Devops Administrator Resume
MA
SUMMARY
- 7+ of experience in IT industry comprising of Three years of Linux Systems Administration and almost Four years of Software Configuration Management (SCM). Extensive experience includes SCM, DevOps Build/Release Management, Change/Incident Management and Cloud Management.
- Experience in building Servers using PXE and Kickstart for Linux, Jumpstart and Flash Archive for Solaris, Implemented puppet, Nagios, Splunk, Chef and DevOps tools.
- Installed ESXi on Bare Metal, installed and upgraded drivers and BIOS Firmware for Qlogic CNA, configured networking (VSS), NIC teaming and software ISCSI adapters for SAN.
- Configured Puppet Master to work with dynamic environments and to accommodate over 30 different node types.
- Configured HA Cluster for ESX Hosts, configured Resource Pools to optimize the available hardware Resources, and enabled DRS for Load Balancing.
- Configured failover priority levels for Virtual Machines running Production applications and databases. Added rules to Cluster for further customization.
- Configured Kernel Parameters for application/databases to meet organizational needs.
- Installed and configured MYSQL - SERVER and client.
- Installed pre-requisites ( dependencies and Kernel parameters) for Oracle 10g and 11g.
- Participated in Data center migration from one physical location to another and Physical to Virtual (P2V) migration.
- Experience working with Amazon Web Services(AWS), IAM, AMI, EC2, EBS, S3 and Elastic Load Balancing.
- Experience using cloud providers and API’s for Amazon (AWS) with CloudSigma(EU)
- Participated in Disaster Recovery Exercises and configured replication servers for disaster recovery.
- Set up Bench-marking to closely monitor server resource utilization and provided direction to team members to add resources as needed to ensure organizational uptime standards.
- Managing various running services and utilizing various tools to more efficiently use network and system resources to enable a high-performance computing environment.
- Working with the Operations team to develop policies and procedures to address network outages and infrastructure overload issues that cause high latency and drop in client connection success rates.
- Experience writing bash shell scripts to automate day to day tasks such as backup, synchronization, systems health, monitoring etc.
- Deployed Tomcat Web Server and JVM with Puppet, and automated the entire deployment setup for QA, Staging and production environments.
- Deployed winbind and Kerberos based authentication with CHEF in over 300 Linux Servers.
- Created custom facts for Jenkins to facilitate continuous integration process.
- Installed and configured LAMP stack on RHEL and CentOS 5/6.
- Proficient in all aspects of Red Hat Enterprise Linux (RHEL) from installing, Configuring Hardware, and Customizing Applications and using the latest technologies available to design fully automated operating systems.
- Experience working with Hyper -V, creating template of various types and Operating Systems.
- Experience in implementation of FTP, NFS, NIS, DNS, DHCP, LDAP, SMTP and SAMBA servers.
- Experience in installing, configuring and maintaining Application Server like Tomcat and Web Servers like Apache (HTTP, HTTPS) in Linux.
- Experience in RPM Package Administration for installing, upgrading and checking dependencies. Reconfiguring RPM databases using RPMRebuild.
- Experienced in working with EMC -VNX series. Created RAID groups and Storage Pools for ESXI servers.
- Experienced in deploying RHEL 5.x, 6.x in a blade environment and standalone servers.
- Documented solutions and operational procedures for day to day task and Server Builds.
- Created storage group for hosts and connected LUNs for hosts that need to share storage.
- Configured initiators for hosts to enable SAN access.
- Expertise in installation and configuration of FCoE (Fibre Channel over Ethernet) and ISCSI in linux.
- Registered Linux servers with internal Satellite Server for package management, synced Satellite server's channels with RHN's Central Server to update its database metadata and RPM packages.
- Expertise in YUM (Yellowdog Updater Modified) repositories configuration and provide them through HTTP, FTP and NFS.
- Experience in implementing Kernel Based Virtualization (KVM) from scratch and network provisioning for VMs through NAT or BRIDGE.
- Expertise in implementing and configuring of Logical Volume Manager (LVM) for RHEL/SuSe, Solaris Volume Manager (SVM), VeritasVolume Manager (VxVM).
- Configured MultiPaths on Storage provided by SAN (HP, EMC, NETapp).
- Expertise in standard Network configuration and NIC teaming (Bonding) in Linux and (IP network MultiPathing) in Solaris.
TECHNICAL SKILLS
Operating Systems: UNIX, WINDOWS NT/2000/2003/XP/VISTA/7, AIX, Linux (Red Hat 4.x, 5.x, 6.x)Version Control Tools SVN, IBM Rational Clear Case, Perforce, RTC, GIT, Source Tree,CVS
Languages: XML, SHELL, PERL, RUBY, C, JAVADatabases MS Access, Oracle 9i/10g/11g, DB2, My SQL
Application Servers: WEBLOGIC, WEBSPHERE, TOMCAT.
Tools: ANT,HUDSON/JENKINS, CHEF, PUPPET, BUILD FORGE, NAGIOS, MAVEN
Cloud: AWS EC2, VPC, EBS, AMI, SNS, RDS, EBS, CloudWatch, CloudFormation AWS Config, S3, Cloud Trail, IAM. VMWare.
PROFESSIONAL EXPERIENCE:
Confidential, MA
DevOps Administrator
Responsibilities:
- Resolve CC MS mastership issues, CC MS synchronization issues, lost CC MS synchronization packet issues, CC MS CCRC proficiency.
- Resolve CC (native client and remote client) user issues, view issues, check out/in issues, configuration spec issues, branches/merging issues.
- Install and configure Linux CCRC 'WAN server' on servers.
- Define and implement CC MS use models (mostly for Denver, since Melbourne has already).
- Set up CC MS shipping server routing on vob servers.
- Monitor CC MS system log files, export/import logs, incoming/outgoing packet storage bays, vob/view registries, CC/MS performance.
- Create CC vob, create CC vob replica, create branches, labels, attributes, elements, hyperlinks and triggers.
- Working on VMWare Servers.
- Implemented puppet, Nagios, Splunk,Docker and DevOps tools.
- Configuration of Monitoring tools in Linux and Solaris servers.
- Creation of SAN File System on Red Hat Linux using multipath configuration.
- Rebuilding of kernel in RHEL using mkinitrd.
- Configuration of Network bonding which include Active/Standby and Active/Active.
- Installation of HBA cards ( Emulex and Qlogic )
- Troubleshooting Network, memory, CPU, swap and File system issues, TCP/IP, NFS, DNS,SMTP in Linux and Solaris servers.
- Performance tuning of Virtual Memory, CPU, system usage in Linux and Solaris servers.
- Supported class monitoring and management tools such as Open NMS, Tivoli and VCO,administrating SaaS environment /Saas systems and tuning.
- Performed Disaster Recovery in RHEL servers which consists of LVM based FS and Red Hat Clustering.
- Creation, initialization, addition of Oracle ASM and FSR devices in multipath environment
- Performance Monitoring and Performance Tuning using Top, prstat, SAR, vmstat, ps, iostat.
- Building of Oracle RAC (Oracle Real Application Clusters) environment.
- Installation, configuration and administration of Jboss, Apache, Weblogic, Tomcat and Websphere.
- Installation of third party tools using packages.
- Supported AWS Cloud environment with 200+ AWS instances and configured Elastic IP &Elastic Storage and also experience working on implemented security groups.
- Creation of Jumpstart and Kickstart configuration for the automatic provision of servers using Bladelogic .
Environment: Windows Server 2008, ClearCase, ClearCase MultiSite, ClearQuest, Visual Studio 2010& 2012, Oracle 10,11, MS Sharepoint, SQL, HTTP Server, WebSphere, MS Active Directory, ESX, BMC BladeLogic.
Confidential, Atlanta, GA
DevOps/Build and Release Engineer
Responsibilities:
- 19 Replicated MultiSite VOBS per Sites, Working on VMWare Servers, UCM Knowledge SME
- Automating Clearcase activities using scripts, Installation of systems using Jumpstart for Sun Servers and Kickstart for RHEL
- Build and Release Management support, Configure, support and perform routine maintenance of hardware and software for Linux
- Maintained ClearCase environments World Wide.
- Clearcase integration with other tools,Disk space management
- Expertise in implementing puppet for configuration management and to automate processes.
- Implemented Bash, Ruby scripting.
- Updating patches to keep servers updated against bugs present in the operating system using Red Hat Satellite Server, yum, etc.
- Installed packages using YUM and Red hat Package Manager (RPM) on various servers.
- Troubleshooting network administration, IIS configuration, DNS setup and modifications, firewall rule sets, local and distributed director, connectivity, and supporting applications.
- Worked with Red Hat Satellite Server which is used to push changes across various servers simultaneously.
- Involved in installation and configuration of various Third party software onto servers.
- Installed, configured and provided support for Tivoli Monitoring software across various OS platforms like RHEL, AIX and Solaris.
- Configuring and managing the SSH, SSL, NFS, FTP, and SMTP Servers on Linux.
- Performed the daily system administration tasks like managing system resources and end users support operations and security.
- Involved in ILMT Agent Deployments and Oracle/SQL Upgrade project which includes various UNIX builds of different OS platforms across various data centers.
- Responsible for independent support of Tier 2 issues: reboots, start/stop services, reset Terminal Service and pc anywhere connections, and administrative server maintenance. Daily follow up with clients to ensure resolution of all issues.
- Provide support to Account Managers, UNIX and Windows technicians, and other departments.
- Used Logical Volume Manager for the management of Volumes including creation of physical and logical volumes on Linux.
- Coordinated with various cross functional teams across IT operations to make sure smooth functioning of projects.
- Worked closely with DBA Team in order to adjust kernel parameters as per requirements.
- Day to day resolution on Linux based issued though SMS ticketing system in compliance to SLA cycles.
- Performed application installation and management on IBM AIX and Linux servers for applications like Web Sphere Application Server (WAS) 7, JBoss 4.2.x,5.x, Sun JES Web Server 6.1, Oracle 10g, Sybase 12.5 etc.
Environment: Windows 7, Linux Red Hat 5 & 6, UNIX (Solaris), ClearCase, ClearCaseMultiSite, ClearQuest, Oracle 10,11, MS Sharepoint, SQL, HTTP Server, WebSphere, LDAP.
Confidential, Las Vegas, NV
DevOps Engineer
Responsibilities:
- Maintained and Administrated UNIX admin (Solaris)
- Maintained and Administrated Red Hat Linux (Red Hat)
- Maintained Apache, Tomcat, JBoss
- Understanding of SCM tools including Subversion and ClearCase, Building with and delivering Java code
- Deployed Java code, Understanding of LAMP applications and setup using puppet.
- Shell scripting
- Implemented Deployments off a deployment schedule to different environments.
- Working on VMWare Servers. Troubleshooting network administration, IIS configuration, DNS setup and modifications, firewall rule sets, local and distributed director, connectivity, and supporting applications.
- Experience in using VMware vMotion to move VM’s from One Datacenter to another datacenter.
- Updating patches to keep servers updated against bugs present in the operating system using RedHat Satellite Server, yum, etc.
- Worked on variety of Linux platforms Red Hat Linux, Solaris which includes installation,configuring and maintenance of applications on this environment.
- Involved in installation and configuration of various Third party software onto servers.
- Build servers using Kick Start, Red Hat Satellite Server, and VSphere Client.
- Installed, configured and provided support for Tivoli Monitoring software across various OS platforms like RHEL, AIX and Solaris.
- Installed packages using YUM and Red hat Package Manager (RPM) on various servers.
- Involved in ILMT Agent Deployments and Oracle/SQL Upgrade project which includes various UNIX builds of different OS platforms across various data centers.
- Troubleshooting network administration, IIS configuration, DNS setup and modifications,firewall rule sets, local and distributed director, connectivity, and supporting applications.
- Responsible for independent support of Tier 2 issues: reboots, start/stop services, reset Terminal Service and pc anywhere connections, and administrative server maintenance.
- Daily follow up with clients to ensure resolution of all issues.
- Used Logical Volume Manager for the management of Volumes including creation of physical and logical volumes on Linux.
- Provide support to Account Managers, UNIX and Windows technicians, and other departments.
- Coordinated with various cross functional teams across IT operations to make sure smooth functioning of projects.
- Worked on projects like PCI, SR to ensure all goes well and provided support till servers go in to production environment.
- Day to day resolution on Linux based issued though SMS ticketing system in compliance to SLA cycles.
- Implemented cloud services AWS.
- Worked closely with DBA Team in order to adjust kernel parameters as per requirements.
- Resource Efficiency /multitasking.
Environment: Windows 7, Linux Red Hat 5 & 6, UNIX (Solaris), ClearCase, ClearCaseMultiSite, Subversion, Oracle 10,11, MS Sharepoint, MS SQL, Hudson, Jenkins, Cruise Control, LDAP.
Confidential, New York, NY
RATIONAL ADMINISTRATOR/RTC/RQM/WEBSPHERE/CC/CQ
Responsibilities:
- Resolved merging issues during rebasing and re-integrating branches by conducting meetings with Development Team Leads.
- Responsible for designing and deploying best SCM processes and procedures.
- Worked closely with software developers and DevOps to debug software and system problems
- Maintained and coordinated environment configuration, controls, code integrity, and code conflict resolution
- Used Jenkins, Build forge for Continuous Integration and deployment into Tomcat Application Server.
- Involved in writing parent pom files to establish the code quality tools integration
- Implemented the setup for Master slave architecture to improve the Performance of Jenkins.
- Developed Shell/Perl Scripts for automation purpose.
- Used AGILE MVN method to develop a build and also ANT as a build tool.
- Installing, configuring and administering Jenkins CI tool on Linux machines.
- Installed and Configured the Nexus repository manager for sharing the artifacts within the company.
- Supported and developed tools for integration, automated testing and release management.
- Implementing server installation, configuration, administration and support of IBM Rational Products including problem resolution and vendor escalation.
Environment: Windows 7, Windows 2008 Server, ClearCase, Subversion, MS SQL Server, MS Sharepoint, MS SQL, Cruise Control, LDAP,GIT.
Confidential, Liberty, MO
DevOps Engineer
Responsibilities:
- Implementing server installation, configuration, administration and support of IBM Rational Products including problem resolution and vendor escalation.
- Implementing technical server installation, configuration, maintenance, and operational support of IBM Rational products
- Implementing interfacing applications with LDAP and SQL Server
- Implementing troubleshooting issues and escalating to vendor support
- Supporting Rational ClearQuest7.1.3.3, RequisitePro 7.1.3.3, Rational ClearCase7.1.3.3, Rational ClearCaseTeamExplorer, RQM 4.0, RTC 4.0, RRC 4.0
- Support and maintain ClearCase, CCRC, ClearQuest, ClearQuest Web, RQM, RTC, Jazz Platform, Requisite Pro.
Environment: Windows 7, Windows 2008 Server, ClearCase, ClearQuest, MS SQL Server, MS Sharepoint, MS SQL, Cruise Control, LDAP, JAZZ Applications, RQM, RTC.
Confidential, Columbus, OH
System Administrator
Responsibilities:
- Performance tuning of Production, QA/DEV hosts and infrastructure running RHEL to maintain a highperformance and efficient run environment and escalating unresolvable issues to the Operations team in a timely manner.
- Monitoring hosts and services in the production and development staging.
- Troubleshooting and resolving errors and alerts in the appropriate timeframe to meet and exceed SLAs.
- Created and configured new RHEL server builds and third party applications (layer2, layer3) via ISO and KickStart.
- Installing and updating packages using YUM (custom YUM servers/repositories) and Red Hat Satellite Server.
- Installed and configured several hundred Red Hat Blade Servers and VMs in VMware ESXi 5, 4.x Virtual Environment.
- Installing and configuring Red Hat Enterprise Linux 5/6 using kick start servers and virtual
- Configured various alerts, captured support logs and configured resource pools utilizing Ci UCS Manager.
- Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using satellite servers.
- Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
- Configured Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes.
- Assisted in physically installing, racking and cabling new IBM Blades Rack Servers.
- Media based install on several hundred Ci UCS B 0 and IBM Blade Servers HS22 as required for UAT/Production Oracle and Web logic. Red hat JBoss, Oracle Enterprise Database and MySQL Database Server requirements.
- Responsible for installation, Configuration of Oracle10g/11g database on Unix, Linux and Windows 2003 Servers and also an integral part of the backup and recovery.
- Participating in 24x7 production on-call support of Linux and provided technical support to users.
- Expertise in creating VM Templates, cloning and managing Snapshots.
- Expertise in working with MySQL databases, Apache Web server, Tomcat Application Servers
- Expertise in hardening, Linux Server and Compiling, Building and installing Apache Server from sources with minimum modules.
- Expertise in security hardening with (iptables/selinux) in major Production Servers, and compiling, building and installing web server based Linux tools./
- Experience in performing, uploading and upgrading new firmware on the Interconnects and Chassis
- Proficient in providing support on the deployed Red Hat Enterprise Linux & Sun Solaris servers from both operating system level and application Level.
- Expertise in configuring Red Hat Cluster Nodes for any legacy applications and verified the daily health check on the Cluster Nodes utilizing clusters.
- Troubleshooting any performance or configuration issues with MySQL and Oracle.
- Monitoring and troubleshoot backups and schedule Cron jobs.
- Experience in database replication using OCFS2 file system with oracle 10g and 11g database
- Experience in deploying several sets of Linux guest builds from VMware templates using PowerCLI as well as Red Hat Satellite Server.
- Experience in deploying RHEL 5.x, 6.1 in a blade environment.
- Experience in scripting using BASH & PERL, Mail Server, Samba Server, Apache Server.
- Worked on configuring NIS, NFS, DNS, DHCP, FTP, FSTP, Telnet and RAID levels.
- Extensive experience in network management TCP/IP, NIS, DNS, NFS, VLAN.
- Patch management of servers and maintaining server's environment in Development/QA/Staging/ Production.
- Resolving assigned remedy tickets and remedy tools in Development/QA/Staging/Production.
Environment: Red Hat Linux /3/4.x/5.x, Solairs 5.x, AIX (5.x, 6.x), Windows Server 2003, Windows 7, VMware VCenter Server, SNMP, SCCM, Apache HTTP, Tomcat, Web Logic, Oracle, HP & Dell Blade servers, AMM.
Confidential
System Administrator
Responsibilities:
- Assisted various senior level Linux architects in installing, configuring and managing Red Hat Enterprise Linux 4.
- Expertise in building development Linux/LAMP servers including webservers, MySQL and Perl based solutions to assist developers.
- Installed RHEL directly on HP … G5 Rack mount servers using PXE boot and ILO.
- Experienced in solving day to day troubleshooting related to Network, Resource Allocation and Resource Availability.
- Experienced with installing and managing ESX 3.5 and beta testing ESX 4.0 and vSphere.
- Installed, configured and upgraded Red Hat Enterprise Linux 4.x to 5.x.
- Analyzed and resolved problems involving operating system issues, application issues, Web site issues, etc.
- Provided 24/7 phone support along with working Level 1, 2, 3 groups in the organization.
- Installed physical hardware including any HBA and modified any kernel parameters to tune the hardware as per the vendor's request.
- Setup and configured various benchmark to test kernel tuning of Linux operating system for DBAs and other groups in the organization.
- Configured and supported a large VMware virtual infrastructure and provided support to product line customers as a Technical Support Engineer.
- Managed a large ESX farm using Virtual Infrastructure client and used the said Virtual Infrastructure client to configure and support the ESX farm.
- Migrated high priority processes to different hosts using vMotion and converted/consolidated various physical servers to virtual by using various performance metrics.
- Added new development user accounts, removed users, reset user accounts in Red Hat Enterprise Linux to allow new developer's access to Red Hat Servers.
- Utilized Nagios based Open Source monitoring tools to monitor Linux Cluster nodes configured using Red Hat Cluster Suite.
- Experienced with Red Hat AS/ES on Dell, HP, and IBM hardware.