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Devops Engineer (linux/unix) Resume

Bend, OR

SUMMARY:

  • Over 8+ years of experience as a RHEL 3.x/4.x/5.x/6.x/7.x, CentOS, Ubuntu, Sun Solaris 8/9/10 SLES 10/11 & IBM AIX 6.x/7.x platforms.
  • Experience working on planning, installation, migration, upgrade of OS (AIX, Linux), as well as deployment and Production Support.
  • Strong Understanding of Change Management procedures and Incident Managements.
  • Attended multiples CDE (Critical Data Element) calls to create project plans with customer for new server procurements.
  • Worked with different teams (EMC, NI (Network Infrastructure), Security, TSM) for delivering new server procurements.
  • Good Understanding of business requirements, capacity planning, Vendor management, team co - ordination, business migration. Patching and Packages rollouts.
  • Expert experience in install / rebuild servers in Red Hat Linux 5,x & 6.x for both virtual and physical servers.
  • Migrated legacy F5 LTM and GTM appliance to newer version appliances
  • Created complex rules utilizing TCL scripting to perform load balancing decisions. Supported a Large F5 application delivery ( LTM , GTM , ASM , APM ) infrastructure of about one hundred nodes
  • Deployed Enterprise manager to monitor and manage over fifty BigIP F5 devices. Engineered traffic management solutions, including designing, low level engineering for F5 LTM , GTM
  • Expert Level F5 LTM , GTM and F5 Big IP Administrator.
  • Helped Oracle DBA’s in setting up ASM devices on redhat physical servers.
  • Deleted instances as per the decommission request in OpenStack environment.
  • Worked on Installation and configuration of various services like DNS, DHCP, NFS, Sendmail, Apache Web Server, Samba, SSH, http, RPM, package management.
  • Experienced in OS (Solaris, Linux, and AIX) level patching and level recovery.
  • Experience in Linux Virtualization implementations such as VMware.
  • Created/written backup scripts to transfer the XEN virtual machine images to DR site.
  • Worked on Setup and configuration of Apache in Redhat.
  • Helped in analysis for HP and Dell physical servers for migration and update the runbooks with ILOs and iDRACs.
  • Re-IP of ILO and DRAC for migration activity.
  • Worked on INC’s with hardware team on swapping failure components on HP, Dell and IBM P-Series servers.
  • Install and configure RHEL 5/6/7 on HP Proliant servers.
  • Worked on IaaS with experience in (vSphere / ESXi / AWS / OpenStack)
  • Worked on Installing KVM (Kernel Virtual Machine ), configuring KVM Virtual Network , and creating KVM Networked Bridge Interface , creating KVM Virtual Machines .
  • Expertise in configuration Management using CVS, SVN and well versed in code management using Repositories.
  • Worked on installation and configuration of DevOps tool Puppet .
  • Worked on Automation of task using Puppet. Application as wells as any upgrade to the nodes were push through puppet.
  • Worked with scripting languages Linux, Shell scripting and Python.
  • Experience in using Subversion and CVS Version Control.
  • Set up the satellite server and planned for system updates.
  • Worked and Implemented multi-tier application provisioning in OpenStack cloud.
  • Wrote Ansible Playbooks with Python SSH as the Wrapper to manage configurations of AWS Nodes and Test playbooks on AWS instances using Python
  • Experienced in supporting Red Hat Satellite server, RHN .
  • Experienced floating IPs for the desired project in OpenStack .
  • Deployed virtual machines on OpenStack .
  • Have excellent knowledge on Python Collections and Multi-Threading.
  • Expertise in systems performance monitoring & tuning for CPU, disk, memory and network utilization.
  • Extensively worked with Nagios for performance monitoring.
  • Experience working on boot loaders like GRUB and LILO and also upgrading Kernel on Redhat Linux servers.
  • Adding and deleting DNS entries in OpenStack .
  • Experienced in Installation and Configuration of Web Sphere Application server V3.5/4.0/5.x,6.x, IBM HTTP Server, Webserver on AIX, Solaris and Linux platforms.
  • Use nova commands to modify or alter OpenStack instances as per the requirement.
  • Planning and Designing VMware VI3 (ESX3.x/ ESXi/ Thin ESX and VMware Virtual Center).
  • Configuring & Troubleshooting NFS Servers and Clients, in UNIX Environment.
  • Strong knowledge with EMC storage in AIX , troubleshooting EMC PowerPath issues and Lun's configuration.
  • Worked on Openstack dashboard to attach or detach interfaces for existing instances.
  • Implementation of RAID levels like 0, 1, 0+1, 5 using VERITAS Volume Manager.
  • Experience on Korn Shell, Bash, Perl, Python scripting.
  • Worked on creating documentation as well as worked on 24X7 call rotation support.

TECHNICAL SKILLS:

Operating System: RHEL 3.x, 4.x, 5.x, 6.x, 7.x Centos 4/5, AIX, Ubuntu, SUSE, Cent OS, Windows XP

Web/Application Server: Apache, Tomcat, WebSphere, WebLogic, and J2EE

DevOps: Puppet, Chef, Ansible, SVN, GIT

Languages: HTML, Bash, Shell, Python, Ruby Scripting

Network Services: DHCP, Send mail, HTTP, Samba, NIS, NFS, DNS, SSH, FTP, LAN, WAN, TCP/IP, TELNET

Virtualization: VMware and VSphere

Monitoring Tool: Nagios, Cacti

IP: Chains, Iptables, NAT

Storage: SAN, EMC Symmetrix / Clarion, iSCSI, SNAP, NAS, DAS, and LPAR

Backup Management: VERITAS NetBackup 4.x/5.x/6.x, Ufsdump, ufsrestore, tar, dd, cpio

Cluster: VERITAS Cluster Server (VCS), Sun Cluster, HP Service Guard, AIX HACMP

Cloud Platform: AWS, Microsoft Azure and Rackspace, Openstack

Third Party Software: VERITAS Volume Manager, POSTGRES Enterprise Manager, LVM, LDAP, SSH

PROFESSIONAL EXPERIENCE:

Confidential, Bend, OR

Devops Engineer (Linux/Unix)

RESPONSIBILITIES:

  • Installation and configuring Red hat Enterprise Linux 5.x/6.x,7.x, Suse Linux, CentOS and AIX servers in development, test and production environments.
  • Built Servers using Kickstart for Linux, Jumpstart for Solaris, and NIM for AIX installation
  • Worked on Linux administration Support, Performance tuning & monitoring, problem analysis & resolution.
  • Worked on configuration and Volume/File system management using Logical Volume Manager (LVM)
  • Worked on different ticketing tools for production support like Service Now and SRS (Service request system)
  • Worked on creating RFCs (Change Management) and INCs (Incidents).
  • Maintained Server build repository using CMDB.
  • Worked on different Monitoring tools TEP (Tivoli endpoint), BMC Patrol.
  • Worked on Open LDAP administration, providing user authentication and resolving various issues including setting replication between master server and backup server.
  • Immediate acknowledgement of issues & solving them while constantly updating status for all levels of severities and provide RCA report.
  • Allocate the virtual machine resources in OpenStack as per the application team requests.
  • Effective utilization of change management in installing or configuring, packages, patches or 3rd party tools on Linux.
  • Perform korn shell and Perl scripting as needed to support integration and automation as necessary.
  • In-depth expertise with F5 BIG-IP series installation/ configuration/ support
  • Implement various F5 iRule (F5's TCL scripting language), add F5 GTM pair to existing group.
  • Worked on HP Proliant & Dell PowerEdge servers.
  • Install and configure ILO’s and iDRAC for physical servers.
  • Install, configure and Administer Redhat Cluster suite on HP Proliant DL360 servers.
  • Downloaded firmwares for physical servers (HP & Dell) and maintained repositories for required firmwares.
  • Worked on Oracle DBA's in setting up Oracle RAC in redhat clustering.
  • Administer, Configure and Troubleshoot VERITAS Volume Manager, File Systems and VERITAS Cluster Server.
  • Installed and configured VERITAS NetBackup 7 Client on Solaris 11 and Red Hat Enterprise Linux 6.
  • Installed Oracle packages and update the same in YUM repositories for RHEL6 & RHEL7 servers.
  • Configuration of network yum repository as well as local repository.
  • Developed tools to automate some base tasks using Shell Scripting, Python
  • Used Python scripting to encrypt and decrypt data.
  • Worked and configured GPFS , GFS2 , LVM and SAN / NAS storage.
  • Experienced in Writing and Updating Shell Scripts and Perl Scripts. Installed and configured new hard drives and memory upgrades.
  • Migrating VCS , Oracle RAC and RedHat Clusters with gfs filesystems servers across the Data Center , which includes Configuration of new IP , VIP and Private IP .
  • Imported and managed multiple corporate applications into Subversion (SVN).
  • Worked on F5 load balancers to load balance and reverse proxy Web Logic Servers
  • Configured Puppet Configuration Management with specific client requirement such as Create user/remove user, Install /Remove packages and package updates, Configure multi nodes.
  • Adding Oracle ASM disk to the server. Creating and managing LVM .
  • Installed and configured ESXI servers and VM virtual servers using VM-templates to facilitate server consolidation, migration and testing.
  • Worked on configuration and administration of NFS, DNS, Open LDAP, DHCP, Mail Servers and Web Servers like Apache HTTP & Tomcat in heterogeneous environments
  • Created Bash , Shell & Python scripts for various Systems Administration tasks to automate repeated processes.
  • Used Open stack and AWScloud services to launch Linux and windows machines, created security groups and written basic PowerShell scripts to take backups and mount network shared drives.
  • Good Knowledge on container management using Docker in creating images. Worked on Docker container snapshots, attaching to a running container removing, image managing, directory structures.
  • Experience in setting up the automated build on Docker HUB.
  • Increase application availability by controlling ecosystem DNS with Open shift and running web applications on multiple endpoints.
  • Deploy and monitor scalable infrastructure on Amazon web services ( AWS ) & configuration management using puppet.
  • Designed Puppet Modules to manage configurations and automate installation process.
  • Worked on Installation and configuration of DevOps tool Puppet
  • Created various modules and Manifests in puppet to automate various applications
  • Implementing new projects builds framework using Jenkins & maven & gradle as build framework tools
  • Worked on Redhat5.x and 6.x, SUSE Linux 10.x , Microsoft SCOM hardware platforms and in VMwarevSphere client 5.x virtual environment
  • Virtualized the servers using the Docker for the test environments and dev-environments needs, and configuration automation using Docker containers .
  • Setup monitoring and alerting mechanisms for AWS and private datacenter infrastructure
  • Transitioned Infrastructure from private data center to Cloud (AWS)
  • Experience with configuration management and automation tools ( Puppet / Docker )
  • Work with Docker for convenient environment setup the test environments
  • Knowledge on Deploying Couch base, Tomcat and Elastic search clusters using Docker.
  • Integrated GIT into Jenkins to automate the code check-out process
  • Troubles hooted build issues during the Jenkins build process.
  • Optimized volumes and EC2 instances
  • Configured S3 versioning and lifecycle policies to and backup files and archive files in Glacier
  • Resolved system issues and inconsistencies in coordination with quality assurance and engineering teams.
  • Member of Continuous Change Management CCM representing changes for Release and environment configuration(TFS on linux windows platform)
  • Perform Deployment of Release to various QA & UAT in Linux environments
  • Configured Elastic Load Balancers with EC2 Auto scaling groups
  • Implementing a Continuous Delivery framework using Jenkins, Puppet, Maven & Nexus in Linux environment.
  • Implementation of cloud services IAAS, PAAS, and SaaS which include Openstack , Docker and Openshift.
  • Worked with Openstack and Openshift cartridge technologies and tools as well as managed their integration with application.
  • Created monitors, alarms and notifications for EC2 hosts using CloudWatch.
  • Creation and maintenance of content for the Ansible community, and implementation of Ansible modules based on customer and community requirements.
  • Deploy and monitor scalable infrastructure on Amazon web services (AWS) & configuration management using Chef and Ansible

Very good understanding and working knowledge of Orchestrating Application Deployments with Ansible

Environment: Red hat Enterprise Linux 4, 5.5, 6.5,7 Shell Scripting, NFS, Samba, Puppet, SVN, GIT, AWS, Web Sphere, DNS, Tomcat, Apache, LDAP, VMware, Dell, HP Proliant server, VMware, VSphere, VCenter 5.5,5.1,ESXI 5.5,5.1,5.0

Confidential, Phoenix, AZ

Sr. Systems Engineer (Linux/Unix) /Storage

RESPONSIBILITIES:

  • Responsible for installing/upgrading/configuring/building/managing RHEL 5. X, 6.x & 7.x and Oracle Enterprise Linux 5.x/6.x servers using Jumpstart/Kickstart
  • Expertise in designing/building/configuring documentation related to Red Hat Enterprise Linux via Kick start/PXE and Red Hat Satellite Server.
  • Defined, documented and implemented hardened, standardized operating system images based on Red Hat Linux Enterprise 5, 6 & 7.
  • Administer, Configure and Troubleshoot VERITAS Volume Manager, File Systems and VERITAS Cluster Server.
  • Installed and configured VERITAS NetBackup 7 Client on Solaris 11 and Red Hat Enterprise Linux 6.
  • Extensive hands-on engineering and implementation knowledge of leading container orchestration and infrastructure management tools (Kubernetes, Mesosphere DCOS, Red Hat Open shift)
  • Architecting, planning, designing, developing, deploying and supporting RAC/ASM environment
  • Installing, administering Red hat using Xen, KVM based hypervisors.
  • Worked on Container management (Open shift/Docker) to monitoring solutions, implemented logging solutions and performed patching.
  • Responsible for Upgrades of 10g R2 RAC to 11g R2 RAC & Migrated Non-ASM Single Instance to ASM RAC Instance.
  • Working on the project of F5 LTM and GTM code upgrade project, doing couple of them every week.
  • Responsible for upgrades, configuration, and deployment of Apache Tomcat, httpd, IHS, WAS and several other software packages.
  • Installed PEM certificates on F5 for SSL offloading
  • Developed scripts for automation and monitoring purpose in PERL and Python.
  • Wrote Bash/Shell/Perl scripts for managing day-to-day transactions &for automation of routine tasks
  • Performed live migrations and consolidated the physical servers to VMware infrastructure virtual machines with shared storage across EMC clariion, Dell and Open filer SANs.
  • Added, deleted and modified pool members in F5
  • Performed File Transfer Services Infrastructure Systems Analyst on Unix/Linux (Solaris/Redhat RHEL)
  • Implemented Nagios and integrated with puppet for automatic monitoring of servers known to puppet.
  • Worked with centralized logging services like ELK, SumoLogic, Loggly & Splunk
  • Worked on application protocols (e.g. DNS, SSH, HTTPS, SFTP, SMTP) and their behaviors across network environments.
  • Managed the F5 BigIP GTM / LTM appliances to include writing iRules, SSL offload and everyday task of creating WIP and VIPs
  • Wrote Perl and shell scripts to automate certain system administration tasks. Improved Linux OS deployment and management by creating customized kick start scripts and installing puppet.
  • Hands on knowledge of TCP/IP, Multicasting and network concepts (DNS, DHCP, NFS, NAT, UDP, VLANs).
  • Troubleshooting OS / Hardware related issues and monitor server health on a day-to-day basis
  • Providing system/network administration support in an environment comprising of HP, Cisco UCS and DELL servers
  • Wrote corn jobs for Red hat servers, integrated with Send mail, automated FTP uploads/downloads, scp for automated batch file transfers.

Environment: Red-Hat Linux Enterprise servers 5, 6 & 7, SAN(Netapp), Openstack, Openshift, Docker, ORACLE 11g/10g/, Shell programming, Jboss 4.2, JDK 1.5,1.6, WebSphere, Splunk, VMware Virtual Client 3.5, VMware Infrastructure 3.5, Puppet, Amazon AWS.

Confidential, Phoenix, AZ

Sr. Systems Engineer (Linux/Unix) /Storage

RESPONSIBILITIES:

  • Experience in zoning, provisioning, SAN / NAS connectivity, configuring thin pools/ devices, Replication that includes Hitachi Universal replicator.
  • Provided 24x7 System Administration support for Red Hat Linux servers and resolved trouble tickets on shift rotation basis.
  • Experienced in working with Storage Area Network ( SAN ), EMC CLARiiON CX, EMC Symmetrix DMX , EMC MirrorView , HP storage and Hitachi data storage.
  • Experienced in Writing and Updating Shell Scripts and Perl Scripts. Installed and configured new hard drives and memory upgrades.
  • Secure communication using SSL mutual authentication between multiple Vendor Products and all integration endpoints like F5 Load balancer, Apache, Tomcat, LDAP, Data power ESB for web services integration
  • Installed/configured EMC Storage with 0 , 1 & 5 RAID configurations.
  • Working in storage administration/implementation - design, deployment and maintenance of SAN / NAS environment.
  • Provide the support of building the server, patching, user administration tasks, deployment, software installation, performance tuning and troubleshooting and KVM.
  • Managed Compaq and Linux workstations and servers.
  • Experienced in working with Storage Area Network ( SAN ), EMC CLARiiON CX , EMC Symmetrix DMX , EMC MirrorView, HP storage and Hitachi data storage
  • Performed tasks on F5 load balancer like ordering new certs, installing and renewing SSL certificates, bouncing servers with performance issues after taking them out of the server pools, ID maintenance, User, Group management for all the UNIX servers
  • Identify Host Architecture, HBA, LVM, SVM, VxVM/VxFS, Drivers, BIOS Firmware Versions,
  • VERITAS Cluster, Installed Patches, Packages and File Systems for Solaris, Linux and AIX.
  • Remediate Patches, Packages and Drivers as per Hitachi Compatibility Matrix On Solaris 10/11, Red Hat Enterprise Linux 5/6, SUSE Linux 10, AIX 5.2/5.3/6.1.
  • Created File systems from local storage as well as NFS partitions for application portability
  • Automated routine tasks using scripting languages like Ruby and Python
  • Monitoring system performance, tune-up kernel parameter, adding /removing /administering hosts, users, disks on DNS / NIS domain,
  • Installation and configuration of Oracle 7.x/8.x.
  • Implemented NFS, DNS and NIS under SUN.
  • Implemented multi-tier application provisioning in OpenStack cloud, integrating it with Puppet.
  • Involved in integrated vSphere hypervisor with OpenStack
  • Wrote bash shell scripts for getting information about various Linux servers
  • Installed and Configured Sendmail Utility on Linux Servers.
  • Administered NFS Mounts.
  • Executing LVM (Storage Methodology), Performance monitoring, Error logging, Diagnostics, for all Unix Servers
  • Involved in Open system Storage Environment that involves products like Hitachi ( USP , VSP ).
  • Troubleshooting Backup and Restore problems Creation of LVMs on SAN using Linux utilities
  • Monitored overall system performance, performed user management, system updates and disk & storage management
  • Expertise in Puppet for applying patches, writing missing test code, verifying filed bugs, and provided support anything else related to development.
  • Installed VERITAS Volume Manager, VCS Cluster Server for failover and for mirroring and raid level configurations on EMC storage frames.
  • Implemented multi-tier application provisioning in OpenStack cloud, integrating it with Puppet.
  • Performed OS upgrades and Patch loading as and when required.
  • Scanning for Vulnerabilities on all Unix Servers after new VM and physical build, resolving if any issues are found
  • Backing up and restoring files across the network.

ENVIRONMENT: Red Hat Linux 4.x, Oracle 7.x/8.x, SUN, DNS, Sendmail, NFS, Solaris, LVM, Bash, Shell.

Confidential, Tempe, AZ

Systems Engineer (Linux/Unix)

RESPONSIBILITIES:

  • Installation, configuration and administration of Red Hat Linux servers and support for the servers till build warranty period.
  • Installation, maintenance and regular upgrades of Red Hat Linux Servers using kickstart based network installation
  • Experienced in Writing and Updating Shell Scripts and Perl Scripts. Installed and configured new hard drives and memory upgrades.
  • Provided 24x7 System Administration support for Red Hat Linux servers and resolved trouble tickets on shift rotation basis.
  • Worked on HDS Storage migrations from USP to VSP arrays
  • Set up Sun servers for SAN -through- FCP boot as against booting from internal hard disks
  • Worked on Remedy Ticketing.
  • Implemented NFS, DNS and NIS on SUN Solaris servers.
  • Work with team of developers on Python applications for RISK management.
  • Coordinated with the Storage, Network and Hardware teams on server provisions ( HP ProLiant DL385 / 585 G5 , G6 servers, and HP BL465C G5 blade centers).
  • Wrote bash shell scripts for getting information about various Linux distros for migration activities.
  • Installation and configuration of VERITAS Storage Foundation Suite: VERITAS Volume Manager, VERITAS File System, VERITAS Cluster Server and Oracle SF RAC .
  • Configured Sun servers M4000 and M5000 for operational readiness upon OS installation
  • Installed and Configured Sendmail Utility on Linux Servers.
  • Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager& Solaris Volume Manager. File system Tuning and growing using VERITAS File System ( VxFS ), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
  • Administered NFS Mounts on AIX and Red Hat Linux servers.
  • Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.
  • Troubleshooting Backup and Restore problems Creation of LVMs on SAN using Linux utilities.
  • Deployment of new nodes using Puppet. Configured new nodes to enterprise setting. Worked on automating task-using Puppet. Application as wells as any upgrade to the nodes were push through puppet and cloning it to Gitlab.
  • Configuring multipath, adding SAN and creating physical volumes, volume groups, logical volumes.
  • Machines with shared storage across EMC clariion, Dell and Open filer SANs.
  • Working on Power Path upgrades on Redhat and AIX servers.
  • Installed and configured ESXI servers and VM virtual servers using VM-templates to facilitate server consolidation, migration and testing.
  • Deployed virtual machines from templates and installed configured application in the virtual machine
  • Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.

ENVIRONMENT: Red Hat Linux 4.x/5.x/6.x, AIX 5/6, Sun Solaris 8/9, DNS, SENDMAIL, NFS, LVM, Bash Shell.

Confidential

Jr. Linux Systems Administrator

Responsibilities:

  • Worked as a System Administrator for AIX and Linux servers.
  • Configured IBM p5, RS6000, 520,550,570,590,595,610,690.695 for production, staging and test environments.
  • Install and configure DHCP, web (Apache, IIS), mail (SMTP, IMAP, POP3), and file servers on AIX and Linux servers
  • Created and managed user accounts, security, Access Control Limits (ACL), permissions, disk space and process monitoring in Redhat Linux and IBM AIX
  • Monitored Disk & Memory Utilization on AIX 5.1, 5.2
  • Experience using LVM creating VGs, LVs, and disk mirroring.
  • Installed and set up Oracle9i and Websphere on Linux for the development team.
  • Implemented Virtualization using VMWare in Linux on HP-DL585.
  • Linux kernel, memory upgrades and swaps area. Red hat Linux Kickstart Installation.
  • Hands on experience of HMC & LPAR.
  • System performance monitoring and troubleshooting in AIX Environments.
  • Creating users, managing user permission, maintaining User & File system quota in Redhat Linux and AIX.
  • User management, security planning and implementation, Backup and restore Management.
  • Perform korn shell and Perl scripting as needed to support integration and automation as necessary.
  • Installed and configured ESXI servers and VM virtual servers using VM-templates to facilitate server consolidation, migration and testing.
  • Deployed virtual machines from templates and installed configured application in the virtual machine

ENVIRONMENT: Red Hat Linux 4.x/5.x, AIX 5.x Servers in IBM P570, 550, 570, 590, 595, 610, 690, 695, HACMP 5.3, Suse Linux, IBM DS4300 Storage System, ESS Shark with SAN environment

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