The option to teach English is available to native English speakers. There are a lot of teaching English jobs on all of the sites below. See if there are any English job opportunities in the DRC by visiting each of these sites. The International TEFL academy also has this cool table showing how much money teachers can expect to make in various countries.
ESL Employment:
This isn’t the prettiest website, but you’ve got so many English teaching jobs to choose from, so who cares about looks?
Total ESL:
There is a wealth of teaching jobs abroad posted on this website, although the interface is overly busy.
ESL Cafe:
The job openings that Dave compiles from around the world are of the highest quality.
Tesall:
Teacher job aggregator with a lot of positions.
Overseas Jobs:
On this site and other sites, I find that the postings often overlap significantly. Although this site is a few years old, it has been around for quite some time.
Go Abroad:
There has always been something appealing about GoAbroad to me. You can find a link to their global embassies directory on the visa information section of my website. Their job portal is also good.
Linkedin:
Furthermore, this large professional social network provides a resource for making contacts in the area of your interest.