What is my job title?

[Omax]

I am working in a TV production company owned by my father.

Developing the 30 years old company, adding new services, designing a new website, designed a new identity (logo, business card...etc.) creating an online system to make things more efficient, to easily access this huge bunch of information.

I also send emails, promote on social media, build connections (online and offline), market, and look for new clients.

I did not print my business card because i do not know what my job title is.

I also do not know my job title when sending an email in the signature section.

I do not know how to introduce my self with one or two words. i have to mention all the above every time i introduce my self.

Any idea what my job title is?

Thank you. :-)