Yes, they can. Journeys and Tips are able to recognize URL, elements shown on the web page from the application and browser languages. Based on this concept, Newired is able to define the “how” and “where” a Journey (or a specific step) is visible or hidden. This way, specific Journeys can, for instance, be seen only by Sales persons, Customer Services, etc.
We don't have a direct job-based way to segregate the Journeys, as we work based on the behavior of the base application. However, by using one of the above rules, we can determine a way to achieve this.