![](https://40119736.fs1.hubspotusercontent-na1.net/hubfs/40119736/totalJob.png)
45
Total Job
![](https://res.cloudinary.com/ducs1mdnm/image/upload/v1697708718/expert-detail/totalTime_uzzag7.png)
8,945
Time Total
![Provide Image](https://40119736.fs1.hubspotusercontent-na1.net/hubfs/40119736/provide-1.png)
Started with Android native, Hau quickly went on to master iOS native and other cross-platform frameworks such as React Native, Flutter and Xamarin. He has led teams in the development of complex, business-grade mobile applications. Hau is here to help you build mobile apps that acquire users, grow revenue, or both.
Mobile Development
Certifications
![](https://res.cloudinary.com/ducs1mdnm/image/upload/expert-detail/associate-android-developer.png)
Associate Android Developer
This certification validates skills in building Android apps using best practices and design patterns.
Portfolio
![](https://40119736.fs1.hubspotusercontent-na1.net/hubfs/40119736/time-line.png)
2016 - Present
Freelancer
Upwork
- Contracted on dozens projects to help clients to build, publish and growth mobile apps to App Stores using cross-platform mobile technology such as Xamarin, React Native and Flutter. - As of 2023, grossing up to 9,000 Upwork hours, awarded with Upwork Top Rated Plus Program, trusted by clients world-wide on large contracts at the highest level of quality.
![](https://40119736.fs1.hubspotusercontent-na1.net/hubfs/40119736/time-line.png)
2013 - 2016
Senior Mobile Engineer
Beesightsoft
Led a team of mobile developers specialize in Android and iOS native development to develop complex, enterprise-grade business mobile applications.