SUMMARY

• Obtain a position as a Linux System Administrator where I can apply my extensive experience, knowledge and skills in Linux based environment for the growth and development of the company. Acquaintance with Ansible to perform configuration management, automation, application deployment and cloud provisioning.
• Day - to-day ops included spinning up new machines in a diverse RHEL environment, patching existing servers using the red hat satellite and speeding up sluggish servers with dev-ops skills.
• Enhance Linux security using Iptables & SElinux.
• Install, Configure, upgrade and troubleshoot RHEL 5,6,7 with various tools like Kickstart.
• Extensive understanding of Logical volume manager (LVM) with create/resize/delete partitions and formatting filesystems.
• Install, Query, upgrade packages using YUM and RPM.
• Create and configure YUM repository.
• Provided sysadmin support that included user management such as setting up new user accounts, patching, backups, monitoring and configuring.
• Virtualize physical server into multiple virtual machines using VMware virtualization tool.
• Expert with Implementing hypervisor on ESX hosts, creating clusters with vSphere High Availability (HA) and Distributed Resource Scheduler (DRS) solutions in VMware.
• Installed Linux distributions on bare-metal machines using PXE boot environment.
• Expert with distributing configuration data such as hostnames and user accounts between server-client environment using Network Information Service (NIS).
• Shared files and directories over a network using Network File System (NFS).
• Setup RAID levels to increase redundancy, performance, disk utilization and resilience of hard drives.
• Extensive knowledge of filesystems ext2, ext3, ext4 & XFS.
• Enhanced storage devices using SAN & DAS.
• Kernel tuning and configuring.
• Combine multiple networking interfaces to increase available bandwidth using NIC Bonding.
• Dynamically alter Kernel Parameters as requested by clients.
• Deducted failed services, processes, network and server outages using the Nagios Monitoring tool.
• Experience in designing AWS cloud models for service platforms Infrastructure-as-a Service (IAAS), Platform-as-a-Service (PAAS) and Software-as-a-Service (SAAS).
• Extensive knowledge of Amazon Web Services (AWS) cloud platform EC2, S3 Bucket, Route 53, EBS, Autoscaling, Cloud Watch, SQS etc.
• Exposure to automation and configuration tool Puppet.
• Performed DevOps operations with various DevOps tools such as Dockers, Puppet and Ansible for expediated resolutions of problems.
• Exposure to Solaris 10, 11 and AIX 6.2, 7.1.
• Implemented automation tool Ansible for repetitive tasks, configuration management & cloud provisioning by writing Ansible playbooks.
• Monitor Linux processes, load average and balance on the system by using command line tools such as TOP, VMSTAT, LSOF, IOTOP, IOSTAT.
• Scheduled tasks using Cron Jobs.
• Automate tasks using bash scripts.
• Utilized LAMP and APACHE for web development processes.

PROFESSIONAL EXPERIENCE

Confidential, Charlotte, NC

Linux Platform Engineer

Responsibilities:

• Deploy Redhat Linux operating system image on bare-metals using PXE-BOOT with customized Kickstart file.
• Perform installations, upgrades, troubleshooting & configurations on physical and virtual machines in a Linux environment.
• Experience in implementing security layers on RHEL using SElinux and Iptables.
• Install packages, system upgrades and patching using YUM and RPM.
• Creating Clusters on ESX host, cloning and using templates to deploy VMs in vSphere 4.1
• Sharing files and directories among clients using NFS.
• Provide sysadmin provision for servers and workstations.
• Automate administrative tasks using configuration management tool Puppet by writing manifests and modules for provisioning, deploying, configuring and orchestrating.
• Utilize puppet to enhance automated provisioning of cloud infrastructure.
• Enhanced automation writing Ansible playbooks to orchestrate continuous deployment, configuring new servers and application deployment.
• Perform daily DevOps operations to secure the environment using DevOps tools such as Nagios for monitoring servers and logs.
• Manage storage and created backup utilizing the AWS cloud service S3 Bucket, Glacier and EC2 instances also creating security groups, autoscaling and handle DNS queries with Route 53.
• Create user accounts and share on multiple networks using NIS.
• Implement, configure, upgrade NetBackup solutions.
• Configure and troubleshoot servers that include DHCP, DNS, NIS, NFS, VSFTPD, SSH.
• Monitor system statistics and perform necessary troubleshooting procedures of managing load averages and performance analysis by utilizing SAR, Top, Vmstat, Iostat.
• Change ownership of files and directories to allow access to selected users to make changes.
• Generate SSH keys encryption for operation network services and remotely accessing client machines.
• Good knowledge of configuring User Authentication for the AIX systems.
• Migration of AIX systems 6.1 to 7.1
• Utilize TCP & UDP to send packets over an IP address.
• Allocate disks using Storage Area Network (SAN) over Local Area Network (LAN).
• Kernel, operating system and server upgrades on Linux systems
• Resolved issues/tasks using Jira ticketing system.

Confidential, Delaware

Senior Linux Systems Admin

Responsibilities:

• Performed routine system backups by compressing large files and directories utilizing tar balls and gzips, also automated maintenance tasks by scheduling cronjobs.
• Utilized Red hat satellite for patching servers.
• Deployed RHEL 6 & 7 on bare-metals and VMs
• Combined disks in volume groups and logical volumes for instant resizing, creation and deletion of disk partitions.
• Implemented RAID arrays for performance boost and redundancy.
• Migrated VMs across hosts using Vmotion technology and enabled VM failure monitoring with vSphere HA and vSphere DRS solutions.
• Kernel tuning of AIX systems
• Installed and configured web application on AIX and Linux environment.
• Patching AIX systems to latest updates.
• Used ansible for automation purposes and deploying applications by writing ansible playbooks.
• Experienced with Amazon Web Services (AWS) such as EC2, IAM, S3 Bucket, Auto scaling, Route 53, Elastic IP, ELB etc.
• Applied IAM instance to create new accounts, roles and groups
• Implementation experience with puppet manifests and pushing them over to puppet clients.
• Built File transfer protocol (FTP) server for transferring files to clients on a network.
• Updated and queried packages with YUM & RPM.
• Enhanced system performance of virtual memory, swap space, CPU usage using local monitoring utilities like VMstat, Top, SAR.
• Configured load balancer for distributing traffic among servers.
• Practiced networking concepts such as TCP/IP, UDP/IP, DHCP, DNS, NFS etc.
• Experienced with mounting and unmounting filesystems.
• Experienced in disaster recovery procedures such as migrating data on cloud computing platform AWS and Azure.
• Performed kernel tuning and expanded parameters as per clients need.
• Provided user management support.
• Knowledge of DevOps tool Docker and container technology for open source software development.
• Exposure to DevOps tool Jenkins for continuous integration with plugins.

Confidential, New York, NY

Linux Analyst

Responsibilities:

• User management support with restricted permissions to any mishaps.
• Tuning and hardening Linux based OS’s with enhanced security layers of firewalls.
• Supervised servers against vulnerabilities utilizing NMAP.
• Installed and configured and deployed Linux servers in VMware and using PXE boot with kickstart file.
• Upgrades servers to the latest releases with YUM.
• Created Yum local repository.
• Creating and managing user accounts and assisted with password resets and locked accounts.
• Performed disk management, implemented filesystems and created virtual memory (Swap Space).
• Remotely moving files using VSFTPD, WINSCP, SCP
• Utilized LVM to create/resize/delete partitions.