Network Administrator

Responsibilities

• Configure firewall devices according to organizational security policies.

• Establish baseline configurations for firewall rules, ensuring default-deny policies where appropriate.

• Utilize zone-based firewalling to segment and isolate different parts of the network.

• Configure VPN tunnels for secure remote access and site-to-site connectivity.

• Monitor firewall logs in real-time to detect and respond to potential security incidents.

• Track firewall devices' performance to ensure they operate efficiently and effectively.

• Analyze metrics such as CPU usage, memory consumption, and throughput to prevent performance bottlenecks.

• Set up automated alerts for suspicious activities and potential security breaches.

• Establish and follow incident response protocols for firewall-related security incidents.

• Conduct regular firewall audits to ensure compliance with security standards and best practices.

• Configure and maintain routers and switches to ensure optimal network performance, reliability, and scalability.

• Monitor network traffic patterns and bandwidth usage to identify and resolve potential bottlenecks or issues.

• Implement and enforce comprehensive security endpoint policies to protect devices such as laptops, desktops, and mobile devices from security threats.

• Implement and manage MDM solutions to secure and control mobile devices used within the organization.

Skills & Qualifications 

• Deep understanding of firewall configuration and management, including firewall rules, access control lists (ACLs), and VPN tunnels.

• Proficiency in configuring and maintaining routers and switches, managing routing protocols (e.g., OSPF, BGP), VLANs, and network segmentation.

• Ability to monitor and analyze network traffic patterns, bandwidth usage, and firewall logs to identify and resolve potential issues.

• Strong knowledge of endpoint security solutions, including antivirus software, host intrusion prevention systems (HIPS), and encryption tools.

• Experience with vulnerability assessments, penetration testing, and remediation strategies.

• Familiarity with regulatory requirements and industry standards (e.g., PCI DSS, HIPAA, GDPR, ISO 27001) and ability to ensure network compliance.

• Expertise in managing DHCP and DNS servers, including configuring DHCP scopes, options, and reservations, and maintaining DNS records and zones.

• Proficiency in access control management, including setting up ACLs, VPN configurations, and implementing role-based access control (RBAC) policies.

• Ability to monitor access logs and audit trails to detect and investigate unauthorized access attempts.

• Comprehensive understanding of endpoint security policies and ability to implement and enforce them across various devices.

Education & Experience

• Bachelor’s degree in Computer Science, Information Technology, or a related field.

• Minimum of 3-5 years of experience in network administration.

• Experience with firewall configuration and management, including implementing firewall rules and access control lists (ACLs).

• Proven experience in managing and maintaining routers and switches, and configuring routing protocols and VLANs.

• Hands-on experience with endpoint security solutions, such as antivirus software, host intrusion prevention systems (HIPS), and encryption tools.

• Background in managing DHCP and DNS servers, including configuring DHCP scopes and maintaining DNS records.
  

• Relevant certifications such as Cisco Certified Network Associate (CCNA), CompTIA Network+, or Certified Information Systems Security Professional (CISSP) are highly preferred.

• Knowledge of industry standards and best practices, such as ISO 27001, NIST, and CIS benchmarks.