Pega Certified Lead System Architect (CLSA) is Pega’s top-level technical certification for experienced system architecture experts with hands-on implementation experience. It validates a candidate’s ability to lead the end-to-end process of solution delivery on the Pega platform, from architectural design to implementation. The certification consists of two key components: the System Architecture exam and the Application Design and Build phase. AAAdemy provides process-aligned knowledge explanations, study plans, learning strategies, exam tips, and online practice questions to help you prepare systematically and strengthen practical skills.