Ayman Dsouza

Lead Network & Security Analyst with 15+ years of experience in enterprise network operations, infrastructure engineering, and security across Data Center, LAN, WAN, WLAN, SD-WAN, and cloud environments. Proven expertise supporting Cisco Catalyst 9300/9500, Nexus 9000, Cisco ISR/ASR platforms, Aruba wireless, Palo Alto, Check Point, Fortinet, and Zscaler security solutions. Skilled in BGP, OSPF, EIGRP, VLANs, HSRP, VRRP, NAC, enterprise firewalls, troubleshooting, monitoring, and operational support.

INFRASTRUCTURE SERVICES ENGINEER at SCHNEIDER ELECTRIC (2009-11 – Present)

• Supporting enterprise LAN, WAN, SD-WAN, WLAN, and Data Center infrastructure across global corporate and manufacturing environments.
• Diagnosing and resolving complex network incidents across Cisco Catalyst 9300/9500, Cisco Nexus 9K, enterprise wireless, routing, and firewall platforms.
• Configuring and supporting Layer 2 and Layer 3 technologies including VLANs, STP, EtherChannel, inter-VLAN routing, HSRP, VRRP, and ECMP for highly available network architectures.
• Managing enterprise routing environments utilizing OSPF, EIGRP, and BGP to ensure resilient global connectivity and optimized traffic flow.
• Administering Aruba and Cisco wireless environments including SSID provisioning, AP deployments, RF optimization, wireless troubleshooting, and Ekahau-based wireless site surveys.
• Managing Cisco ISE/NAC solutions including TACACS+, RADIUS, 802.1X, and EAP-TLS authentication for secure wired and wireless network access control.
• Designing, implementing, and supporting Azure networking services including ExpressRoute, site-to-site VPNs, route tables, NSGs, and hybrid cloud connectivity.
• Managing enterprise security platforms including Check Point, Palo Alto, Cisco ASA, FortiGate, and Juniper firewalls.
• Administering Zscaler ZIA services including GRE/IPSec tunnel configurations, URL filtering, internet security policies, and secure remote access.
• Utilizing SolarWinds, LogicMonitor, Cisco DNA Center, and Wireshark for proactive monitoring, performance analysis, alert management, and troubleshooting.
• Performing firmware upgrades, failover testing, migrations, and network changes while minimizing operational impact and downtime.
• Resolving incidents and service requests in line with SLA requirements while maintaining accurate technical documentation and stakeholder communication.
• Participating in Internal CAB and Global CAB meetings by preparing risk assessments, presenting implementation plans, and executing approved network changes.
• Coordinating with vendors including Cisco, Palo Alto, Check Point, Aruba, and Zscaler for escalations, RCA, and advanced troubleshooting.
• Creating and maintaining L2/L3 network diagrams, rack elevation diagrams, wireless heatmaps, SOPs, and operational documentation.
• Supporting MDF/IDF deployments, structured cabling, optics/transceivers, and enterprise Data Center expansion projects.

IT INFRASTRUCTURE SUPPORT ENGINEER at NORCONSULT TELEMATICS (2007-02 – 2009-10)

Client: SAUDI TELECOM COMPANY (STC)

• Provided IT infrastructure and systems support for Saudi Telecom Company (STC) across enterprise environments.
• Supported Windows systems, desktop applications, user accounts, and basic network connectivity.
• Performed system configuration, troubleshooting, software installation, and maintenance activities.
• Coordinated with vendors and internal teams for incident resolution and infrastructure operations.
• Maintained deployment documentation, site records, and operational reports.

IT SYSTEMS SUPPORT ENGINEER at ANMOL COMPUTECH PVT LTD (2005-07 – 2006-05)

• Started career as a Field Service Engineer providing onsite technical support for HP desktop systems, HP printers, and HP ProLiant servers across client locations.
• Performed HP ProLiant server installation, hardware troubleshooting, preventive maintenance, and component replacement activities to ensure system reliability.
• Later deployed as a Resident Engineer at Hutchison Max Telecom, Lower Parel, providing day-to-day IT infrastructure and user support services.
• Subsequently moved to Hindustan Lever Limited as a Resident Engineer, supporting desktop systems, network connectivity, software installation, and end-user troubleshooting activities.
• Maintained high customer satisfaction by delivering timely technical support, resolving hardware and software incidents, and ensuring minimal downtime for business users.

FIELD SUPPORT ENGINEER at AURIGA COMPUTER SOLUTIONS & SERVICES PVT LTD (2004-05 – 2005-06)

• Provided onsite technical support for desktop systems, printers, and client infrastructure across multiple customer locations.
• Performed hardware troubleshooting, component replacement, and preventive maintenance activities to ensure system reliability.
• Assisted users with operating system support, software installation, and basic network connectivity troubleshooting.
• Supported day-to-day IT operations by responding to service requests, troubleshooting system issues, and ensuring minimal downtime for end users.

Master of Computer Applications in Computer Applications – Jaipur National University

Bachelor of Science in Information Technology – Sikkim Manipal University