Name: Usman Muhammad
Phone number: 609-***-****
Self-starter, motivated individual with several years of experience in Linux/Unix system administration/engineering, seeking a position where I can challenge my technical skills and utilize my expertise within the areas to address and solve the company’s technical needs. Experience in collaborating in a team environment and accomplishing company goals set by senior management and in dealing with high level tasks.
RHEL, CentOS, Ubuntu, FreeBSD, Kernel Tuning, Yum Repository, RPM, VIM, Ext3, Ext4, XFS, User/Group Administration, Security, Linux, Scripting (Bash, Shell), Ansible, AWS, DNS, DHCP, SNMP, NIS Client/Server, NFS, Apache, Httpd, SSH, PSSH, Telnet, SCP, Rsync, Wireshark, Tcpdump, NIC Bonding, Networking, Process Management, PXE Boot and Kickstart, Thick/Thin Provisioning, DevOps, Server Deployment, RDP, Splunk, eVNC, microservices, Docker Containers, Kubernetes, Jenkins, Virtualization, ESXI, vSphere, vCenter, Clusters, HA, DRS, LDAP, Network Adapters, Switches, Disk Management, System Performance, LVM, RAID, Nimble Storage, Jira, Nagios, Netbackup, SSSD, Datagather, Appformix, AWX Ansible, Ansible Tower, RedHat Satellite, BladeLogic, AWS, EC2, S3, IAM, Vulnerability Management, RAID Levels, Crontab, ILO, IDRAC, IPMI, IPTables, Firewalld, ServiceNow (SNOW), Tar, Gzip.
Juniper Networks Date: Jan 2020 - Sept 2020
Linux Systems Admin/Engineer Location: Sunnyvale, CA
●Administration of production server infrastructure consisting of 3000+ servers. Both physical and virtualized servers running VMware ESXi.
●Installing, configuring, upgrading and remediating of RHEL 6.x, 7.x Ubuntu 12.4.x, 16.4.x operating systems. which supported overall infrastructure and services such as (SSSD, NFS,PXE boot, Kickstart File Servers, Automount, DNS, DHCP, Netbackup).
●Monitored the systems CPU, memory, SCSI disks, RAID, and network parameters using in house and conventional tools sar, iostat, vmstat, mpstat as well as Nagios.
●Working with different storage containers—creating RAID levels (0, 1, 5, 6, 10) to achieve redundancy and performance.
●Setting up and maintaining NFS master server and client.
●Responsible for the Logical Volume Manager (LVM) Creating New File system and /or Extending the file system.
●Integration of various different services with SNOW (Service Now).
●Writing bash scripts to automate daily tasks.
●Performed 24x7 on call duties on a rotation basis with the other system engineers as part of incident management.
●Project lead for provisioning 200+ servers successfully in a single week.
●Responsible for scheduling required maintenance and break/fix on physical hosts.
●Working closely with the developers and engineers to create and maintain the CICD pipeline with jenkins.
●Writing Ansible playbooks as well as running prewritten playbooks, working with AWX (GUI) dashboard.
●Migrated VMWARE VMs to AWS and Managed Services like EC2, S3 Bucket, Auto Scaling, ELB, EBS etc.
●Created EC2 instances with various AMI's and Configured Application Servers on the instances.
●Granting security and Configured user access and limits using AWS Identity and Access Management (IAM).
●Configured Auto-Scaling group to spin up more instances on heavy load.
●Created and configured AWS EC2 instances using pre-configured templates such as AMI, RHEL, Centos, Ubuntu as well as used corporate based VM images which includes complete packages to run build and test in those EC2 Instances.
●Experience in creating and attaching Volumes from AWS storage to the EC2 instances.
●Building/Maintaining Docker container clusters managed by Kubernetes.
●Using Github for version control.
●Documented server baseline and procedure.
Verizon Wireless Date: March 2018 - Dec 2019
Linux Systems Admin/Engineer Location: Warren, NJ
●Deployed new Linux servers on AWS native AMIs and customized AMIs for launch configurations.
●Working with different file systems such as Ext3, Ext4 and XFS, partitioning using fdisk, parted to create different partitions, creating and fixing file systems.
●Integration of Service Now with LDAP for authentication.
●Updated vSphere version from 5.5 to 6.0 using VMware Update Manager.
●Adding more resources like Memory, Disks and increasing the Swap.
●Worked on virtual and physical Linux hosts and was involved in day to day administrative activities such as maintaining user accounts, password management, providing advance file permissions to specific users, etc.
●Performed Monthly Red Hat Servers patching and installed packages through RHN (Red Hat Satellite).
●Configured and maintained Virtual Private Clouds (VPCs).
●Created and managed Elastic Block Storage(EBS) and S3 buckets.
●Deployed AWS resources using Manage Console and AWS CLI.
●Granted permission and implemented versioning on S3 buckets.
●Created Snapshots and Amazon Machine Images(AMI's) of EC2 Instances for snapshots and creating cloned instances.
Bank of America Date: June 2016 - Feb 2018
Linux Systems Admin Location: Charlotte, NC
●Configuring and managing NFS, SYSLOG, DNS, NIS, SUDO, SSH, on RHEL servers.
●Responsible for provisioning, configuration, security, and maintenance of Red Hat Linux servers according to the company compliance management.
●Creating/modifying host-based firewall rules using IPTABLES.
●Issues related to login, performance, virus removal, adding machines to domains, granting proper permissions and applying domain group policies domain wide.
●Managed system routine backups, scheduled jobs, enabled cron jobs, and enabled system logging of servers.
●Added servers to domain and managed the groups and users in LDAP.
●Experience in writing scripts in bash for performing automation of various repeatable tasks.
●Responsible for Patch installation, upgrades and packages installation on RHEL 6 by using RPM and YUM.
Yahoo! Date: August 2014 - April 2016
Linux Jr systems Admin Location: Lock port, NY
●Installed and managed all Linux servers per customers' specifications.
●Troubleshoot and fixed TCP/IP network issues on user workstations.
●Worked on creating and removing files and directories in Linux servers.
●Support virtual machine configuration (creation, maintaining and implementing) through VMware.
●Create and manage user accounts thereby enforcing account policy (password rigidity, system security).
●Perform Linux Host security administration such as back-ups and recovery. These include system upgrades, integrating new applications administering and managing Red Hat enterprise packages.
●Assigning file system utilities using the "umask", "chown", "chgrp" and "chmod" permissions.
●Managed several packages on RHEL 5 using yum and rpm.
Miracle technologies Inc Date: Sept 2013 - July 2014 Tech Support Analyst Location: Manhattan, NY
●Memory Module, Expansion Card, Motherboard installation and configuration.
●Recommended, scheduled, and performed PC, hardware and peripheral equipment improvements, upgrades and repairs.
●Resolved clients' issues in MS Word, Excel, PC Docs and PC Anywhere including PC maintenance.
●Remote system Administration using SSH and Telnet.
●Wrote effective technical documents and reports for existing processes.
●Participating in business resumption and technical outage briefings.
●Prepared status reports and regular presentations to management.
●Occasionally performed application testing and debugging.
RedHat Linux 6 and 7 Administration.