Interaction between two languages, the native and the foreign language, results in the phenomenon known as interlanguage, which is the influence that the foreign language receives from the mother tongue and backwards. This influence can be positive or negative (Interference). This interlanguage research in the teaching process orin learning English, where Spanish is the mother tongue; and the particular identification of linguistic interferences in the English language for specific purposes in the career of Industrial Engineering at the Ecuadorian University, this identification constitutes the investigation objective. For its development, a guide for the interferences identification, the videos transcription and the translation of specialized texts were used as fundamental means. A sample was used with 30 students, which is the total number of students enrolled in the last level of an Englishcareer. The fundamental result was the identification, classification and analysis of linguistic interferences, information that worked as bases in the design of the necessary strategies to reduce the mistakes of interlanguage in the process of teaching and learning English in this career.
