SUMMARY

• Over 9+ years of experience as a UNIX Administrator/Engineer with AIX, RHEL and SUSE Linux.
• Well experienced in Installation, administration, patches, up gradation, configuration, security issues, performance tuning and troubleshooting of RedHat Linux 5/6/7/8, Sun Solaris 8/9/10/11
• Proficient in automation and configuration management frameworks such as Puppet, Ansible and Chef.
• Plenteously worked on Continuous Integration and deployment using various CI Tools like Jenkins, Puppet, Chef, Hudson, Bamboo.
• Extensive Experience in Installation and Administration of RHEL and SUSE Linux Servers and Windows 2003,2007,2010,2012 Servers.
• Experience in Installing, upgrading and configuring Red HatLinux 5.x, 6.x, 7.x,8.x. using Kickstart Servers and Interactive Installation.
• Proficient in installation and configuration of WebSphere Applications on Red Hat Linux.
• Experience in setting up a PXE boot environment with Red Hat Linux.
• Experience with installation of packages, patches, maintenance & RPM updates on Red Hat Linux.
• LinuxKernel up gradation to add additional tune/capabilities toLinuxserver and optimizingLinuxServer.
• HardeningLinuxServer and Compiling, building and installing Apache Server from sources with minimum.
• Build highly available content distribution sites by using CI/CD tools like Chef, Ansible, Docker, Maven, Jenkins, Jira, Kubernetes, etc.
• Experience with database backups and Recovery strategies using RMAN Data pump (expdp, impdp) Export/Import and Transportable Tablespaces. Installation, kickstart and configuringMailServers, LDAP, Open LDAP, Sunone, SendMail andPostfix, Pop3, Imap.
• Knowledge of VMware virtualization, ESX/ESXi 4.x, 5.x, VMware vSphere, vCenter, vMotion and DRS.
• Hardware experience with IBM P Series (P5, P6, P7, P8), IBM X series, HP 9000, ProLiant DL series.
• Experience on AWS building out EC2 instances & working to set up IAM policies to integrate AD.
• Worked on Red hat Open Shift to improve application security by putting admin consoles on different Docker containers accessible only from unusual port numbers.
• Worked on OpenShift for container management and to enhance container platform multi - tenancy.
• Designed a patch process and wrote ansible playbooks for patching openshift -RHEL, atomic OS and also for bug fix for Openshift
• Experience installing, configuring, administrating, troubleshooting, tuning, security, backup/recovery and upgrading Linux(Red Hat & SuSE) in large environments.
• Experience performing LVM tasks like creating Physical volumes, Volume groups, Logical Volumes and file system.
• Managing and Monitoring the JVM performance by WebSphere Heap Size, garbage collection.
• Extensive experience in Shell scripting using Shell, Bash, Python.
• Experience in transferring files securely Via the Network tools, rsync, SCP, winscp, ftp.
• Experience installing and updating packages from the network, Remote Repository, or Local File system.
• Experienced in Cloud automation using AWS Cloud Formation templates to create custom sized VPC, subnets, NAT, EC2 instances, ELB and Security groups.
• Experienced in working with automation tools such as Ansible, puppet, and using the salt-stack.
• Deployment, Release Management and Cloud Implementations
• Datacenter Operations including hardware, software setup monitoring and troubleshooting.
• Good exposure to Storage Solutions like SAN, NAS.
• Application Deployments & Environment configuration using automation tools such as Puppet, Chef and Ansible using GIT as version control.
• Experience in DevOps for designing and architecting solutions for Software Configuration Management (Build, Release and Deployment Management, CI/CD, Application Environment Management) and Incident Management.
• Written Templates for AWS infrastructure as a code using Terraform to build staging and production environments.
• Experience in CI/CD Tools like Jenkins, Hudson, Bamboo, Chef and Puppet.
• Extensive experience with automated installation and system management technologies such as AIX NIM, Red Hat Kickstart.
• Building proof of concept for AWX (Ansible GUI) for multiple application builds.
• Performance monitoring using vmstat, iostat, svmon, sar, topas, nmon, top and glance.
• Experience in Shell scripting using Korn and bash.
• Experience in working with TCP/IP, DNS, NFS, NIS, SSH, SAMBA, LDAP, SFTP, SNMP, Send mail.
• The data management opportunities when you migrate workloads to Microsoft Azure.
• Excellent presentation, analytical, documentation and interpersonal communication skills.
• Experienced in 24X7 on-call for Unix/Linux support.

TECHNICAL SKILLS

Operating Systems: IBM AIX, RHEL, SUSE Linux, VMWare ESX 4/5/6

Versioning Tools: GIT, Subversion (SVN), Clear case, CVS, CA Harvest, Team Foundation Server (TFS)

Build Tools: VMware - VRO, AWS, Docker, Chef, Puppet, Ansible & Salt

CI/CD Tools: Jenkins

Hardware: IBM Power hardware, HP Superdome, IBM X series, HP DL series

Networking: TCP/IP, DNS, DHCP, SNMP, SMTP, NFS

RDBMS: DB2 9, 10, Oracle 10, 11, Informix

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

Programming Languages: Shell, BASH, Python Korn, Bash, C++, Java, EJB, VB, JavaScript.

Virtualization: VMware ESX6 server, VMware Workstation, VIO

PROFESSIONAL EXPERIENCE

Confidential, Boston - MA

Linux System administrator/Engineer

Responsibilities:

• Daily systems administration, resolving systems issues, supporting different groups/apps.
• User and Group administration, permissions and security issues.
• Implemented a POC to use theDevOpstools offered by AWS to create a CI/CD pipeline in AWS, using Code Pipeline,Opsworks, Code Build, Code Deploy and AWS S3/Bitbucket.
• VMware installation, configuration and monitored with virtual environments with ESX 5.x and 6.X and VCenter 5.x, 6.x
• Installations, configuration and administration of guest OS for different applications on Windows servers,Linuxand Solaris.
• Trouble shooting missing jsp pages and blank pages in hardware Load Balancer environment.
• RADIUS, Diameter, ftps, HTTPs SS7-Sigtran) and Networking Protocols (OSPF, IS- IS, BGP, MPLS, EIGRP, RIP, TCP/IP, OSI model, UDP, ARP).
• Installed high availability Big IP F5 LTM, GTM and ASM Load balancers to provide uninterrupted service to customers.
• Worked on building and deploying Java code through Jenkins.
• Worked closely with development team and SQA team for product releases.
• Installation, set-up, and management of build servers and management using Jenkins as Continuous Integration tool.
• Have good knowledge on integrating GIT into the continuous Integration (CI) environment.
• Developed scripts for build, deployment, maintenance and related tasks using Jenkins, Docker, Python and Bash
• Managed different infrastructure resources, like physical machines, VMs and Docker containers using Ansible
• Imported and managed multiple corporate applications in GIT.
• Managing DATA Center Inbound and outbound services. Working on Ansible automation tool.
• Good knowledge in customizing and compiling the Linux kernel according to the requirements also good in networking concepts and various communication protocols.
• Developed and maintained the continuous integration and deployment systems using Jenkins, ANT, Maven, Nexus, Ansible and Ruby.
• Automated configuration management and deployments using Ansible playbooks and Yaml for resource declaration. And creating roles and updating Playbooks to provision servers by using Ansible.
• Installing, Configured and management in Ansible Centralized Server and creating the playbooks to support various middleware application servers, and involved in configuring the Ansible tower as a configuration management tool to automate repetitive tasks
• Developed and supported the RHEL based infrastructure in the cloud environment.
• Supporting Local System Administrators to troubleshoot Configuration Management and Network issues.
• Automating the Build Infrastructure for deploying services in dockerized environment using Jenkins, Sonarqube, Gradle, Groovy, Job DSL, Docker and Splunk.
• Written the Ansible YAML scripts to configure the remote servers.
• Worked on Apache and Firewalls in both development and production.
• Worked on installation of Docker using Docker toolbox.
• Migrated the current Linux environment to AWS/RHEL Linux environment and used auto scaling feature and Involved in Remediation and patching of Unix/Linux Servers
• Installing Ansible Tower and using it to manage systems

Confidential, Deerfield - IL

Sr.System administrator

Responsibilities:

• Responsible for installation and maintenance on p 5 520,560,570 hardware with AIX 5.3, RHEL 3/4
• Installation of patches, packages on AIX, and RHEL.
• Installed/configured EMC Storage with 0, 1& 5 RAID configurations.
• Installed and maintained Security issues.
• Performed all System Administration tasks like cron jobs, installing packages, and patches.
• Diagnosing hardware/software problems and provide solutions.
• Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and Autofs File systems.
• Troubleshooting system, network and user issues.
• Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
• Used Chef for configuration management of hosted Instances within AWS Configuring and Networking of Virtual Private Cloud (VPC).
• Experience in installing Solaris 9/10/11, Linux RedHat/Fedora.
• Assisted in installation and recommendation of Nagios and SUSE Manager Tools
• Configured the servers and clients with Veritas Netbackup and monitoring Jobs & Activities.
• Extensively involved in infrastructureascode, execution plans, resource graph and change automation using Terraform.Managed AWS infrastructure as code using Terraform.
• Used Chef for configuration management of hosted Instances within AWS Configuring and Networking of Virtual Private Cloud (VPC).
• Performed backup, Archive and restore operations using Veritas Netbackup tool on servers.
• Day to day administration of Production, QA, Development and Test environment systems.
• Refresh/copy databases using UNIX commands & scripts (ART-tool using DD command son backend) every quarter on stage and development servers from respective DR of that Data Base.
• Re-fired Backups, modifying backup config file (implementing various changes advised by DBA) and solving various backup related issues on DBBS (Data base backup systems)
• Installation, Administration and configuration of LPAR’s with AIX 5L on p5 servers
• Experience of creating/installing standard LPAR & VIO client LPAR using HMC
• Installation, configuration and administration of IBM Web Sphere Application Server V4.0, on AIX along with DB2 UDB & IBM HTTP server with SSL for secure communication & providing technical support to users
• IBM RS/6000 SP System Software Maintenance AIX System Dump Generation and sending System Dump to AIX System Support Center.
• Network management of TCP/IP networks, IP address management.
• Performing upgrades of OS and applications.
• Tested products for evaluation purposes and documented for necessary changes required as per environment
• Korn & C shell scripting, mainly for scheduling jobs (CRONTAB)
• Inventory management for Software and Hardware.
• Disk Replacement Strategy on AIX.
• Logical Volume Management (LVM) of AIX.
• Performance Management & Tuning of AIX UNIX Kernel
• Security, users and groups administration
• Provided support by 24x7 shift rotation basis and pager support
• Monitored trouble ticket queue to attend user and system calls.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.

Confidential - Chicago, IL

Technology Lead

Responsibilities:

• Responsible for regular & enhanced Migration of AIX p5, p6, P7 series servers from one data center to another and migrations within the data center which also included using Live Partition Mobility.
• Creating business case reports for transitioning to Puppet Enterprise and using Puppet Orchestration.
• Responsible for Remote AIX Support With more than 1250 servers.
• Installed racked and configured IBM pseries p4/p5/p6/P7 (p595, p590, p570, p561, p560, p550, P770) for production, staging and test environments.
• Installation and administration of RHEL 4.0/5.0/6.0.
• Configured kickstart server and updating/applying patches to the servers using Red hat Satellite server.
• Installed Linux RedHat OS and Windows XP including all necessary maintenance patches and clusters.
• Created Kubernetes deployment, statefulsets, Network policy etc.
• Created Kubernetes dashboard, Network policies.
• Building/Maintaining Docker container clusters managed byKubernetes, Linux, Bash, GIT, Docker, on GCP. Utilized Kubernetes and Docker for the runtime environment of theCI/CDsystem to build, test deploy.
• Experience in Automating, Configuring, and deploying instances on AWS, Open stack and Microsoft Azure cloud environments and Data centers.
• Provisioned and administered AWS (EC2, ELB, Security, Storage S3, Route 53, VPC) cloud systems for development teams across the organization
• Worked on Performance tuning, Project planning, execution and Upgrade of the System from RHEL 5, 6 to Oracle Solaris 11.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Installation, configuration and administration of VMware.
• Automation of jobs through crontab and autosys.
• Installation of packages, patch management, volume management on RHEL/SUSE servers using YaST.
• Applied appropriate support packages/patches to maintain system integrity.
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Responsible for performance monitoring using AIX utilities and nmon, Site view.
• Performed HACMP failover and failback as per the user’s requirement.
• Experience of configuring 4 nodes cluster with multiple RG configuration.
• Extensive working experience on LVM. Creating VG, LV and FS.
• Upgrading and updating TL, APAR and patches on AIX 5.3 and 6.1.
• Perform User Account management, data backups, and users’ logon support.
• Installation and configuration of NIM master server and clients.
• Creating lppsource and SPOT for client on NIM server.
• Experience of upgrading and updating frame and device firmware using HMC
• Performed installation, periodic maintenance updates and applied APAR fixes.
• Installation and configuration of VIO Server 1.5,2.1 and AIX 5.3,6.1 on client LPAR’s for Power 595, 590 and Power6 servers.
• Upgrading TSM Client from version 5.2 to 5.5.
• Managing various scripts to start up and shutdown databases and SAP systems.
• Installed and configured Sudo for users to access the root privileges.
• Provided support by 24x7 shift rotation basis and pager support.

Confidential - Bentonville, AR

AIX/Linux Administrator

Responsibilities:

• Installed, configured and maintained several AIX and RHEL servers.
• Performed AIX migrations from 5.3 to 6.1 and 7.1.
• Setup weekly OS backups using mksysb.
• Installed the RHEL on Blades over the network.
• Performed Xen to VMware Migration on x3550 M5 servers.
• Performed troubleshooting and configuring pacemaker on xen host.
• Performed VSA to vSAN migration from ESXi 5.5 to ESXi 6.5 on VMware.
• Performed NAS Virtualization on x3650 M4 and x3650 M5 servers. Installed and configured SUSE OS.
• Performed network setting and troubleshooting with port configuration on cisco switches.
• Performed troubleshooting on x3650 M4, x3550 M5 Lenova and DL160 Gen 8 and Gen 9 HP Proliant server.
• Experience with web deployment technology specifically Linux/Nginx/Apache/Tomcat/Java.
• Configured the systems for TCP/IP Networking with the existing LAN, Setting up SSH and SCP.
• Configured Raid 0, Raid 5, Raid 6 on Lenova and HP Hardware.
• Performed imaging of virtual machine on SUSE through YAST.
• Installed and perform troubleshooting on DRBD and RDX storage on x3550, x3650 M4, x3650 M3, HP GEN 8, GEN9 and Dell servers.
• Worked with technician onsite for hardware replacement.
• Configured server through IMM/ILO and monitored health checks.
• Installed Windows servers running Active Directories & Exchange.
• Supported servers on VMware infrastructure.
• Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different server hosts.
• Set up Linux servers for iSCSI LUN boot instead of using local hard disks.
• Performed BMC Patrol Agent installations and upgrades to multiple servers including AIX, Linux and windows.
• Performed BMC Patrol remote agent upgrades
• Installing and configuring Apache and supporting them on Linux production servers.
• Used Nagios and database plug-ins to automate monitoring and setup alerts to notify WebOps team.
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.
• Provided break/fix incident support including hardware replacements.
• Responsible for setting up disaster recovery environment for AIX/RHEL servers and implemented all the DR procedures as per the guidelines.
• Created and maintained scripts for support of application and AIX/Linux automation
• Installed, configured and maintained several RHEL servers (6.x).
• Performed routine security patching of AIX and RHEL servers for known vulnerabilities.
• Provided support by 24x7 shift rotation basis and pager support.

Confidential

Unix Administrator

Responsibilities:

• Responsible for installation and maintenance on p 5 520,560,570 hardware with AIX 5.3, RHEL 3/4
• Installation of patches, packages on AIX, and RHEL.
• Installed/configured EMC Storage with 0, 1& 5 RAID configurations.
• Installed and maintained Security issues.
• Performed all System Administration tasks like cron jobs, installing packages, and patches.
• Diagnosing hardware/software problems and provide solutions.
• Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and Autofs File systems.
• Troubleshooting system, network and user issues.
• Adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
• Installation, Administration and configuration of LPAR’s with AIX 5L on p5 servers
• Experience of creating/installing standard LPAR & VIO client LPAR using HMC
• Installation, configuration and administration of IBM Web Sphere Application Server V4.0, on AIX along with DB2 UDB & IBM HTTP server with SSL for secure communication & providing technical support to users
• IBM RS/6000 SP System Software Maintenance AIX System Dump Generation and sending System Dump to AIX System Support Center.
• Network management of TCP/IP networks, IP address management.
• Performing upgrades of OS and applications.
• Tested products for evaluation purposes and documented for necessary changes required as per environment
• Korn & C shell scripting, mainly for scheduling jobs (CRONTAB)
• Inventory management for Software and Hardware.
• Disk Replacement Strategy on AIX.
• Logical Volume Management (LVM) of AIX.
• Performance Management & Tuning of AIX UNIX Kernel
• Security, users and groups administration
• Provided support by 24x7 shift rotation basis and pager support.