Dr. Monzer Kahf, a prominent economist and counselor states:”I believe that working in a conventional bank is not Haram. What is Haram is to write, sign or be a witness of a Riba contract. Working in the IT department is not part of this. Going for Hajj is InShaAllah ok and will be acceptable by God. You should know though that from while it is permissible, your job is in periphery of the Haram as it involves supporting a Riba-based institution.