1. Participate in the security construction of the company's AWS cloud platform, develop and implement security practices. 2. Build a security operation system, establish security detection, monitoring, and blocking capabilities, optimize security rules and models. 3. Respond to and handle security incidents, analyze attack paths, track various security threats and events. 4. Responsible for the construction of the company's defense in depth security system, design and establish security frameworks, security components, and security solutions