Job Description: We are looking for an experienced intranet security engineer to be responsible for the security planning, architecture design, and detection and response of security incidents for the company's cloud services and internal office networks. You will take on the core responsibility of ensuring the security of our company's internal network, ensuring the safety and reliability of our systems and data. Main responsibilities: Responsible for the security planning and architecture design of the company's cloud services (such as AWS, Azure, etc.) and internal office networks. Develop and implement security policies, regulations, and standards to ensure compliance with industry best practices and compliance requirements. Design and deploy security protection mechanisms (such as firewalls, IDS/IPS, VPNs, zero trust architectures, etc.). Monitor and analyze network security incidents, promptly detect and respond to them, and develop emergency plans. Conduct regular security assessments and penetration testing to identify and fix potential security vulnerabilities. Track the latest security technologies and threat intelligence, and provide improvement suggestions. Coordinate cooperation with third-party security providers and manage external security services and tools.