Rennan, my corrections and changes to your text are shown below:
My name is Rennan, I’m a student. I’m writing to apply for the position of Pilot as advertised.
The position seems very exciting for me. Working in the Airplane industry is a challenge. I have observed how the company has grown during the last few years and I think it is quite interesting what the organization and market strategy have done to attract the people.
During my internship, I learned that teamwork, collaboration, knowledge exchange with experienced professionals will help me to develop and become more responsible.
I’m not afraid of facing problems and looking for solutions. I believe that this experience will allow me to apply the knowledge that I’m learning throughout my course. I’m determined to be fluent in the English language because it’s very important for my career. Therefore, I believe that I’m a suitable person because I keep calm, work under pressure, and make fast decisions.
I have decided to look for a job where I can show my skills and grow as a good professional in this area. I am available if you wish to arrange an interview.