Network Operations
LAN/WAN, routing, switching, VLANs, SD-WAN and secure connectivity.

I design, secure and operate resilient network and security infrastructure for financial institutions. Experienced in FortiGate, Cisco, Cloudflare, virtualization, monitoring and business continuity.
ABOUT ME
I am a Network Infrastructure & Security Supervisor with 7+ years of experience in banking and enterprise environments. I specialize in network administration, security, cloud edge services, virtualization, monitoring and disaster recovery.
My focus is to build secure, highly available and scalable infrastructure that supports business continuity and operational excellence.
WHAT I DO
LAN/WAN, routing, switching, VLANs, SD-WAN and secure connectivity.
FortiGate firewalls, policies, VPNs, NAT/PAT and access controls.
Cloudflare proxy, DNS, origin rules and secure service publication.
Active Directory, servers, VMware, Veeam and infrastructure management.
Zabbix, NGSIEM, CrowdStrike EDR/XDR and alerting.
SELECTED WORK
Planned and executed controlled FortiGate firmware upgrades with service-continuity considerations.
Migrated domain services from Windows Server 2012 to Windows Server 2025.
Implemented installation, discovery, agents, maps, dashboards and alerts.
Deployed FortiGate SD-WAN to improve connectivity resilience.
Managed Cloudflare proxy, origin rules, DNS and perimeter NAT/PAT.
Supported DR and SQL Always On operations with recovery planning.
CREDENTIALS
GET IN TOUCH
+977-9843439014
[email protected]
linkedin.com/in/nishant-kayastha
Kathmandu, Nepal
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