English Native Teacher for a Kid ( 11 years)

We are looking for a native English speaker from March to end of June. Days: Tuesday and Thursday starting Mid of March. From 14:00 pm to 17:00 pm.  Someone who plays with him while teaching English. The school is near the metro stop of Pio XII ( line 9) and our house near Plaza Castilla ( closer stops Plaza Castilla and Ventilla). 
We are looking for a responsible person who likes children, plays and teach them. Our son knows how to speak English and he is very smart and polite. 
Main tasks. Pick up at the school, come back home, have lunch together and teach English.  Experience teaching Cambridge exams KEY, PET will be desirable. 
If you are interested, please contact me though mobile or mail. Provide information about your age, where are you from, and your recent experience.  Urgent incorporation