaining a strong focus on performance and user experience.
Overview
5
5
years of professional experience
Work History
Senior Android Engineer
WAC Lighting
Austin, TX
10.2023 - 03.2026
- Developed Android features for the MyWAC App supporting InvisiLED, Colorscaping, Ventrix, and WAC Home products.
- Implemented single-fixture and group lighting control enabling brightness, color temperature, scenes, and device configuration.
- Developed automation features allowing scheduled lighting behaviors and trigger-based device actions.
- Built UI components using XML layouts and MVP architecture.
- Implemented firmware version detection and OTA workflows supporting both single firmware updates and batch firmware upgrades.
- Developed Location Details and Settings modules enabling device management, presets, admin permissions, and ownership transfer.
- Consumed AWS Lambda-backed APIs supporting device provisioning, location management, and automation.
- Led migration of users and devices from Ventrix mobile app to MyWAC App.
- Refactored legacy code migrating Kotlin synthetics to View Binding.
- Coordinated weekly sync meetings between U.S. and China cross-functional app teams.
Android Developer
Urgent.ly
06.2021 - 10.2023
- Developed Android features for the Urgent.ly Provider app used by roadside assistance drivers.
- Redesigned job dispatch and location tracking modules using Kotlin and MVI architecture.
- Implemented Jetpack Compose UI components for driver workflow features.
- Integrated Google Maps and Fused Location APIs for real-time navigation.
- Collaborated with backend teams to integrate REST APIs supporting dispatch and driver updates.
Education
Master of Science - Computer Science
Oakland University
Rochester, MI04.2022
Bachelor of Science - Computer Science
Oakland University
Rochester, MI08.2020
Skills
- Languages: Kotlin, Java, Python
- Mobile Development: Android SDK, XML UI Development, Jetpack Compose, MVP / MVVM Architecture, Material Design
- IoT & Connected Devices: Smart lighting systems, device control interfaces, firmware OTA updates, device provisioning & management
- Cloud & APIs: AWS Lambda APIs, RESTful APIs, JSON services
- Tools: Android Studio, VS Code, Git, Bitbucket, Fork, JIRA, Postman, Firebase Crashlytics
- Libraries: Retrofit, Coroutines, RxJava, Dagger / Dependency Injection, Room Database
- App publishing, Code refactoring, Branching strategy, Multitasking, End user support, Adaptability and flexibility, Cross-functional teamwork
Languages
English
Full Professional
Chinese (Mandarin)
Native or Bilingual
Timeline
Senior Android Engineer
WAC Lighting
10.2023 - 03.2026
Android Developer
Urgent.ly
06.2021 - 10.2023
Master of Science - Computer Science
Oakland University
Bachelor of Science - Computer Science
Oakland University