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Linux System Engineer Resume

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SUMMARY:

  • As a Linux Engineer, my objective is to strengtan teh company’s applications and system features, develop scripts and codes, and configure servers and maintain networks to reinforce teh company’s technical performance. Part of dis objective is to ensure dat Linux environment is performing at its optimum level, manage system backups, providing infrastructure support, working alongside teammates and other teams.
  • To be able to fulfill dis, me will utilize teh knowledge and expertise me has gained in my seven plus years’ experience as Linux Administrator and engineer - such as administrating, scripting, automating, and testing systems. me can achieve objectives and tasks at hand in an efficient and timely manner.

TECHNICAL SKILLS:

OS: Linux/UNIX, RHEL, CentOS, Windows

DevOps: Ansible, AWS, Git & GitHub, Nagios, Dynatrace, Jenkins, Docker, Kubernetes

Virtualization Tools: VMWare, V-Motion, vSphere, vCenter, Oracle

Languages: Java, JavaScript, PHP, Bash, Python, YAML

Automation Tools: Ansible, Bash Scripting, PXE Boot with Kickstart

Patching Tools: Red Hat Satellite, Ansible

Servers: PXE, DHCP, Apache, DNS, SAMBA, NFS, SMTP, EC2, Ansible, GIT, Red Hat Satellite 6

Storage: Logical Volume Management (LVM), RAID Levels, S3, GlusterFS/FUSE, NFS-Ganesha

System Monitoring: Nagios, CLI, Splunk, CheckMK

Hardware Management: Rack & Stack, Cisco UCS Blades, Server Build, ILO, IDRAC, Raid, Switches & Routers

Backup Tools: Tar-Ball, Veritas NetBackup, Snapshot, Disaster Recovery, S3

PROFESSIONAL EXPERIENCE:

Linux System Engineer

Confidential

Responsibilities:

  • Administration of RHEL and CentOS, which includes installation, configuration, testing and troubleshooting both physical and virtual servers.
  • Responsible for teh full life cycle of teh servers from installation to decommission.
  • Building, patching, and maintaining Linux systems in a mission critical environment using Red Hat Satellite.
  • Worked on incident management, change request, and service request.
  • Maintained Unix servers with legacy applications.
  • Utilized Git and GitHub for version control with scripts and playbooks.
  • Used Git as version control.
  • Used Ansible for provisioning, deployment, and orchestration.
  • Made Ansible Playbooks to install, maintain, and patch servers and for other necessary tasks.
  • Setup SSH-Keyless entry for Ansible hosts.
  • Ran Ansible Ad-hoc commands for operations.
  • Utilized Ansible Tower to schedule and run jobs.
  • Used Ansible Towers' visual dashboard for inventory management.
  • Responsible for user management includes creating, modifying, and locking accounts.
  • Set password and expiration policies on teh systems.
  • Perform RPM & YUM package installations.
  • Upgrading and Updating servers and packages.
  • Managed & Configured RAID Levels.
  • Disk management; Adding extra hard drives, partitioning, and creating file systems.
  • Configure and manage LVM and create file systems.
  • Resolving networking issues from network being down to servers being sluggish.
  • Monitoring teh health and logs of teh infrastructure using Splunk.
  • Utilized netstat and vmstat for performance monitoring, identifying and resolving issues.
  • Configured SSH and SSH-Keyless based autantication.
  • Installation of ESXi servers and creating different guest OS’s and managed using V-center.
  • Configured NFS for file sharing on teh Linux System.
  • Configured SAMBA servers to provide access of Linux Home Directories on teh Windows Platform.
  • Worked on AWS IAM to manage users and groups and use permissions to allow/deny their access to AWS resources such as EC2, VPC, S3.
  • Well versed in spinning up of instances as needed.
  • Monitored EC2 instances, disk space and CPU utilization.
  • Exposed to Docker Containers.
  • General knowledge of Docker Containers with K8 Clustering.
  • Worked with multiple teams such as Patching, Break & Fix, Decommissioning Teams.
  • Provided support to dev-ops team.
  • Worked on incident management, change requests, and service requests.

Linux System Administrator

Confidential

Responsibilities:

  • Installed, configured, maintained, and upgraded RHEL and CentOS using PXE with Kickstart
  • Provided systems administrative support for end users and servers under Risk and Incident management
  • Responsible for day-to-day system maintenance of Linux/UNIX machines via monitoring, working along internal clients/users
  • Patching and updating servers and packages using Ansible and Red Hat Satellite
  • Allocating, monitoring and planning of disk space
  • Configured Logical Volumes on file systems to manage and withheld capacity utilization within a threshold of file system usage
  • Disaster recovery planning and implementation, participating annually DR exercises with teh App/DB admins to ensure and validate DR infrastructure
  • Creating TarBall of files for teh purpose of migration or file system space capacity justification
  • Assigning IP Addresses, Gateways, Netmask and Hostnames for servers
  • Monitoring system logs, activities and autantication cases to assess and gather information for troubleshooting user login issues across teh platform of Red Hat Enterprise Linux servers
  • Built and configured Virtual machines using VMware virtualization platform, hypervisor ESXi hosting on bare metal servers
  • Creating Crontab to automate administrative tasks, running DIY scripts at a desired schedule
  • Wrote Bash Scripts for teh purpose of automation and to achieve a DIY structure of performing bash shell administration
  • Used Git to manage scripts and other codes/configuration files
  • Used Ansible to SSH into multiple servers for support and maintenance
  • Created Ansible playbooks and ran Ad-Hoc commands as needed
  • Diagnosed and troubleshoot network related issues
  • Worked with TCP/IP configurations
  • Monitoring performance analysis using SAR, IOstat, vmstat, and netstat
  • Created CRQ's for any needed changes on systems

Linux Systems Operator

Confidential

Responsibilities:

  • Install Linux OS on bare metal servers.
  • Racking & Stacking of Dell and HP servers at Data centers
  • Design, Installation, and configuration of new vSphere and ESXi servers on Rack Servers.
  • Setting up IDRAC and ILO on newly racked servers
  • Troubleshoot network connectivity and performance problems in a Linux environment.
  • Problem determination and resolution.
  • Ensure network connectivity of all servers, SAN’s, workstations, IP telephone equipment, business partner VPN connectivity and other network appliances.
  • Data Center inventory management.
  • Knowledgeable in Data Center standards, procedures and practices.
  • Rebooting servers and checking health daily.

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