Network Security Engineer

Provided Level 2 Microsoft 365 and enterprise technical support in an ITIL- and SLA-driven environment. Resolved user, application, access, authentication, and service issues while maintaining a 95% customer satisfaction score.

Administered Active Directory accounts, password resets, group memberships, and approved access requests. Supported Microsoft 365 and Azure AD/Entra ID services, MFA-related issues, endpoint protection, and security incident investigations affecting accounts, endpoints, and enterprise connectivity.

Troubleshot TCP/IP, DNS, DHCP, VPN, Windows, and Microsoft 365 connectivity problems. Used ServiceNow to maintain accurate ticket records, follow incident and request processes, document outcomes, and escalate complex incidents appropriately.

Implemented multi-factor authentication and network access controls, contributing to a reported 90% reduction in account compromise.

Supported Azure AD and Microsoft 365 security integrations, firewall configuration activities, and network security monitoring. Helped reduce malware and network-based threats by 35% through security controls and operational improvements.

Improved security detection and response capabilities by 50% through enhanced network security monitoring and operational improvements.

Integrated Palo Alto firewall solutions and applied network segmentation to strengthen perimeter and internal security controls. Performed infrastructure patching, imaging, backups, and system updates to improve resilience and support security architecture improvements.

Designed, implemented, and supported LAN and wireless network environments. Configured routers, switches, VLANs, ACLs, and routing protocols to provide reliable network connectivity.

Implemented and troubleshot DHCP, DNS, NAT, OSPF, RIP, and EIGRP services. Improved network protection through firewall controls, DHCP Snooping, and Dynamic ARP Inspection.

National Diploma in Network Systems.