Poorna Kumar
Network Security Engineer
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About
Skills
Routing & Switching: BGP, OSPF, RIP, VLAN, STP, DHCP, DNS | Network Security: Cisco ASA, Cisco ISE, Forescout NAC, Cisco FTD, FMC
Platforms & Tools: Microsoft Sentinel, EVE-NG, VMware, Wireshark | Infra: Active Directory, IPSec VPN, NAT, ACLs | Cloud: Azure (AZ-900)
Professional Experience
StarOne IT – Network & Security Support
Kochi | May 2025 – Present
Implemented Cisco ISE with AD integration, policy sets (802.1X, MAB), guest portal, posture checks, and profiling.
Deployed Cisco FTD managed via FMC including access policies, IPS, SSL decryption, and NAT.
Configured load balancers (F5/Citrix) for HA, SSL offloading, and traffic distribution.
Provided L2 support for VLANs, DHCP, DNS, IPsec, and firewall rule troubleshooting.
Coordinated upgrades, backups, and documentation for ISE, FTD, and FMC systems.
Wipro Ltd – L2 Network Security Engineer
Kochi | Mar 2023 – Apr 2025
Managed Cisco ISE (802.1X, TACACS+, WebAuth), posture remediation, and Forescout NAC.
Configured BGP, OSPF, RIP in enterprise environments; supported VLAN, STP, DHCP.
Automated DACL reports, MAC whitelisting, and posture alerts.
Integrated ISE logs with Microsoft Sentinel for endpoint compliance monitoring.
Face Prep – Inside Sales Associate (Cybersecurity Courses)
Remote | Jan 2023 – Mar 2023
Conducted technical pre-sales calls covering OSI model, TCP/IP, firewalls, and ethical hacking.
Helped learners map technical gaps and choose suitable cybersecurity/networking courses.
Actively supported prospects and enrolled learners with technical doubts, ensuring clarity on networking and security concepts.
Skill-Lync – Inside Sales Specialist (Networking & Cybersecurity Courses)
Remote | Oct 2022 – Jan 2023
Sold networking/cybersecurity training with a focus on educating prospects about OSI, basic switching/routing.
Delivered KT sessions to candidates; aligned technical needs with appropriate learning paths.
Frequently assisted a wide range of candidates by resolving their technical queries and guiding them on basic infrastructure and protocol concepts.
Certifications
Microsoft Azure Fundamentals (AZ-900)
Verified core knowledge in Azure, networking, and identity services.
Education
B.E. – Mechatronics Engineering
Erode | 2018 – 2022 | CGPA: 7.7
Experience
Skills
Routing & Switching: BGP, OSPF, RIP, VLAN, STP, DHCP, DNS | Network Security: Cisco ASA, Cisco ISE, Forescout NAC, Cisco FTD, FMC
Platforms & Tools: Microsoft Sentinel, EVE-NG, VMware, Wireshark | Infra: Active Directory, IPSec VPN, NAT, ACLs | Cloud: Azure (AZ-900)
Professional Experience
StarOne IT – Network & Security Support
Kochi | May 2025 – Present
Implemented Cisco ISE with AD integration, policy sets (802.1X, MAB), guest portal, posture checks, and profiling.
Deployed Cisco FTD managed via FMC including access policies, IPS, SSL decryption, and NAT.
Configured load balancers (F5/Citrix) for HA, SSL offloading, and traffic distribution.
Provided L2 support for VLANs, DHCP, DNS, IPsec, and firewall rule troubleshooting.
Coordinated upgrades, backups, and documentation for ISE, FTD, and FMC systems.
Wipro Ltd – L2 Network Security Engineer
Kochi | Mar 2023 – Apr 2025
Managed Cisco ISE (802.1X, TACACS+, WebAuth), posture remediation, and Forescout NAC.
Configured BGP, OSPF, RIP in enterprise environments; supported VLAN, STP, DHCP.
Automated DACL reports, MAC whitelisting, and posture alerts.
Integrated ISE logs with Microsoft Sentinel for endpoint compliance monitoring.
Face Prep – Inside Sales Associate (Cybersecurity Courses)
Remote | Jan 2023 – Mar 2023
Conducted technical pre-sales calls covering OSI model, TCP/IP, firewalls, and ethical hacking.
Helped learners map technical gaps and choose suitable cybersecurity/networking courses.
Actively supported prospects and enrolled learners with technical doubts, ensuring clarity on networking and security concepts.
Skill-Lync – Inside Sales Specialist (Networking & Cybersecurity Courses)
Remote | Oct 2022 – Jan 2023
Sold networking/cybersecurity training with a focus on educating prospects about OSI, basic switching/routing.
Delivered KT sessions to candidates; aligned technical needs with appropriate learning paths.
Frequently assisted a wide range of candidates by resolving their technical queries and guiding them on basic infrastructure and protocol concepts.
Certifications
Microsoft Azure Fundamentals (AZ-900)
Verified core knowledge in Azure, networking, and identity services.
Education
Education
B.E. – Mechatronics Engineering
Erode | 2018 – 2022 | CGPA: 7.7
