SUMMARY

• Seven years of System Administration and IT experience in multiplatform LINUX/UNIX with hands - on experience in system configuration/integration tools.
• Experience configuring and managing Puppetmaster server and experience in updating and creating modules and pushing them to Puppetclients.
• Proven ability to automate server builds using kick start, management and configuration of system services using Puppet.
• Expert in load balancing techniques and knowledge of puppet tool.
• Automated configuration management and deployments using Ansibleplaybooks and YAML.
• Hands on setting up teh Ansiblecontrol machine and configured teh remote host inventories via ssh.
• AWS Cloud platform and its features which includes EC2, VPC, EBS, AMI, SNS, RDS, Cloud Watch, Route53, Auto scaling, Security Groups, Red shift, and Cloud Formation.
• Setting up data in AWS using S3 bucket and configuring instance backups to S3 bucket.
• Solid understanding of RPM & YUM, building, maintaining, and installing packages.
• Worked on Installing KVM (Kernel Virtual Machine), configuring KVM Virtual Network, and creating KVM Networked Bridge Interface, creating KVM Virtual Machines
• Hands-on experience with VMware, installation, configuration of ESX 5.5
• Creating and managing virtual machines and snapshot of machines
• Backup management and recovery policies using VERITAS Net-Backup.
• Hands-on experience in configuring SSH and FTP server/client systems to transfer files.
• Intermediate experience of various networking devices and network protocols.
• Hands on experience in System Administration, Installation, Upgrading, Patches, Migration, Fine-Tuning on Linux & UNIX (Centos, RHEL) systems.
• Build physical and virtual servers using PXE-boot with customized kick start files.
• Troubleshooting and managing servers running Red hat and CentOS.
• Installing and configuring infrastructure servers such as FTP, HTTP, DNS, DHCP, TFTP and NIS.
• ID Management & user administration in NIS domain; Trouble shooting and administration of NIS Master-slave
• Experience working with ticketing systems RT and BMC Remedy
• Experience in Creating, Mounting and Unmounting New File Systems.
• Experienced in implementing and maintaining an Apache Tomcat /MySQL/PHP, LAMP web service environment.
• Managed TCP/IP packets and DHCP servers. Monitoring system performances using Nagios and managing network issues.
• Strong Knowledge in implementation of enterprise storage solutions SAN (created VGs and LVs on san disks), NAS (mounted and shared NAS devices for servers), logical volume management (LVM).
• Independent problem solving and a good team player with strong interpersonal and communication skills.
• Experience in writing shell scripts to automate teh administrative tasks and management using cron and at.
• Experience in using various network protocols such as, HTTP, UDP, POP, FTP, TCP/IP and SMTP.
• Experience with different filesystems like ext2, ext3, ext4 and XFS.
• Experience configuring different RAID levels for system redundancy.
• Working closely with backup team to ensure all servers are being backed up.
• Responding to incidents and working with vendors to resolve system issues.
• Working closely with security team and reviewing Qualys scan reports to remediate vulnerabilities by applying patches.
• Solid understanding and knowledge of change management processes.

TECHNOLOGY SKILLS:

• Bash shell
• Pxe-Boot
• Kickstart
• Red Hat Enterprise Linux 5.x/6.x/7.x
• CentOS 6.x/7.x
• Linux Mint
• HTTP
• FTP
• NFS
• NIS
• CIFS
• Ansible
• Ping
• Traceroute
• Netstat
• Ethtool
• Tcpdump
• Nslookup
• Dig
• Telnet
• AWS Wireshark
• Esxi 5.5
• vCenter
• Vsphere client
• vMotion
• HA
• DRS
• Resource Pools
• VMware Workstation
• Snapshots
• Templates
• Datastores
• iSCSI
• NAS
• Fiber Channel cables
• SAN
• LAN
• EMC
• VNX
• Netbackup 7.6
• Service Now
• Qualys
• LDAP
• Apache Tomcat
• Apache HTTPD
• YUM
• RPM
• Physical Servers: Dell PowerEdge R710
• R810
• HP BL460C
• C-7000
• Cisco C220
• C240M4
• Cisco switches: 6500
• 2750
• 2900
• HP ILO
• TCP/IP
• UDP
• POP
• SMTP
• SMB
• IMAP
• SSH
• ICMP
• Racking
• Stacking
• Cabling
• Physical
• Servers.

PROFESSIONAL EXPERIENCE:

Confidential, Bethpage, N.Y

Devops Engineer/Linux Systems Engineer

Responsibilities:

• Deploying virtual machines and physical servers using PXE-boot with customized kickstart profiles.
• Built more TEMPthan 300 RHEL 7 servers.
• Responsible for complete user management which includes creating, modifying and deleting user accounts.
• Installing and updating packages using YUM (custom YUM Servers/repositories), Red Hat Satellite Server.
• Managing filesystems, users and groups permission and keeping systems up-to-date.
• Solving issues related to user logon, NIS and host connectivity.
• Providing direct user and application support.
• Monitoring infrastructure servers using Nagios monitoring tools and responding to alerts as needed.
• Restoring VMs and data upon in case of any issues.
• Working closely with storage engineers to set up NFS/CIFS shares and as well as requesting LUNS for physical and virtual servers.
• Submitting sos-reports to Red Hat to fix system issues.
• Working closely with developers to deploy applications and fix issues.
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Perform storage management in Solaris 10 RHEL 6 & 7, and CentOS 6 & 7. Partitioning new harddisks, adding and mounting filesystems. Volume management using LVM.
• Tuning teh kernel parameters based on teh application/database requirement
• Configured RAID levels, Disk replacement and File System recovery
• Expertise in working with MySQL databases, Apache Web server, Tomcat Application Servers
• Working closely with security engineers to remediate vulnerabilities by applying patches.
• Keeping teh system secure by applying patches, configuring firewall and enabling SELinux in RHEL 6 & 7.
• Experience NIC bonding/NIC Teaming configuration in Linux/UNIX/Windows/VMware systems to increase teh bandwidth or redundancy based on requirement by teh application.
• Creating and expanding volume groups and logical volumes as needed.
• Managing Packages using YUM and RPM.
• Performance tuning systems using commands like top, vmstat, iostat and sar.
• Setting up network interfaces, troubleshooting network connectivity and resolving network related issues.
• Running ansible ad-hoc commands and writing ansible playbooks to manage and automate configuration.
• Worked onAnsiblePlaybooks to Automate teh rolling restarts of Application Servers.
• Used file module inAnsibleplaybook to copy and remove files on remote systems.
• Experienced on Red Hat Satellite Server with custom repositories to provide a stable management solution for teh Linux environment.
• Implemented active directory using LDAP services and used in conjunction with PAM (Pluggable Authentication Module).
• worked in several AWS services S3, VPC, Cloud Watch, Auto scaling configurations etc.
• Worked with cloud infrastructure of AMAZON WEB SERVICES and computing AMI virtual machines on Elastic Compute Cloud (EC2).
• Installed teh application onAWSEC2 instances and configured teh storage on S3 buckets.
• Design roles and groups for users and resources using AWS Identity Access Management (IAM).
• Design AWS account in such a way dat teh user has minimum privileges and still be able to do wat engineers need to do for their project.
• Creating new filesystems, fixing filesystem errors using e2fsck.
• Managing company’s documentation on internal share point site.
• Experience in writing bash scripts for job automation.
• Building ESXI servers with hypervisor 5.5 and deploying virtual machines.
• Taking snapshots and creating templates to build virtual machines.
• Performed VMotion and Storage-VMotion as per teh environment requirement based on teh resources.
• Building, installing, configuring and maintaining VMware ESXi hosts.
• Applying patches on ESXi servers, monitoring, analyzing and fine-tuning ESXi hosts with vendor assistance.
• Vmotion virtual machines between clusters as needed.

Confidential, Lockport N.Y

Devops Automation/Linux Operations Support

Responsibilities:

• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Managed systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system login, network plunging of servers for maintenance, performance tuning, testing.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Installing and partitioning disk drives. Creating, mounting and maintaining file systems to ensure access to system, application and user data.
• Monitored teh health of teh servers, Operating system, database and teh network.
• Maintaining appropriate file and system security, monitoring and controlling system access, changing permission, ownership of files and directories, maintaining passwords, assigning special privileges to selected users and controlling file access.
• Installed and maintained several Linux servers on a virtual environment
• Resolving system errors and crashes, huge file sizes, file system full errors.
• Remote system administration using tools like SSH, Telnet in Linux.
• Monitoring system performance and check teh status of teh system using utilities such as SAR, TOP, VMSTAT, IOSTAT, NETSTAT etc.
• Troubleshoot performance related issues on RHEL Virtual and physical servers.
• Taking backup using tar and recovering during teh data loss.