Karthikeyan Sampathkumar

TECHNICAL SKILLS

• CI/CD Pipeline Development - Azure DevOps,Bamboo
• Cloud platforms - Azure,AWS
• Operating system - Windows Server, Linux
• Scripting - Powershell ,Python
• Iaas - Terraform
• Version Control System - GitHub,Bitbucket

Cloud-to-Cloud Migration (AWS to Azure)

• Implemented Azure Migrate Service for seamless migration and utilized Application Gateway, Load Balancer,APIM, WAF, and vWAN to optimize performance and security.

On-Prem to Cloud Migration (On-prem to Azure)

• Successfully onboarded customers to Azure Cloud by provisioning infrastructure and servers. Conducted thorough post-testing and executed seamless data migration from on-premises environments to Azure, ensuring minimal downtime, and optimal performance.

DevOps and Automation.

• Eliminated manual OS patching efforts by 100% through the implementation of Azure Update Manager.
• Automated the deployment of microservices on Docker using Azure DevOps Pipelines.
• Streamlined Azure infrastructure provisioning, including Resource Groups, Virtual Machines, Disks, NICs, NSGs, VNets, and Peering, using Terraform and PowerShell integrated with Azure DevOps Pipelines.
• Developed automation to handle VM generation conversion from Gen 1 to Gen 2 and upgrade disk types seamlessly.

Web Services Security and Optimization.

• Automated the deployment of Azure Front Door and CDN profiles with WAF to enhance web service protection and availability.

Backup and disaster recovery

• configured disk backup with protection policies as part of the Business Continuity Center initiative.
• Automated SQL backups to Azure Blob storage for improved data resilience.

Performance Optimization

• Configured metric monitors in New Relic and integrated them with Google Chat for real-time alerts and 24/7 monitoring.
• Deployed Front Door and CDN profiles with Web Application Firewall (WAF) to secure applications against threats while improving performance and availability.
• Implemented API Management services with Azure Front Door, and protected with WAF.
• Automated Azure infrastructure provisioning using Terraform within a DevOps pipeline, including provisioning for servers, backup solutions, and storage, to ensure consistency and scalability, while managing the day-to-day operations of Azure cloud infrastructure, including troubleshooting issues and implementing security patches.
• Good knowledge of Azure services like VM, Disks, NIC, IPs, NSG, RG, IAM roles, Azure key vaults,storage accounts, Application gateway, Load balancers, Business Continuity center, Hostpools, Azure virtual Desktop, Network Managers, API, WAF, and Image gallery.
• Hands-on experience in AWS provisioning and good knowledge of AWS services like EC2, S3, ELB, IAM, Route 53, VPC, Auto Scaling Group, CloudFront, CloudWatch, ECR, and Security Groups.
• Configured static pods and deployments in AKS, and enabled horizontal pod autoscaling.
• Configured VM reservations based on Azure Advisor recommendations to optimize cost efficiency.
• Proficient in creating intuitive monitoring dashboards using Azure Monitor, New Relic, and Looker Studio.

• To ensure there is 24/7 availability of the network, and to resolve any network-related outages.
• Managing Trimble's own infrastructure:
• Responsible for configuring solar wind, adding new network devices, configuring policies, and pushing configurations so that the NOC team L1 runs a smooth operation.
• Create a dashboard and NOC view related to the requirements of the Network team to ensure proactive monitoring services are provided by the downstream teams.
• Responsible for troubleshooting any issues related to switching, routing, and firewall.
• Responsible for configuring STP, TACACS, AAA, DHCP snooping, and troubleshooting the same whenever an issue occurs.
• Configuring Dell N series access switches, upgrading the Dell device firmware, N3024, N3048, N3248 series, and N3248-PX-ON switches.
• I have worked on DMVPN, configuring tunnels, generating certificates, and addressing user-related issues on the VPN whenever they occur.
• Checking on BGP, EIGRP issues, and coordinating with the ISP whenever there is an outage.
• Configuring auto failover on the network device, manually routing the traffic to another link whenever the need arises.
• Worked on ASA, Firepower, and Fortinet firewalls.
• Configuring ACL, NAT, generating certificates, taking backups, etc. As per the requirement of the user, whenever they would like to access a new service.
• Configuring firewall port requests, whitelisting IPs, and ports as per the requirements of the user.
• Performing iOS upgrades on all network devices in a timely manner whenever the firmware needs an upgrade.
• Configuring policies on the firewall as per the requirement.
• Perform the implementation and migration of old network devices to new network devices: switches, routers, and firewalls.
• Responsible for the firewall OS upgrade.
• Certification No: I457- 3662
• Tools/Devices Used: Putty, Cisco, Dell, HP, Juniper switches, routers, SolarWinds, Beamon, Cisco ASA, Firepower, Fortinet firewall, VM Workstation, CRM, ServiceNow.

• Responsible for providing technical solutions, configuration changes and customer service support for INDIAN FINANCIAL & TECHNOLOGY ALLIED SERVICES (IFTAS/ RBI), Member Banks
• Managing RBI and its regional office data centers and all the banks at India.
• Troubleshoot and identify problems related to Juniper and configuring routing protocols such as BGP, OSPF, RIP, and EIGRP for customer last mile.
• To troubleshoot the connectivity on Layer 3 and Layer 2 in case there are access problems for customers (VPN, and MPLS VPN).
• Identify and resolve problems on high end Switches, Routers, Firewall (Cisco & Juniper& CISCO ASR) & Palo Alto firewall.
• Proactive monitor and maintain customer databases and send the required details on customer utilization's, latency, TT Raised etc
• To troubleshoot the various last miles, which involve Broadband, Leased lines.
• To troubleshoot the latency and packet drops and application server reach ability issues faced by the customers and providing best path in reaching their destinations across the world.
• Implementation & troubleshooting of VLAN, high availability solutions like VRRP, access control lists, NAT, PAT, routing solutions etc
• Coordinating with internal teams for quicker resolution of issues.
• Configuring Access-Lists for implementing security and applying rate-limit in last mile.
• Coordinating with the Global partners including Level3 and PCCW, TTSL, TTML, TCL, Airtel, Reliance in resolving the issues related to global customer.
• Supporting for creating and troubleshooting the GRE VPN, IPSEC VPN Firewall Expertise
• Responsible for implementing firewall related changes to the client's service requests, in accordance with security approval via proper change management
• Configuring zones, security policies, URL filtering, SSL Outbound decryption, IP Sec, NAT & PAT policies
• Responsible for firewall OS upgrade
• Firewall and router configuration changes as per the business requirement.
• Develop, implement and update security principles supporting customer migrations, configurations and implementations.
• Implement, configure and troubleshoot VPN's and Secure Remote related issues.
• Tools Used: Putty, Solar winds, Beamon, Palo alto firewall, VM Workstation, CRM.

• Assisting enterprise and carrier customer to get the required Service and products delivered within the requested time margin.
• Validating IP addresses, QoS split-ups, ensuring VPN failover mechanisms.
• Supporting for Service change requests like QoS, Bandwidth, network advertisements.
• To liaise with carriers to get the feasibility issues for the given sites.
• Building Access, bearer for the customers
• Experience in configuring SNMP & VLAN
• Handling customers with Smooth interaction, understanding their requests and working on the same without violation of Service Level Agreement (SLA)
• Listening to customer requirements and presenting appropriately to make sales
• Maintaining and developing relationships with existing customers in person via calls and mails
• Cold calling to arrange meetings with potential customers to prospect for new business
• Responding to incoming mails and phone queries
• Acting as a contact between a company and its existing and potential markets