From csoonline.com
What is a SOC analyst?
A SOC analyst is a cybersecurity professional who works as part of a team to monitor and fight threats to an organization’s IT infrastructure, and to assess security systems and measures for weaknesses and possible improvements. The SOC in the job title stands for security operations center; this is the name for the team, which consists of multiple analysts and other security pros, and often works together in a single physical location. A SOC may be an internal team serving a single enterprise or an outsourced service providing security for one or more external clients.