Is the use of a conjunction between the second-last and last word in a list (A、B和C) a natural Chinese construction?
現在我身兼數職 will make people feel you are so proud, so people don't use it a lot.

現在我兼任..seems like you are  taking responsibility for your stressful work, it's more modest than above.

Forgive my grammar mistakes, I am a college student of China and learning English now.