Yellow = words/letters

Color = puncuation

Hello! My name is Maria Vargas. I'm a managerial assistance technician technician assistant  , a  production engineer student, and radio announcer. I have taken several courses such as speech and public speaking , Community Manager (advertising and network management ) and AutoCad; besides that I did an English course. Currently I have two passions: The first one is to write writing , somehow I find it quite simple.  (it is a bit of a run-on sentence) So I have experience with some websites where my role has been vigorously reviewing each word to make sure that the content is perfect ; My second passion are the (in less it was plural make sure you say businesses)  is an online business . ( I used that since you could either make it a full stop or use "that" or "which" relative pronouns if you want to look up that yourself) that/which is gives me a world of possibilities to teach my skills and help others.

(Depending on your writing style) I added a couple breaks otherwise you have only a few sentences. I am not much of a semi-colon type of a person so I'd just make it a period. 

Usually we don't say "is to something" so it will be in the present progressive (Estoy hablando) "is" plus a verb. Same with "reviewing" You wrote "My role has been" which is have (past or present) + be (been) + verb (progressive). The "be" (present or past) + verb = progressive form. Ex: I have been reviewing, I was writing, I am writing. I had been writing etc..

Overall very good! Just a few minor errors but easily understandable. Keep up the work! 

Hope that helps!  

This is really good, no problem understanding exactly what you were trying to say. I would suggest working on breaking your sentences up a little. Good job!

about me

Hello! My name is Maria Vargas. I'm a  managerial assistance technician, production engineer student and radio announcer. I have taken several courses such as speech and public speaking, Community Manager (advertising and network management ) and AutoCad; besides that I did an English course. Currently I have two passions: the first one is to write , somehow I find it quite simple. so I have experience with some websites where my role has been to vigorously review each word to make sure that the content is perfect.; My second passion are is the online business where there is a world of possibilities to teach my skills and help others.