A320
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Flight Crew Last 90 Days 229; Flight Crew Total 5863; Flight Crew Type 3867
Situational Awareness
ATC Issue All Types; Conflict Airborne Conflict
Flight Crew Took Evasive Action; Flight Crew FLC complied w / Automation / Advisory
Human Factors; Procedure
We departed from Tijuana Airport with a restriction in our climb of 5000; after the take-off we contacted SoCal departure on 119.6 and received vectors on course; the vector was on a heading of 300 and continue the climb to 15000. Passing 6000 feet we saw on our Navigation Display traffic 3000 feet above us at 5 miles approximately at 1 o'clock [from] our position.Since English is not our first language; we thought we misunderstood the climb clearance and again contacted SoCal to verify the clearance; and we had the same answer to climb to 15000.We tried to reduce vertical speed in order to avoid the TCAS warning; but the traffic was too close and we had the TRAFFIC TRAFFIC warning followed by the Resolution Advisory which commanded us to level off at approximately 8500.When clear of conflict we told the ATC and continued the climb to 15000 with no further information about the traffic.
A320 Captain reported receiving an RA on climbout from MMTJ.