SUMMARY

• Over 9 years of IT experience as a System Administratorin LINUX (Red hat and SuSE), UNIX (Solaris, Confidential - UX, AIX) and Windows (2003/2008/2012 ) Operating System which includes 3+ years of experience in Cloud computing, AWS, DevOps and VMware administration.
• Experience in analysis, planning, designing, configuring, administering and maintenance of various types of UNIX ( Confidential -UX/AIX/Solaris) and LINUX (Red hat and SUSE).
• Experience in Server build using Jumpstart, Kick start, Ignite process and Manual installation.
• Experience in administering and configuring SSL, SSH,NFS, FTP, DNS, DHCP, NIS, NIS+, Mail Server and Samba Server in heterogeneous environment. Expertise in User & Group Security administration, backup & recovery.
• Experience in installation, configuration, file system management and RAID volume management through Logical Volume Manager ( Confidential -UX, Linux), Veritas Volume Manager (Solaris) and Solaris Volume Manager. Creation of Solaris Volume Manager and configuration of Soft Partitions.
• Experience in installation, configuration and maintenance of the Veritas Cluster Server, and Red hat Cluster Server for fail over, High Availability and redundancy purpose.
• Designing, configuring and managing public/private cloud infrastructures using Amazon Web Services (AWS) including but not limited to EC2, Elastic Load-balancers, Elastic Container Service (Docker Containers), Elastic Filesystem, Auto Scaling, Elastic Beanstalk, Cloud Front, S3, RDS, Glacier, Snowball, VPC, Route53, Cloud Watch, Cloud Trail, Cloud Formation, IAM, EMR, Elastic Search.
• Expertise creating complex IAM policies, Roles and user management for delegated administration within AWS. Maintaining user accounts (IAM), RDS, Route 53, SES and SNS services in AWS cloud.
• Experience in VMware. Installed and monitored Virtual environments with ESX/ESXi Servers and Virtual Center.
• Expertise in installation of Package and Patches in Solaris, Confidential -UX and AIX Servers.
• Experience in Package Management using Red Hat RPM/YUM.
• Good working experience with Red hat Satellite Server for upgrading and patching Linux Servers.
• Good working knowledge in registering different client servers to master Red hat Satellite Server.
• Experience in Multipathing using EMC Power path, Veritas and MPxIO.
• Experience in running commands and working on SUDO rules.
• Involved in 24x7 on-call production support and troubleshooting problems related to OS and Application Server with Tivoli monitoring tool and Remedy ticketing Systems.
• Advance level of experience in researching OS Issues, Applying Patches and Opening the Vendor Tickets.
• Worked on Devops environment with Jenkins, GitHub etc.
• Setting up data inAWSusingS3bucketand configuring instance backups toS3 bucket. Utilize S3 bucket and Glacier for storage and backup on AWS andsupported migration from legacy environment of Data Center to Amazon Cloud.
• Creating snapshots and AWS machine images (AMIs) of the instances for backup and creating clone instances.
• Worked on puppet master server configuration. Created manifests and modules.
• Hands-on experience working on CI/CD tool sets such as Jenkins, GIT, GIT HUB, JIRA, Bamboo, ANT, Maven.
• Experience in UNIX performance tuning using Solaris utilities -iostat, vmstat&nfsstat.
• Good working experience with Red hat Satellite Server for upgrading and patching Linux Servers.
• Good working knowledge registering different client servers to master Red hat Satellite Server.
• Knowledge in installing and configuring Application servers Apache, Web logic, Web sphere, Jboss and I planet.
• Good experience in Storage Area Network (SAN), EMC Symmetrix/ Clarriion, ECM, Confidential, Hitachi, NAS (Net App).
• Excellent interpersonal skills, independent problem-solving skills, the ability to work effectively in critical situations and hard working.

TECHNICAL SKILLS

Operating System: Red Hat Linux 7/6/5, SuSE (12/11/10), Solaris 11/10/9/8, Confidential -UX (11.x), IBM AIX (7.x/6.x/5.x), & Windows 2012/2008/2003

Hardware: Sun Enterprise E 5000/5500/6500 , Sun Fire 3800/4800/6800 , E10K/15 Series server, TSeries, MSeries Servers, Confidential -9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/ Confidential /DELL Blade Servers.

Third Party Tools: Veritas Volume Manager, Logical Volume Manager, RAID, Veritas Cluster, Red hat Cluster Server, Sun Cluster, HC Service Guard, VMware ESX

Web Application Server: Apache, Web Sphere, MQ, JBOSS.

Network/Naming Services: NIS, NFS, AutoFS, DNS, and DHCP.

Storage: SAN, NAS, DAS EMC Storage, Confidential and IBM Storage, HDS

Languages: UNIX Shell Scripting, Perl Scripting, HTML, Python

PROFESSIONAL EXPERIENCE

Confidential, VA

Infrastructure Analyst

Responsibilities:

• Working as a part of the Risk and Corporate Systems Technology (RCST) portfolio team and worked for the Hosting and Engineering Services team (HES) OOR physical execution team to build the Out of Region contingency servers.
• Working extensively with the assets in RCST to complete their OOR set up with all gates provided by the program.
• Set up meetings with the portfolio owners and teams to provide the next steps of the program and getting them ready with their assets.
• Involved in reportingWeekly ERM and Bi Weekly RCST OOR status updates to the management.
• Worked extensively in the Data Center Recovery Exercise (DCRE) for the RCST assets to complete their testing activities and deliverables.
• Working on delivering infra servers for applications identified to support the critical business processes.
• Involved in upgrading RHEL and AIX platforms and migrating hosts to new flash storage solutions.
• Efficiently delivered UCS (standalone) Linux, Solaris, AIX and Oracle SPARC platform servers by working on the changes to build the servers after getting the OS LUNs and DATA LUNs allocated for the builds and file system creations.
• Working with rsync and SRDF replication of servers for the data replication in the split mode for legacy EMC and EMC storage.
• Working extensively to spin virtual machines thru RAPID IT for critical assets applications and added SUDOERS, Net groups and AD groups.
• Analyzed Hopex document to build physical and virtual servers to gather information to build the Host layer and validate server type Web/App/DB Layer and work with network team to host the servers to get the Asset ID as registered in CMDB, Asset Name and Host IP address, environment and the data center location.
• Created changes for server builds for the new OOR contingency servers and validate the information with the solutions specs and push the changes for approvals from CAB to implement the changes as per schedule.
• Working extensively to review the changes for LE (Lower Environment) to get the changes pushed with accurate information to implement the changes during the maintenance window.
• Involved in updating the new Wiki website for the team by creating designs and updating the How To documents and necessary information and improving the share point website.
• Experienced with analyzing the FMD ( Confidential Demand Management) request from the client and project the Solutions specs with the inputs from the PMO to give an estimate for the server inventory and availability to build the servers.
• Verify and certify the solutions specs with an eyeball shakeout with the Fudge report of the counter production servers for the new OOR server builds.
• Day to day troubleshooting and support for the end users newly provisioned Linux servers.
• Installation, Configuration and Upgrade of Redhat Linux 6.x,7x Operating systems.
• Working on writing the jil files for Autosys jobs for creating, updating, deleting the box, cmd and file watcher jobs.
• Patch and Packageadministrationusing RPM/YUM to keep the servers updated with the patches and that implementing packages in Redhat Linux 6/7.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat) and tuned I/O, memory, Temperature of the equipment, HTTP, Mail, SSH, etc.
• Extensive use ofLogical Volume Manager(LVM), creating Volume Groups, Logical volumes and disk mirroring in RHEL.

Environment: Confidential Proliant- DL 380 G7, DL 580 G7, DELL Power Edge R series, IBM Power 570, p5 505 Express servers,Red-hat Linux 6.x, OEL 6.x, Windows 2012/2013, VMware Infrastructure 3.x 4.x,NFS, DNS, LDAP, Net App NAS, Apache,Oracle 10g, IBM DB2 9.x/10.x, SAN.

Confidential, IL

Linux/ UNIX Administrator

Responsibilities:

• Unix Analyst for the Unix to Linux migration effort, which involves a great deal of coordination work between the different Applications team, Firewall team, SAN team, Testing and user groups for the successful migration of the servers.
• Worked on gathering requirements for theUNIX to Linux migration effortfrom the OS perspective and also helped the Application owners, Server Type Owners to understand what the different services that are currently used by their Application in UNIX environment.
• Installation, configuration & Upgrade of the newly built Red hat Linux 5.x 6.x, andOracle Enterprise Linux5.x, 6.x systems.
• Involved in designing and deploying multitude applications utilizing the AWS stack (EC2, S3, Route53, IAM, RDS, Dynamo DB, SNS, SQS) focusing on fault tolerance, high-availability and auto-scaling in AWS Cloud Formation.
• Managing Amazon Web Services (AWS) infrastructure with automation and configuration tools such as Ansible, Puppet or custom build.
• Installed, configured and administration of Configuration management tools and Continuous Integration/Development tools such as Jenkins, Chef, Ansible and Docker.
• Experience in Branching, Merging, Tagging and maintaining the version across the environments using SCM tools like Subversion (SVN), GIT (GitHub, GitLab), Clear case, Harvest and VSS.
• Launching Amazon EC2 Cloud Instances using Amazon Web Services (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Defined AWS Security Groups, which acted as virtual firewalls that controlled the traffic, allowing to reach one or more AWS EC2 instances.
• Working on Multiple AWS instances, set the security groups, Elastic LoadBalancerand AMIs, Auto scaling to design fault tolerant,cost effective and highly available systems.
• Experience with AWS S3 services creating buckets, configuring buckets with permissions, logging, versioning, life Cycle and tagging.
• UtilizeAWSCLI to automate backups of ephemeral data-stores to S3 buckets, EBS and create AMIs for mission critical production servers as backups.
• Work with F5 load balancers to load balance and reverse proxy servers. Work with CloudFront, CloudTrail and Glacier.
• Utilize S3 bucket and Glacier for storage and backup on AWS.Configuring and Networking of Virtual Private Cloud (VPC).
• Configuring ElasticBeanstalk for auto-scaling, capacity provisioning, to application health monitoring and Configuring SNS notifications.
• Implemented Bash, Perl, and Python Scripting to automate day to day Job tasks
• Worked on Red hat Linux Servers migration from Physical to Virtual, Physical to Physical and Virtual to Virtual.
• Upgrading Red hat Linux Servers hardware and performing migrations.
• Worked on the Monitoring and analyzing system performance using Tuned, Ktune and Application profilers like sytemtap, valgrind and perf on the RHEL systems.
• Workedon improving the performanceof the migrated Linux systems bytuning Kernel Parameters.
• Experience in migration of servers running different application like Databases and Middle ware applications from HPUX, Solaris to RHEL and oracle enterprise Linux.
• Preventative and proactive system monitoring functions and real-time responses encompassing: Systems Administration, OS Level SAN Administration, Backup and Restore and Security Remediation.
• Configured and maintained servers using VMware ESXi. Experience in working with adding new Disks to the VM from the Host group.
• Wrote Python Scripts to monitor a variety of Admin Services
• Extensive use ofLogical Volume Manager(LVM), creating Volume Groups, Logical volumes and disk mirroring in RHEL and OEL.
• Experience in Setting up and configuring Install Server, Configuration Server and Boot Server for Kickstart process & performed Kickstart to install OS.
• Created users, manage user permissions, maintain User & File System quota on Red hat Linux
• Installation, Upgrade and Management of packages through RPM and dependency packages.
• Building RPMs for applications as per requirement.
• Installation and configuration ofApache,Web sphere,MQSeries, Oracle & IBM Databaseson the RHEL and OEL Linux Systems.
• Wrote UNIX shell scripts for automated installations, to extract logs using Bash & Python
• Using Wire shark Capture and analyze TCP, UDP, IP Packets.
• Experience in implementing high availability clusters usingRed hat Cluster Solution(RHCS) with EXT3 and EXT4 file systems.
• Experience in Data Transfer of large amounts of Data sets required for migration. Data in few servers are in close to 100TB.
• Extensive use ofRsyncutility for customized data migration from UNIX to Linux systems.
• Day to day troubleshooting and support for the end users newly migrated to Linux.
• Experience in migrating UNIX servers with High availability solutions such as HACMP and Confidential service Guard to the Linux servers with High availability solution from Red hat (RHCS).
• Performance monitoring and tuning of Linux servers.

Environment: Confidential Proliant-DL 360 G7, DL 380 G6, DL 380 G7, DL 580 G7, DELL Power Edge R series, IBM Power 570, p5 505 Express servers,Red-hat Linux 5.x 6.x, OEL 6.x, Windows 2000/2003, VMware Infrastructure 3.x 4.x,NFS, DNS, LDAP, Net App NAS, Apache,Oracle 10g, IBM DB2 9.x/10.x, SAN.

Confidential, MI

Hosting / Solutions Engineer

Responsibilities:

• Installing Configuration and maintenance of Solaris 9/10/11, Red hat Linux 5/6, Confidential -UX 11.x and IBM AIX operating systems.
• Worked on configurations and installations Solaris and Linux servers using Custom Jumpstart, and Kick start.
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in Linux and Confidential -UX. Creating the volumes and creating the file systems (UFS, JFS, EXT and VXFS).
• Implementation of RAID0, 1 and 0+1 levels techniques and the creation of Disk groups and volumes, plex using Veritas Volume manager.
• Installing Veritas Cluster Server 5.0, testing cluster failover, starting DB2 on nodes automatically after failover.
• Research information for the Configuration Items (CI)s being decommissioned on the standard “EDS-Research Tools” (ADMS, Webwerks, Star Team, CVS) and coordinate with SAto determine interfaces, zones, DNS, cronjobs, ID’s, control tool, domains, cluster or instances to be decommissioned.
• CreatingSummary of Services (SOS)to define project scope that will be implemented by Engineering and Project Managers to meet the deliverables in scope for GSC 36A projects.
• Installed and configured VMWare virtual servers and deployed operating system on Guests.
• RPM and YUM package installations, patch and other server management.
• Submit a request to the NOtA - Network Order Management System to have a Network Engineer engaged to identify, decommission and pull any network cables for the servers in scope for decommission.
• Provide the server hostnames, IP addresses, network cables, switch sets (Ports, VLans), associated to the servers to the network team for decommission.
• Engage the Firewall /Load balancer Engineer to verify rules (VIPs, Pools, NATs, routes) and write necessary work order to remove.
• Modified Kernel parameters and rebuilt kernel on Linux, Confidential -UX environment.
• Administer, maintain and troubleshoot EMC CLARiiON arrays by creating volumes, LUNs and implementing different RAID levels. Configured and created snapshots of clones of LUNs using EMC Snap View.
• Extensive experience with working on Solaris Volume Manager (SVM), creating Meta devices, soft Partitions, mirroring the devices. Expertise in managing ZFS in Solaris Containers.
• Extensive experience in configuring Global File System(GFS) and Zeta Byte File System(ZFS)
• Scheduling of automatic repetitive Jobs with Shell and Perl scripting with Crontab.
• Responsible for change management, troubleshooting and resolution of server issues for end users support.
• Designing Firewall rules for new servers to enable communication with application, DB2 servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat) and tuned I/O, memory, Temperature of the equipment, HTTP, Mail, SSH, etc.

Environment: Solaris 10/9/8, Windows XP, Linux RHEL 5, Confidential -UX 11/11i, AIX 5.3L, Windows 2000/2003, Sun Fire 6800/E6500Server, E10K/15K/25K, T2000, Sun Fire 440, 480, 490, 880, 1280, X2250, EMC, IBM RS/6000, IBM Power570, p5 505 Express servers, Apache 2.x, 3.x, Veritas Volume Manager 5.0, Veritas Netback up 6.0.

Confidential, IL

Deployment Engineer/ UNIX Administrator

Responsibilities:

• Installation, Configuration & Upgrade ofLinux,Solaris, AIX, Confidential -UXand Windows operating system.
• Install, upgrade and configure infrastructure software (JBoss, Tomcat, MySQL, etc.) and maintained Apache Web Server.
• Experience in creation of environments on virtual machines to be handed over to development and QA teams. Created containers and deployed applications in JBOSS on different containers.
• Executed builds and performed deployments in various environments.
• Experience executing database scripts and troubleshooting as needed.
• Performed deployment updates to QA, Stress, Integration and Production environments.
• Remotely interacted to troubleshoot the production website and participated in site outage resolution.
• Created branches in subversion systems.
• Maintain and troubleshoot switch and application network connectivity, UNIX infrastructure, including SSL,DNS, DHCP, SSH, LAN and TCP/IP issues, accounts and security for all application servers.
• Creating new file system, managing & checking data consistency of the file system.
• Performed Backup management through regular ufsdump, ufsrestore, fbackup, F-Recovery and DLT tape drives.
• Written Scripts for automating jobs, performing deployment builds and tested the code.
• Maintaining CPU & Memory utilization of Servers reports on the WEB.
• Prepared documentation of understanding, deployment instructions for production releases and updated wiki.intra.sears with operation procedures.
• Participation in change control activities and involved in Memory sizing of different applications.
• Complete periodic checks of production and development systems;CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc.
• Expertise in Performance Monitoring and Performance Tuning using top, prstat, SAR, vmstat, ps, iostat etc.
• Experience in User and group administration, management and archiving.
• Proactive maintenance on systems by timely upgrading Patches to the systems and Scheduling of batch jobs, Quartz jobs andcronjobs.
• Involved in 24/7 high availability on pager rotation basis and coordinated efforts with the offshore team.

Environment: Solaris 8/9/10, Linux RHEL 4/5, Sun Enterprise Server, Sun Fire 6800/ E6500/ E4500 & E3500, Blade Servers. JBoss, Apache 2.x, 3.x