Oct 2020 – Feb 2022 · 1 yr 4 mos · Gurugram, Haryana, India · On-site

• Joined High Frequency Trading firm as a Network Engineer in Production Support Team. This is a financial
• based organization which deals in Share market (Trading firm). Due to their time critical and
• security concerned environment, my work is to ensure 100% uptime with lowest possible latency
• in the network. It requires continuous improvement and changes in the network.
• My other responsibilities in APT includes following:
•  Plan and design changes in the network to optimize the performance.
•  Configure and Manage VPN.
•  Troubleshoot issues with vendors and ISP.
•  Deployed QOS in the Network to prioritize critical trading traffic.
•  Deploy and manage multicast feeds.
•  Manage firewalls for site-to-site VPNs and ensure connectivity.
•  Optimize network to ensure 100% network uptime with adequate failover paths available.
•  Managing and upgrading the devices to latest firmware.
•  Ensure required monitoring and logging of the network events.

Mar 2019 – Aug 2020 · 1 yr 5 mos · Bengaluru, Karnataka, India

• Joined Cisco in TAC Team and later got promoted to HTTS Team. I have
• been steadily learning new technologies and developing my technical and interpersonal
• skills. Customer interaction and solving complex issues is part of daily job here.
• My other responsibilities in Cisco includes following:
•  Troubleshooting customer's complex issues on Router/Switch crashes, Memory
• leak/corruption, High CPU, Data plane forwarding issues and CP/DP programming issues.
•  Replicating the customer's issues in the lab for RCA and speedy resolution.
•  Collaborating with different Tech teams, BU and Dev team to resolve customer's issues.
•  Filing software defects for the newly found issues and track them until resolutions.
•  Delivering trainings on the new and complex technology to the new team member and other
• teams to upskill them.
•  Troubleshooting routing issues like BGP, OSPF, Multicast.
•  Upgrading the IOS on the device.
•  Deploy lab on VM using the different tools like ESXi, vSphere, NetSim, VMmaestro, IXIA,
• VM Workstation.
•  SDWAN lab using vManage, vBond, vClient, vSmart to understand the basic concepts of SDWAN
• and getting ready to pick new technology cases.
• Platforms:
• Routers: ISR G1/G2 series, ISR1000, ISR4K series, ASR1000 series, 2900/3900.
• Switches: 3560, 3650, 3750, 4500, 6500
• OS: IOS, IOS-XE
• Protocols: Multicast, NAT, QOS, SNMP, Netflow, OSPF, BGP, NBAR, VRF, PBR, CEF,
• TCP/IP, GRE, DMVPN, IPSEC, DHCP, DNS, HSRP, VRRP, BFD, VPN, PIM, IGMP, MSDP,
• ARP, IP, ICMP, Tunnels, Smart licensing.
• Virtualisation: VMware, vSphere, ESXi, NetSim, VIRL.
• Network Programmability: Netconf, Restconf, RestAPIs
• Scripting: EEM, TCL, Python
• Capturing/Tools: EPC, Packet Trace, IXIA, GNS3, Wireshark, EVE-NG.

Oct 2017 – Mar 2019 · 1 yr 5 mos · Bengaluru Area, India

• Joined CSS Corp as Aruba TAC engineer for AT&T project to work on all the escalated issues.
• Later once the project got over, became the part of Aruba ClearPass TAC team.
•  Maintenance of AT&T network for any issues related to Wireless, Controller, Routing,
• ClearPass authentication on HPE Aruba devices.
•  Worked for AD-Authentication from ClearPass server using LDAP.
•  Understanding of Protocols like Radius, TACACS, Dot1x, EAP-PEAP, EAP-TLS
•  Troubleshooting of Aruba WLC, Switch and Instant AP.
•  Highest point of escalation for the AT&T wireless issues.
•  Migrating the server on different virtual platforms like Azure, Google, Amazon.
•  Maintaining HA in cluster of multiple ClearPass servers.
•  Resolving the tickets on L2 roaming, L3 roaming, client disconnection, Authentication issues.
•  Issue related to OSPF, BGP, MAC authentication based vlan assigning, COA.
•  Working on lab repro for critical customer issues.
•  Troubleshooting ZTP (Zero touch provisioning) issues.
• Platforms:
• Clearpass: Licensing issues, Clustering, Issues onboarding BYOD Devices, End point security
• compliance with OnGuard, Dot1x (EAP-PEAP)/ (EAP-TLS), Mac Authentication, RADIUS, TACACS,
• Onboarding, Onguarding.
• Controllers: Aruba 7005, Captive portal, ZTP, clustering, COA,
• Access point: IAP-3xx, AP-2xx, CAP, L2 roaming, L3 roaming, BYOD, AAA, Client
• disconnection, SSID, Interference, RSSI.
• Cloud Technology: Aruba Central.
• Deployment/ Migration: Azure, AWS, ESXi.

Jun 2016 – Sep 2017 · 1 yr 3 mos · Gurgaon

• Providing L1 support to BT customers.
•  Picking the cases from and perform the basic checks in customer setup.
•  Escalate the ticket to correct team in case of complex troubleshooting is required.
•  Perform health check on customer setup and understand the requirement and issue of the
• customer.
•  Probe customer to get the correct and relevant information related to the setup.

Jun 2015 – Jun 2016 · 1 yr · Gurgaon, India

• Monitoring the Telecom network for any issues related to network down or infra alarms.
•  Escalating the ticket via calls or email to the Cluster Manager or FE.
•  Check the connectivity between the BTS and BSC.
•  Maintain the connection health between the BSC and MSC.
•  Worked on TeMIP Client V6.4 & UOC (Unified OSS Console)
•  BMC Remedy