As of now, there is only a limited range of 10 job ads in Hongkong. Maybe, you could try slightly farther afield. Banking and Java are the main categories within this area. Topics like C#, .Net, and Windows Forms are very commonly called out in job ads of this kind. Common market verticals currently are Insurance (30% of different hiring companies), Investment, and Banking (20%).
Practiced pros are much sought after by companies as of now. If you're looking for a startup job offer in this area, be prepared for some competition. There is just one startup hiring for Wpf as of now. 3 of 7 companies publishing jobs on Jobspotting, are recruitment agencies posting job ads for clients. If you wish, you can adapt your Jobspotting filters to exclude those. With a Jobspotting profile, you'll receive an email whenever a new Wpf job appears that matches your personal priorities.