I found several plugins/themes for creating a job board with WordPress, but only one solution which is free (see here)
Are there any other free solutions for doing that?
Topic plugin-recommendation theme-recommendation themes Wordpress
Category Web
Another one job board software from Enginethemes: http://www.enginethemes.com/themes/jobengine/ It's really really beautiful and powerful job board. I think you need to check it, demo here: http://demo.enginethemes.com/jobengine/
As you can see, a lot of available solutions are premium plug-ins or themes. The pricing seems fairly reasonable ($25-$40 for a good solution), but if you're really strapped with your project budget the free plug-ins might serve as a good base for building your own replacement.
Once again, though, I have no criteria with which to judge any of these alternatives since you never explained exactly what you were looking for. All of these options will help you build a job site, but without a better understanding of what you're trying to accomplish, I have no idea which, if any, would be the best route for you.
Geeks Mental is a community that publishes articles and tutorials about Web, Android, Data Science, new techniques and Linux security.