Kranthi Kumar Email & Phone Number

Atlanta, Ga, Us

Atlanta, Georgia, United States

Administered Red Hat (6.x, 7.x, 8.x) and Windows Server (2008/2012/2016/2019), ensuring stability and security across multiple data centers.Managed package installations, patch updates, and upgrades on RHEL using RPM and YUM for efficient system maintenance.Developed Shell and Perl scripts to automate tasks, streamlining operational workflows and enhancing efficiency.Installed and configured Apache web servers and provided production support, ensuring high availability for critical applications.Troubleshot network and security issues using IPtables, firewalls, and NMAP, enhancing system security.Monitored performance of Linux, Solaris, and Oracle/Postgres databases, optimizing resource utilization.Oversaw VMware virtual machines for various Linux distributions, maintaining an efficient virtual infrastructure.Automated system management tasks with Ansible, managing configurations, users, and packages seamlessly.Gained expertise in cloud management, configuring AWS instances and utilizing CloudFormation for infrastructure provisioning.Developed CRON job scripts for automating routine maintenance tasks, ensuring systems remain optimized and up-to-date.

Manhattan, New York, United States

Linux System Administrator | Cloud Services & Automation ExpertDynamic and results-oriented Linux System Administrator with extensive experience in managing over 1,000 servers running Red Hat Linux and AIX. Proven track record in optimizing system performance, ensuring stability, and automating configurations across diverse environments.Key Achievements:Managed maintenance and support of 1,000+ Linux servers, ensuring high availability and system stability.Established networking services on Unix and Windows Active Directory, implementing protocols such as NFS and DNS.Conducted comprehensive system monitoring and log reviews, proactively identifying and addressing performance and security issues.Developed and maintained Ansible playbooks and Puppet modules to automate server configuration and streamline management tasks.Executed Kickstart installations, Linux kernel upgrades, and system performance tuning to enhance resource utilization.Implemented robust data backup and recovery solutions, ensuring data integrity and availability across environments.Skilled in P2V and V2V migrations using VMware Converter, successfully transitioning virtual machines between platforms.Proficient in managing cloud services with AWS and Microsoft Azure, leveraging the Atlassian suite for project management.

Baltimore, Maryland, United States

Linux/Unix System Administrator | Cloud Infrastructure & Automation SpecialistExperienced in managing diverse enterprise infrastructure across Linux, Solaris, and Windows environments, with expertise in cloud-based systems and automation. Skilled in delivering high-performing, scalable solutions for critical business applications.Key Achievements:Managed deployments on Red Hat, Ubuntu, CentOS, and Rocky Linux for large-scale systems, supporting both physical and virtual environments.Provided VMware and Linux system support, optimized resource utilization, and conducted capacity planning for R&D teams.Performed kernel memory upgrades, Kickstart installations, and managed Apache/Tomcat, MySQL, and firewall servers in production and development environments.Integrated Red Hat with Jenkins, GitLab, and Kubernetes for automated CI/CD pipelines and container management.Migrated HACMP clusters and maintained AIX systems, ensuring smooth network and protocol configuration.Deployed applications on AWS using Lambda, Jenkins, and CI/CD pipelines, enhancing development efficiency.Expert in using Selenium for robust software testing and log centralization with Syslog-ng.

Pittsburgh, Pennsylvania, United States

Linux/Unix Systems Administrator | High-Performance Computing SpecialistOver a decade of expertise in Linux/Unix system administration, virtualization, and enterprise-level infrastructure management. Delivered robust solutions for mission-critical environments, with experience spanning Red Hat Linux (versions 5–8), Sun Solaris, SUSE Linux, and AIX. Proven track record of integrating Linux with Active Directory for Single Sign-On and spearheading HPC support as Site Lead.Major Achievements:Led infrastructure deployments using Terraform and Ansible, optimizing configuration management across environments.Implemented Red Hat Satellite Server to enhance security and streamline Linux systems management.Drove system upgrades and software management with VMware Update Manager; collaborated with scientific and HPC engineering teams to ensure operational excellence.Provided primary technical support for high-availability Unix/Java-based applications and managed middleware installation, including WebSphere, JBoss, and Apache Tomcat.Delivered seamless integration of Linux with Active Directory for unified Single Sign-On access.Ensured secure and efficient network performance, providing support for over 2,500 VPN users while monitoring systems with Nagios and BMC Patrol Express.Orchestrated server consolidation and virtualization using VMware infrastructure, including VMware ESX and Virtual SMP.Developed custom shell scripts for automation and system tasks, ensuring peak performance and reliability.