Ahmed:
My apologies, I did not realize that I was looking at a new LinkedIn feature that has not been rolled out to everyone.
LinkedIn now has a series of assessment quizzes that you can use to earn a badge in that specific skill/technology. There are assessments for R and MATLAB.
Thank you for pointing out that I can add "Mathematica" and "Wolfram Language" to my list of LinkedIn skills. But, I'd also like a badge. :)
Also, I am interested to know whether or not others find networking on LinkedIn helpful within the scope of the Wolfram Technologies?
thanks