If you are from IIT, NIT, IIIT, BIT or NSIT you can directly mail your resume to : Click to see email-id or contact me via linkedin for all others please apply here only. don't seek multiple referral if you have taken one within 6 months (use your same profile).
For Fresher [Must be from a Premier Institution, No Private ]
check info at : https://jobs.qualcomm.com/public/jobDetails.xhtml?requisitionId=1959732
apply here if it is suitable.
For Experienced [Check Job ID info in Jobs.qualcomm.com]
You can find any job [ from the website ] relevant to your profile int the website and Apply here mentioning JOB ID in your application.