I find Information Visualization extremely interesting, and it was through a PhD-level course I took during my Master's studies that I came to realize how many terrible plots any scientific journal/article contains on a regular basis. I can clearly see that there is a potential for a vast number of Information Visualization jobs/tasks out there, but how about the actuality of it? Is there in reality any market/demand for that? Is it possible to easily get a job as an Information Visualizer?
I have been even considering doing thesis related to InfoVis, but I am not sure how appreciated that would be later on when finding a job? Won't my degree be overlooked when they see that my thesis was not done in a more strictly Bioinformatics-related topic but was instead done about InfoVis in Bioinformatics?
In my opinion, visualization is part of bioinformatics. Especially R can do magic on making the right plot or visualization for your experiments.
you may after that develop a carer as Bioinformatic software developer, As I think your study will focus heavily on programming tools and its methodology, and a lot of labs and private sector companies asks for such positions. that will include but not limited to software as you also will need to be able to develop web sites that do the same job