Afshan Munawar

About Afshan Munawar

Well Rounded Linux Systems Engineer with engineering abilities crafted over 7+ years of…

Experience

1. Linux Devops Engineer

   AT&T

   Jun 2024 — Present · Woodbridge, VA, US

   Designed, deployed, configured, and supported virtualization platforms, primarily VMware vSphere/ESXi. Created and maintained virtual machines (RHEL/CentOS), performed capacity planning, and executed lifecycle management of virtual servers. Worked extensively with KVM (Kernel-based Virtual Machine), enabling full virtualization on RHEL platforms with snapshot management and performance tuning. Provided end-to-end deployment, administration, and troubleshooting of Linux-based production and development servers, ensuring optimal uptime and performance. Delivered operational support for mission-critical environments with a focus on stability, scalability, and security. Configured and managed core Linux services including DNS, NTP, HTTP/HTTPS, FTP,TFTP, DHCP, and SAMBA across various distributions. Administered logical volume management (LVM), disk partitioning, and filesystem optimization to enhance storage efficiency. Performed automated patching and system upgrades using Ansible Tower and Red Hat Satellite servers, improving security compliance and system consistency. Created reusable Ansible playbooks for application deployments, configuration enforcement, and system patching. Utilized Ad-hoc commands for rapid administrative interventions across fleets of servers. Monitored system performance including CPU, memory, disk, and network usage using tools like Nagios, top, iostat, vmstat, netstat. Proactively resolved issues related to performance bottlenecks, disk failures, network latency, and resource overutilization. Enhanced server security posture through regular updates, patching, and vulnerability remediation using local and satellite repositories. Implemented secure SSH configurations, firewall rules (iptables/firewalld), SELinux policies, and audited logs for compliance. Managed Docker containers, including building, pulling images, running, stopping, and lifecycle operations.

Education

• Lahore Leads University -City Campus

  Master's degree