The Pega Certified System Architect (CSA) certification is an industry-recognized certification that validates a person's Pega skills and knowledge in system architecture. This certification is awarded by Pegasystems, a leading software company that provides digital transformation solutions. The certification exam tests the candidate's expertise in building scalable and secure applications using Pega's platform. It is the baseline certification for a Pega developer and helps in validating the knowledge and skills required to deploy and maintain Pega applications.