Summary
Overview
Work History
Education
Skills
Timeline
Generic
Maira Khan

Maira Khan

Longwood,FL

Summary

Highly motivated, reliable and analytical Linux DevOps Engineer with over six years of experience in a production environment of servers, storage, operating systems, performing maintenance, support, troubleshooting, administration, and management. Experience of Linux administration not limited to, file system maintenance, user maintenance, storage and performance maintenance, networking. Worked in a hybrid environment where was exposed to various DevOps tools including Ansible, GIT, Containers ( Kubernetes, Docker). Detail-oriented team player with strong documentation and organizational skills. Ability to handle multiple projects simultaneously with a high degree of accuracy.

Overview

7
7
years of professional experience

Work History

Linux DevOps Engineer

Gensler
New York, NY
01.2022 - Current
  • Automate server builds using configuration management, operating system migration, and integration of monitoring tools and metrics.
  • Upgraded, migrated, decommissioned servers from old Hardware to New Architecture.
  • Installation, configuration, administration of Ubuntu 18.04, 20.04 using VMware Templates, custom configuration like package management, volume management of servers.
  • Extensive experience in monitoring, automating, deploying as well as troubleshooting in a Build/ Release Environment.
  • Experience in Performance monitoring, usage and load of the system, changing kernel parameters for better performance, loading and unloading kernel modules.
  • Provided independent technical reviews of operational procedures and plans to eliminate functional bottlenecks.
  • Exposure to Ansible including creating playbooks, running Ad-hoc commands, creating host inventories.
  • Experienced in automating large-scale deployments with modern configuration and deployment management systems with Ansible.
  • Managing Access Administration, restricting and securing unauthorized access to the hosts and granting privileged access to the user accounts.
  • Hardened operating systems using iptables and filesystem ACLs (Setfacl).
  • Monitored the performance of the system using top, vmstat, netstat, iostat, and cpuinfo to check the CPU utilization, bottlenecks of I/O devices, memory usage and network traffic.
  • Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, UAT/ Staging.
  • Patching of servers to prevent attacks and hacking and also generating SSH authenticating keys to secure the environment.
  • Performed AWS S3 buckets creation, policies and also on the IAM role-based policies.
  • Co-ordinate with DevOps engineers to build Docker containers, moving monolithic apps to microservices, enhancing developer workflow, increasing scalability.
  • Experience managing Docker repository, files/ compose, images and running containers.
  • Migrated various Front end applications to Kubernetes as part of a larger infrastructure Migrations using Visual Studio code.
  • Co-ordinate with front end developers and QA to verify Kubernetes Containerization efforts.
  • Utilized various backup tools such as LVM snapshots, VMware snapshots, and tar/ gzip archive tools.
  • Experienced in branching, tagging and maintaining the versions across the environments using version control tools like GIT and managed Git Hub.
  • Implemented performance capabilities and experience in load balancing and monitoring with Ngnixlb and Solarwinds.
  • Prepared various Disaster recovery strategies by mimicking production environment via Zerto.

Linux System Administrator

PNC Bank
Philadelphia, PA
04.2021 - 01.2022
  • Extensive experience installation, configuration, administration, troubleshooting, tuning, backup and maintenance of RHEL, CentOS and Ubuntu servers
  • Supporting the OS throughout its life cycle from provisioning, configuring to its end life (decommissioning).
  • Installed and configured virtual machines on VMware ESXi servers.
  • End to end automating the build process with the help of PXE, Kickstart and maintaining the build process for optimal output.
  • Experienced in using RedHat Satellite to deploy, configure and monitor our systems across physical, virtual and cloud environments.
  • Automated configuration management and deployments using Ansible playbooks.
  • Configured and manage Ansible Control Node and Ansible Tower as a configuration management tool to automate tasks.
  • Create Ansible Roles to migrate applications to different host machines.
  • Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
  • Implementing SUDO utility throughout the production environment to avoid root access.
  • Creating and pushing SSH keys to configure password-less SSH for security and automation purposes.
  • Experience in transferring files across networks using protocols like SCP, SFTP and FTP.
  • Performed common system administration tasks including but not limited to - adding users, configuring volumes, creating filesystems, configuring various system services and monitoring system health.
  • Worked on Security/ Authorizations of created users with limited and full root privileges.
  • Created and maintained system documentation including logs, images, and written reports.
  • Configure ILO and IDRAC on HP and Dell servers for remote console access, firmware upgrades and troubleshoot hardware failures.
  • Control network connections to services using the system firewall and SELinux rules and monitor network traffic using tcpdump and used Tcp/ Udp protocol.
  • Configure NIC-bonding/ channel-bonding on new builds for fault-tolerance, load-balance, and redundancy.
  • Provide direct user support for level 2 and level 3 issues via email and ticket system.
  • Built and managed a highly available monitoring infrastructure to monitor different application servers, and its components using Nagios.
  • Created and edited Standard Operating Procedures (SOP) and documented various performed tasks.
  • Got better understanding of the strategy and practical implementation on AWS cloud-specific technologies including Elastic Compute Cloud (EC2), Simple Storage Services (S3), Virtual Private Cloud (VPC), RDS, IAM, & Elastic Load Balance (ELB).
  • Experience with container-based deployments using Docker, working with Docker images, Docker Hub and Docker registries.
  • Worked with Docker and Kubernetes on multiple cloud providers, with the help of developers built and containerize their application to deploying either on public or private cloud.
  • Used GIT for managing playbooks, scripts, Docker files/images and application configurations files.
  • Managed GitHub repositories and permissions, including branching and tagging.

Linux System Administrator

Bloomberg
New York, NY
09.2017 - 04.2021
  • Installed, configured, and updated Linux machines, with Red Hat, CentOS.
  • Experienced in provisioning and managing virtual machines using VMware, VMware vSphere Client, and Vcenter.
  • Providing support to systems such as Linux operating system installation, upgrades, patching, tuning, troubleshooting, monitoring and decommissioning.
  • Installation and upgrades by using RPM and YUM.
  • Connecting local and remote servers using the SSH service on a daily basis.
  • Developed Ansible playbooks to automate day to day tasks and procedures such as deployments, patching and system health checks.
  • Monitored syslog and reported the errors and sought out solutions.
  • Backed up important files using tar, zip, gzip and other compressing utilities.
  • Conducted system backups according to company’s standards.
  • Performed hardware level activity including investigation, maintenance and repair of server, network components and data cabling.
  • Created users, manage user permissions, maintain User & File System quota on Red Hat Linux.
  • Documented high severity troubleshooting tickets to help benefit me and my team on future instances.

Linux Operations Analyst

Samsung
, New Jersey
01.2016 - 08.2017
  • Worked with engineers and technical staff to recommend hardware and software adjustments and resolve design flaws.
  • Designed plans to improve operations and suggested changes to systems for overall organization.
  • Created and managed operational databases to store and track data and maintain accurate information.
  • Prepared the Documentation for Installation & Configuration of OS servers.
  • Schedules and perform VMware installations, patching and upgrades and maintains them in accordance with established client’s SLA and procedures.
  • Providing after hours On-Call support.
  • Diagnosed server performance issues, such as CPU, Memory, Storage and Network bottlenecks Using tools such as top,iostat, netstat, and tcpdump.
  • Assessed operational performance to identify areas for improvement.
  • Followed SLA Protocols for incident and ticket management to resolve issues in a timely manner.

Education

Kingsborough Community College of The City University of New York
Brooklyn, NY

High School Diploma -

Abraham Lincoln High School
Brooklyn, NY
2013

Skills

  • RHEL/ CentOS / Ubunutu
  • VMware, vSphere, Oracle Virtual box, ESXi 5x, 6x, Vmotion, Clusters, Snapshots, Clone, Datastore
  • SAN, NAS, NFS, LVM, LAN, VLAN, WAN
  • EC2, S3, IAM, Cloud Watch, VPC, RSD, ELB
  • System Tuning, Kernel Tuning, Hardware Tuning
  • Ansible, GitHub, GitLab, Docker, Kubernetes, Terraform, Cloudflare, Microsoft Azure
  • YUM, RPM, REPOS, ESXI, LVM, NIC-Bonding, File System (EXT3, EXT4, XFS), RAID, Nagios, NGINXLB, Solarwinds, AWS, PXE, KICK-START, DHCP, DNS, NFS, MySQL, SAMBA, FTP, TFTP, SSH, HTTPD, APACHE

Timeline

Linux DevOps Engineer

Gensler
01.2022 - Current

Linux System Administrator

PNC Bank
04.2021 - 01.2022

Linux System Administrator

Bloomberg
09.2017 - 04.2021

Linux Operations Analyst

Samsung
01.2016 - 08.2017

Kingsborough Community College of The City University of New York

High School Diploma -

Abraham Lincoln High School
Maira Khan