Remember too, that UC’s only accept transfer in the junior year,
so you’d need to spend two-years elsewhere regardless of your target UC.
The other hurdle is that CS is an impacted major at all UC’s, meaning that while a UC to UC transfer will be
difficult, actually getting into your major will make it extra tough.
What is your target UC?
You may want to check out the overall transfer requirements, as well as the major-specific requirements.
Assuming that you’re in-state for CA and you really don’t want to go to UCRiverside,
perhaps consider a CC to UC transfer.
The system favors this pathway and a Transfer Admission Guarantee (TAG) is available at all but LA & Berkeley.