Hello Ignacio! I have a few pointers for you

-Because the job will be in the future, you need to use the future tense

- capitalize "I"

-Capitalize proper nouns, like the names of languages (English)

Hi, in my future job as a medical technologist (Tecnologo medico) I will work with X rays in the imagenologic area, and I will need get better English skills to read a papers from my job and to comprehend a some of terms.

Thanks,

Ignacio Fernandez.

I hope I helped, and if you have any questions, just ask! :)