SUMMARY

• Linux Admin/ Engineer with 4 years of hands - on experience with RHEL 5,6, and 7 systems.
• Experience working on physical, virtual and cloud environments. Very passionate about automation and have exposure to Ansible as well as bash scripting.
• Highly motivated and a fast learner, capable of working in a high paced environment.
• Provided operational maintenance and administration in response to support requests, incidents and changes on a daily basis. Enthusiastic about new emerging technologies and continuing to expand my skill set.

TECHNICAL SKILLS

• Linux | Red Hat | CentOS | NFS | NIS | Apache HTTP/S |YUM |RPM
• Auto fs | FTP | TFTP | DHCP | LVM | AWS | EC2 | ELB | EBS | S3 | IAM
• CloudWatch | VMWare ESXi | VSphere Client | Nagios | SCP | Rsync | Putty
• Ansible | GitHub | PXE-Boot with Kickstart | Cron| Docker |SSH |

PROFESSIONAL EXPERIENCE

Confidential, AZ

Linux Systems Administrator

Responsibilities:

• Worked on installation, configuration and maintenance of RHEL 5/6/7, and CentOS Servers.
• Deployed servers using PXE-Boot with customized kickstart files.
• Effectively deployed application installations, upgrades and security updates running on Linux.
• Implemented quarterly patching RHEL 6,7 Linux systems via Ansible playbook.
• Successfully deployed applications across Development, Quality Assurance and Production environments.
• Enhanced and created bash scripts and Ansible playbooks to automate processes.
• Installed and provisioned virtual machines with Linux distributions across different regions using PXE-boot and automated profiles with kickstart.
• Diagnosed and troubleshoot Linux processing problems and applied solutions.
• Worked with Ansible playbooks for virtual and physical instance provisioning, configuration management, patching and software deployment.
• Implemented scheduled downtime for non-prod servers for optimizing AWS pricing.
• Worked on Installation/Configuration/Administration of VMware ESXI 5.1 5.5 & 6.0.
• Configured NFS, NIS, DHCP, HTTPD, & FTP on Linux servers.
• Automated day-to-day tasks using bash scripting, cron jobs and Ansible playbooks.
• Installed, Configured & managed VMware High Availability and Distributed Resource Scheduler to ease system activity.
• Installed, configured, maintained and supported Red Hat Linux 5-6-7/CentOS 5-6-7 servers.
• Implemented skills to upgrade Virtual Machines, ESXI hosts and VCenter servers.
• Effectively decommissioned physical and virtual servers that were no longer in use.
• Worked with vendors support via email and phone to resolve crucial production cases.
• Provided 24 hour availability for Production issues and maintenance schedule for patching and migration.
• Proficiently managed and deployed bash/shell scripts for backups and scheduling tasks.
• Created logical volumes, extending the file systems using LVM for file ease.
• Responsible for most Package Management processes on all Servers (online/ offline).
• Monitored all system activities including CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Documented processes, best practices and troubleshooting procedures.
• Effectively ensured File System Management, Monitoring OS, and Network Activities.
• Created Users, Groups, Profiles, and implemented security policies using Ansible playbooks.
• Configured servers with Raid 0,1,5,6 levels for redundancy and fault tolerance purposes.
• Performed installations and provided various Linux Distributions such as Red Hat, CentOS and Ubuntu on virtual platforms.
• Patched servers to latest fixes and enhanced security features using Red Hat Satellite.
• Hands on experience in creating local FTP and HTTP yum repositories.
• Created and managed user/local service accounts and assisted with password resets and locked accounts.
• Experienced mounting and unmounting various filesystems.
• Extensive knowledge of Linux file systems ext3, ext4, xfs.
• Productively applied integrity checks and monitored system health using command line utilities such as SAR, IOSTAT, VMSTAT, TOP, and FREE commands.
• Extensive knowledge of Linux run-levels in RHEL 6 and RHEL 7.
• Built File Transfer Protocol (FTP) for transferring files to client machines over the network.
• Monitored systems health using Nagios.
• Created and mounted NFS shares on client machines for accessing data.
• Extensive knowledge of implementing LVM on filesystems.
• Utilized SCP, FTP for file sharing over a network to client machines.
• Provisioned RHEL 5, 6, and 7 on bare metal and VM’s.
• Configured raid levels according to the environment’s requirement.
• Installed and configured VMware ESXI 5-6.
• Experience creating and monitoring NTP, NFS, NIS and DHCP servers.

Confidential, NJ

Junior Linux systems Administrator

Responsibilities:

• Installing, configuring and updating RedHat and CentOS servers.
• Worked on user administration setup and maintaining account.
• Monitoring system activities like CPU, Memory, Disk and Swap space usage.
• Upgrading packages and patching systems to maintain the production environment.
• Resolving issues ranging from desktop not booting up to server being sluggish.
• Performing NIC bonding on RedHat systems for load balancing.
• Experience in system performance tuning configuration.
• Worked with different vendors to order systems parts.
• Monitored the health of systems.
• Resolved DHCP scope issues when clients on a particular LAN weren’t able to obtain IP.
• Perform RHEL administration including installations, maintenance, monitoring, patching etc. to meet requirements in production, staging and test environment.
• Experience on Linux kernel, memory upgrades, and swap area.
• Creating permissions for the file and directories and troubleshooting network and firewalls.
• Installations and upgrading the systems with the new package updates with RPM and YUM.
• Performance troubleshooting with tools TOP, VMSTAT, IOSTAT and PS.
• Installed configured and support LAMP on virtual machines.
• Installation and configuration of Linux for new build environment.
• Building ESXI servers, adding them to VCenter and moving machines with VMotion.
• Virtual Machine administration on Hypervisor ESXi.
• Server Hardware support like Dell Power Edge and HP Proliant.
• Adding disks and creating slices and file system administration.
• Configuring Logical Volume Management.
• NFS configuration & administration.
• Monitoring & troubleshooting with performance related issues.
• Ticket assessment on daily basis.
• Swap space management.
• Job scheduling and automating process using CRON & AT.
• RAID configuration.
• Installation of patches and packages.
• Configuring and managing network interfaces.
• Basic creation and troubleshooting on scripting like Bash.