I think if you* seek professional excellence/aim a better professional life, you** need to have a series of characteristics that employers look for, a worker/employee/trainee with good communication, positive attitude and that have good ethics, is highly valued.
*you seek (also "if one seeks)
**you need (one needs, or if you don´t want one repeated you may use "he/she", as you wish.
* plus ** I think if someone seeks...they would then need... (would be more impersonal, perhaps politically correct as they say.)
I look for "student" and "features" as in your intended sense in my CALD (cambridge dict.) and the examples I found were not used in this way. I had a feeling that "features" is not usually used with the word "student".
Then I look it up in the COCAhttp://corpus.byu.edu/coca/
What I had was "student characteristics", which (I find) fits more to the context. "Student qualities'' would do as well.
"Profissional" - they usually don´t use the word as we do, generally it comes along with something more, "health professional". That is, refer to a member of a profession (nurse, teacher, what you have), and it requires some training.
Or in expressions like "professional standards" etc.
This perhaps it´s what you have thought:http://en.wikipedia.org/wiki/ProfessionalIn some cultures, the term is used as shorthand to describe a particular social stratum of well-educated workers who enjoy considerable work autonomy and who are commonly engaged in creative and intellectually challenging work.
In Brazil, indeed, a "profissional" is basically any person that have a job for some time, so he/she knows the ropes. Not in America, they don´t use the word this way.