You will have to work extensively with folks of cultural diversity, and do so not only as a person but as a humanitarian You will generally get paid about 30% less than your job would if you were working in the corporate world, as a nonprofit career truly is about giving back to the community, and that is one of the sacrifices you have to make.
That being said working to aid others is one of the most mentally and spiritually rewarding jobs you can have. The ability to go home from work and know that what you did that day didn't just pay your rent and get you cash, but it also helped improve the lives of many other people out there. If the lack of pay doesn't scare you off, then this career can lead to you becoming a pillar in a community that thrives and rewards generosity to others.
If you have volunteer experience, it is easy to become employed within a nonprofit organization. Working at a church, outreach network, counseling service or any number of public services for free can show your true character and be a strong basis for you to get hired above the other applicants for a job at a nonprofit organization.
If you are willing to volunteer before accepting employment, it is easy to work your way up from the lower level of these organizations as well, and feel fulfilled doing so. Having a college degree also helps, even if it is not completely related to the field, many communications degrees hold water when it comes to applying for a job in a field that requires a person to act as a humanitarian. A lot of these degrees can show that you are able to address a community's needs, and are dedicated to helping people, and working with them comes easy for you.
A lot of hard work and research is required to actually address a need within any community, so one must be prepared to put forward that effort to make a real difference in our world. The people willing to do so are the kind of people that nonprofit organizations are looking to hire. If you are up for the task than start applying or volunteering to get your name out there, and you'll be part of one of the most fulfilling careers available in no time.