Could someone be kind enough to tell me what they would call "one who is responsible for sales"? I am looking for a job title, and my mind no longer operates.

it would depend on each sector of business eg ; Sales Manager, sales executive, business development manager what is you do?

I think it's "sales representative".

Thank you both. I was looking for an equivalent of "satış sorumlusu".

Sales agent as well: "one who is authorized or appointed by a manufacturer to sell or distribute his products within a given territory but who is in business for himself, takes title to the goods, and does not act as agent for a principal".

Sales representative: "one that represents a business organization: SALESMAN"

Hope this helped.

longinotti and duda - thank you for your suggestions. Highly appreciated.