SUMMARY:

• 10 years of IT experience in large - scale enterprise implementation and support. Proficient in various aspects of Server Computing Infrastructure Management.
• Experience in Installation, configuration, and System Administration with Linux (RHEL 7/6/5/4), SuSE Linux … and Windows … administration.
• Exposure on Cloud Platforms such as Openstack and AWS
• Troubleshooting the deployment issues (Openstack)
• Extensive experience with Windows Server … OS's.
• Patching windows servers through WSUS.
• Rebuild of Windows 2008/2012/2016 Active Directory domain controllers integrated DNS & DHCP
• Implementation of Windows 2008 Application Publishing to provide remote users.
• Build, Managed, monitored, and troubleshoot over 500 of Windows servers.
• Perform multiplatform Server builds on VMware, which include Windows Server ( 2008/2012/2016 ), solaris 10/11, centos 06/07 and rhel 06/07
• Responsible for assigning hostnames, static IP addresses, default gateway addresses and DNS addresses to Windows 2008/2012 server, solaris10/linux(06) Servers so as to introduce them to the network.
• Use the "dcpromo" tool to configure DNS, Active Directory as well as to promote standard Windows 2008 servers to domain controllers
• Windows 7, 8 and 10 NOS imaging configurations and software deployment. Create new User accounts and profile on Windows NOS and Home base system. Troubleshoot and resolve OS, application, malware desktop related issues on various Windows NOS.
• Configure Windows NOS clients to join the domain as well as configure file and print sharing on some Windows NOS to enable resource sharing.
• Good knowledge of Application Architectures in AWS Public Cloud and OpenStack Private Clouds.
• Experience in deploying and maintaining private cloud infrastructure of OpenStack.
• Experience in building new OpenStack Deployment through Puppet and managing them in production environment.
• Experience in automating provisioning of resources in AWS EC2 (Auto-scaling groups, networks, VMs), OpenStack Nova (VMs, images) and Neutron (networks, ports and routers).
• Administer OpenStack networking environment and supporting hardware switches and firewalls
• Automated the Openstack installation (Keystone,Glance,Swift,Percona) multinode-HA process using Puppet and integrated keystone with ldap
• Automated and modified Openstack components using Puppet according to internal architecturePuppet code to work with Openstack HA using Haproxy and Keepalived.
• Experience in RPM Package Administration for installing, upgrading, and checking dependencies. Reconfiguring RPM database using RPM Build and creating YUMrepository in Red hat Linux.
• Experience in building Red Hat Network Satellite Server for automated installation of Linux boxes and creating image of Linux system with System Imager that automates Linux installs.
• Experience in installation, configuration and administration of VMware based virtual servers using ESX/ESXi servers, vSphere and Virtual Center.
• Troubleshooting problems pertaining to Windows 2000/2003/2008/2012
• Planning, configuration, maintenance and administration of Windows Server Systems.
• Supported and mentored colleagues in SaaS technical support.
• Maintained configuration and operational readiness of compute cluster, external storage system and network infrastructure of research center.
• Possess strong working knowledge of Veritas Cluster, Veritas Volume manager (VxVM), and Red Hat Cluster suite
• Installation and configured Oracle Enterprise Linux, SuSe & Red hat 5.x, 6.x, 7.x on Dell Power Edge, HP Proliant Blade, and CISCO UCS & IBM Blade servers using Kickstart with PXE for LAMP (Linux, Apache, MySQL and Perl/PHP) installations.
• Utilized other AWS Cloud Computing platforms and its many dimensions of scalability including but not limited to: VPC, EC2, ELB, IAM, SQS, S3, auto scaling architectures, using EBS under high I/O requirements, custom monitoring metrics/analysis/alarms via Cloud Watch, the AWS CLI, to meet client's needs and project requirements.
• Performed centOS and custom Linux deployments utilizing Packer, Puppet and Chef with scalability in AWS.
• Supported applications Extraview & Confluence running on Solaris / Linux Server as load balancer.
• Troubleshooting of network issues, ports, firewall and F5 using tcpdump, wireshark.
• Configured and Managed EC2, RDS, Cloud watch, Cloud Formation, S3 Buckets, VPC, VPN Security Groups, Cloud Trial, Elastic Load Balancer, Auto-scaling, ElastiCache etc.
• Management within EC2 / Elastic Load balancer for ElasticSearch.
• Built and configured Virtual Linux Servers using ESXi and VSphere Client to ensure system scalability, optimization, management and availability needs.
• Supported Linux and Sun Solaris Veritas clusters and file systems
• Perform cluster failovers, Freeze and Unfreeze Veritas Cluster run hastatus -summ for solaris and clustat for Linux, enable and disable clusters, cleared failed states
• P2V, V2V conversions of Windows 2012 and Windows 2008 servers using Enterprise Converter.
• Extensive experience in studying existing infrastructure landscape, cloud product matching, design cloud architecture, Proof of Concepts, design improvements, cost Estimation and implementation of AWS Cloud Infrastructure recommending application migrations to public Vs. private cloud.
• In-depth AWS experience AWS including EC2, VPC (NAT, VPC Peering and VPN), Identity and Access Manager (IAM), EC2 Container Service, S3, CloudFront, Glacier, RDS, Dynamo DB, ElastiCache, Direct Connect, Route 53, Cloud Watch, CloudTrail, OpsWorks, SNS, SES, SQS, SWF.
• Developed and maintained Python /Shell scripts for build and release tasks.
• Developed UNIX shell scripts using Korn, C Shell, Bash Scripting, python and Perl.
• Experience in installing, configuring the Volume/File system management using VERITAS Volume Manager (VxVM), Logical Volume Manager (LVM), Veritas File System (VxFS).
• Experience in installing, configuring and maintaining Application Servers like WebSphere and Web Logic, Web Servers like Apache HTTP and Tomcat on UNIX and Linux.
• Extensively worked on administering NFS, NIS, NIS+, DNS, DHCP, LDAP, Mail servers, Samba Servers.
• Performing software installation, upgrades/patches/packages, troubleshooting, and maintenance on UNIX & Linux Servers.
• Services/Packages using Chef as well as AWS for EC2/S3/Route53 & ELB with Chef Cookbooks.
• Extensive experience in Shell (Bourne, Korn) and knowledge of HTML, Java Scripts, SQL, Perl Scripting.

TECHNICAL SNAPSHOT:

• Ansible, AWS
• Openstack
• Red Hat Linux
• Puppet, Chef, Docker.
• DB2, SQL, Oracle.
• Operating and tuning Unix/Linux systems, servers, and related components
• Maintaining Linux/Unix core systems
• Performing OS/Software installations and/or upgrades
• Windows

WORK EXPERIENCE:

Sr. Linux/ VMware/RedHat/OpenStack/ Windows system Engineer

Confidential

Responsibilities:

• As a Linux administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing, configuring &job scheduling using cron.
• Experience in managing multiple Windows systems with Microsoft SCCM 2007/2010/2012 providing patch management, remote control, software distribution and OS deployment.
• Troubleshooting problems pertaining to Windows 2008, 2008 R2, 2012 and 2012 R2.
• Managed deployments across various IaaS providers: AWS, Azure, SoftLayer, Oracle Cloud
• Automated Oracle Linux image building for Google Compute engine and SoftLayer with Chef, Packer, Jenkins
• Configure Windows NOS clients to join the domain as well as configure file and print sharing on some Windows NOS to enable resource sharing.
• Build, install and configure Unix (Solaris 10), Linux (Centos and Red Hat 6,7), Windows 2008/2012/2016 servers and Operating System.
• Configure Kickstart and Jumpstart for advanced installations.
• Introducing Solaris 10,11, Centos and RedHat 6,7 servers to the network including Windows 2008/2012/2016 servers
• Setup Domain and Active Directory on a Windows 2008 server; install and configure a SAMBA server on Solaris 10 and mapping to the Windows 2008 server
• Perform multiplatform volume management using SVM, LVM, ZFS volume manager, NAS, and VERITAS volume manager; installed and configured a LAN wide NAS (Free NAS) used for creating LUNs and attaching to Windows 2008 servers, Solaris10 Lunix 6.4 servers using iSCSi.
• Professional experience in Configuring and administering NFS, DNS, CIFS, FTP, SFTP, ROBOCOPY and LDAP on windows server … server environment
• Expertise in Installation and configuration of Microsoft Windows Vista, XP, 2008/2012/2016 server, Professional, Windows … Servers
• 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 with OpenStack Services like Nova, Neutron and Keystone.
• Cloud computing Testing - Deployment and configure OpenStack components, tested OpenStack framework.
• Deploying the OpenStack components on multimode with High availability environment.
• Integrated OpenStack (Ice house) with OpenStack to create software-Defined-Networking tenant and service provider network and routers.
• Worked with 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.
• Installed and configured LAMP (Linux, Apache, MySQL, and PHP) for different applications.
• Management within EC2 / Elastic Load balancer for ElasticSearch.
• Co-ordinating with Networking team for the Switches information, Routers and have good exposure on standard network protocols, load balancing, and firewalls in a CISCO network environment.
• Installation of Tomcat with JBoss Application & done load balancing with monitoring tools like BMC Patrol and Site scope.
• Deployed the applications on WebLogic Servers11g/12c and maintained Load balancing, high availability and Failover functionalities.
• Built and configured Virtual Linux Servers using ESXi and VSphere Client to ensure system scalability, optimization, management and availability needs.
• Utilized Dell PowerEdge Servers to configure and enable Virtualization and ensure system consolidation and scalability needs.
• Identified availability and scalability issues with existing environment. Architected, suggested, and implemented new application layout for a more efficient highly available environment.
• Supported Linux and Sun Solaris Veritas clusters and file systems
• Perform cluster failovers, Freeze and Unfreeze Veritas Cluster run hastatus -summ for solaris and clustat for Linux, enable and disable clusters, cleared failed states
• Performed Failovers in HACMP / cluster environment, monitoring servers
• Add SAN storage to existing volumes and if it's a HACMP cluster that is visible on both clusters
• Programmed a PHP knowledge base and wrote articles with SaaS problems and solutions.
• Took escalated calls from clients having a problem with the company's SaaS solution.
• Used chef for server provisioning and infrastructure automation in a SAAS environment.
• Experience supporting applications installation and configurations like Apache, Iplanet, Weblogic, Websphere and Databases like Oracle, Sybase & DB2.
• Provide high end UNIX and WebSphere support for multiple other applications such as CBC, CAM, EST, XAT, BPM, INF, applications on shared WAS farms, databases on shared DB2 farms, etc.
• Experience working on Administering various AWS Services USING AMAZON AWS Console,
• Experienced in AWS command line interface.
• Deploying the OpenStack components on multimode with High availability environment.
• Utilized backend RESTful APIs (developed in Lumen) to perform CRUD operations from web application.
• Configured and managed Apache Web Server on Linux for web based applications using REST/SOAP, Apache and Weblogic.
• Involved in source control management with GitHub and GitLab Enterprise level repositories. Regular activities include configure user's access levels, monitor logs, identifying merge conflicts and managing master repository.
• Write CFEngine policies to implement operational and security configuration management policies Develop AWS Cloud Formation templates (in JSON) to automate infrastructure deployments on the go.
• Created AWS Config and built the tools to track the configuration changes and by setting the automatic Notifications using AWS SNS
• Built AWS Resource group to group the resources by Environment.
• Deploy and monitor scalable infrastructure on & configuration management using Chef.
• Setup and Configuration of Chef Configuration Management.
• Worked on DevOps, puppet, chef, Jenkins, Github tools.
• Develop and maintain an expert level understanding of the OpenStack project ecosystem.
• Extensively worked on Configuration management tools such as Chef, Puppet for automation
• Provide 24 X 7 on-call UNIX and Linux support on a rotating schedule basis.
• Set up Sun servers for SAN-through-FCP boot as against booting from internal hard disks.
• Applied patches and packages on Linux servers using rpm RedHat Package Manager and yum tools.
• Ensured automatic startup of different services by using chkconfig.
• Configured Opsware on the servers for event tracking.
• Managing Amazon Web Services (AWS) infrastructure with automation and configuration management tools such as Puppet.

Environment: SUN Enterprise- E 5000/5500/6500 , AWS,Ansible, MySQL, DB2,SoftLayer,Chef,puppet, SUNFIRE 3800/4800/6800 , E10K/15K, TSeries, MSeries Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000,REST APIs, JSON, YAML, OpenStack, Python, Git, GitHub, Ansible, IBM/HP/DELL Blade Servers, CISCO UCS, Windows 2008, 2008 R2, 2012 and 2012 R2,Solaris 11/10/9/8, Red Hat Linux (RHEL 5/6/7), SuSE Linux(11/12)

Sr. Linux/ VMware/RedHat/OpenStack/ Windows

Confidential

Responsibilities:

• Administered 2000+LINUX/UNIX servers running Red hat Linux 4/5/6, Virtual machines hosted on ESXi servers.
• Provisioning Windows 2003, 2008, 2012 Server Utilizing VMWare
• Installing Windows 2012 updates and migrated from Windows 2008R2 server.
• Competent scripting experience in POWERSHELL, SHELL, PYTHON, RUBY AND PUPPET Language.
• Designing and implementation of Public and private facing websites on AWS Cloud
• Migrating from Onpremice infrastructure to AWS.
• Designed and architected cloud application deployment in OpenStack with Nova, Neutron, Keystone command line clients.
• Deployed Zabbix to monitor and alert the health of Nova, Neutron, Keystone and other OpenStack services.
• Perform multiplatform volume management using SVM, LVM, ZFS volume manager, NAS, and VERITAS volume manager; installed and configured a LAN wide NAS (Free NAS) used for creating LUNs and attaching to Windows 2008 servers, Solaris10 Lunix 6.4 servers using iSCSi.
• Professional experience in Configuring and administering NFS, DNS, CIFS, FTP, SFTP, ROBOCOPY and LDAP on windows server … server environment
• Expertise in Installation and configuration of Microsoft Windows Vista, XP, 2008/2012/2016 server, Professional, Windows … Servers
• Updating/Patching Linux, Windows Virtual Machine in VMware VM's
• Maintaining and updating the domain controllers and RODC in windows server 2008/2012/2016
• Configuring and administering NFS, DNS, CIFS, FTP, SFTP, Robocopy and LDAP on Windows server 2008/2012/2016 server environment
• Configure Windows Multipathing policies to configure Multipathed LUN's from NetApp FAS Solutions 6240,6080's, 3270's
• Assist in P2V conversion of Windows 2008/2012/2016 server editions using enterprise VMware converter and also installed the VMware tools on that machines
• Installing and configuring Hyper-V on windows Server 2008/2012/2016 R2
• Created playbooks for OpenStack deployments and bug fixes with Ansible.
• As part of Cisco Cloud team fixed issues related to OpenStack components Nova, Glance, Neutron, Keystone,
• Debug and resolve Pre-Post OpenStack deployment failures.
• Worked across both private (OpenStack) and public clouds (Amazon AWS).
• Created playbooks for OpenStack deployments and bug fixes with Ansible.
• As part of Cisco Cloud team fixed issues related to OpenStack components Nova, Glance, Neutron, Keystone,
• Debug and resolve Pre-Post OpenStack deployment failures.
• Installation and configuration of OpenStack Keystone, Glance, Nova, Neutron, Horizon, Cinder, Heat
• Installation and configuration of OpenStack on Cent OS 7.
• Worked AWS Command line Interface.
• Provided support for RedHat, CentOS and Suse based Linux-based systems, network management systems, provisioning systems, storage arrays, SMS-Cs (Nagios), STPs, Firewalls, Load Balancers.
• Created SQL scripts to create, load and support tables for the RTP system Databases & RDBMS Oracle, MS Access, DB2, SQL Server 2005.
• Installing, configuring, and maintaining Samba Web Servers, WebLogic and WebSphere Application Servers, and Oracle, SQL, MySQL and Sybase database technologies.
• Deployed the applications on WebLogic Servers11g/12c and maintained Load balancing, high availability and Failover functionalities.
• Involved in doing a performance benchmark of WebLogic server by using Load runner.
• Configured and deployed applications in various work environments like Development, System Test, Load and performance and Production.
• Configuring WebSphere Portal Server 7.0 on multiple platforms for both Horizontal and Vertical clustering f or Work Load Management.
• Conducted performance and scalability audits of applications and the application servers.
• Maintained consistency, scalability using Puppet & CFengine across several hundreds of servers.
• Upgraded load balancers from Radware to F5 BigIP v9 which improved functionality and scalability in the enterprise.
• Performed Failovers in HACMP / cluster environment, monitoring servers
• Add SAN storage to existing volumes and if it's a HACMP cluster that is visible on both clusters
• Perform Red Hat cluster failovers and help with cluster Deployment
• Assist cluster users with cluster usage best practices, troubleshooting, and diagnosis.
• Experience in integration of various data sources like Oracle, DB2, MY SQL,SQL server and MS access and non-relational sources like flat files into staging area.
• Responsibilities included designing and developing new back-end services, maintaining and expanding our AWS infrastructure, and providing mentorship to others on my team.
• Configuring the Openstack keystone, glance, cinder, swift,
• Installation, Administration & Troubleshooting of Windows 2008 active directory domain controllers, sites, AD replication, Group policy, DNS, WINS, and patch management.
• Successfully integrated secure WAN interconnects to AWS, Azure, and SoftLayer
• Experience in Branching, Merging, Tagging and maintaining the version across the environments using SCM tools like Subversion (SVN), GIT (GitHub), Stash and Clear case.
• Experience working on Logical Volume Management (LVM) administration on Linux. Created VGs, LVs, PVs and disk mirroring.
• Automate application deployment using Puppet, Chef and maintain System configuration with the same tools
• Large-scale Puppet implementation and maintenance. Puppet manifests creation, testing and implementation.
• Implemented automations tool puppet and worked with Chef Management tool and AWS and DevOps.
• Experience on working with Monitoring tools such as Nagios, Cacti etc.,
• High Availability using Red hat cluster and VERITAS Cluster Servers for failover and redundancy purpose.

Environment: CISCO UCS, HP/IBM Blades, Windows 2003, 2008, 2012,REST APIs, JSON, YAML, DB2,SoftLayer, OpenStack, Python, MySQL, Git, GitHub, Ansible, Solaris9/10, AWS,Ansible,Chef,puppet, RHEL4/5/6, M5000, T2000, T5140, SuSE Linux 10/11, Netra X1, X4140, X4170 SPARC T- 4 6800/4800/480 , SunFire 6900, IBM x3550, x3650 M3, X4600, IBM series 670, p5 595, series Servers

Linux/ VMware/RedHat/OpenStack/ Windows

Confidential, IL

Responsibilities:

• Installation, Configuration & Upgrade Linux (Red Hat and SuSE),operating system.
• Experience in configuring Red Hat Cluster Suite, Veritas Cluster Serverand HP Service Guard.
• Installation of patches and other software packages.
• Assist cluster users with cluster usage best practices, troubleshooting, and diagnosis.
• Creating Cluster and Configuring High Availability in VMware
• Working on Veritas Cluster Server and assisting and coordinating with Application and Middleware teams for timely changes using ITSM tool.
• Installed and configured Oracle on Unix and windows 2008/2012 servers in the test, development and production environment.
• Deployed Oracle Critical Patch update for the windows and Unix on Oracle test, production and Disaster Recovery (DRF) servers.
• Maintained and supported Oracle front end applications (Forms and Reports) on Windows Test and Production environments
• Performed back up (hot, cold and export backups) of the Oracle databases on windows and Unix servers, performed database restore and recovery on Oracle databases as necessary and or requested.
• Managed Oracle database User accounts on Windows and Unix servers
• Setting up SAMBA & NFS servers, to enable Windows & UNIX clients to communicate with Linux without the need of additional software on the Windows side, such as NFS clients
• Working on VCS (Veritas Cluster Server) and AIX HACMP.
• Configuration of NIS, NIS+, DNS, NFS, Sendmail, Samba, Apache for multiple environments.
• Monitoring System performance and do kernel tuning to enhance the system Performance.
• Setup and maintained DNS Primary, Secondary, Cache-only servers, DHCP servers and DNS clients.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.
• Proficient DB administration (Oracle, DB2, Mongo, MySql, Sybase and SQL) knowledge for maintaining, pruning, and performing required DB tasks.
• Worked together with DBA team to build the startup and shutdown scripts for DB2 databases.
• Understanding of Network protocols like TCP/IP, BGP, HSRP, NAT, IPsec and worked on configuring Hardware/Software firewalls.
• Developed Windows PowerShell script to automate setting of user credentials and activation of Windows
• Configuring, maintaining and troubleshooting Windows Server 2008 R2, SCCM and SCOM Infrastructure.

Environment: Red Hat Linux, OpenStack, Windows Server 2008,Python, SuSE Linux,DB2,SoftLayerand VERITAS Volume Manager, VERITAS NetBackup, Veritas Cluster Server, Red hat Cluster Server.

Linux Administrator

Confidential, NY

Responsibilities:

• Installation, Configuration & Upgrade of Redhat/SuSE Linuxoperating system.
• Configuring NFS, NIS, NIS+, DNS and LDAP.
• Worked on Data Center Migration Project. Migrated Linux/Unix Servers from one data center to other data center with minimal downtime.
• Installing and configuring windows 2003 and windows 2008 server.
• Deployed the Windows Server 2008 R2 operating system using a Microsoft Deployment Toolkit (MDT) and Windows Automated Installation Kit (Windows AIK).
• Worked on making DNS entries to establish connection from server to DB2 database.
• Excellent in Configuring and Administering NFS, SMTP, DHCP, samba in heterogeneous environment.
• Configured and used yum repository for packages and patches installation in Linux environment.
• Worked on Installation and configuration of VMWare ESX servers.
• Installation and configuration of Logical Volume Manager, Veritas Volume Manager, Veritas File System, Veritas Cluster Server.
• Extensive use of volume management tool using Veritas Volume Manager to create disk groups, volumes with RAID architecture and layered volumes.
• Good working experience with Redhat Satellite Server for upgrading and patching Linux Servers.
• Expertise in setting up SystemImager software for automated installation, software distribution, configuration changes and operating system updates to a network of Linux Machines.
• Experience in Redhat Cluster Suite and Global Filesystem, Redhat Network Satellite Server.
• Creating Metadevices, soft partitions, mirroring the devices and metasets.
• Space allocation to the metadevices, detaching and clearing the devices if not in use.
• Troubleshooting and building high end servers and midrange servers.

Environment: Linux RHEL 5, SuSE Linux 10.x, Sun Fire 6800/E6500 Server, E10K/25K, T2000/T5000, M5000, HP L/N/RP series, IBM Power 570, p5 505 Express servers,DB2, Ubuntu 6.x/7.x, Apache, SAN EMC/HP/Hitachi, Veritas Volume Manager, VCS, Veritas Netbackup, windows 2003 and windows 2008 server.