Shashanka Ramakrishna

Network delivery and architecture support:

• Responsible for building and managing multi tenant environment hosted in IBM Cloud across multiple geographies and regions consisting of more than 200+ customers.
• Responsible for building and managing juniper virtual SRX firewalls and Vyatta routers hosted on Vmware ESXI hypervisors and Bare metal servers.
• Perform complex customer network deployments.
• Worked on testing multiple firewall OS to make sure they are compliant and perform to architectural standards.
• Provided 2nd and 3rd level technical support and troubleshooting to internal and external clients.
• Establishing and managing IPSEC tunnels and MPLS connectivity to customer servers hosted in IBM cloud to their On-premise environment using static and dynamic routing protocols.
• Migrating Customer firewalls from Vyatta to Juniper vSRX and from ESXI based to ubuntu based KVMs.
• Supporting customers to perform Disaster recovery tests on their environments.
• Configuring firewall and NAT rules as per security standards.
• Perform firewall rule validations to make sure firewall rules are as per client security standards.
• Executed internal and customer network projects to support internal integrations and customer requirements.

Network Solutions Support:

• Supported Clients by providing Network solutions for their migration from On-prem to Cloud and migrations between Hypervisor.
• Understanding customer application and network connectivity to design network solution as per standard architecture.
• Creating network diagrams to present the design to the clustomer.
• Support client and delivery teams in solution implementation and go live.

• Worked as Network implementation engineer for customer with offices in multiple geographies.
• Implementation of Network Infrastructure as per Customer standards.
• Working on infrastructure projects from planning to onboarding of Network infrastructure
• Implementing Switches, Routers, Silver Peak SDWAN appliances as per design on Customer Branch offices
• Performed OS upgrades of Switches, Routers and SDWAN appliances
• Implementation and Configuration of Palo Alto Firewalls
• Implementation and Configuration of Meraki APs
• Acquiring Knowledge Transition from Customers on new sites and transferring knowledge to operations team.

Cloud Data Center:

• End to end management of Microsoft Hyper-V cloud involving various components.
• Troubleshooting issues on SCVMM, Windows Azure pack, Hyper-V and Hyper-V Network Virtualization.
• Installation of patches and Update rollup on System center 2012 R2 server and Hyper-V hosts.
• Managing VMs using SCVMM and Windows Azure pack.
• Management of Tenant subscriptions to cloud using Windows Azure pack.
• Renewing SSL and PKI certificates on servers.
• Adding additional storage to Hyper-V host cluster.
• Performing VM and VM storage migration to resolve storage issues by using SCVMM.
• Troubleshooting Network issues at OS and Network layer.
• Creation of SOPs for different technologies.

Data Center Network:

• Managing Data center Network infrastructure consisting of Switches, Routers and Firewalls.
• Configuration of Load balancers, Firewalls, Router and Switches.
• Working with multiple L2 and L3 protocols as a part of configuration and Troubleshooting.
• Adding and modifying Access rules and address translations to allow and deny network traffic on firewall.
• Troubleshooting network issues by means of packet capture on firewall.
• Working with Data center technicians to resolve hardware issues.
• Troubleshooting load balancer issues.
• Troubleshooting complex issues and be part of Severity 1 issue to provide expert level advice and resolve issues within agreed SLA.

Enterprise and Data Center Network:

• Managing Data center and Site level Network infrastructure consisting of Switches, Routers, Firewalls and load balancers.
• Configuration of Load balancers, Firewalls, Router and Switches.
• Working with multiple L2 and L3 protocols as a part of configuration and Troubleshooting.
• Adding and modifying Access rules and address translations to allow and deny network traffic on firewall.
• Working on Visio to create various sites Network diagrams.
• Troubleshooting network issues by means of packet capture on firewall.
• Working with Data center technicians to resolve hardware issues.
• Modifying VPC links on switches to increase bandwidth.
• Configuring and management of IPSEC site to site VPNs.
• Configuring SNMP and SSH protocols on switches, routers and firewalls.
• Troubleshooting load balancer issues. SSL Cert renewal, VIP creation, URL redirection , removal and modification.

• Responsible for deploying networking devices as per design requirement in Datacenters across the world
• Creating network design templates with device connections, datacenter Colocations and network architecture information
• Creation of Standard Operating Procedures for Deployment of Networking devices as per design requirements
• Responsible for upgrading operating Systems of Cisco Nexus 3k switches and Citrix Netscaler loadbalancers
• Coordinating with Datacenter technicians to troubleshoot any physical issues with the networking devices
• Implementation and troubleshooting of VLANs, Access lists, L2 and L3 port channels,Basic QOS and BGP configuration for Nexus 3K devices
• Implementation and troubleshooting of VLANS, portchannels,access lists and routes for Citrix Netscaler 8600, 10500 and 13500 devices
• Responsible for decommissioning and migration of network devices.

Responsibilities:

• Responsible for monitor, maintain and remediate WAN links and network infrastructure including routers, switches.
• Analyze problems, perform troubleshooting, communicate with site technicians and other teams, and track problems through resolution.
• Monitoring activity, such as network usage, temperatures also ensure core network is stable.
• Create and maintain documentation about process, network connections, and design.
• Responsible for coordination and troubleshooting Circuit related issues with international ISPs.
• Provide remote technical supports to site / location engineers.
• Restoration of link within SLA by triggering backup and interacting with service provider for maximum uptime of connectivity.
• Raising Purchase order in SAP with proper material codes and issuing to vendor accordingly.
• Configuration of MM Organizational Elements, Article change tool, Flex tools to suit business requirements.
• Expertise in MM Documents – RFQs, Purchase Requisitions, Purchase Orders, Goods Receipt, Goods Issue, Invoice Verification.
• Release strategies for PR and external purchasing documents and Pricing Procedure determination.