•Proficiently manage FortiGate firewalls, Huawei, and Cisco network switches to ensurea secure and reliable network infrastructure.•Conduct regular security assessments, vulnerability scans, and penetration tests toidentify and mitigate potential risks•Maintain up-to-date documentation of network configurations, diagrams, and securitypolicies•Monitor network traffic patterns to identify bottlenecks, analyze data flow, andoptimize network performance for seamless operations.•Monitor Linux server performance, track resource utilization, and promptly addressany issues to ensure optimal server functionality.•Generate regular reports on network and server performance, security assessments,and improvement recommendations.•Implement and maintain firewall rules, access controls, and VPN configurations tosafeguard data and prevent unauthorized access.•Provided technical guidance and training to junior team members, fostering a cultureof security awareness and knowledge sharing.

•Monitor, maintain, and continuously improve the company’s IS and data privacy through the improvement of internal detection and defense mechanisms.•Understanding Symantec endpoint protection technologies (Auto protection, Sonar,Intrusion prevention, Network threat protection, Memory exploit mitigation.•Installing and managing Security Tools like Symantec Endpoint Protection•Configure and operate security solutions (e.g., anti-virus, privileged account management, host-based firewalls).•Confer with network users about how to solve existing system problems.•Responsible for day-to-day operations of security solutions meeting the securityoperations service level agreement.•Perform routine server maintenance tasks, updates, and patches to enhance server security and reliability.