SUMMARY:

• System Administrator having good experience of RedHat Linux ( Confidential ), CentOS, Windows & AWS engineer.
• Designed, configured, and deployed Amazon Web Services (AWS) for a multitude of applications utilizing the AWS stack (Including EC2, Route53, S3, RDS, Cloud Formation, Cloud Watch, SQS, IAM), focusing on high - availability, fault tolerance, and auto-scaling.
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, LDAP, DNS, NFS, DHCP, FTP, SSH and SAMBA.
• Having good exposure for large-scale Linux deployment methodologies, kernel configuration, performance monitoring, and tuning.
• Experience in setting up the enterprise infrastructure on Amazon Web Services (AWS).
• Experience in set up and maintenance of Auto-Scaling AWS stacks.
• Networking communication skills and protocols such as TCP/IP, Telnet, ftp, SSH, rlogin
• Experience in Implementing and Supporting High Availability Cluster environments using Veritas Cluster and Linux Cluster services.
• Installed and configured Jenkins for Automating Deployments and providing a complete automation solution.
• Excellent skills in analyzing, designing, implementing and system integration, Knowledge on Switches, Routers, Firewalls, Intranet.
• Experience in Active Directory, GPOs, DNS, DHCP, File & Print Server, IIS, FTP.
• Performed migration of Virtual Machines and VM files using VMotion and Storage VMotion.
• Experience installing and updating packages from the network, Remote Repository, or Local File system.
• Good knowledge on Jenkins/JIRA/Docker/Run deck/Maven/Git/GitHub/Sonar cube Nexus and other DevOps tools configuration and working on issues if any in the configuration.
• Experience in Veritas NetBackup Management, scheduling the backup policies and loading the tapes for backup and unloading the tapes.
• Installed and configured the complete LAMP on the VMs and also have very good knowledge on Single Sign on Authentication with Siteminder and LDAP implementation on middle ware servers for multiple applications.
• Expertise in operations and maintenance support for AWS cloud resources which includes launching, maintaining and troubleshooting EC2 instances, S3 buckets, Virtual Private Clouds, Elastic Load Balancers (ELB) focusing on high-availability, fault tolerance, and auto-scaling.
• Experience in deploying compute and storage in Azure cloud, Creating and Managing Virtual Machines, and setting up communication Network Security Groups.
• Administered Linux servers for several functions include managing Apache webservers, mail server and firewalls in both development and production
• Experience in installing & configuring Solaris Zones, Containers & Branded Zones on Solaris 10. contributing in the development, documentation, and enforcement of processes and policies across departments

SKILL:

Operating Systems: Redhat Linux 5.x/6.x/7.x, IBM AIX, Solaris and Windows Operating Systems

Applications: Hawkeye, Puppet, Nagios,TSM,Web Logic Server, MQ.

Virtualization Products: VIO, Solaris Zones, VMware ESX 3, 3.5 and 4.0/4.1, Virtual center server, VMware converter enterprise, VMware Update Manager.

Server Hardware: Confidential DL 380, 580 G5/G7/G9, Confidential Superdome, Confidential Integrity Server Blade, Confidential Hardwares, Sun Hardwares, Brocade Switches, CISCO Nexus 2000 and 5000 Series Switches and Fabric Extenders

Admin Skills: Puppet, Icinga, Nagios, Solstice Disk suite, SVM, LVM, VCS, Symantec NetBackup, VMware Vsphere, PlateSpin, Admintool, IBM Tivoli, Remedy Web Logic, Grafana

Languages: Python, Shell, Bash, Korn, perl, C, C++

Servers: IBM IHS, Web Sphere Application Server, HTML, DHTML, XML and Tomcat

PROFESSIONAL SUMMARY:

Confidential, Charlotte, NC

Linux / UNIX Systems Administrator

Responsibilities:

• Installation and configuration of Red Hat Enterprise Linux ( Confidential ) Servers on Confidential, Confidential Hardware and VMware virtual environment.
• Working with firewall team to run firewall rules for server going to be built behind firewall and setup rules for server to be built in DMZ
• Configure and Support FC-SAN environment and LUN provisioning.
• Configuring and maintaining virtual server environment using VMware ESX/ESXi, VSphere, VCenter.
• Create, Manage and configure virtual machine(VM)s on VMware platform
• Experience in creating new virtual machine (VM) s via clone using existing VMs with guest operating system templates.
• Worked with backup team to backup Linux servers using Netbackup
• Configured Power Path for SAN devices and Performed Disk management with the help of LVM (Logical Volume Manager)
• Configured Red Hat Linux servers for SPLUNK installation and involved in splunk installation
• Created Confidential repositories and configured them on the servers and Installed packages with Confidential and Confidential for WebSphere application servers.
• Worked on updating kernel runtime parameters to increase the performance of servers
• Worked on Linux network (TCP) performance tuning with sysctl to increase the network performance.
• Worked on WebSphere application servers patching and migration (upgrade) of WebSphere application servers from previous version to newer version.
• Managed builds and Deployments, Created Ant Scripts to customize EAR, WAR and JAR files and the application is deployed on WebSphere server
• Installation and configuration of Nagios and Cacti on servers used for Network and performance monitoring.
• Worked with Red Hat Package Manager ( Confidential ) and Confidential
• Pushed RPMs across the Linux platform with the help ofBig Fix and Rebuild corrupted Confidential and LDAP database
• Written custom shell scripts (BASH) and built custom Confidential packages to add in post tasks when building new servers.
• Troubleshoot virtual tape drives with mt, tar commands
• Configuration and administration of DNS, LDAP, NFS, NIS, NIS+ and Send mail on Red Hat Linux servers
• Experience in deploying Java code using customized scripts and tools like Jenkins.
• Worked closely with application and database (oracle and DB2) teams
• Configured raw devices for database servers, installed and configured Oracle RAC on Red Hat servers
• Installed and configured active-active and active-passive Red Hat clusters for DB2 database
• Installed servers for Hadoop Cluster and performed Hadoop Admin activities in the environment
• Involved in P2V migrations using VMware converter and also involved in Storage and Physical VMotion activities
• Writing BASH scripts to automate the operating system tasks
• Experience working with automation tools like Puppet to push updates of configurations like sudo, ssh, sendmail and patches.
• Performance monitoring using sar, iostat, vmstat and mpstat on servers and also logged to cacti monitoring tool for graphical view.
• Worked extensively on Service Now ticketing system to perform the tasks/Incidents assigned to our team
• Worked intensely on post build process for ongoing projects
• Served as an escalation point to support team.
• Provided 24/7 level4 Linux on call production support on rotation basis. Responsible for maintaining security on Red Hat Linux.

Confidential, Woonsocket,RI

System Administrator

Responsibilities:

• Installation, configuration and upgrade of Confidential 6.x, 7.x, VMware 5.5, 6.0, 6.5, Windows 2008 R2, 2012 operating systems.
• Setting up AWS Cloudwatch and Custom Metrics to monitor AWS services.
• Implemented virtualization environment using VMware ESXi 6.5, 6.0, 5.5, ESXi Cluster, and vCenter Server.
• Migrated VMWare Virtual servers from one host group to new host group using vMotion..
• Configured Power Path for SAN devices and Performed Disk management with the help of LVM (Logical Volume Manager).
• Worked on AWS EC2 Cloud Instances using Amazon Images (Linux/Ubuntu) and configuring launched instances with respect to specific applications.
• Data migration from On-premises data center to the AWS Cloud
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual
• Center, using Virtual Center, ESX, creating VMs, using/building VM templates and customization files, and scheduling tasks.
• Installed deployment and system configuration automation by Puppet server.
• Experience on Host Profiles, Distributed Switch, DRS, VMotion, SV-Motion, Resource pools, permissions, Patches, Snapshots, Tools Upgrade, disk expansions, Templates, and many more.
• Performance monitoring using Sar, Iostat, VMstat and MPstat on servers and logged to cacti monitoring tool for graphical view.
• Administered the rights for the users and groups for virtual center access.
• Worked on AWS services such as Setting up new server (EC2) instances/services in AWS, configuring security groups, and setting up Elastic IP's, auto-scaling config, and Cloud Formation.
• Configured AWS S3 buckets so as Dev team to perform CRUD operations by using the AWS SDKs.
• Performing change operations, performing Dist, backup, Recovery, Upgrade.
• Installation, configuration and upgrade of Confidential 5.x, 6.x, IBM AIX 7.1, Confidential UX, VMware 4.x,5.0,5.1,5.5, Windows 2008 R2, 2012 operating systems.
• Implementation of RAID techniques and creation disk groups and volumes, using Veritas Volume Manager.
• Managing disks and file system using Veritas Volume Manager(VxVM). Used configuration management tool puppet to automate server configuration.
• Monitored the systems CPU, memory, IDE/SCSI disks, disk controllers, RAID, and network parameters using the tools NAGIOS monitoring system.
• Installed, Configured and managed ESX VM's guests with virtual center and VI client.
• Configured and managed Red hat satellite Network server, performing package management tasks and errata updates.
• Huge P2V Experience using VMware converter running different applications with Different Hardware.
• Scanning the newly assigned LUNs to the serves and assigning them to volumegroup and increasing the filesystem using redhat volume manager. Mounting & unmounting the netapp storage LUNs to the Redhat Linux servers and troubleshooting the issues encountered.

Confidential - Philadelphia, PA

Linux System Engineer

Responsibilities:

• Responsible for Installations, Configuration, Deployment, Administration, Maintenance and Troubleshooting Server.
• Created User, Groups and File Systems as per database requirements.
• Configured and troubleshooting NFS, NIS, NIS+, DNS, DHCP, FTP, LDAP, and Samba, Apache servers in Linux Servers.
• Performed Memory and Swap management to improve optimization and performance of the servers.
• Experience in installing, configuring the Volume/File system management using Veritas Volume Manager,
• Logical Volume Manager (LVM), Solaris Volume Manager (SVM), ZFS Filesystem Management and VERITAS File System.
• Experienced in User and Group administration and security issues.
• Execute Shell script in bash to create multiple users.
• Written python scripts and modules for patching and regular software installations in the environment.
• Performed upgrades of Packages and Patches in Solaris and Linux.
• Setup NFS file systems and shared them to clients.
• Troubleshooting and configuring NAS and NFS mount points.
• Troubleshooting network, application, and server related issues.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
• Creating volumes, LUNs and implementing different RAID levels on the same.
• Upgrade and Maintain VMware ESX / ESXi | and virtual sessions.
• Installation, configuration and management of Oracle11g 12c & MySQL database servers.
• Regular disk management like adding and replacing hard drives in existing servers and workstations.
• Creating partitions according to requirements, creating new file system or growing existing one over the hard drives and managing the file system.
• Patched different software using RedHat Package Manager and Confidential .
• Upgraded Linux Kernel using Confidential .
• Performed all LVM and file system tasks like creation of Logical volume and file system, mount a file system, modifying size of a Logical Volume and file system, Removing a file system.
• Install, configure and renewal SSL for site.
• Monitor performance and work with Team members and clients on resolving complex troubleshooting issues.

Environment: Red Hat Enterprise Linux 6/7, Logical Volume Manager, Veritas Volume Manager, apache and oracle database.

Confidential - Houston, TX

Linux System Administrator

Responsibilities:

• Monitor and analyze servers and resolve any problems, maintain systems reporting, tuning.
• Created users, manage user permissions, maintain User & File system quota on Linux servers.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using
• Logical Volume Manager (LVM) commands.
• Maintaining integrity of security with the use of group policies across domains.
• Supporting users through email, on call and troubleshooting.
• Maintaining inventory of all components including systems and other hardware.
• Performed User Account management, data backups, and users' login support.
• Maintaining user's data backup by creating particular user folder in File Server and applying security permission on folders.
• 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.
• Linux System & Middleware Administrator responsible for the day to day administration and administration of Confidential 5, 6/ CentOS which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server issues.
• •Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all of the clients/servers/storages/ etc
• Defined and Implemented CM and Release Management Processes, Policies and Procedures.
• Deploy and monitor scalable infrastructure o and configuration management using chef.
• •Branching methodologies, merging and tagging to facilitate defect/change management in conjunction within projects across the organization.
• Ensured proper version control, revision labels and baseline management procedures as part of the release process.
• Worked closely with Project Managers to understand a code/configuration release scope and how to confirm a release was successful.
• •Diagnose and resolve problems associated with DHCP, DNS, VPN, NFS, Tomcat and Apache.
• Build, manage, and continuously improved the build infrastructure for global software development
• Engineering teams including implementation of build scripts, continuous integration infrastructure
• Designed Ansible Playbooks to manage configurations and automate installation process.
• Coordinate/assist developers with establishing and applying appropriate branching, Continuous
• Delivery is being enabled through Deployment into several environments of Test, QA, Stress and Production using Nexus and Jenkins.
• Work closely with the Networks and Security Team in opening firewalls and DNS requests required for the infrastructure.
• Hands on experience in automating builds and deployment process using Shell scripting.
• Excellent quick learner and delivering solutions as an individual and as part of a team.
• Perform analytical, problem solving, communication as well as interpersonal skills. Also involved in documenting technical processes, and also finding out with Root Cause Analysis using Admin console and Bash scripts.
• Documented and edited the deployment procedures, customer facing and resolution issues on WIKI for our feature s.
• Worked in 24/7 Production Support on a bi-weekly basis.

Confidential

SAP Basis Consultant

Responsibilities:

• Involved in Installation and Configured NetWeaver 2004s, both ABAP & J2EE stacks.
• Involved in the installation and configuration of PI (NetWeaver 2004s).
• Worked on applying Support packages using SPAM for ABAP and JSPM for Java)
• Implement add-on and OSS notes in SAP system landscape.
• Resolved transport related issues and imported the transport requests into quality and production.
• Configured Single Sign on (SSO) between Portal and Backend System like SAP R/3, BW3.5, PI7
• Performed creation of New Clients (SCC4), client copies (local and Remote) (SCCL, SCC9), client
• Transport/export (SCC8) and transported the changes between the clients.
• Performed trouble shooting and monitoring activities through Solution Manager and generating keys for new installation
• Monitored and analyzed Performance problems using Workload Monitor ST03, monitor the system hourly using ST02, ST03(R/3 Buffer) and ST06 (operating System).
• Reviewed trace files at the database level, the operating system level, and the SAP R3 application level.
• Scheduled, monitored and performed all DB activities using BR* Tools
• Performed the DB02, DB01, ST04 and DB24 for Database Performance (tables and Indexes).
• Performed oracle database upgrade and installation in a team.
• Maintain and monitor RFC Connection between systems using SM59, SM58
• Schedule and monitored background jobs using SM36 & SM37.
• Worked on User role creation (single, derived and composite), modification and maintenance using PFCG, SU01, SU02, SU10

Environment: SAP R/3 4.7, ECC6.0, BW3.5/BI, PI, EP6.0, SAP NetWeaver 04S, Solution Manager 4.0, SRM 5.0 Oracle 10g, Confidential -UX