SUMMARY

• 9+ years of experience in Linux System Administrator/DevOps Engineer with sound experience in Unix/Linux, VMware, AWS/Azure Cloud, Containerization, Version Control Systems and Configuration Management Tools.
• An accomplished Systems administrator with extensive experience in UNIX System Administration in Red Hat Linux (RHEL 5/6/7), AIX, Solaris, Centrify, SUSE 10/11/12, CentOS 5/6/7 and DevOps technologies.
• Experienced in working with SAN hardware from vendors including EMC Symmetrix and Clarion, Hitachi, and Sun Storage Tek.
• Experience in LPAR, having Knowledge on Dynamic LPAR and different Regatta servers like p630, p650, p670 and p690.
• Expertise in Installation and configuration of HACMP v 5.1/5.2/5.3 and migration of HACMP 4.3.1/4.5 to 5.1 using node - by-node migration without changing the cluster setup.
• Experience in building CI/CD pipelines for application platforms and micro-services both on-premises cloud using AWS and Ansible.
• Supported WebSphere Application Server, IBM HTTP/ Apache Web Servers in AIX environment for various projects.
• Experienced in installing LAMP Linux, Apache, MySQL, and PHP for different applications.
• Expert in Installing, configuring and maintaining DNS, NIS, NIS, NFS, DHCP, TCP/IP.
• Proficiency in VMWare. Installation and monitoring Virtual environments with ESX Servers and Virtual Center.
• Expertise in implementation and designing of disaster backup and recovery plan.
• Expertise in Networking TCP/IP, Ethernet, FTP, NFS, NIS, DNS, DHCP and RAID levels.
• Experienced in working with different teams such as Network Eng., Database team and application teams to resolve the issues and provide Customer Satisfaction.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Experienced in Installation and Configuration Nginx and Apache Tomcat on Linux and UNIX, Windows platforms.
• Configuring, Automating and Deploying Chef, Puppet and Ansible for configuration management to existing Infrastructure.
• Expert in automated installation, software distribution and production deployment using System Imager.
• Expertise in automating Grafana dashboard creation with Ansible and generating Reports.
• Working experienced with Blade Logic Infrastructure on Linux OS.
• Extensive experience in Installation, configuration, and administration of AIX 4.3/5.1/5.2/5.3 /6.1 , Red Hat Linux 8/9, RHEL 3.x/4.x/5.x, Red Hat Satellite 6, OEL 4/5.x and SUSE Linux 10.x/11 and day-to-day system admin tasks.
• Configuring Audits Reports.
• Experience in assisting with the administration of Windows Server 2003/2008/2012 active directory and domains utilizing Power Shell Scripts.
• Expert in Kickstart, Jumpstart and NIM installation methods for RHEL and IBM-AIX
• Excellent skills in analyzing, designing, implementing and system integration, Knowledge on Switches, Routers, Firewalls.
• Deploy and monitor scalable infrastructure on Amazon web services (AWS) & configuration management using Ansible.
• Configured and Troubleshooted TCP/IP network services.
• Performed server consolidation and virtualization using HPSA vSphere ESX 3.5/4/4.1 created VM's on Virtual Center server and installed guest OS using Virtual Infrastructure client.
• Created and maintained user accounts, profiles, security rights, disk space and process monitoring.
• Installation of guest OS, configuration and patch application on hosts using Tivoli Provisioning Manager TPM.
• Implemented day-to-day tasks in Red Hat Linux including upgrading RPM's, Kernel tuning, HBA Driver, configure SAN's, Multipathing and Logical Volume Manager LVM
• Experience with Windows and Unix/Linux System Administration and Support of various applications on a multi-servers environment, I have specialized in working with the command line interface in Windows and UNIX/Linux systems.
• Experienced with using Oracle RAC for clustering and high availability in Oracle database environments.
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools.
• Expert in managing a cluster of servers using Red Hat GFS.
• Expert in Installing, configuring, and maintaining Apache/tomcat, samba send mail, Web Sphere Application Servers.
• Installing, upgrading, and configuring windows and Linux servers.
• Implemented OpenSSH based security for the RH-4.
• Experience in Installing and configuring Wireless network using SSL and RADIUS authentication. Set up Linux firewall router to increase network protection.
• Excellent scripting skills in UNIX Shell, Perl, and python.

TECHNICAL SKILLS

Operating Systems: Windows, UNIX, LINUX (RHEL 5/6/7, Ubuntu 12.04/16.04/18.04 , OEL 5/6/7).

Hardware and Network: DELL (PowerEdge), HP (ProLiant G7 & G8), Dell Power Edge Servers, Cisco UCS, DHCP, DNS, SNMP, SMTP, Ethernet, NFS.

Backup and Recovery tools: Dump, Restore, Tar, CPIO, Resync, Kernel re-compilation & Patches, updates.

Virtualization: VMware ESX 5.0/5.5/6.0, VMware ESXi 5.0/5.5/6.0 VMware vCenter, vSphere Client, VMware VDI, VMware Thin AppRDBMS Oracle, MY-SQL, PostgreSQL, Mango DB and MS SQL Server

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

Scripting: Bash Scripting, Python and Ruby.

DevOps Tools Others: Puppet, Ansible, Chef, Gitlab & Gitlab Runners, GitHub, Jenkins, Docker and K8 s

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

Sr Linux Administrator/DevOps Engineer

Responsibilities:

• Administered, maintained Red Hat Enterprise Linux 5.10, 4.8, Ubuntu troubleshooting hardware, operating system, applications network problems and performance issues.
• Installed, configured, and administered AIX 5.1, 5.2, 5.3, Ubuntu Linux HACMP
• Installation of Red Hat Satellite 6 Server
• Worked with KVM Hypervisor to install, configure, and maintain Red Hat Linux.
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning
• Performed Servers consolidation and virtualization using HPSA virtual infrastructure, VMware ESX, Virtual Center, VM tools.
• Experience in Implementation Apache, Tomcat 5.5 for the Java Servlet and Java Server Pages technologies.
• Administered the UNIX/Linux System for clustered HP Servers with fiber attached SAN storage.
• Maintained troubleshooted SAN and Fiber card related errors on UNIX.
• Discovered and attached LUNS provided by the Storage team to the required Unix/Linux Servers.
• Maintained Troubleshooted Storage Disks from IBM and EMC Disk arrays.
• Created disk pools and configured shared virtual disks using Symmetrix Management Console.
• Installing, maintaining, upgrading, and supporting red hat Linux systems w/ Oracle 10G RAC with Cluster Ready Services CRS and Sybase database.
• Installed and configured LAMP Linux, Apache, MySQL, and PHP for different applications.
• Understand the existing network topology to understand the F5 load balancer routing policies, subnet firewall configuration, DNS entries etc. to replicate in the new environment.
• Provided L2 Production support on entire IDM System, including user life cycle management of User creation, modification and termination.
• Experience working on public cloud - AWS, Azure, GCP, and/or experience working on virtualization technologies.
• Hands-on experience maintaining deployment automation with tools such as Puppet, Chef, or Ansible
• Experience working with Ansible, Docker, NGINX
• IaaS experience (vSphere / ESXi / AWS / OpenStack / Azure / GCP)
• Cloud platform experience with multiple services on AWS, GCP or Azure
• Experience with Cloud Service Providers such as Amazon AWS, Microsoft Azure, and Google GCP
• Installed WebLogic 8.1 with SP5 Server and configured Domains, Admin, and managed servers for applications to be deployed.
• Installation, Configuration and administration of DNS, LDAP, NFS, NIS, NIS and Send mail on RedHat Linux/Debian Servers.
• Installed, Configured and Maintained Active Directory Windows Server 2008
• Migration from SUSE Linux to Ubuntu Linux
• Developed automation scripting in Python core using Puppet to deploy and manage Java applications across Linux servers.
• Diagnosing failed disk drives using shell scripting for automated tasks.
• Logged events from forced crash dumps and troubleshooted server issues.
• Troubleshooting production servers with IPMI tool to connect over SOL.
• Configured yum repository server for installing packages from a centralized server.
• Installation of Azure VMs on Linux system
• Scaling complex SaaS for web services
• Configured Active Directory Windows Server 2008
• Installed Check Point Firewall
• Install and configure DHCP, DNS, web Apache, IIS, mail SMTP, IMAP, POP3, and file servers on AIX and Red Hat Enterprise Linux servers
• Installing and setting up Oracle9i on Red Hat Linux for the development team
• Installed Web Logic 9i with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Wrote shell, Perl, python, ruby scripts to automate daily repetitive activities.
• Provided production support of Apache and JBoss including installation, configuration, and management and troubleshooting.
• Implemented virtualization using HPSA in Red Hat Linux on HP - G7, G8 and IBM-z/VM series.
• Implemented day-to-day tasks in RHEL that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multi pathing and LVM file system.
• Linux kernel, memory upgrades and swaps area and performed Red Hat Linux Kick start installations.
• Hardware Maintenance and System Administration of existing RS 6000 running AIX 40 systems in Network
• Created users, manage user permissions, maintain User File System quota on Red Hat Enterprise Linux and AIX.
• Responsible for implementing monitoring solutions in Ansible, Terraform, Docker, and Jenkins.
• Experience with cloud computing technologies (GCP/AWS), including tools such as Terraform
• Defined/setup network protocols, Network File Services NFS, and Network Information Services NIS in Red Hat Linux and AIX systems

Environment: Load Balancers, Chef, Ansible, Shell, Python, VueJS, Linux, JIRA React Native, PCF My SQL, Jenkins, Apache Tomcat 7.x, Docker, Kubernetes (AWS ECS, AWS EKS)s Virtualization, Kubernetes, Configured plug-ins for Apache HTTP server 2.4, Nginx, Airflow, LDAP, JDK1.7, XML, SVN, Git, Window

Confidential, Chicago, IL

Sr. Linux DevOps Engineer

Responsibilities:

• Updating the infrastructure system with puppet environment.
• Some of the nodes have No puppet installed and some have version 3.x installed, so upgrading from 3.x to 5.x
• Installation, Configuration and administration of DNS, LDAP, NFS, NIS, NIS and Send mail on RedHat Linux/Debian Servers.
• Installed, Configured and Maintained Active Directory Windows Server 2008
• Managing and scaling complex SaaS for web services
• Experience with using Centrify.
• Applied the Clustering Topology that meets High Availability and Failover requirement for performance and functionality.
• Configured MS SCOM Monitoring of Windows Applications and Linux OSes Setup co-location space, procurement of hardware, racking and cabling of computer hardware and equipment.
• Managing Amazon Web Services (AWS) infrastructure with automation and configuration management tools such as Ansible, Puppet, or custom-built designing cloud-hosted solutions, specific AWS product suite experience.
• Configured, managed ESX VM's with virtual center and VI client.
• Performance monitoring using Sar, Io stat, Vmstat and MP Statom servers and logged to muntin monitoring tool for graphical view.
• Migration from SUSE Linux to Ubuntu Linux.
• Developed automation scripting in Python core using Puppet to deploy and manage Java applications across Linux servers.
• Windows Server Enterprise 2012 R2, Window Enterprise Server 2008R2 Windows 2003R2 server.
• Diagnosing failed disk drives using shell scripting for automated tasks.
• Logged events from forced crash dumps and troubleshooted server issues.
• Troubleshooting production servers with IPMI tool to connect over SOL.
• Configured yum repository server for installing packages from a centralized server.
• Installed Fuse to mount the keys on every Debian Production Server for password-less authentication.
• Installed and configured DCHP server to give IP leases to production servers.
• Troubleshooting the modules, if there is any break in puppet files and fixing it and finding the RCA for that.
• Working on open-source puppet for our migration and module development.
• Experienced Using GitHub as our version control tool.
• Writing manifests files upon the requirement.
• Understand the existing network topology to understand the F5 load balancer routing policies, subnet firewall configuration, DNS entries etc. to replicate in the new environment.
• Optimizing DNS on Linux Bind servers and Windows DNS servers.
• Provided L2 Production support on entire IDM System, including user life cycle management of User creation, modification and termination.
• Experience with Configuration Management Tools (Puppet, Ansible, Chef).
• Experienced using Splunk as our monitoring tool to analyze the performance metrics, scalability etc.
• Management of RedHat Linux user accounts, groups, directories and file permissions.
• Created Audit Report using au report.
• Configured, Maintained OVM
• Used Veritas Cluster Services for detailed connection between Linux and Windows.
• Configured, Maintained, Installed OEL
• Installation, Configuration, and administration of VMWARE IBM Blade servers
• Migrated VMWARE VMs to AWS and Managed Services like EC2, S3 Bucket, Route53, ELB, EBS Etc. with Ansible.
• Experience working with production servers at multiple data centers.
• Installed packages with yum and rpm.
• Documented strongly the steps involved for data migration on production servers and testing procedures before the migration.
• Worked with the windows team to make schedules for server patching.
• Expertise in Ansible Playbooks, Ansible Roles, Variables and Advanced Execution.
• Provide the support of building the server, patching, user administration tasks, deployment, software installation, performance tuning and troubleshooting and KVM.
• Installation and configuration of PostgreSQL database on RedHat/Debian Servers.
• Used Ansible and Terraform as DevOps tools and Git as SCM tool to automate the deployment of infrastructure.
• Performed Disk management with the help of LVM Logical Volume Manager.
• Configuration and Administration of Apache Web Server and SSL.
• Configure open-ssl and generated self-signed keys for internal use.
• Experience with NoSQL MongoDB.
• Used Veritas Cluster Services for detailed connection between Linux and Windows.
• Automated CI/CD pipeline infrastructure and deployed micro services applications using Ansible, Docker and Jenkins.
• Password-less setup and agent-forwarding done for SSH login using sash-keygen tool.
• Created and maintained network users, user environment, directories, and security.
• Provided 24/7 on call support on Linux Production Servers. Responsible for maintaining security on Red Hat Linux.

Environment: Debian and Red hat Linux and SUSE Linux, Ubuntu Linux, KVM, VMWAREIBM blade servers, BladeLogic, IBM DS8300 SAN, HP UX, WebSphere 5.x/6.x, Apache 1.2/1.3/2.x, Logical Volume Manager, Veritas NetBackup 5.x/6.0, SAN Multipathing MPIO, HDLM, Power path, VM ESX 3.x/2.x, RHEL 5.x/4.x and Windows Server Environment, Windows, Python, Puppet.

Confidential, Cincinnati, OH

Linux Administrator

Responsibilities:

• Administered, maintained Red Hat Enterprise Linux 5.10, 4.8, Ubuntu troubleshooting hardware, operating system, applications network problems and performance issues.
• Installed, configured, and administered AIX 5.1, 5.2, 5.3, Ubuntu Linux HACMP
• Provided various levels of support in a heterogeneous Linux/Solaris/AIX/Windows/VMware environment.
• Leveraged Ansible and Ansible Tower by creating multiple playbooks to manage Web Apps, OS Files, DB, Commands, Mount Points, and Packages.
• Installation of Red Hat Satellite 6 Server.
• Setup of NFS and Samba file sharing services on Linux and Windows environments.
• Worked with KVM Hypervisor to install, configure, and maintain Red Hat Linux.
• Build Ansible playbooks from scratch and deploy to VMware guest and AWS instances in production and QA environments.
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning.
• Performed Servers consolidation and virtualization using HPSA virtual infrastructure, VMware ESX, Virtual.
• Linux kernel, memory upgrades and swaps area and performed Red Hat Linux Kick start installations.
• Used Chef and Ansible to configure and modify Application and Server deployment and builds.
• Installed and configured monitoring tools Nagios for monitoring the network bandwidth and the hard drives status. Installed and configured of SAMBA utility software for sharing files with Windows hosts.
• Hardware Maintenance and System Administration of existing RS 6000 running AIX 40 systems in Network
• Created users, manage user permissions, maintain User File System quota on Red Hat Enterprise Linux and AIX.
• Configured Ansible to manage AWS environments and automate the build process for core AMIs used by all application deployments including Autoscaling, and CloudFormation scripts.
• Experience in Migration of HACMP 4.3.1,4.5 to HACMP 5.1 using Node-by-Node migration without changing the cluster setup.
• Configure Windows Multipathing policies to configure multipath Ed LUNs from NetApp FAS Solutions 6240, 6080’s, 3270’s, 3070’s
• Configuring and Administering NFS, DNS, CIFS, FTP, SFTP, robocopy and LDAP on Windows Server 2003/2008/2012 server environment.
• Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production
• Manage systems using remote consoles like ILO for HP Hardware.
• Instituted configuration and systems management via Ansible; inventoried and standardized system configurations and package installations; trained other team members in the use of Git and Ansible.
• Setup network printers and installed client/server applications.
• Defined/setup network protocols, Network File Services NFS, and Network Information Services NIS in Red Hat Linux and AIX systems
• Regular maintenance of VERITAS Cluster, MC/Service guard Packages and load balancing
• Wrote Scripts for automating and testing the code using Perl, Korn.
• Responsible for quickly troubleshooting high priority issues for end client, related to Windows OS and HP Blade servers in full-fledged production network.
• Built Ansible playbook to deploy web servers on both VMware and AWS infrastructure.
• Install and configure DHCP, DNS, web Apache, IIS, mail SMTP, IMAP, POP3, and file servers on AIX and Red Hat Enterprise Linux servers
• Installing and setting up Oracle9i on Red Hat Linux for the development team
• Installed Web Logic 9i with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Worked with Ansible playbooks for virtual and physical instance provisioning, configuration management, patching and software deployment.
• Experience using BMC blade logic client automation Tool.
• Used Puppet for Automation and system monitoring tool.
• Wrote shell, Perl, python, ruby scripts to automate daily repetitive activities.
• Provided production support of Apache and JBoss including installation, configuration, and management and troubleshooting.
• Configure Windows NOS to enable resource sharing, Build and configure VMware host and guess Systems on Oracle Virtual Box as well as bridging the Guess VMware systems to communicate with other physical LAN Systems.
• Implemented virtualization using HPSA in Red Hat Linux on HP - G7, G8 and IBM-z/VM series.
• Implemented day-to-day tasks in RHEL that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multi pathing and LVM file system.
• Experience in designing and implementing configuration management system using Ansible.
• Performed procedures to automate various systems and tasks (e.g. automating code builds and deployments) through Git, Docker, Ansible.
• Experience with Audits in RHEL.
• Experience with using Centrify.
• Deployed OEL
• Installation, Configured OVM
• Experience in IBM cloud Services and AWS for cloud computing.
• Installation of Azure VMs on Linux system
• Scaling complex SaaS for web services
• Configured Active Directory Windows Server 2008
• Installed Check Point Firewall
• Network trouble shooting using 'netstat', 'ifconfig' and 'TCP dump' etc.
• Administration and Configuration in VERITAS Volume Manager/VERITAS File System
• 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.

Environment: Red Hat Enterprise Linux 4.8,5.10, Ubuntu, VERITAS Cluster Server, Veritas Volume Manager, Oracle 11G, UX, IBM AIX, SAN, EMC VNX HP ProLiant DL 380,560 WebLogic, Oracle RAC/ASM, MS Windows 2003, 2008, 2012 server, IBM and AWS, Python, Puppet.

Confidential, Memphis, TN

Unix/Linux Administrator

Responsibilities:

• Installation, configuration and OS upgrades on AIX 5.3 Red hat Linux 6 and SUSE Linux 11.
• Installation, configuration, and maintenance of Sun Solaris 9, 10 servers.
• Configuring Kickstart/Autogas Servers and booting the images using PXE in Red hat Linux RHEL SLES.
• Installation of Red Hat Satellite 5 Server
• Delivering customer on-boarding solutions based on Ansible to ensure customer adoption of solutions and products.
• Use Ansible to send remote commands to systems and run yum update.
• Delivered webinars and presentations based on automation solutions based on Ansible.
• Administered the UNIX/Linux System for clustered HP Servers with fiber attached SAN storage.
• Maintained troubleshooted SAN and Fiber card related errors on UNIX.
• Implemented NIS and NFS for administrative and project requirements on AIX and Linux platforms.
• Worked closely with database administration staff to ensure optimal performance of databases and maintain development applications and databases.
• Maintained Active Directory Windows Server 2008
• Installed OS by using NIM method for AIX.
• Experience in AWS, Azure
• Experience in IBM cloud Services using SAAS.
• Installation of patches and other software packages on AIX and Linux Servers.
• Administration and Troubleshooting AIX servers running business critical application WebLogic applications.
• Discovered and attached LUNS provided by the Storage team to the required Unix/Linux Servers.
• Maintained Troubleshooted Storage Disks from IBM and EMC Disk arrays.
• Experience in Servers consolidation and virtualization using UML Linux, XEN and HPSA vSphere virtual infrastructure, HPSA vSphere ESX, HPSA vSphere center.
• Implemented and monitored clustering on IBM p series servers using HACMP 5.4.
• Installed Check Point Firewall for networks
• Installed and configured SAMBA server for windows and Linux connectivity.
• Installing, configuring, and deploying applications on WebLogic Application Server 9.0.
• Implemented and configured Backup policies and Storage Units using Veritas NetBackup 6.5.
• Performed file system tuning, growing, and shrinking with Veritas File system 3.5/4. x.
• Installed WebLogic 8.1 with SP5 Server and configured Domains, Admin, and managed servers for applications to be deployed.
• Experience in internet services installation, configuration and maintenance WWW on Apache, SMTP on send mail, POP3, LDAP... on Linux and AIX platforms, including security of provided services, ability to troubleshoot common and very uncommon problems, high availability services.
• Experience in LPAR, knowledge on creating Dynamic LPAR's and created WPAR on AIX.
• Experience with migration SUSE Linux to Ubuntu Linux.
• Modified Autogas XML scripts for automated SUSE Linux Installation.
• Used Veritas File system VxFS and Veritas Volume Manager VxVM to configure RAID 1 and RAID 5 Storage Systems on Sun Solaris.
• Created disk pools and configured shared virtual disks using Symmetrix Management Console.
• Installing, maintaining, upgrading, and supporting red hat Linux systems w/ Oracle 10G RAC with Cluster Ready Services CRS and Sybase database.
• Installed and configured LAMP Linux, Apache, MySQL, and PHP for different applications.
• Expert in writing Shell scripting using Ksh/Csh/bash/Sed/Awk.
• Scripted in python to deploy and manage applications.
• Monitored servers, switches, ports etc. with Nagios monitoring tool.
• Administered 8-server red hat Linux cluster, 6-server fedora core6 cluster, IBM DS4300 Storage, Veritas Clustering VCS and miscellaneous servers.
• Configure HACMP for a clustering environment on AIX servers and administered the virtualization environments consisting of VIO servers.
• Use ILO/IMM/HMC for remote access of servers on Linux/AIX respectively.
• Experience in Implementation Apache, Tomcat 5.5 for the Java Servlet and Java Server Pages technologies.
• Tuning the kernel parameters based on the application/database requirement.

Environment: AIX 4.3/5.1/5.2/5.3 , Red hat Linux AS3.0, AS 4.0, Sun Solaris 9,10, SLES 9, 10, IBM System p series 520/570/590/630/650/670 , HP UX, Sun Fire 6800, 4800, V890, V880, V490, V480 and V210, Veritas Volume Manager, IBM HACMP 5.4, Veritas Cluster Server, DS8300, Python, WebSphere ND 5.1, XD 5.1, WebLogic 8.1, Samba, Oracle 9i/10g, Veritas

Confidential, BIRMINGHAM, AL

Linux Admin

Responsibilities:

• Performed installation, configuration, and maintenance of red hat Linux 5. 3.
• Installed of all the required Software, patches, documentation, licensing trouble shooting.
• Network Monitoring Using Nagios tool.
• Setup various user profiles, environment variables/security to ensure smooth operation.
• Monitoring servers using BMC patrol Express.
• Good understanding of web services software architectural and design issues.
• Handling HP and DELL servers running on red hat Linux and SUSE Linux 9 and GNU.
• Performed daily backups, restoration of data as per requests from developers using Veritas NetBackup.
• Experience in Servers consolidation and virtualization using HPSA vSphere virtual infrastructure, HPSA vSphere ESX.
• Implementing RAID 1 and RAID 5 on mission critical servers such as domain controllers and file servers.
• Linux kernel, memory upgrades and swap area. Red hat Linux Kickstart Installation. Configuring DNS, DHCP, NIS, NFS in Red hat Linux other Network Services.
• Setup of full networking services and protocols on UNIX, including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, kickstart and print servers to insure optimal networking, application, and printing functionality.
• Write Shell Scripts as cron jobs and deployment scripts for various reasons in VIM editor.
• Performed troubleshooting of CPU bottle necks, memory bottle necks and gave suggestions on performance improvements. Analyzed performance issues through PERFPMR.
• Audited the servers after the installation and prepared documents.
• Worked on EMC disk storage to allocate disk space.
• Network trouble shooting using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.
• Provided Security and troubleshoot the network issues in environment with 2500 users with VPN.
• Monitored overall system performance, performed user management, system updates and disk storage management.
• Created users, manage user permissions, maintain User File System quota on red hat Linux and AIX.
• Production support of Apache and JBoss including installation, configuration, management, and troubleshooting.
• Installed and configured Sudo for users to access the root privileges.
• Wrote Technical documentation for various projects and worked with technical writer to finalize the documents.

Environment: Red hat Linux 4.0,5.0, HPSA vSphere ESX Server 3.5.0, JBOSS, Remedy, EMC Power Path, windows 2000/2003, Sun Solaris 8,9,10, Solstice Disk Suite, AIX 5.3, Veritas Cluster Server, Enterprise Security Manager, WebLogic 8.1, Oracle 9i/10g.