KARAN VIRMANI

Experience

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  Navisite

  Jul 2017 - Sept 2020

  • Effectively troubleshooted performance and load-related issues, deploying Ansible to manage multiple servers for patching, installation, and networking, resulting in improved system stability and reduced downtime by 50%.• Demonstrated proficiency in protocols (SSH, SFTP, HTTP, HTTPS).• Efficiently handled disk management using fdisk, LVM, and NFS, enhancing storage utilization and improving data access performance.• Coordinated Business as Usual (BAU) tasks, delivering L2 support to global customers, ensuring prompt issue resolution, and maintaining compliance with service level agreements (SLA).• Oversaw DNS and Mail server management, implementing robust security measures and ensuring uninterrupted email communication within the infrastructure.• Utilized hands-on experience in storage management (INFINIDAT, Netapp) and expertly configured multipathing, resulting in improved data availability and enhanced storage performance.• Orchestrated VMware server setups (VSphere 6, 6.5, 6.7, and 7.0) in hybrid cloud environments, enabling seamless management of Linux and Windows virtual machines, optimizing resource allocation, and facilitating efficient workload management.• Successfully managed V-center servers, performing upgrades and ensuring the availability of the latest features and enhancements, contributing to a secure and up-to-date infrastructure.• Implemented disaster recovery setups, minimizing data loss and reducing recovery time in the event of system failures, ensuring business continuity and minimizing operational disruptions.• Conducted Root Cause Analysis (RCA) for production environments, identifying underlying issues, implementing preventive measures, and improving system stability to minimize future incidents and enhance overall reliability. Show less

  • Linux System Administrator

    Jan 2018 - Sept 2020

  • Graduate Engineering Trainee

    Jul 2017 - Jan 2018
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  Rackspace Technology

  Sept 2020 - Jan 2021

  Linux Engineer - II

  • · Led end-to-end CI/CD process, optimizing software delivery using GIT, Nexus, Jenkins, and Maven. Orchestrated Docker image creation and deployment in Azure AKS clusters , reducing deployment time by 30%. Enhanced team productivity, accelerating time-to-market.• Implemented and fine-tuned secure Azure Virtual Networks, subnets, and network settings, ensuring robust infrastructure. Collaborated on establishing IPSEC VPN connections and BGP routes, strengthening Azure data security by 25% and safeguarding customer information.• Demonstrated advanced proficiency in Kubernetes administration, overseeing setup and seamless deployment of microservices in production. Designed scalable Microservices architecture, leveraging Ingress rules and Nginx Ingress Controllers.• Led cross-functional troubleshooting calls, resolving critical production issues. Produced comprehensive Root Cause Analysis (RCA) reports, reducing incident resolution time by 35% and ensuring customer satisfaction.• Proactively managed Linux server infrastructure, addressing alerts, disk management, and network troubleshooting. Contributed to capacity planning, and optimizing resource allocation. Achieved 20% improvement in server uptime and reduced operational costs by 15%. Show less

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  Thales

  Jan 2021 - Dec 2022

  DevOps Expert

  • Deployed production-grade applications on AWS SAAS infrastructure, utilizing GIT , Docker , Kubernetes , AWS EKS clusters, and Ansible.• Increased operational efficiency by 30% through reliable and scalable deployments.• Implemented CI/CD pipelines using Jenkins, Maven, Ant, and Gradle, reducing deployment time by 40% and increasing development team productivity by 25%.• Orchestrated containerization and automation using Docker and Ansible, optimizing system efficiency and maintainability.• Designed and developed distributed private cloud solutions on CoreOS using Kubernetes and Docker, optimizing resource utilization and scalability.• Established Continuous Delivery environments, employing Docker, continuous build tools, and delivery mechanisms, resulting in a 30% reduction in time-to-market and a 50% increase in release frequency.• Developed and maintained GIT hooks for seamless code commits and pushes, ensuring version control best practices.• Created custom Shell scripts to streamline Splunk deployments, reducing deployment time and configuration overhead. Show less

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  CIBC

  May 2024 - Aug 2024

  DevOps Engineer
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  Thales

  Oct 2024 - now

  DevOps Engineer