CCIE stands for Cisco Certified Internetwork Expert. It is a certification that is given to Network Engineers who have achieved a high level of expertise in the Networking field. A CCIE is not just an expert in Networking, but also has in-depth knowledge of Network Infrastructures, Security, Routing and Switching, Voice and Video, Wireless, Data Centers and Cloud Computing. A CCIE candidate can work at various positions such as being a Network Engineer or Team Leader at Cisco or other top Networking companies. They can also work as consultants for large enterprises who are looking to improve their Networks.