"HE IS THE RESPONSIBLE FOR SALES AND MARKETING"
This is SPANGLISH and I am sure most of you have said this at one stage because it is very common. The key mistake here is the use of the article "the".
In Spanish you say: "El responsable" so when Spanish people speak in English they like to say "THE RESPONSIBLE". The correct version of this is: "He is responsible for sales and marketing" or even better: "He is the manager of sales and marketing".
I hope that helps!
Soy el director de Daniel Smith + Partners. Tengo más de 15 años de experiencia enseñando inglés a españoles.