Fernando Siles Quiñones

• Same activities as shown below in Network Security Engineer description for Network Data plus:
• Lead support for high-priority incidents using Xmatters and incident bridges
• Document network technology standards and guidelines
• Train new hires in Network Operations
• Support implementation of new Data Center/Offices network

Network Infrastructure & Operations:

• Configure, troubleshoot, and support Cisco routing (ASR 100X, 3900, 4400) and switching platforms (Nexus 2K–9K, 1000v; Catalyst 6500, 7600, 3750)
• Deploy and manage F5 load balancers
• Create and configure SolarWinds nodes; analyze link utilization; automate network tasks via scripting
• Administer DNS and DHCP services using Infoblox
• Troubleshoot Aruba SilverPeak appliances and monitor network behavior with NetBrain
• Raise TAC tickets and coordinate with vendors for issue resolution
• Collaborate across IT teams to resolve P1/P2 incidents and implement network changes
  
  Network Security & Firewall Management:
• Implement and maintain Palo Alto firewalls (PA-5220, PA-7050, PA-5060, PA-5260, PA-5250)
• Execute firewall tasks: rule creation, interface setup, decommissioning, traffic analysis, failover testing, *URL filtering, policy tracing, and categorization
• Analyze logs using Splunk to identify blocked URLs and security events
• Provide VPN support and troubleshooting for Cisco AnyConnect users
• Partner with IT teams during critical incident response and security escalations

Client: Morgan Stanley

• Monitored client networks using SpectrumProvided remote support for network maintenance
• Coordinated with international carriers for issue resolution
• Managed RMA processes and SLA compliance

Tier 2 Engineer

• Troubleshot LAN/WAN issues from last-mile to backboneConfigured equipment (Raisecom, Cisco) and managed tickets
• Collaborated with NOC teams across core data, RF, and transport
• Supported services for major clients (ATT, BT, Orange, etc.)