SUMMARY

• Over 10+ years of experience as System administrator and providing support to various applications on AIX, Linux (RedHat, Ubuntu & Cent OS) environments.
• Expertise in System Fault verification and analysis, A proven versatility within AIX and Linux front - end technologies, to include Veritas clustering, HA Clustering, GPFS, PowerVM, LVM, Red Hat and Ubuntu Linux distributions. contributing innovative methodologies and alternatives to the growth of the company Dedicated to providing the high quality customer service either from the client's on-site location or from a remote technical support aspect .
• Good experience in monitoring and managing the 24x7 operations to ensure highest stability, availability.
• Expertise in analyzing information system needs, evaluating end-user requirements, custom designing solutions, troubleshooting for complex information systems management.
• Experience in installation, configuration and maintenance of VERITAS Cluster, Redhat Cluster, GPFS and HA Cluster for failover and redundancy purpose.
• Good experience in working with Centrify/ActiveDirectory.
• Scripting done for administrative and management tasks using shell, Bash, Python,Ruby.
• Experience in working with Vormetric Data Encryption Tools.
• Experience in configuring DOCKER server and troubleshooting the issues.
• Experienced in working with management tools like SaltStack, Puppet, Ansible, BladeLogic and scheduled many automated tasks through AT, Cron.
• Installing, configuring and maintaining JIRA, PostgreSQL, Apache web server, Tomcat.
• Experience in end-end configuration of salt masters & EAPI servers and Postgres SQL along with replication. Experience with working with pillars & grains in saltstack.
• Experience in managing Ansible Playbooks with Ansible roles. Used file module in Ansible playbook to copy and remove files on remote systems. Created inventory in Ansible for automating the continuous deployment.

TECHNICAL SKILLS

Operating System: IBMAIX5,6,7,Linux(RedHat,Ubuntu,CentOS,OEL,SUSE), Solaris9,10

Hardware Platform: HP/Dell Blade Servers, IBM RS/6000 SP Servers, IBM pSeries RS/6000 servers, Dell R320, R410, R420, … R810, R710, R610 PE 2970, PE 2980, PE M10 Sun T2000, T5120 T5420, V490, HP (ProLiantDL980,DL380e,DL580),DellPowerEdge M620,905,910

Clusters: POWERHA, Veritas Cluster, Redhat, GPFS

SAN: Hitachi, NetApp, EMC, IBM

Backup Tools: TSM, HPDP,Symantec NetBackup, Avamar, NetWorker

Monitoring Tools: Nagios, SCOM, BPPM, ITM, Hyperic

IBM Director: IBM System Director Installation and Configuration

Bug Tracking Tools: JIRA, Remedy and IBM Clear Quest, Bugzilla

Build Tools: MAVEN, Ant

CI Tools: Salt Stack, Puppet, Ansible, Blade Logic, Jenkins

VersionControlTools: Subversion, GIT, GITHUB, CVS and Clear Case

Authentication: Active Directory(Centrify)

Scripts: Shell, Bash, Ruby, Python, perl

Cloud Computing: Amazon Web Services(EC2,AutoScaling,ELB,EBS,S3,RDS &IAM)

SDLC: Agile, Scrum Waterfall Methodologies

Web servers: Web Sphere, Apache Tomcat,HTTP, JBOSS

Virtualization VMware: POWERVM,LPM,NPIVESX3.5/4.0/5.0,VMware 5.5, Docker

PROFESSIONAL EXPERIENCE

Confidential

Linux/Unix system Administrator

Responsibilities:

• Installing, upgrading and configuring RHEL 5.x 6.x and 7.x on Sun Servers using Jumpstart andLinux using kickstart installation and SUSE Linux servers manually
• Experience in SELinux environments and troubleshooting the issues.
• Maintaining system security by configuring Firewalls,Iptables and SELinux.
• Excellent working knowledge with designing installing and implementing VMware ESX Server, VMware Virtual Center, VMware vSphere, VMware Infrastructure client and other products for Virtualization.
• Managing servers through OPSWare,Running scripts,patching the servers,performing system administrator tasks through OPSWARE.
• Frequently checked ESX server logs for any problems and troubleshoot whenever necessary.
• Experience installing, configuring, and maintaining services such as Bind, Apache, and MySQL
• Configuring TLS Security/ Encryption for outbound emails on SMTP.
• Installed, configured python in linux machines and automated many jobs using python scripting
• Configuration and administration of Fiber card Adapter's and handling of SAN (EMC, Hitachi, IBM and Netapp)
• Hands on experience in working with service desk ticketing tool,Communicating the app owners through ADOBE
• Joining the Technical and non-technical meeting and providing status reports on various issues.
• Hands on experience in updating the daily followups in confluence tool.
• Expertise in system and network monitoring tools Nagios.
• Hands on experience in configuring certificates on the servers
• Experience in managing user accounts, security, rights, disk space and process monitoring in AIX and Redhat Linux.
• Installing, configuring and troubleshooting Veritas cluster on Linux and AIX servers and Uploading the explorer file and Working with the Symantec for various issues related to VxVm & Veritas cluser on Linux and AIX
• Experience in configuration of NIS, NIS+, SSH, DNS, DHCP, NFS, LDAP, SAMBA, sendmail, rsync, sftp, remote access, security management and Security trouble shooting skills.
• Experience in installation & configuration of Web servers such as HTTP, Tomcat & Apache.
• Experience in Installation and Configuration of JBoss on Red Hat Servers.
• Experienced in monitoring system performance and check the status of the system using utilities such as TOP, TOPAS, GLANCE, NMON, VMSTAT, IOSTAT, etc.
• HACMP - Monitoring servers, Starting and Stopping Cluster Services, moving resource groups across the nodes, increasing file system in cluster file system using CSPOC, synchronizing cluster resources and cluster verification
• POWERVM tasks like creating VIOS and LPARs, DLpar(virtual adapter, Memory, CPU), VLAN Tagging and NPIV.
• Created and maintained documentation detailing datacenter cable plant infrastructure, dataCenter asset management (full lifecycle), and regional office network closet requirements (power, cooling, space, equipment location and asset/cabling details).
• LPM administration and performing the operational acceptance test in between the managed system to avoid any point of failures.
• Provide 24x7 on call server support for UNIX andLinux environment.

Confidential

Linux/Unix system Administrator

Responsibilities:

• Experience in administering Linux & AIX in Installation, Configuration, Backup, Recovery, Maintenance, and Support of AIX & Linux servers.
• Experience in Autosys configuration and administration
• Installed configured oracle 10g and coordinating with the oracle team in maintaining the database
• Knowledge and experience on DevOps concepts, tools and technologies like SaltStack, Ansible,Puppet.Docker,AWS,GIT etc.
• Experience in Installation and configuration of PostgreSQL with replication on linux servers.
• Experience with open LDAP, Configured LDAP Server and LDAP Client on Linux.
• Built and configured virtual servers in linux using RHEL KVM and monitored the servers.
• Performing vulnerability scaning and updating the patches as per the recommendations and priorities.
• Hands on experience in joining the servers into Centrify/ActiveDirectory,creating groups at domain level and adding the users etc.
• Maintain and trouble shoot system performance and network monitoring using tools like Nagios, and AWS services such as Cloud watch, Cloud Trail.
• Creating Change Controls, Resolving Incident Tickets and Problem Tickets using Service-Now ticketing tool, and ability to multitask in a fast paced environment under strict SLA and resolve Production Incidents with minimum impact.
• Experienced in installing, configuring and troubleshooting Network issues .
• Hands on experience in performing firmware upgradation activities on Linux & AIX maxhines
• Hands on experience in POWER servers hardware P4,5,6,7,8 and migration activities
• Hands on experience in HMC management, troubleshooting & upgrading HMC servers.
• Created and maintained documentation detailing datacenter cable plant infrastructure, dataCenter asset management (full lifecycle), and regional office network closet requirements (power, cooling, space, equipment location and asset/cabling details).

Confidential

Linux/Unix system Administrator

Responsibilities:

• Experience working on RHEL 6.x/7.x, Apache 1.2/1.3/2.x, Logical & VERITAS Volume Manager, VMware ESX 4.x/3.x
• Installing, configuring and troubleshooting JIRA application on linux servers
• Experienced in creation and maintenance of user accounts and Centrify/active directory.
• Experience configuring, managing puppet master server and also updating and creating modules and pushing them to puppet clients.
• Application Deployments and Environment configuration using Ansible, Chef, Puppet.
• Built Continuous Integration environment Using Jenkins, Yum and Puppet.
• Administrate/support infrastructure services such as F5 load balancers.
• Deployed JAVA/J2EE applications through Tomcat Application servers
• Coded automated QA tests utilizing Perl and Shell scripting.
• Expertise DevOps Support/Monitoring.
• Installed application on AWS EC2 instances and configured the storage on S3 buckets.
• Coordinate with the team to design, develop, and maintain the installation of an application, upgrade, management and administration of scripts and utilities using Devops.
• Maintained and managed Ansible playbooks responsible for deploying Framework and other cloud tools. Worked on Git Flow for production Release.
• Experience in managing Ansible Playbooks with Ansible roles. Used file module in Ansible playbook to copy and remove files on remote systems. Created inventory in Ansible for automating the continuous deployment.
• Worked on developing couple of environments for QA testing and Devops testing which consists various Virtual Machines (VM) with RHEL.
• Coded in Perl scripts to support Apache httpd applications.
• Virtualized the servers using the Docker for the test environments and dev-environment . Running web apps in containers on Docker.
• Installing, configuring and troubleshooting Veritas cluster on Linux and AIX servers.
• Trouble shooting VVR(veritas volume replicator) related issues .
• IBM GPFS cluster configuration, Disk level Management and Filesystem management.
• GPFS - monitoring cluster services, starting and stopping cluster, filesystem management, RG management on Linux and AIX
• Server Installations, configurations, upgrades and migrations of Linux and AIX physical & Virtual servers.
• Configure and manage Middleware and web tools such as Tomcat apache, WebSphere, JBoss.
• Regular work involving building newLinux Physical and Virtual servers using kickstart and PXE boot.
• Experience in installing and managing virtualization technologies using KVM
• Frequently checked ESX server logs for any problems and troubleshoot whenever necessary.
• Installed, monitored and managed several virtual hosts on VMware ESXi using the software vSphere client.
• Created Virtual servers on VMware ESX/ESXi based host and installed OS on Guest Servers
• Monitored ESX server alarms and VM's alarms and acted on those incidents to resolve.
• Experienced Installing, Configuring and supporting VMWare ESX 3.4 and 4 versions.
• Involved in P2V & V2V Linux migrations on VMWare ESX 5 Cluster environment and performed physical and Storage vMotion and experience using tools like vCenter and vSphere.

Confidential

Unix/AIX System Administrator

Responsibilities:

• Experience installing, upgrading and configuring RedHat Linux 4.x, 5.x, 6.x using Kickstart Servers and Interactive Installation.
• Created New Virtual Machines, cloning VM, DRS and Snapshots.
• Installs Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/ Linux systems.
• Installs, configures and supports Apache on Linux production servers.
• Monitoring the autosys jobs and troubleshooting the issues.
• Working with Hands & Eyes and BreakFix Teams for replacing the faulty HardWare.
• Shell & Bash scripting experience.Implemented various automation scripts in Linux&AIX environment.
• Experience in creating Docker Images and in Kubernetes container platforms.
• Handson experience Veritas cluster administration on AIX/Linux/Solaris servers .
• Experience in configuring & implementing Authentication with Tivoli Access Manager WebSEAL
• Experience in installing configuring & troubleshooting websphere application server
• Restoring the backed up data at the event of any disaster. System recovery using mksysb tape.
• Provide daily status reportsby pulling the report using various tools(Nmon,BPPM & BL).
• Adding managed machines to HMC, HMC management and monitoring the event logs

Confidential

AIX/Linux System Administrator

Responsibilities:

• Troubleshooting all kinds of issues and assisting users
• Creating and maintain user, groups account on Unix servers
• Managing the VMware ESX and ESXi server 5.5, 5.1, 4.0.0 and 3.5.0 based on requirement.
• Install and configure the hardware agents on the ESX servers for Hardware monitoring and alerts (SNMP & Open Manager).
• Installed packages using YUM and RPM. Installation and Configuration of duel HMC’s
• Upgrading firmware of managed machines, devices and HMC.
• Hands-on experience of managing, troubleshooting IBM P4, P5, P6 and p7series hardware.
• Experience of creating standard and Virtual I/O client LPAR using HMC.
• Hands on experience on Advanced Power5 and Power6 Virtualization.
• Partitioning and management Virtual I/O servers and clients
• Expertise in creating and managing Dual Virtual I/O servers with SEA, NPIV and Link aggregation.
• Planning and implementation of backup/recovery using NIM/TSM/HPDB
• Configuration SAN(NetApp,Hitachi,EMC) on Linux/AIX servers and troubleshooting the issues.
• Knowledge of installing RHEL server from scratch using kick start and Pxe boot
• Deployment, configuration and administration of VMware VSphere 5.1 environments as well as Red Hat (5.xand 6.x) and Oracle Enterprise Linux (OEL) environment and installed required binaries and packages Responsible for migration of Microsoft Virtual Servers and VMware GSX servers to ESX platform
• Provided support to critical environments which are part of GxP & SOX.
• Implemented and administered VMware ESX 3.5, 4.x for running the Red hat Linux/Unix Servers on development ant test servers
• Diagnosing and resolving system related tasks in accordance with priorities setup in dealing with trouble tickets
• Experience is working with ticketing tools like Service Now & Remedy

Confidential

Unix System administrator

Responsibilities:

• File system create, modification of the File systems
• Checking for error report on servers.
• Adding / Removing Paging space.
• Performance monitoring using vmstat, iostat and topas
• Managing user Accounts and maintained system security
• Designing and managing disk space using AIX Logical Volume management
• Scheduling Backups - Task Schedulers (Cron, ) for backups, monitoring, file creating,Installation of patches and packages.
• Alongwith AIX 5x and 6x installation, up gradation, migration and troubleshooting.
• Experience in planning, installation, migration, upgrade OS (AIX, Solaris, Linux), deployment, Production Support.
• Installing and configuring various services like DNS, DHCP, NFS, Sendmail, Apache Web Server, Samba, SSH, http, RPM, package management.
• Experience in Veritas File system, Volume Manager, SAN (EMC & IBM Total Storage … Legato Backup, Veritas Netbackup, TSM and Capacity Planning / Performance and Tuning.
• Install, configure, manage, NIM server and installing clients using NIM recourses.
• Experience of installing and upgrading HACMP and configuring cluster with different RG
• Experience of installing and upgrading GPFS and configuring RAC Cluster
• Configuring and trouble shooting TCPIP network.
• Switch/Storage Migration, storage allocation, I/O performance tuning.