Indeed is the #1 job site worldwide with over 100 million unique visitors per month. Their service is available in more than 50 countries and 26 languages, covering 94% of the global GDP.
You may search the Indeed job index using their API. This allows you to submit job searches and receive results via a structured format which can be incorporated into your website or application.
Try Indeed’s API absolutely free of charge for commercial and non-commercial purposes.