Assumed that the final submission of your paper has been accepted and you are just waiting for it to hit the print. Did you include words in your application and/or cv stating that your paper is being printed with the expected publication date of xxx in which journal, volume and page numbers etc??? Consider including the abstract of the paper to be published in your job application as an attachment for reference??? (as a courtesy, perhaps let your supervisor and other authors if any on the paper know that you are going to do so?).
Have you tapped into and leveraged your PhD supervisor’s network or that of any other professors/researchers etc which you worked or collaborated with over the years? If you are interested in working in the industry (rather than academia), I’d target researchers who have an interest/stake/connection in pharmaceuticals or biotech industry. Given that they would know you, your work and have extensive contacts in your particular field, they can provide you with ‘warm’ leads and introductions who can potentially lead to contacts in Asia and/or HK even if these contacts are not immediately/currently in HK. Similar to jobs outside of science, many (excellent) research projects and jobs are not advertised and often filled through contacts. [As a side note, I seem to recall many of my old professors hold patents, run/affiliate/provide consulting work for pharmaceuticals/biotech/bank/venture capitalists. One in particular I can remember turn his discovery into commercial products and later took the company public. It was a life time ago since I was in biological science and research though!]
This is more of a longer shot if you have not started already. You may also consider applying for postdoc funding yourself with the support of one or many supervisors in your field and finding a laboratory (one of the universities?) here in HK to host you (you will need to come to an arrangement with the lab of course)? There are funding around the global – commonwealth research fund (UK, Australia, Canada etc), the US defence department (they do fund biological projects) and some available from the large pharmaceutical companies - check out the government agency of science/technology/research in different countries, check with your own contacts and on the scientific journals. One thing to be mindful of is that the research funding pool in many developed countries have been reduced post 2008. Maybe HK or China has a funding program too? Over the years, friends who stayed in life science research have had success in obtaining funding for themselves said from one country and conduct their research in a different one (even as their first postdoc). Of course, you will need to put up an excellent business case to demonstrate why the project needs to be done in HK and how it will benefit the country or program which provides the funding (more so than applying funding to be conducted in the same country - find an angle and sell it!). Like I said, it may be a longer shot although it’s never too early to start on grants writing, applying for funding and networking. Many successful scientists also share traits of an entrepreneur.
Over the years, I have changed career paths, moved countries and took long breaks from working (often due to the previous two). In dealing with people who care more than me about my status of ‘looking for the next challenge’, I look to myself. For me, it comes down to 'if' and 'how' I choose to let their expression of concerns and opinions impact me. I have also developed a strong filter to only focus on what makes positive impacts on my life and be mindful of the changes that I am going through. Most of the time I find myself too busy working towards my goal and socialising with people who are contributing positively towards my goal. It allows me little time and space to remember and consider what the rest of others say about my 'in-between' status and the choices I make.
Good luck!