Here is small script which can be used to create small and simple job site for any niche and it is 100 per cent open source .

Home- jobberBase - The Open Source Job Board Software

Demo-http://www.salongigs.com/

Admin demo-http://www.jobberbase.com/demo/admin/

Download-http://www.jobberbase.com/download/

Here are some of the new features:

* Ability to change all settings from Admin Panel instead of config.php
* Improved and Paginated Search
* Editable Job-Url Structure
* Editable locations
* Recaptcha Support
* Database Prefix Support
* Dynamic Menus in Header and Footer
* Multiple Theme Support
* City Cloud Page
* SMTP Mail Support