After 25 years in the industry, I now teach students about areas in IT, including Python, Databases, Robotics and networking. Prior to this, I have worked mainly in Unix/Linux system admin. Started as a C programmer in the late 90's (and still do quite a bit of C programming). I have worked for Vodafone, HP and IBM as a system engineer. Also have knowledge of Storage kit (EMC, HDS and IBM) and Fiber Channel switches (Cisco, Brocade and McData).