Check this out ..

Presentation and interests

My name is Daniela, I'm 24 years old, <em>and</em> I come from a little countryside <em>in</em> Mexico City so my chilhood was really different than most children. When I was 15 years old my father decided that I needed a better education so he sent me to Guadalajara for High school. Then afterwards I went to a University. Actually, I finished my studies last year at the Universidad de Guadalajara where I decided to study Managment of International Business. While I was attending the University, I worked as a waitress in a local Restaurant for 2 and a half years. Then I moved to Reynosa for during an exchange program. I'd been I was there for eight months then I came back to Guadalajara for to graduated of Collegue and now I am ready for a new challenge.

At this moment I look forward to be hired in an international company which has the commitment to build a better World. So of course this company needs to be sustainable because I think this is quickly becoming a condition for doing business and on the other hands because people demand it. But the most important thing for me is that sustainability be part of the heart of the company. I mean that it has done not only because people demand it but also because to affect the world in positive way. This is its part of it's mission.

Introduction and Interests

My name is Daniela and I'm 24 years old. I come from a little countryside (a small town outside?) of Mexico City so my chilhood was very different than most children. When I was 15 years old my father decided that I needed a better education so he sent me to Guadalajara for high school. Then I went to university. Actually, I finished my studies last year at the Universidad de Guadalajara. I decided to study International Business Management. While I was at university I worked as a waitress at a local restaurant for 2 and a half years. Then I moved to Reynosa for an exchange program. I was there for eight months and then I came back to Guadalajara to graduate from college. Now I am ready for a new challenge.

At this moment I am looking forward to being hired by an international company that is committed to building a better world, so of course this company needs to be sustainable, because I think this is quickly becoming a condition for doing business, and on the other hand because people demand it. But the most important thing for me is that sustainability be part of the heart of the company; I mean that it is implemented not only because people demand it, but also because it affects the world in a positive way - it's part of its mission.

Great job! Be careful not to capitalize words that don't need capitalization (such as university, restaurant, and company). Also, English sentences are often short, direct and clear, compared to sentences in Spanish. That is why I broke some of your long sentences up into more than one sentence. 

Good luck with your career in international business!