1 Year maximum for verifications
Yes, IBM require pre-employment background checks. Process takes 30 Days.
Yes they check on your discplinary and your behaviour , how well you work with others . Their HR will call from the previous job, and ask about my performance etc. It took less than 2 weeks for the proccess to be completed.
Not at junior level. But at high senority level like Band 8 and above, it does require background checks.
One week, Phone verification