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Tejasai Andem - DevOps/Cloud/SRE Engineer

[email protected]

Location: Remote, Remote, USA

Relocation:

Visa: GC

Tejasai Andem Sr. Cloud DevOps Engineer [email protected] | (940) 373 2326 | https://www.linkedin.com/in/tejasaiandem/ PROFILE SUMMARY Sr Cloud DevOps engineer with over 10+ years experience in Cloud (Azure, AWS), DevOps, Configuration management, Infrastructure automation, Continuous Integration and Delivery (CI/CD). Experience in dealing with Unix/Linux and Windows server administration. Hands-on Experience Administrating Microsoft Azure Services like Azure App Services, Azure SQL Database, Azure AD, Azure Blob storage, Azure Functions, Virtual machines, Azure Fabric controller, Azure Data Factory, Azure web applications, Azure Service Bus, and Notification hub. Experience in designing Azure Resource Manager (ARM) Template to deploy multiple resources as well as in designing custom build steps using Power Shell and Developed PowerShell scripts and ARM templates to automate the provisioning and deployment process. Expertise in using Packer tool to generate Virtual Machines (VM) from the base OS Image and experience in using Azure Shared Image Gallery to store VM Images and Share the Images automatically across multiple Regions/Subscriptions. Seasoned in Configuring Azure Automation Desired State Configuration (DSC) configuration management to assign permissions through Role-Based Access Control (RBAC), assign nodes to proper automation accounts and DSC configurations, to get alerted on any changes made to nodes and their configuration. Expertise in Designing and implementing Continuous Integration (CI) throughout many environments utilizing Azure DevOps tools to provide an agile development process that is automated and repeatable, allowing teams to safely deploy code several times per day while ensuring Azure Kubernetes Services (AKS) are supported. Well versed in using Azure Infrastructure as a Service (IaaS), Provisioning VMs, Virtual Networks, Deploying Web Apps, Microsoft SQL Server, using ARM Templates, and Azure DevOps CI/CD pipelines. Expertise in configuring the Monitoring and Alerting tools according to the requirement like Prometheus and Grafana, setting up alerts, and deploying multiple dashboards for individual applications in Kubernetes. Experience in Configuring VNET Peering using Terraform Modules and configuring NSGs for two tiers and three-tier applications were set up to filter network traffic, to facilitate connectivity between resources across various Virtual Networks. Hands-on experience in developing complex models in Deep Learning for Computer Vision using Tensor Flow on cloud infrastructure. Experience in building Docker images using GitLab-ci build automation runner Experience in Setting up the build and deployment automation for Terraform scripts using Jenkins. Expertise in Architecting and Implementing Azure cloud services such as Azurestorage, IIS, Azure Active Directory (AD), Azure Resource Manager (ARM), Azure Storage, Azure, BlobStorage, Azure VMs, SQL Database, Azure Functions, Azure Service Fabric, Azure Monitor, and AzureService Bus. Managed and administered Azure Active Directory (Azure AD) to ensure secure and efficient user authentication and access control across the organization's cloud resources. Involved in various AWS networking and content delivery systems like Route 53, Direct Connect, VPC peering and management tools like CloudWatch, Athena and CloudTrail. Setting up Blue/Green Deployment Strategies for AppService, AKS/EKS Cluster Services. Expertise in Azure Development worked on Azure web application, App services, Azure storage, Azure SQL Database, Azure Virtual Machines, Azure AD, search, Azure DNS, Azure VPN Gateway, and Notification hub. Implementing CI-CD pipelines with Jenkins, Azure DevOps and Containerizing the application and deploying it on to AKS Cluster using Helm Charts deployment. Maintaining servers by managing packages using Ansible playbook. Managing users and groups using Active Directory, UNAB for controlling user access. Expertise in Deploying Microservice Containers into Kubernetes using HELM Charts and Setting up Istio Service Mesh in K8 s. Implemented a CI/CD pipeline using Azure DevOps pipelines, GitHub Actions and Jenkins in both cloud with GIT, Docker, Maven along with Jenkins s plugins. Experience in writing Infrastructure as a code (IaC) in Terraform, Azure resource management, AWS Cloud formation. Created reusable Terraform modules in both Azure and AWS cloud environments. Hands-on in using OpenShift for container orchestration with Kubernetes, container storage, automation, to enhance container platform multi-tenancy. Experience in configuring and maintaining Linux applications with network protocols such as SSH, DNS, DHCP, HTTP, HTTPS, NFS, BIND, FTP, LDAP, Samba, and NFS. Experience in Certificate Management for Servers, created and managed OpenSSL certificates for secured Server-Client communication, maintaining confidentiality, message, and bilateral Authentication. Professional in deploying and configuring Elasticsearch, Logstash, Kibana (ELK) and AWS Kinesis for log analytics and skilled in monitoring servers using Nagios, Splunk, AWS CloudWatch, Azure Monitor and ELK. Experience in Monitoring server performance with tools like Nagios, Splunk, Dynatrace, Datadog, New Relic and resolved network related issues with manual commands and built Splunk Cluster environment with High Availability resources. Implementation of JIRA to track all issues pertaining to SDLC and Integration of JIRA with GIT repository to track all code changes. Proficiency in the principles and best practices of Software Configuration Management (SCM) in Agile, Scrum, and Waterfall methodologies. EDUCATION Bachelor s in ECE, JNTUH, Telangana, India -2011 Master s in information systems, UNT, USA -2012 TECHNICAL SKILLS Cloud Platforms Microsoft Azure, AWS,GCP AWS Services EC2, VPC, IAM, EBS, S3, ELB, Auto Scaling, Elastic Cache, API Gateway, Route 53, CloudWatch, SQS, SNS, SWF, AWS Database Migration Service, AWS Application Migration Service, AWS Glue Azure Services App Services, Key vault, Function app, Blob storage, Azure Active Directory (Azure AD), Service Bus, Azure Container Registry (ACR) and Azure Kubernetes service (AKS), Azure SQL, Azure Cosmos DB, Azure RM templates, Azure Data factory, Azure Databricks, Azure Data Lake Infrastructure as Code (IAC) Terraform, AWS CloudFormation, Azure Resource Manager (ARM) Templates Source Code Management SVN, Git, GitHub, GitLab, Bitbucket, Azure Repos and AWSCodeCommit. Build Tools Maven, Ant, Gradle, MS Build CI/CD Jenkins, Azure DevOps Pipelines, GitHub Actions, GitOps, Argo CD. Artifactory Jfrog and Nexus Container Orchestration Docker, Kubernetes, Open-Shift, Helm, EKS, AKS. Configuration Management Tools Ansible, Chef, Puppet Web Servers Nginx, Tomcat, Microsoft Internet Information Service (IIS). Application Servers JBoss, Oracle WebLogic Server, IBM WebSphere Application Server. Logging Cloud Watch, Cloud Trail, Azure App Insights, Azure Monitor Monitoring Tools Nagios, Splunk, Grafana, Prometheus, ELK, New relic, Datadog, Dynatrace Databases Amazon RDS, Amazon DynamoDB, Amazon Aurora, Amazon Redshift, Azure Cosmos DB, Azure My SQL DB, Azure PostgreSQL, Cassandra Scripting Languages Python, Shell scripting, Groovy, Bash, YAML Documentation Confluence Operating Systems Microsoft Windows, Linux, UNIX. Tracking Tools Jira, ServiceNow & Remedy. Programming Languages C, C++, Python, Java, Golang, Ruby EXPERIENCE PNC Financial Services, Pittsburgh, PA April 2022 to till now Sr Cloud DevOps Engineer Worked on Microsoft Azure Cloud (Public) to give IaaS support to customer. Make Virtual Machines through Power Shell Script and Azure Portal. Overseen and Created Storage Account and Affinity Group in Azure Portal. Designed and configured Azure Virtual Networks (VNets), subnets, Azure network settings, DHCP address blocks, DNS settings, and Security policies & configured BGP routes to enable ExpressRoute and site to site VPN connections between on-premises data centers & Azure cloud. Led implementation of Azure Active Directory for single sign-on and Authentication for Web Applications. Also configured Azure Role-based Access Control (RBAC) to segregate duties within our team and grant only the amount of access to users that they need to perform their jobs based on Roles defined. Created and deployed VMs on the Microsoft cloud service Azure, created and managed the virtual networks to connect all the servers and designed ARM templates/Terraform for Azure platform. Configured three types of blobs, block blobs, page blobs, and append blobs in Azure for storing a large amount of unstructured object data such as text or binary data, that can be accessed via HTTP or HTTPS and enabling data redundancy and Lifecycle Rules and Events. Worked on Managing the Private Cloud Environment using Ansible and Enhanced the automation to assist, repeat and consist of configuration management using Ansible based YAML scripts. Setup custom Domains and configure network security group (NSG) rules to specify ingress/egress traffic restrictions. Worked on Terraform to create the various services like AKS, ACR, VNET, VM ..etc as infrastructure as code in various environments as per the project need Created inventory in Ansible for automating CD & developed Ansible playbooks and Roles using YAML scripting. Used ELK stacking to monitor the logs for detailed analysis, worked on dashboarding using Elastic, Logstash & Kibana (ELK), & setup real time logging & analytics for CD pipelines & applications. Worked on creation of Docker images on top of micro services and deployed on Azure Kubernetes services. Worked on Kubernetes cluster creation and creation of Deployments, services, RBAC and Ingress. Worked on using a GIT branching strategy that included developing branches, feature branches, staging branches, and master. Pull requests and code reviews were performed. Azure Automation through Runbooks Creation, Migration of existing .PS1 scripts, Authorizing, Configuring, Scheduling. Configured ServiceNow to receive any instant notifications of any configuration changes in cloud environment by orchestrating through Logic Apps. Migration of on-premise data (Oracle/ SQL Server/ MongoDB) to Azure SQL/CosmosDB using Azure Data Factory. Experience in Azure infrastructure management (Azure Web Roles, Worker Roles, SQL Azure, Azure Storage, Azure AD Licenses) using Terraform and managed Azure Infrastructure through Blueprints and Landing Zone. Experienced in utilizing Azure Stack (Compute, Web &Mobile, Blobs, ADF, Resource Groups, Azure Data Lake, Azure Data Factory, Azure SQL, App Services, and CosmosDB) and services for configuring and deploying Azure Automation Scripts for multiple applications. Deployed multiple microservices into Azure Kubernetes by Dockerizing them and using Jenkins and Azure DevOps. Migrated the Build forge projects to Azure DevOps with all the work items, source codes, build and release pipelines by using custom PowerShell tool. Developed build workflows using Gradle, Gitlab-CI, Docker and Openshift. Integrated Docker container orchestration framework using Kubernetes by creating pods, and deployments. Extensively used Azure PaaS solutions and hosted Isolated App service environment integrated with PaaS Azure SQL and Virtual network to host different type of applications like Web app, API App, Function App etc. Create CI/CD pipelines for the deployment of services and tools to the Kubernetes cluster hosted on Bare metal. Deployment of CNF on Kubernetes clusters using Helm charts and TCA tool. Monitors the Kubernetes Cluster jobs and performance. Working on upgrading Kubernetes cluster, commissioning & decommissioning of Nodes, Pods Configured Azure cloud services, Azure Firewalls, Azure IAM (SSO/MFA/RBAC), Azure Active Directory (AD), Azure Resource Manager (ARM), Azure Storage, Blob Storage, Azure VMs, IIS, SQL Database, Azure Functions, Azure Service Fabric, Azure Monitor, and Azure Service Bus et., Implemented Cloud security controls in SecOps including but not limited to Encryption, Tagging, Container Security, Golden AMI policy, IDS/IPS, NSG management, Service Endpoints, DDoS Etc., Configured Azure Security using RBAC, Azure Security Center and Azure Monitor services. Configured Azure Infrastructure Automation using Terraform scripts and launched various services like AKS, ACR, VM, VN..etc Designed Network Security Groups (NSGs) & Load Balancer to control inbound and outbound access to network interfaces (NICs), VMs and subnets. Experience in creating the infrastructure by using the Terraform for various environments. Implemented HA, Reliable deployment models with Azure Classic and Azure Resource Manager. Configured Azure Active Directory and IAM to manage users and groups privileges also user account management (SSO/SAML) and multifactor authentication. Involved in firewall deployment and management in Azure such as Palo Alto, Azure Firewall. Implemented automate build & operational tasks using Python and Power Shell scripts. Implemented Serverless Cloud Services using Azure Functions with application insights. Implemented a CI/CD pipeline using Azure DevOps (VSTS/TFS) in both cloud and on-premises with GIT, MS Build, Docker, Maven along with Jenkins pipeline builds & YAML/JSON. Developed and maintained Continuous Integration (CI) using tools in Azure DevOps (VSTS) spanning multiple environments, enabling teams to safely deploy code in Azure Kubernetes Services (AKS) using YAML scripts and HELM charts. Worked on creating, configuring, and managing AKS clusters in Azure, including managing node pools, configuring networking, and setting up load balancing. Managing the Azure Kubernetes Services (AKS) policies, providing access to different Azure resources and developing and improving the workflows that govern access. Monitoring and troubleshooting Kubernetes clusters using Prometheus and Grafana. Worked Grafana to monitor and visualize system metrics, application performance, and other data sources. Experienced with developing Ansible Playbooks, Modules and Kubernetes Nodes, Pods, Config Maps, Selectors, Services etc., Environments: Git, GitHub, Azure App Services, Azure Application Insights, Azure Application Gateway, Azure DNS, Azure Security groups, Azure Functions, Active Directory (AD) services, Bitbucket, Docker, Jenkins, SonarQube, private container registry, Docker, OpenShift, Kubernetes, Terraform, Ansible, Azure Data Factory, Prometheus, Grafana, New Relic, Azure Synapse Analytics, Azure Cache. Sammons Financial Group, Des Moines, Iowa Sep 2020 to Mar 2022 Cloud DevOps Engineer Migrated the current Linux environment to AWS/RHEL Linux environment and used auto scaling feature and involved in Remediation and patching of Unix/Linux Servers. Configured and managed Cloud Infrastructure in AWS including EC2, Route53, S3, RDS, Lambda, EFS, S3 Glacier, Resource Access Manager, IAM, Cloud Front, Cloud Watch, Elastic Load Balancer, Security Group, focusing on Auto scaling and high - availability. Used GIT as SCM in branching, tagging, and maintaining the versions across the environments and used for recovering files, saving changes for later (Stash), creating tags, viewing logs etc. Created and configured GitHub Actions workflows to automate application builds for Java, .NET, and Progress applications, enabling seamless continuous integration across multiple technology stacks. Built scripts using Maven in Jenkins and SonarQube for continuous delivery through Deployment from one environment to another environment. Deployed applications into PROD & Pre-Prod environments with various Web-Application servers like Jboss & Apache Tomcat. Developed and maintained continuous integration and deployment systems using ANT, Maven, Gradle, JUnit, Selenium, SonarQube, Jfrog, and Nexus. REST API and serverless development using Node.js on AWS Lambda, SQS, SNS, SES and API Gateway. Leveraged Boto3, the Python SDK, to build scalable and secure applications on AWS. Used Boto3 for programmatic access to AWS services like EC2, S3, and DynamoDB from Python code. Container builds/deployments using Multi-Stage Dockerfiles, Docker Compose and Docker Swarmstacks. Implemented a production ready, load balanced, highly available, and fault tolerant Kubernetes infrastructure. Worked on Kubernetes to manage containerized applications using its nodes, ConfigMaps, selector services and deployed application containers as Pods. Managed Clusters using Kubernetes and worked on creating many pods, replication controllers, services, deployments, labels, health checks. Design, build, secure and manage clusters/workloads running on self-managed Kubernetes (Kops), Amazon EKS (Amazon Kubernetes Service), Amazon ECS and AWS Fargate. Implemented deployments into AWS EC2 instance using Terraform and managed, maintained added plugins to support new functionalities of Terraform. Worked on Terraform for managing the infrastructure through the terminal sessions and executing the scripts for creating alarms and notifications for EC2 instances using Cloud Watch. Migrated Containers running at On-Prem OpenShift cluster to EKS Cluster by writing HELM Charts and Integrated with Jenkins. Proficient in utilizing the Terratest framework to automate testing and validation for Terraform infrastructure deployments, ensuring correctness and stability, thereby enhancing reliability and efficiency. Experienced in effectively managing Terraform state files to maintain infrastructure-as-code consistency, ensuring proper tracking, version control, and collaboration across teams, contributing to streamlined and efficient deployment workflows. Used Ansible and Ansible Tower as Configuration management tool, to automate repetitive tasks, quickly deploys critical applications, and proactively manages change. Configured and managed S3 versioning and lifecycle policies to backup files and used Glaciers to Archive data. Deployed OpenShift Infrastructure Through Terraform and configured the Master Nodes, Infrastructure Nodes, and application nodes. Implemented centralized container logging and monitoring using CloudWatch, Prometheus, Grafana. Design, build and manage the ELK (Elasticsearch, Logstash, and Kibana) cluster for centralized logging and search functionalities for the App. For better caching of images, implemented Amazon CDN (Content Delivery Network) using Cloud Front to deliver data with less latency and high performance. Setting up Jenkins Credentials with AWS Secrets Manager for storing Application configuration data all App Settings changes. Written Lambda functions in Python for AWS Lambda, Kinesis, and Elastic Search, which invokes Python and Bash Shell scripts to perform various transformations and analytics on large data sets in EMS clusters. Solution and implement object storage using AWS S3, CloudFront, Akamai, and Cloudflare Used Jira for defect/issues logging & tracking and documented all work using Confluence. Environments: Git, GitHub, GitHub actions, Jenkins, Maven, Gradle, Selenium, SonarQube, Jfrog, Nexus, Kubernetes, EKS, ECR, Lambda, AWS Fargate, AWS ECS, Apache Tomcat, MySQL, JIRA, Aws Cloud, AWS Cloud Watch, Amazon Kinesis, Amazon Aurora. WePay, Redwood City, CA July 2019 to Aug 2020 Site Reliability Engineer Strong Experience in Maintaining Website stability and Ensure Website Availability 24/7, Expertise in incident/problem handling. Strong understanding of support processes handling tickets, monitoring, processes, and metrics. Experience in understanding complicated application/data issues and worked to fix the problem. Experience in monitoring Jobs as well as performance tuning job abend. Generate & Analyze performance reports using Splunk, Kibana, Graphite/Grafana, Dynatrace that monitors and captures key pain-points in operation of the website and backend processing by analyzing application performance like JVM, Thread Utilization, application load and scheduler jobs that helped to identify and solve site abnormalities. Strong experience in design, development load test script and maintenance of infrastructure for cloud-based web applications. Creating and executing load test scripts and analyzing test results for client and application side metrics and providing recommendation to dev team and improving latency issues. Organizing RCA, BPM (Blameless Postmortem) and KPI meetings. Drive standardization in pager duty alerts by reducing noise and faster MTTR and MTTA responses promised. Enabling enhanced monitoring, dashboarding and engineering the teams for customer success. Involved in Disaster Recovery activity and identified the RTO (interruption of service and restoration of service) and RPO (Acceptable loss of data between the last recovery point and the interruption of service) Resiliency tests are performed on production environments, before go-live to ensure application meets SLA, SLO, SLI needs. Worked on installing OpenShift-logging operator on the cluster to get the logs for application, audit, and infrastructure in Kibana. Experience with working on ArgoCD and GitOps and synch up changes on the respective OpenShift cluster. Worked on installing OADP operator on the OpenShift clusters for backup and restore of the projects and store them in the S3 Bucket. Working on upgrading Kubernetes cluster, commissioning & decommissioning of Nodes, Pods Configured Azure cloud services, Azure Firewalls, Azure IAM (SSO/MFA/RBAC), Azure Active Directory (AD), Azure Resource Manager (ARM), Azure Storage, Blob Storage, Azure VMs, IIS, SQL Database, Azure Functions, Azure Service Fabric, Azure Monitor, and Azure Service Bus et., Implemented Cloud security controls in SecOps including but not limited to Encryption, Tagging, Container Security, Golden AMI policy, IDS/IPS, NSG management, Service Endpoints, DDoS Etc., Configured Azure Security using RBAC, Azure Security Center and Azure Monitor services. Configured Azure Infrastructure Automation using Terraform scripts and launched various services like AKS, ACR, VM, VN..etc Designed Network Security Groups (NSGs) & Load Balancer to control inbound and outbound access to network interfaces (NICs), VMs and subnets. Experience in creating the infrastructure by using the Terraform for various environments. Implemented HA, Reliable deployment models with Azure Classic and Azure Resource Manager. Configured Azure Active Directory and IAM to manage users and groups privileges also user account management (SSO/SAML) and multifactor authentication. Involved in firewall deployment and management in Azure such as Palo Alto, Azure Firewall. Implemented automate build & operational tasks using Python and Power Shell scripts. Implemented Serverless Cloud Services using Azure Functions with application insights. Implemented a CI/CD pipeline using Azure DevOps (VSTS/TFS) in both cloud and on-premises with GIT, MS Build, Docker, Maven along with Jenkins pipeline builds & YAML/JSON. Developed and maintained Continuous Integration (CI) using tools in Azure DevOps (VSTS) spanning multiple environments, enabling teams to safely deploy code in Azure Kubernetes Services (AKS) using YAML scripts and HELM charts. Worked on creating, configuring, and managing AKS clusters in Azure, including managing node pools, configuring networking, and setting up load balancing. Managing the Azure Kubernetes Services (AKS) policies, providing access to different Azure resources and developing and improving the workflows that govern access. Monitoring and troubleshooting Kubernetes clusters using Prometheus and Grafana. Worked Grafana to monitor and visualize system metrics, application performance, and other data sources. Experienced with developing Ansible Playbooks, Modules and Kubernetes Nodes, Pods, Config Maps, Selectors, Services etc., Configured Docker Hub, Engine, Swarm, Compose & Registry and creating Docker images using Docker Files, container snapshots, removing images, mapping and managing Docker volumes and implemented Docker automation solution for CI/CD deployments. Deployed and configured Azure Backups for Virtual Machines and files & folders backups on Windows and Linux operating systems using Recovery Services Vault in Azure Resource Manager. Configured Azure Encryption for Azure Storage and Virtual Machines, Azure Key Vault services to protect and secure the data for cloud applications. Environment: ServiceNow, Prometheus, Grafana, Datadog, PagerDuty, New Relic, AppDynamics, Dynatrace, ELK Stack, Splunk, RCA (Root Cause Analysis) documentation, Performance testing tools (JMeter, Gatling), Load testing tools (Locust, Apache Bench). REI Systems Inc., Sterling, VA May 2017 to June 2019 DevOps Engineer Collaborated with Application and Development teams to examine the existing release process, project dependencies and the frequency of releases and enhanced the process Worked on AWS - EC2, Cloud watch, IAM and Elastic Beanstalk cloud for provisioning and managing infrastructure through automation. Developed the build jobs in Jenkins to poll the SCM to check for changes of source code and performing the builds. Worked on CI/CD tools Jenkins, Git/Bitbucket, Jira and Docker registry/daemon for configuration management and automation using Ansible. Implemented a CI/CD framework using Jenkins, Maven, Git, Nexus Artifactory in Linux environment. Hands on experience with Spinnaker for Continuous Deployment with Kubernetes. And used OpenShift for container orchestration with Kubernetes, Container Storage, automation, to enhance container platform multi-tenancy. Deployed and configured Git repositories with branching, forks, tagging, and notifications. Implemented periodic customer releases through GIT pushes to shared, private and public servers. Installed, configured, and managed OpenShift HA clusters and deployed applications on OpenShift Responsible for containerization efforts and migration of java apps to OpenShift Container Platform. Automated script creation using Jenkins, Java, PowerShell for record management. Composed Java scripts for automating tasks and process for end-to-end automation Responsible for building/deploying consistently repeatable build / deployments to company production and non-production environments using JENKINS. Worked with the development team to generate deployment profiles (jar, war, ear) using Ant Scripts and Jenkins. Used Maven dependency management system to deploy snapshot and release artifacts to Nexus to share artifacts across projects and worked on Nexus to upload/download the build artifacts. Implemented CI/CD Automation Process using CI Tool Jenkins CD Tool Docker. Responsible of installing, updating, diagnosing and troubleshooting the issue tracking and project management application, learning agile methodology by JIRA. Created and configured new JIRA projects and worked with departments to maintain existing JIRA projects. Environments: Maven, Ant, Jenkins, AWS Cloud, Shell, Java, JIRA, Service now, Apache tomcat, VPC, Elastic Beanstalk, Docker, Nginx. AXA Insurance, Syracuse, NY Mar 2015 to April 2017 Linux Administrator Installed, Configurator and Managed RedHat Enterprise Linux 5.x Involved in Installing, configuring, and maintaining application Servers like WebSphere and Web servers like Web Logic, Apache, HTTP and Tomcat on UNIX and Linux. Managed users, groups, and permissions, configured LDAP, given SUDO Access in test and development servers, and allowed password less logins for authorized users on servers. Installed and upgraded packages on Red Hat Linux servers through YUM and RPM tools. Responsible for Oracle database security and patching, Oracle database capacity analysis and planning. Installing Red Hat Linux, using kick-start and applying security policies for hardening the server based on the company policies. Hands-on experience in server builds migrations such as OS migrations, Application migrations, and Storage migrations. Involved in developing dynamic web-based user interfaces using HTML and JavaScript. Installing and configuring SSH (Secure Shell) encryption to access securely on Ubuntu and Red hat Linux. Environment: RedHat Enterprise Linux 5.x, YUM, RPM, Shell, Bash, JavaScript, Firewall, Apache, Tomcat, LDAP, NFS, SAMBA, SSH, DHCP, DNS, Kick start server, TCP/IP, WebSphere, Web Logic, Nagios. Citi Bank, Irving, Texas Feb 2013 to Feb 2015 Linux Administrator Installed, upgraded, and configured Red Hat Enterprise Linux 4/5/6. Configuration and administration of DNS, LDAP, NFS, NIS and NIS+ on Red Hat Linux. Hands on experience working with production servers at multiple data centers. Automated server building using Kick starting RHEL 6 and Jumpstarting Sun Solaris 10. Troubleshooting production servers and configuring standalone production server for testing. Performed Kernel tuning with the systole and installed packages with yum and rpm. Configuration and Administration of Apache Web Server and SSL. Backup management using CRONTAB, running the backup based on client requirements. Password-less setup and agent forwarding done for SSH login using ssh-keygen tool. Established and maintained network users, user environment, directories, and security. Environment: CentOS, Fedora (beta), Ubuntu Server, Debian SID, VM ware ESX, Veritas File System, Veritas Volume Manager, and Veritas Cluster Server. Keywords: cprogramm cplusplus continuous integration continuous deployment javascript sthree database active directory information technology golang microsoft California New York Pennsylvania Virginia