Arun Joy
Network Security Engineer Zscaler @Purple Communications, Inc
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WORK HISTORY
Network Security Engineer Zscaler @Purple Communications, Inc
Executed Palo Alto Panorama and firewall upgrades (PA-7080, 5430, 5060 series) ensuring zero downtime and improved securityposture. Designed and implemented SSL VPN solutions (GlobalProtect, Cisco AnyConnect) with PKI integration, reducing unauthorizedaccess incidents by 35%. Built and optimized IPSec site-to-site VPNs across multi-vendor environments (Palo Alto, Cisco ASA) to secure hybrid cloud andon-prem networks. Administered Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) for remote users, ensuring 99.9% uptime andseamless zero-trust access. Deployed and tuned CrowdStrike Falcon EDR integrated with Splunk & Microsoft Sentinel, cutting incident response time by 40%. Automated Cisco ACI fabric network policies with Python, enabling rapid deployment of stretched tenant policies across multi-sitedata centers. Configured and automated Cisco Nexus series for data center fabric integration with ACI, reducing provisioning time by 40%through Ansible/Python. Supported Cisco ISR/ASR routers at core and edge, implementing OSPF/BGP/MPLS for resilient hybrid cloud connectivity. Architected and deployed SD-WAN solutions (Cisco Viptela, DMVPN), improving branch-to-cloud connectivity with 30% latencyreduction. Configured and secured Azure workloads (VMs, storage, networking, firewalls), aligning with CIS benchmarks and NIST 800-53standards. Strengthened hybrid network resiliency by integrating BGP, OSPF, and MPLS routing protocols with layered firewall protections. Conducted regular SOC/SIEM analysis using Splunk, proactively identifying advanced threats before business impact.
EDUCATION
Mercy University
Masters, Computer Science
SKILLS
ABOUT ARUN JOY
I am a Senior Network Security Engineer with 15+ years of experience designing, securing,…
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