When starting at Red Hat as a solution architect, one of the things on is expected to do is become Red Hat Certified Engineer.
This certification happens in two steps. The first exam is the Red Hat Certified System Administrator (RHCSA) exam, and the second is the actual RHCE exam. You need to pass both successfully to become a RHCE. Although I was a RHCSA for a couple of weeks now already, I failed at my first attempt (as do 60% of all participants !) at the RHCE, and only last week did I get my RHCE.
This certification is made of a couple of hands-on tasks. Unlike the LPI, which is a multiple-choice questionnaire and where luck can play a role, you actually need to really know how things work with the RHCE,which makes it so interesting and challenging.
Now that I am a RHCE (which can be verified) I will continue with other courses, next one will be the Red Hat Enterprise Virtualization class to become RHCVA (Red Hat Certified Virtualization Administrator). You can see below the entire curriculum that leads to the ultimate title, the Red Hat Certified Architect (RHCA)
Update : I get my RHCVA last week. Again, it was a hands-on exam with standard tasks for administrators (i.e. setup a complete virtualization environment with management server, hypervisor, etc.). My next goal is the EX436, clustering and storage management !