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Cybersecurity & Network Security Specialist

Payehrizan Fanavari Hooshmand — 2024 — 2026

Advise government, finance, and petrochemical organizations on next-generation network security and monitoring, owning the full stack from SIEM analytics to identity, endpoint, and IT service management.

SIEM & Security Analytics

  • Deployed and maintained Splunk enterprise security monitoring to optimize telemetry pipelines, analyze security logs, and streamline threat detection.
  • Implemented and configured Cisco SNA (Secure Network Analytics) for network-wide visibility, anomaly detection, and advanced threat hunting.

Network Routing, Proxy & Tunneling Infrastructure

  • Configured and managed MikroTik routers, optimizing dynamic/static routing protocols, VLAN segmentation, and network traffic management.
  • Designed and maintained secure tunneling protocols (GRE, IPsec, OpenVPN, EoIP) for safe site-to-site connectivity and inter-branch communication.
  • Implemented and administered enterprise proxy infrastructure to control web access, enforce content filtering, and optimize bandwidth usage.

Email & Network Security

  • Administered and hardened Cisco ESA (Email Security Appliance) to mitigate spam, phishing, and malware threats, ensuring high-availability email delivery.
  • Managed enterprise licensing and compliance using Cisco SSM (Smart Software Manager).

Identity, Access & Endpoint Management

  • Managed and hardened Active Directory Domain Services (AD DS) and core network services, ensuring strict security policies and compliance.
  • Administered ManageEngine PAM360 for Privileged Access Management, enforcing Zero-Trust access control and auditing critical infrastructure usage.
  • Deployed and managed ManageEngine Endpoint Central and Patch Manager to automate patch deployment, vulnerability management, and endpoint compliance.

System Administration & Infrastructure

  • Administered cross-platform Linux (Debian/CentOS/Oracle Linux) and Windows Server environments, focusing on OS hardening and performance optimization.
  • Managed enterprise email infrastructure using Microsoft Exchange Server.
  • Executed network cabling, server rack assembly, and passive infrastructure installations according to standard cabling topologies.

Monitoring & IT Service Management

  • Configured ManageEngine OpManager for proactive network topology discovery, bandwidth monitoring, and system uptime alerting.
  • Administered ManageEngine ServiceDesk Plus to streamline ITSM workflows, incident management, and ticketing SLAs.
  • Splunk
  • Cisco SNA
  • MikroTik
  • IPsec / OpenVPN
  • Cisco ESA
  • PAM360
  • Active Directory
  • Windows Server
  • Linux
  • Exchange Server
  • OpManager
  • ServiceDesk Plus