Karthik Loganathan

• I have been a key member in the planning, Building, implementing the AWS to Azure Migration of the infrastructure & micro-services of Order Fulfillment team over the last 2 years.
• I have worked on IAC tools such as Terraform & Terragrunt wrapper for last 2+ years. I have automated the creation of OFS infrastructure on Azure using Terraform & Terragrunt.
• Azure : Having Strong knowledge & hands-on experience on

Compute resources such as AKS, VMSS , VMs.

Container resource such as ACR, Azure functions.

DBs like Azure redis cache, Azure PG Flexible server.

DevOps tools like Azure DevOps , Azure pipelines, Azure Data factory.

Storage services like Azure container Storage, Blob storage & storage accounts.

Security concepts like Azure Key-vault, Nat-gateway.

Networking resources such as App Gateway, Private & Public DNS, VNET, NSGs.

Azure-CLI.

• Azure DevOps : Have automated the CI & CD process using Azure pipelines in ADO which automatically triggers Build pipeline when code is checked in, PR pipeline when PR is raised, Release pipeline when PR is merged and creates relevant Artifacts/tags, which will then be used to Deploy it to the Desired Environments post the required approvals.
• Disaster-Recovery process Automation : I have single handedly worked on analyzing, Planning. testing, documenting and implementing the Disaster recovery process of Moving application or services from one Azure region to another region [vice-versa] through azure pipelines in case of any Disaster with minimal/ no Downtime.
• AWS : Having Strong knowledge & hands-on experience on EC2, Lambda, ELB, ECR, RDS, Route 53, API gateway, Secrets Manager, Cloudwatch, S3, EBS.
• Kafka :

have been working on Kafka for troubleshooting any Eventing related issues.

having good understanding of the working of Zookeeper & Kafka brokers, eventing, consumer-groups, off-sets, partitions & mirrormaker 2.

Have been part of the confluent Kafka version upgrade from 1.x to 2.x on all environment kafka brokers.

Have been part of planning, building & migration of Kafka Cluster from AWS to Azure.

• Couchbase :

Have strong knowledge on Couchbase cluster, Reads, writes, mutations, XDCR concepts.

Have done Couchbase Version upgrade from 5.x to 6.x on all env CB clusters.

• Postgresql :

Have automated the Data migration of Postgresql from AWS to Azure & from one Azure region to another region schema wise using Azure pipelines.

have worked on automation of postgresql creation & schema/role creation through IAC terraform.

• BASH / SHELL scripting:

Having intermediate skills in Shell scripting.

Made use of shell script in pipeline yaml files to migrate postgresql data, update DNS Cnames, deploy applications, creating kustomize files etc.

• knowledge on containerized platforms like Docker, docker swarm, Kubernetes
• Have worked on configuration management tools like Ansible, Chef, puppet
• Have immense knowledge on GIT, GITHUB, Jenkins, SONARQUBE, TestNG, SNYK
• Automated the Jenkins Build pipelines for Continous Integration
• Automated the CD through Spinnaker CD tool on AWS Cluster
• Set up End to End monitoring through Appdynamics and Splunk for application & Infra monitoring
• Have created Realtime Sync and Async Dashboard using Splunk and Appd Analytics.

• Development Knowledge in TIBCO BW, EMS, Admin and AMX Services
• Inducting sellers and supplier products on to the TESCO GMO website through the FTP and API channels
• Managing General Merchandise website and Marketplace Operations
• Providing Third level support on Pre-Order and Post-Order queries from Sellers/suppliers
• Maintain the SLA of 99% on all TESCO Marketplace Applications
• Analyze information to determine, recommend and plan installation of a new system or modification of existing system
• Coordinate installation of software system
• Applying patches to all the infrastructure in our Marketplace domain
• Deployment of all the new code enhancements on the Marketplace Application and web servers using Tools like Jenkins and NOLIO
• Modify Existing software to correct Errors, to Adapt it to new hardware, upgrade interfaces and improve performance.

• Providing Second level support on Tesco Merchant hub Application which is used by Tesco sellers to manage their day to day trade with Tesco
• Worked on Oracle SQL Database, Unix Application Servers, Windows Web Servers with ModJK config as part of the BAU process.

• Managed Product management, order management and returns for all Dropship Suppliers
• Monitor Supplier performance to access ability to meet quality and delivery requirements
• Analyze information about supplier performance or procurement program success
• Develop or implement procedures or systems to evaluate
• Document physical supply chain processes, such as workflows, position responsibilities and system flows
• Define performance metrics for suppliers.

• Provide First level Support to Tesco Stores on issues related to Checkouts, Back office computers, schedulers, Price and promotion issues, Petrol filling station.

• Worked in Process called Endurance international Group
• Endurance is an US Based webhosting company which has acquired more than 20 Webhosting companies in US
• They provide Web hosting, Email hosting and domain services
• I worked as a Level 2 Technician Handling Escalation call from level 1
• Worked on Tickets raised by Level 1 related to Customer website and domain issues.