The single site, , is designed and produced by digital agency Publicis Modem.
It will consolidate 40 sites and use algorithm technology similar to that on dating and retail sites to match candidates and "intelligently suggest cross brand opportunities to those less sure of what role they are best suited to."
Candidates will be able to make comparisons of roles and create shortlists and ultimately make decisions.
Alternatively, experienced candidates can efficiently find exact roles of interest.
The online recruiting experience will enable RBS to capture data from candidate enquiries and allow in-house recruiters to search through the database for candidates who match current vacancies, "reducing dependence on third party recruitment agencies".
Susan Bor, director of group resourcing, said: "The profiling on our new careers portal is best in class digital technology and supports candidates in finding the right role rather than leaving them to search alone, while ensuring all options are presented to them.
Matthew René, account director at Publicis Modem, said: "It was important to consolidate RBS recruitment sites but not the candidate experiences.
"We looked beyond the banking sector to the most successful matchmaking sites and took insights from how they help guide their customers through to conversion and applied them to this pioneering website."