• Provide technical support and handle escalations to Qualys customers for Vulnerability Management, Cloud Agent and other Qualys Cyber Security Cloud Based products and applications.• Verify and handle vulnerability False positives / negatives for Vulnerability Management and Cloud agent.• Troubleshoot False positive / negative, Authentication, Scanner and platform related issues. Reproduce the issues reported by the customer in our lab and work with the engineering teams to identify issues and bugs• Collect debug logs along with packet captures and analyze them for false positive, false negative and authentication related issues using Wireshark for cx products on Cisco IOS/XE, Palo Alto Networks, F5, Fortinet, A10 Networks etc.• Gather logs, configuration details and attempt to reproduce the product related issues in Lab.• Work with Virtualization Hardware, Software and Cloud Based Solutions such as Azure for Customer Environment Replication and Quality Assurance Testing of Qualys Applications. Engage with Technical Account Managers and Technical Product Managers to ensure proper knowledge and guidance is provided to customers requiring assistance.• Document cases, recommendations, and resolutions clearly in the Salesforce CRM system and Jira.• Automate routine tasks using Python

• Perform Solution and Integration Testing for TPS (Threat Protection Systems) products (AX Thunder ACOS / vThunder ) DDoS Detection and Mitigation with feature sets for L4-L7, L2/L3, HTTP/S, SSL, DNS, TCP/IP, UDP, DHCP, BGP / OSPF.• Troubleshoot complex cases and work with Customers, Developers, PM to investigate and replicate critical customer issues.• Automation of solution tests using Python• ATAF Library: Developed configuration templates that enable users to configure commands on A10 devices using API calls.· Triaging automation failures and debugging issues with code and environment.· Deploying hybrid test environments using VMware Hypervisors and Azure cloud infra.• Functional Testing: Worked on Test Plan creation and functional testing of DDOS Detection & Mitigation based features• Performance testing: Testbed setup and testing of VMWare virtual TPS for 100G performance and using Mellanox Connect X-6 NIC cards on ESXi Dell Server with vSphere 7.0• GUI Testing for aGalaxy application which receives the sFlow / NetFlow from the DDOS device for flow and anomaly statistics and alerts.• Cloud testing: vThunder on Azure cloud• Use IXIA IxExplorer / IxLoad, HPING, dig and tools like Wireshark and tcpdump for traffic analysis.• Jira for defect filing and Xray for test cases / test plan.

Client : Cisco Role : Network EngineerPlatform : SDA DNAC, Cat 9300, 3850, WLC 5508 9800, Cisco UCS C-series servers and VMware vSphere hosted on UCSSanity Scripting : PythonTools : Jenkins for CI/CD, Github for version control, IXIA for traffic,Responsible for : 1) Feature testing and setting up customer network replications in local lab to simulate real-time network environment and issues 2) Configure, deploy and maintain routing, switching & security on all platforms. 3) Feature testing for Cisco DNA Assurance and Cisco Network Data Platform (NDP) 4) Worked on Migration of routing instances and network traffic over to new edges devices such as Cisco CRS-1s 5) Cisco Networking, Project Management, and System Configuration

• Design, build, troubleshoot and deploy features for packet capture, monitor, storeand analyze packet data and filter and export data for security and performance acrossall cPacket platforms (cVu, cStor 10/40/100G, cClear).• Worked on L2 L3, AAA Tacacs & Radius, IPsec, VxLAN, VPN, TCP / UDP, DNS, SSL, VLAN, SNMP v2/v3, DHCP• Automate features for Regression using Python and REST API using POSTMAN• IXIA for Traffic generator, JMeter, IPerf and TCP Replay. Wireshark for packet analysis• JIRA / Confluence / Kanban for defect filing, tracking issues and scrum activities and XRAY for Requirement Traceability Matrix (RTM) to ensure the testing coverage. CI/CD pipeline with TeamCity.• Prometheus and Grafana used for Monitoring, JMeter for Performance testing• Perform recreates of customer scenarios and work closely with the developmentteam to resolve software and hardware bugs.• Performed post-mortem on high-visibility cases and identify learning points.• Mentoring new hires in the team on cPacket devices, features and protocols

1) Involved in feature and solution testing of security protocols like IPSec VPN, DNS, SSL, Firewall on Symantec WSS ( Web Security Service ), Proxy SG security gateway using Firewall’s like Cisco ASA 5505 Firewall, Meraki, Juniper vSRX, Palo Alto vPAN firewalls.2) Automation using Python using Pytest framework in configuring, verification and using perforce version control3) VMware Virtualization using vCenter server / vSphere / ESXi4) Also used MongoDB, MySQL, JMeter for load testing, Cassandra, Tomcat, Swagger documentation etc in set-up topologies5) Also involved in test plan design and network configuration, deployment and troubleshooting6) JIRA for bug tracking, qTest for test management and wiki Confluence

- Responsible for feature and solutions testing for Data Center Technologies, Protocols, and Solutions based on Brocade NOS VDX 8770, SLX, MLX, DCX chassis products
.- Automation using Python scripting with PyBas Python Robot framework , TCL and shell scripting
.- Developing feature, functional, deployment guides, troubleshooting guides etc.
- Working directly with customers on designing and deploying network, PoC’s. troubleshooting issues on production networks- Worked on Data Center Networks, building network topologies, setting up test beds, reference and demo labs with all services.- Project and release management for QA release cycles.

Worked in the following areas:

1) Data Center Networking – on Layer 2 and Layer 3 protocols on IP Fabric, VCS Fabric for both IPv4 and IPv6
2) Layer 2, Layer 3, routing protocol testing for – Ethernet, STP, RSTP, ARP, VLAN, DHCP Relay, OSPF, BGP, VRRP, VRF, PIM, ACL access-list, route-map etc using traffic tools Spirent / IXIA3) Overlay Technologies - EVPN, VXLAN, GRE Tunnel etc4) VMware Virtualization using vCenter server / vSphere / ESXi5) Automation using Python and TCL scripting 6) Writing Test Plan for the features and filing defects using TeamTrack7) Experience with packet pipeline understanding of merchant silicon ASICs such as Cavium(XP80) and Jericho

Worked as Contractor as Network Test Engineer at Google, Mountain View, CA

Worked onsite for client Fujitsu Telecom Europe Ltd in Birmingham, UK on L2 Switching & SONET SDH testing

Project: Alcatel Litespan 2000 / 2012 and NMS• Test Execution: New Feature and Regression Test Execution (Manual and Automated) on : Wideband Services(T1,HDSL),System, Broadband Services-SHDSL,ADSL, Multi-ADSL(Operations modes-DMT,ANSI,GLITE,ADSL2,ADSL2Plus), Optical(SONET), Narrowband(DS0), and DS3• Installation, Administration, Functionality, Maintenance (alarms, rate), Protection Switching and stress-level Testing.Worked onsite for client Alcatel in Petaluma, US