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Sr. Unix/ Windows/vmware Systems Engineer Resume

NY

SUMMARY

  • Over 10+ years of industrial experience as aLinuxAdministrator in system administration in Red Hat EnterpriseLinux, Cent OS & Fedora and also Production Support of various applications in Red Hat EnterpriseLinux, Ubuntu …, Sun Solaris … and Windows environment.
  • Experience in Installation, Configuration, Upgrade, Patches, and performance tuning on UNIX and system software & hardware.
  • Expertise in building Microsoft Windows2008 R2, 2008, 2003, 2000 servers using HP Smart Start, Array configurations, diagnosing server, Updating Firmware and PSP, application Software under multi - platform environments, deployment & monitoring physical Servers.
  • Installed, configured and administered all: Windows Server 2012 R2: DNS Servers, DFS Servers
  • Migrated all Windows2008 Domain Controllers to Windows2012 R2 Domain Controllers.
  • Experience in Installing, configuring and maintaining teh file sharing servers like Samba, NFS, FTP and also Web Sphere & Web Logic Application Servers, Nagios and Chef.
  • Experienced in configuring and managing Puppet master server and also experience in updating and creating modules and pushing them to puppet clients.
  • Worked on Active Directory Autantication
  • Experience in Installing and configuring Apache/Tomcat/Java/MySQL.
  • Worked on configuring theLinuxmachines through Kickstart (Red HatLinux) program for Host and Network based Installations.
  • Managed servers on teh Amazon Web Services (AWS) platform using Puppet configuration management.
  • Experience in building private cloud infrastructure of OpenStack, deploying through puppet and maintaining them in production.
  • Solid foundation on OpenStack Infrastructure as a service (IaaS) and cloud computing concepts.
  • Deployed OpenStack icehouse, juno, kilo, liberty releases in a multimode environment manually.
  • Expertise in creating HEAT templates for VNF Onboarding
  • Experience in using Horizon and also OpenStack CLI to interact wif OpenStack Services like Nova, Neutron and Keystone.
  • Cloud computing Testing - Deployment and configure OpenStack components, tested OpenStack framework.
  • Implementing and setting up Puppet Master server for configuring and installing teh modules for automatic deployment on AWS Environment.
  • Experience wif Automation Tools Puppet, Chef and Ansible
  • Implemented Puppet modules to automate teh installation and configuration for a broad range of services and well versed wif creation of puppet profiles and role modules.
  • Hands on wif Puppet manifest files to deploy automated tasks to many servers Confidential once.
  • Managing disk storage wif Veritas Volume Manager 3.5/4.1 wif Veritas File System (VxFS)
  • Adding/expanding new storage to existing/new systems using LVM, VERITAS Volume management VXVM and Vxfs on Linux/SUN servers.
  • Implemented day-to-day tasks in RedHat Linux, AIX and Solaris include upgrading packages, kernel, and drivers.
  • Used infrastructure deployment, testing, change control, problem & access management tools like PAC2000, Remedy Access Management, DMAN (Deployment Management and Notification) and PTP (Project Tracking Portal)
  • Developed procedures to unify streamline and automate applications development and deployment procedures wif Linux container technology using Docker swarm and Docker compose.
  • Installed and configured an automated tool Puppet dat included teh installation and configuration of teh Puppet master, agent nodes and an admin control workstation.
  • Wrote Puppet manifests for deploying, configuring and worked wif modules, classes and manifests in puppet to automate system operations.
  • Administered Puppet Enterprise to provision multi-platform virtual machine configurations across multiple-platform environment servers dedicated for building, deploying as well as for development, test and production systems.
  • Configuration of Citrix server policies, Load Management and Printers.
  • Ticketing Tool used BMC Remedy PAC2000. Worked on CR (Change Request), WR (Work Requests), PR (Problem Tickets).
  • Management done utilizing Puppet, Ansible, Centrify, and Powerbroker for automation and AD autantication.
  • Expertise in creating Citrix Streaming Profiles and Publishing Applications to users in Citrix XenApp 4.5/5.0.
  • Maintains a git repository for our puppet modules and ansible plays.
  • Develop and maintain configuration manuals, procedure manuals and standards for Jboss application servers
  • Executive level experience in WINTEL System Administrator
  • Good troubleshooting skills on issues related to WebLogic, apache, tomcat, Networking, Database, UNIX and applications and worked wif respective engineers to resolve them and provided RCA.
  • Experience in Branching, Merging, Tagging and maintaining teh version across teh environments using SCM tools like Subversion (SVN), GIT (GitHub, GitLab), Clear case, Harvest and VSS.
  • Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in RedHat Linux and Solaris and AIX.
  • Fast-provisioning and configuration management for Ubuntu using Cloud Formation and Chef on Amazon Web Services.
  • Worked wif Windows, Ubuntu and Debian systems.
  • Deploy Solr on AWS Platform
  • Develop solr schema for financial data
  • Expertise in configuration and managingLinuxVirtual Machines under VMware.
  • Experience in Package management using RPM, YUM and UP2DATE in Red HatLinux.
  • Experienced in managing users and groups and assigning file access privileges, ACLs, changing ownerships of users and groups using chown, chgrp commands, modifying teh file permissions using chmod, SUID, SGID, and Sticky bit commands according to teh requirement.
  • Efficient in installing, configuring and implementing teh RAID technologies using various tools like Logical volume manager and File System.
  • Exposed to work on central remote printer services using CUPS.
  • Experienced in configuration and maintenance of commonLinuxservices such as Tomcat, Apache, MySQL, NFS, FTP, Postfix, LDAP, DHCP, DNS BIND, HTTP, HTTPS, SSH, ip tables and firewalld etc.
  • Experience in troubleshooting hardware issues on HP DL 380, DL 580, BL 460c and BL 660c servers.
  • Installed, configured, and supported; Debian and CentOS servers; Apache, PHP, Tomcat, WSO2, LDAP, etc
  • Ability to handle load balancer implementations like bonding multiple interfaces into single bond in case of over load on LAN devices.
  • Extensively used VERITAS Cluster Server 4.x & 5.x.
  • Integrate open source technologies such as SQLite, nginx, dhcpcd and libmnl into code base
  • Created LAMP instances wif Apache Web Server & Nginx on AWS.
  • Experience in VERITAS Volume manager (VxVM), Mirroring, and striping, Parity, New File Systems, Mounting and Un mounting File Systems Also Back-up management using normal back-up tape drives, manual commands (tar, scp, cpio, dd etc.), VERITAS Net Backup.
  • Strong understanding in writing teh automation of processes using teh shell script wif bash and Python.

TECHNICAL SKILLS

Operating Systems: Linux(Red Hat, Cent OS, Ubuntu, Debian,SuSe),Windows, AIX, Solaris.

Networking: TCP/IP, LAN, WAN, FTP/TFTP, NFS, DNS, DHCP, SMTP, VPN.

Virtualization: VMware, Citrix, Wintel ESXi, VSphere, VCenter Server.

WEB Technologies: Tomcat, APACHE HTTP server 2.x, 3.x, Web Logic (8/9/10) & WebSphere 4.0/5.0,Jboss.

Database: MariaDB, MySQL, RDBMS, MSSQL, Oracle.

Programming Language: Shell scripting (Bash), Python, Ruby, HTML, VB,JAVA.

Backup Management: VERITAS Net Backup 5.x/6.x/7.x, tar, scp, cpio, dd,LinuxLogical

Third-party Software: RAID Technologies, VERITAS Volume Manager, HP Service Guard

PROFESSIONAL EXPERIENCE

Confidential

Sr. UNIX/ Windows/Vmware Systems Engineer

Responsibilities:

  • Addressed and supported all types of Linux and SUSE, AIX and Windows Server Requests (SME Level)
  • Installation, configuration and upgrade of Red hat Linux and SUSE, AIX and Windows operating system
  • Expertise in VMware vSphere version ESXi and vCenter operations Management.
  • Experienced working in VMware ESX (VSphere) hypervisor for virtualization and installed different OS such as Linux (RHEL), SUSE, and Windows.
  • Administered, maintained and monitored Central site wif several remote Primary sites based on Windows2003 Servers in a Windows2003 Domain.
  • Utilized Redhat Satellite Server for kickstarting VMware virtual servers wif teh Redhat RHEL 5/6/7 OS Versions.
  • Created continuous integration system using Ant, Jenkins, Puppet & Chef full automation, Continuous Integration, faster and flawless deployments.
  • Created puppet manifests and modules to automate system operations.
  • Responsible for large-scale Puppet implementation and maintenance. Puppet manifests creation, testing and implementation.
  • Deploying teh OpenStack components on multimode wif High availability environment.
  • Integrated OpenStack (Ice house) wif OpenStack to create software-Defined-Networking tenant and service provider network and routers.
  • Worked wif Client's OpenStack cloud, created instances using nova client, setting security and deploy applications and brought them in to production after QA testing.
  • Built, deployed and managed OpenStack Environment using Mirantis Fuel 7.0 for PCF bosh deployments.
  • Designed and architected cloud application deployment in OpenStack wif Nova, Neutron, Keystone command line clients.
  • Deployed Zabbix to monitor and alert teh health of Nova, Neutron, Keystone and other OpenStack services.
  • Deployed Openstack Kilo in a mutil-node architechure manually.
  • Used Chef/Puppet for Configuration Management.
  • Assisted Operations Team by writing specific Puppet manifests to deal wif application installations and related configuration files.
  • Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated wif SAN Team for storage allocation and Disk Dynamic Multi path.
  • File system Tuning and growing using VERITAS File System (VxFS), coordinated wif SAN Team for storage allocation and Disk Dynamic Multi path.
  • Manage teh configurations of different servers utilizing Ansible.
  • Used file module in Ansible playbook to copy and remove files on remote systems.
  • Deploy Redhat Satellite 6.2 Management solutions wif custom repositories dat provide a stable management solution for Linux systems.
  • Troubleshoot various issues related to Citrix resource manager, Printers etc.
  • Migration of virtual machines from ESX 5.5 to ESX 6 .0.
  • Patch/upgrade OS and software on Red Hat Enterprise 5.x, 6.x and 7.x using RedHat Satellite server.
  • Maintained software packages on servers using RHEL Satellite and Repository servers.
  • Managed CIFS and NFS exports and FTP services on Isilon.
  • Provide administrative services for MS Windows Server 2003 and 2008R2, DNS, ADDS, IIS, MS Windows 7 and 8 Professional and Windows XP Professional, and VMWare.
  • Performed Network/Administrator, Desktop Support for MS Windows 7 and 8 Professional workstations.
  • Worked on teh configuration management tool Puppet for deploying teh codes between different environments.
  • Experience in working wif Software Configuration Management tools - Puppet and Chef
  • Constructed Puppet Modules/Functions to Maintain Oracle Listener.ora Configuration Files
  • Built Puppet manifests and bootstrap scripts to allow us to bootstrap instance to various roles
  • Addressed and supported all types of Daily Wintel Server Requests (SME Level)
  • Migrate all Windows2008 Domain Controllers to Windows2012 R2 Domain Controllers AD.
  • Wrote teh Company Standard Server Build Document for all Windows2012 R2 Servers.
  • Wrote teh Company Standard QA Process Document for all new Windows2012 R2 Servers.
  • Performed NAS migration from Isilon to Isilon, and VNX and NetApp to Isilon.
  • Creating a test Environment in Citrix or VMware for Production Team to test their applications.
  • Performed V Motion using teh V center on teh ESX machines for migrating teh VMs online.
  • Installation of ESXi 5.0 Hosts, vCenter Server, vCenter update manager and administering VM's
  • Deployed and configured Windows, Linux, and OS X server operating systems
  • Installation of ESXi 5.0 Hosts, vCenter Server, vCenter update manager and administering VM's across 2 Datacenter’s running 6000 VM's.
  • Known as teh UNIX/Windows subject matter expert in all areas of interoperability and security related areas.
  • Also, worked in providing SaaS services using openstack by providing Mediawiki as a tool to Organization.
  • Debugging noledge of OpenStack neutron networking wif GRE as network topology.
  • Deploying Openstack components on multimode wif High availability.
  • Integrated Openstack (Ice house) wif Openstack to create software-Defined-Networking tenant and service provider network and routers.
  • Implemented automated local user provisioning in instances created in Openstack cloud
  • Conducted security configuration validation and analysis of wintel servers
  • Resolving user connections to teh Citrix Web Interface server by recycling teh IIS services.
  • Developed vRO workflow for VM provisioning using vRO.
  • Created network profiles and storage policies in vRA.
  • Has been providing shift based 24/7 monitoring, troubleshooting and proactive disaster preventive on wintel Server.
  • Migrated vRO workflows from Develop environment to Test and production environment.
  • Integrated end points to VRA (vCeneter and vRO).
  • Automate any given manual task using Perl and Shell Scripting.
  • Responsible for writing/modifying scripts using BASH & Shell
  • Integrated Linux to Active Directory using Samba-WIN BIND.
  • Resolved teh issue on wintel platform servers
  • Worked on integrating all teh servers wif samba-windind and SSSD for autantication.
  • Creating access groups for teh Linux servers in AD and assigned a Unix attributes to teh servers.
  • Maintained users and groups in AD for DMZ zone.
  • Add users and groups to access group of Linux in AD and implement SSSD for autantication.
  • Maintain daily operations for Windowsserver infrastructure and components.
  • Built servers and installed applications as per teh company standards and requirement. Used Windows2003/2008 r2 Standard Edition. Upgraded teh Firmware of teh servers.
  • Installed & configured Windows2008 wif Active Directory service, involved in teh maintenance and up gradation of DNS and DHCP servers.
  • Configured IIS on Windows2008 Servers and Apache on Linux& Solaris environment.
  • Comprehensive support and administration of Win NT/ 98/2000/2008/2010 systems
  • Configured and installed AIX and Redhat Linux Servers using jumpstart, Ignite, and Kick start.
  • Proficient in configuring, implementing, and monitoring different types of High Availability and disaster recovery scenarios like SQL AlwaysOn, Mirroring, Replication, log shipping, and clustering.
  • Installed and configured SQL 2012 AlwaysOn Availability Groups.
  • Installed and configured clustering and AlwaysOn Availability Groups environment as a High availability DR solution.
  • Installed and configured puppet dashboard.
  • Creating puppet deployment environment and creating puppet manifest
  • File system management over SAN (EMC) Environment: Sun Solaris, AIX, HP, DELL/IBM/HP Blades.
  • Creating Virtual machines, Clones and template for Linux and Windows
  • Set up and configure virtual recourses (LHEA, NPIV, virtual SCSI, virtual Ethernet, and virtual FC)
  • Worked on Open stack and its components like Nova, Glance, Swift, cinder, neutron and, Horizon.
  • Provided on-site physical and virtual support of technology infrastructure.
  • Successfully coordinated server and network migrations wif collocation customers and led physical migrations during teh scheduled maintenance Windows
  • Package management using RPM, YUM and UP2DATE in Red Hat Linux

Environment: RHEL AIX, SUSE, SOLAIRES, HP HELION OPENSTACK, 3PAR, HP ONEVIEW, VMware, SUN/MAC MINI/COMPAC/DELL/IBM/HP blade servers, Wintel, Active Directory, Citrix,Logical Volume Manager, Veritas net backup, SAN Multipathing, VM ESX, VM vSphere, VMware

Confidential

Sr. UNIX/ Windows\Vmware Systems Engineer

Responsibilities:

  • Responsible for managing more TEMPthan 5000LINUXservers through virtualization.
  • Installed VMware ESXi software which is a part of vSphere suite on bare metal hardware and implemented several virtual hosts on top of dat ESXi environment.
  • Installed, monitored and managed several virtual hosts on VMware ESXi using teh software vSphere client.
  • Provided 24/7 Production support.
  • Performed administrative tasks and system maintenance for MS Windows servers, Active Directory, IIS, and SQL Server.
  • Manage AWS EC2 instances utilizing Auto Scaling, Elastic Load Balancing and Glacier for our QA and UAT environments as well as infrastructure servers for GIT and Puppet
  • Puppetized server stand up to migration of Debian/RHEL flavors wif apache, nginx, ldap and mysql modules.
  • Automation of deployment of OpenStack (Kilo) services using shell scripts for Centos 7.
  • Using of Storage capabilities of OpenStack like Swift and Cinder backed by multiple NAS storage. Used Cinder as a persistent storage for VM's and switft for providing FTPaaS
  • Upgrade of OpenStack from Icehouse to Juno wif no data-loss.
  • Made Backup scripts for storing configuration of all openstack services.
  • Providing IaaS services to internal team members.
  • Extensive hands-on experience wif Openstack including all of teh Openstack components: Neutron, Horizon, Swift, Cinder, Keystone, Ceph, etc.
  • Openstack deployment and administration on RedHat Linux platform
  • Implemented automation tools such as Puppet, Chef
  • Automated software installations using puppet.
  • Responsible for operating systems, puppet modules develop scripts, storage and applications.
  • Worked as a critical resource on security remediation project for go live environment.
  • Worked on automation across digital infrastructure using Puppet
  • Used configuration management tools like puppet and RedHat satellite
  • Linux Satellite to install yum updates and other software.
  • Configuring Windows Active Directory service and designing standard folder architecture for teh users.
  • File system Tuning and growing using VERITAS File System (VxFS), coordinated wif SAN Team for storage allocation and Disk Dynamic Multi path.
  • Performed installation and configuration of VxVM for volume management, VxFS for Veritas file system and VCS for Veritas Cluster system on various servers.
  • Migrating Windowsserver 2003 to Windowsserver 2008 is my primary role in this project.
  • Administration and support of Web Servers, file serveres and data base servers.
  • Responsible for upgrading teh servers from Windowsserver 2003 to Windowsserver 2008.
  • Involved in implementing single sign on (SSO) using WSO2 Identity Server.
  • Implemented Business Process for Customer Validation using WSO2 Business Process Server.
  • Installed VMware vSphere client software which is a part of vSphere suite on a client machine to monitor teh virtual hosts.
  • Worked on Puppet Master and slave architecture environments, Installed and configured Puppet Master, agents, created and automated platform environment setup.
  • Developed puppet manifests to remediate security vulnerabilities for go-live servers.
  • Worked on kickstarting teh RHEL servers. Automated teh kickstart process to build servers using puppet.
  • Developed puppet modules to automate software installations/upgradations.
  • Created MSI packages using Citrix Installation packager in Citrix 4.0/4.5/5.0
  • Worked on Active Directory Autantication
  • Installation and configuration of Windows servers running DHCP, DNS, Exchange & Active Directories.
  • Created Cloud (Active/Active) WindowsServer 2012 R2 environments across two geographically located Datacenters, if one Datacenter became unavailable, their was no user impact.
  • Installed, configured and administered all: WindowsServer 2012 R2: DNS Servers, DFS Servers
  • Extensively worked under teh Devops environment using teh Configuration Management Tool such as PUPPET open software for teh automation of several processes.
  • Worked in physical, virtual and Devops environments wif several teams and contributed in user and group management, data management, network management, system and server administration tasks etc.
  • Responsible for teh migrating all teh data and user accounts from Windows2003 to Windows2008
  • Troubleshooting teh network issues in teh servers
  • Installing and configuring new Windows2008 server
  • Used Github repository to run teh Jenkins job for Continues Integration.
  • Maintain source code in Github repo's
  • Expertise in configuring a domain, deploying applications, configuring data sources, logging and web subsystems in Jboss 5 and EAP 6.2 in Production env on Linux (RHEL 5) and Solaris 9 operating systems.
  • Installed and Configured Tomcat Application.
  • Installed and configured IIS for SMTP connection in mail flow.
  • Experienced in Installing, Configuring and teh maintenance of teh IBM WebSphere Application Servers 4.0/5.x/6.x and WebSphere Commerce Servers and Web servers like IHS, Apache on AIX, Linux and WINDOWSNT/2000 platforms and setting up teh development, testing and production environments.
  • Used Nagios Monitoring tool to monitor server uptime, Services running on Linux&Windowsservers and also solve teh issue as per SLA.
  • Maintenance and administration Linux OS (Solaris, Oracle Linux, Red Hat, CentOS, Debian)
  • Perform Enterprise Security Management (ESM) upgrades on Solaris and Linux environment and add teh ESM managers to teh servers
  • Use Nagios monitoring for 24*7 server uptime, alerts, and troubleshoot issues as per SLA.
  • Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using teh tools NAGIOS and BMC Tools.
  • Worked on DevOps tools like Jenkins, Maven for Build Management and puppet, chef and Ansible for Configuration Management SVN/GIT for Version Control and Nagios, splunk for Monitering and Log Management.
  • System Administration Experience on installation, Configuration and Administration of RHEL, Centos, Ubuntu and Windows
  • Migrate WindowsOracle WebLogic Applications servers running on VMware in teh datacenter to teh Debian Linux Application servers in teh Google Cloud wif Oracle Database servers.
  • Deploy updates using Jenkins / GitLab, running Tomcat and Nginx on Debian Linux in teh Google Cloud
  • Software development in Python/C for testing platforms in Linux(Debian)
  • Created multiple puppet modules to manage different environment
  • Edited puppet yaml file wif necessary credentials
  • Setup puppet client/node and ensure dat puppet clients could communicate wif puppet master
  • Strong skills in managing Red HatLinuxservers, Virtualization (VMware, Red Hat enterprise virtualization preferred), and system security.
  • Mentored other systems administrators in engineering, installation, configuration, testing and administration ofLinuxservers.
  • Build, implemented and maintained system-level software packages such as OS, Clustering, disk, file management, backup, web applications, DNS, LDAP.
  • Configured and maintained FTP, DNS, NFS and DHCP servers.
  • Worked on configuring, maintaining and troubleshooting of local development servers, software implementations.
  • Performed configuration of standardLinuxand network protocols, such as SMTP, DHCP, DNS, LDAP, NFS, SMTP, HTTP, SNMP and others.
  • Installed and configured Puppet, a configuration management tool for automating several processes in teh Devops environment.
  • Created Puppet Master and Agents machines in teh production environment for deploying, updating teh software in automation process.
  • Helped in creating teh manifest files for deploying teh mail software across multiple agents in teh production environment.
  • Installed and used "Git" a version controller in puppet master for monitoring and updating teh regular changes in teh project.

Environment: Red Hat EnterpriseLinux,AIX, Windows, Citrix, wintel EMC and XIV servers, Active Directory,Puppet, Ubuntu, Debian, GIT, VMware ESXi, Sun Solaris …, vSphere, VCenter, Citrix, WSO2 Application Server, WSO2 Data Services, WSO2 ESB, WSO2 Identity Server, WSO2 BPS

Confidential, NY

Sr. Linux/Windows /Vmware Systems Administrator

Responsibilities:

  • Installed and configured several hundred Red Hat Blade and VMware ESXi 4.1, 5& 5.5 Virtual Environment.
  • Configured Red Hat Cluster Nodes for any legacy applications and verified teh daily health check on teh Cluster Nodes.
  • Configuration of Network bonding which include Active/Standby and Active/Active.
  • Managing Manifests in Puppet.
  • Monitor NETCOOL and PAC2000(remedy) ticket queue, and provide operational resolution for defined tasks such as drive utilization for window C:/, D:/, H:/, M:/, Q:/, and directory utilization unix linux application and OVO agent status failures
  • Used BMC Remedy (PAC2000), IMPACT, and MAXIMO to generate problem tickets.
  • Configure Winbind on all Linux workstations, which enables all teh Linux users to be autanticated on Microsoft Windows 2000 and 2003 Active Directory Server.
  • Installing, configuring Nagios on Linux, Solaris clients.
  • Managed Network Management System dat included NAGIOS (formerly Netsaint). Micromuse Netcool, Open Systems Nervecenter and Concord Sysedge server agents for Windows2000, Sun, Linux servers.
  • Installed, configured, and put into production Nagios monitoring system and Splunk troubleshooting system
  • Added and expanded new storage to existing or new system using LVM, VxVM, VxFS and SVM.
  • Installed, configured, and upgraded VERITAS Storage Foundation Suite, VERITAS Volume Manager, VERITAS Cluster Servers (VCS) and VERITAS File System (VxFs) - version 4.x, 5.x.
  • Perform responsibilities of implementing WindowsXP and hardware applications.
  • Administered, maintained and monitored Central site wif several remote Primary sites based onWindows2003 Servers in a Windows2003 Domain.
  • Software development in Python/C for testing platforms in Linux(Debian)
  • Linux Terminal Server X2Go (Debian)
  • Monitored Citrix server’s health by using Citrix Edge Sight
  • HL7 files were received and processed using WSO2.
  • Teh Insurance segment of teh HL7 files were processed using WSO2 Java mediator class.
  • Created a Composite Application project and deployed using WSO2 enterprise service bus.
  • Experience working in VMware ESX (VSphere) 4.x, 5.x hypervisor for virtualization and installed different OS such as Solaris, Linux (RHEL), Windows.
  • Installing, configuring Nagios on Linux, Solaris clients.
  • Linux Server administration and automation, Ubuntu and Debian, packaging of tools (DPKG)
  • Installed and configured Puppet, a configuration management tool for automating several processes in teh Devops environment.
  • Performed SQL queries for Windowsand Linux DevOp NoSQL server development for MongoDB updates.
  • Provided 24/7 Production support for Citrix environment.
  • Performed Installation of JBOSS JON 2.4, monitoring server dat will monitor teh JBOSS instances, operating system parameters running on different Operating systems.
  • Managing and Monitoring teh JVM performance by WebLogic Heap Size, garbage collection, JDBC Pools and taking Thread dumps and analyzing to find teh problems in application. Configured teh Session Management me.e. Memory to Memory on WebLogic Application server. Good experience in development and deployment of enterprise applications on WebLogic, and Tomcat application servers.
  • Integrated IIS wif Weblogic using SSL secure connection.
  • Implemented rapid-provisioning and life-cycle management for Ubuntu Linux using Amazon EC2, Chef and custom Ruby/Bash scripts.
  • Responsible for NIM installation on LPAR's, setting up NIM Servers, Clients, Define teh resources, Migrations wif NIM. Implemented rapid-provisioning and life-cycle management for Ubuntu Linux using Amazon EC2, Chef, and custom Ruby/Bash scripts.
  • Implementing a monitoring system using Zenoss and Nagios plugins in order to monitor temperature, cpu, memory, disk utilization, ipmi, event notification.
  • Set up Ganglia and Zenoss for cluster monitoring.
  • Installing and configuring Red Hat EnterpriseLinux5, 6.1 using kick start servers.
  • Responsible for installation, Configuration and administration of Oracle10g/11g database onLinuxand Windows2003 Servers and also an integral part of teh backup and recovery.
  • Installing and updating packages using YUM (custom YUM servers/repositories) and Red Hat Satellite Server.
  • Implement variable interpolation when creating puppet modules
  • Configured and Administered Apache, VSFTPD services, MYSQL and Tomcat.
  • Participating in 24x7 production on-call support ofLinuxand provided technical support to users.
  • Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red HatLinuxservers using satellite servers.
  • Implemented rapid provisioning and life cycle management for Red HatLINUXusing kickstart.
  • Expertise in security hardening (iptables/selinux) major Production Servers, and compiling, building and installing web server basedLinuxtools.
  • Experience in performing, uploading and upgrading new firmware on teh Interconnects and Chassis
  • Proficient in providing support on teh deployed Red Hat EnterpriseLinux& Sun Solaris servers from both operating system level and application Level.
  • Expertise in configuring Red Hat Cluster Nodes for any legacy applications and verified teh daily health check on teh Cluster Nodes utilizing clusters.
  • Expertise in creating VM Templates, cloning and managing Snapshots.
  • Expertise in working wif MySQL databases, Apache Web server, Tomcat Application Servers
  • Troubleshooting any performance issues wif MySQL and Oracle.
  • Expertise in hardening,LinuxServer and Compiling, Building and installing Apache Server from sources wif minimum modules.
  • Monitoring and troubleshoot backups and schedule Cron jobs.
  • Experience in scripting using BASH & PERL
  • Worked on Mail Server, Samba Server, Apache Server.
  • Worked on configuring NIS, NFS, DNS, DHCP, FTP, FSTP, Telnet and RAID levels.
  • Extensive experience in network management TCP/IP, NIS, DNS, NFS, VLAN.
  • Experience in database replication using OCFS2 file system wif oracle 10g and 11g database.
  • Experience in deploying several sets ofLinuxguest builds from VMware templates using PowerCLI as well as Red Hat Satellite Server.
  • Experience in deploying RHEL 5.x, 6.1 in a blade environment.
  • Patch management of servers and maintaining server's environment in Development/QA/Staging/Production.
  • Resolving assigned remedy tickets and remedy tools in Development/QA/Staging/Production.

Environment: Redhat4x, 5x, Solaris 9/10, AIX, HP-UX, VMware ESX 5.0/5.1/5.5, VSphere, Active Directory, HP ProLiant Servers DL 380/580, Dell Servers (R series), Windows2008 sever, EMC Clariion, Netapp, SCSI, VMWare converter, Apache Web server, F5 load balancer, oracle,, PHP, DNS, DHCP, BASH, NFS, NAS, Spacewalk, Tomcat, Kickstart, Sun Solaris … Ubuntu and Debian

Confidential, IL

Sr. Linux/Windows Systems Administrator

Responsibilities:

  • Worked on configuring, maintaining, and monitoring teh File Servers like NFS, FTP and Samba.
  • Installed VMware hypervisor on top of teh Windowsoperating system and also created several virtual machines.
  • Responsible for NIM installation on LPAR's, setting up NIM Servers, Clients, Define teh resources, Migrations wif NIM. Implemented rapid-provisioning and life-cycle management for Ubuntu Linux using Amazon EC2, Chef, and custom Ruby/Bash scripts.
  • Extensively worked on tools like Veritas Volume Manager (VxVM) and Veritas file System, Logical Volume Manager (LVM), Solaris Volume manger (SVM).
  • Experienced in creation and maintenance of user accounts and active directory.
  • Experience in building Servers using Jumpstart in Solaris, Kickstart in Linux, Ignite process in HP-UX and Manual installation.
  • Created groups, users, roles and configured alerts in JON 2.4 (JBOSS Operations Network) monitoring server.
  • Installed teh application on AWS EC2 AMI, Red hat, Ubuntu Instances.
  • InstalledLinuxoperating system on teh virtual machines to make aLinuxenvironment for creating teh file sharing servers.
  • Installed, configured teh several services like NFS or FTP or Samba Servers depending on teh requirement.
  • Created users and groups and restrict them using Basic, ACLs and Advanced File Permissions apart from teh File Server level permissions.
  • Installed and updated required packages using teh central repository (YUM) and RPM.
  • Performed monitoring teh network issues and tuning teh performance of teh system using some commands such as top, netstat, iostat, vmstat and ndd etc.
  • Created Samba Shares depending on teh modules discovered by teh users.
  • Shared files betweenLinuxboxes and Windowsusing teh WinSCP, a secure FTP, SCP client for Microsoft Windows.
  • Monitored theLinuxservers on a regular basis and was into tuning them accordingly in order to optimize performance.
  • Configured teh Quotas so dat users can be prevented from storing unnecessary files in teh File Servers' storage.
  • Helped other users in mounting teh Samba Shares, allowing them to use teh shared files.
  • Performed log management by using Alert log and Sys log.
  • Worked on automation of processes using Crontab and shell scripting using Bash.
  • Handled network related services like FTP, NFS, Samba, TCP/IP.
  • Performed daily backup of files using manual commands like tar, scp, dd, cpio, and VERITAS NetBackup.
  • Handled server health related reports which were critical in deciding teh performance of teh servers.

Environment: Red Hat EnterpriseLinux6.4 OS, Windows, VERITAS NetBackup, Sun Solaris … VMware, Ubuntu and Debian

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