If you want to integrate the UN Job List into your website or service you can use the RSS feeds. However there are currently two more ways to integrate the UN Job List into your website via a custom UN Job List Widget or via the UN Vacancy XML.
If you would like to include the UN Job List into your website, you can either use the RSS feeds you will find for every page or use the UN Job List Widget.
If you want to use a more sophisticated data exchange format for UN vacancies have a look at the UN Vacancy XML. The format is also a great format if you want to share your data with the UN Job List.