Working towards RHCSA, getting that first linux admin job

I've been working towards RHCSA for a couple months now and still have a ways to go, but besides the RHCSA, what else could I be doing to help give myself something extra to help me get that first linux admin job?

I currently rent a dv developer server from MediaTemple to practice remote server management, but anything else I could do at home that can be put on a resume to make up for the fact I have no professional experience?

Thanks.