SUMMARY:

A senior technical leader with over 10 years IT management of servers, managing over 20,000 Linux /Unix/Windows servers and operating system security management for the Bank, Sales and Recruitment Environments .Extensive background in Linux/Unix/Windows security, audit compliance, automation design, access logistics and data distribution, Ability to work effectively with all levels of a technical support organization. Demonstrated strength in standardization solutions.

TECHNICAL SKILLS:

Operating Systems: Linux (RedHat 3.x,4.x,5.x,6.x, Centos 5.x, 6.x), Windows

Virtualization: VMware Workstation, VMware Server, VMware Infrastructure and 5.5 (ESX/ESXi server & Virtual Center), VMware vCenter Converter, VMware Lab Manager, VMware SRM, VMwareThinApp and VMware Virtual Desktop Manager.

Hardware: HP Proliant DL 350, 550 G3, G4, G5 & G6, HP Blade C6000 & C7000, Dell Power Edge, Cisco UCS.

Tools: VERITAS Volume Manager, VERITAS Net backup 5.1, Nagios, Puppet, Chef, Web Sphere Application Server 3.5,4.0, Netscape/iPlanet Server, MQSeries, WebLogic Server, Active Directory.

Programming Languages: KSH, CSH, Bash,Python and Perl programming.

File Editors: UNIX Vi and VIM.

RDBMS: Oracle MSSQL and MySQL.

Networks: NIS, NFS & DNS and Firewalls.

Protocols: TCP/IP, FTP, SSH, SFTP, LDAP, SSL, SCP, SSL, ARP, DHCP, TFTP, RARP, PPP and POP3.

PROFESSIONAL EXPERIENCE:

Sr. Linux/Unix/Windows/VMware Systems Engineer

Confidential

• Experience in Installing, Configuring and Maintaining RedHat Linux (RedHat Enterprise Linux 5.x, 6.x & 7.x ) Servers and Windows 2003/ 2008 R2 Servers on Power Edge Model rack, HP blade centers like HP C6000 & C7000 and also Cisco UCS environment.
• Experience supporting RedHat servers in Production and Development environments.
• Experience in Virtualizing RedHat servers using vSphere 4.1/5.0/5.1 and managed ESXi servers using vCenter and also worked with ESXi Clusters.
• Installedand ConfiguredRedHat LinuxKickstartand booting from SAN and managing multipathing at boot level and OS level using EMC Powerpath.
• Solaris 12 server setup Automated installer.
• Expert on VMware VSphere storage design and configuration SAN, ISCSI, NFS
• Expert on P2V, V2V conversions of Linux and Windows O.S servers using Enterprise Converter
• Experience with VMware View 4.x/5.x, VDI, Update Manager, DRS, HA, vCo, vCops, VMware Replicator, VSom.
• Expert in VM Deployment, Migration of VM's both P2V and V2V using tools like Plate Spin, VMware Converter and VCenter Guided Consolidation.
• Set up Control domain on Sun T(Sun 4V) series machine for Solaris 12
• Exposure on Cloud Platforms such as Openstack and AWS
• Troubleshooting the deployment issues (Openstack)
• 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.
• Expertise in Migration Using Quest Migration Manager Tool for Active Directory.
• Experience on working with Integration of UNIX and LINUXwith Active Directory using Centrify Tool Provided 24x7 on call Support for Production Environments.
• Assisted in designing, implementing and evaluating applications, systems and utilities relevant to Active Directory services
• Great knowledge of Puppet, and including experience in building and developing puppet modules, ideally Hiera to automate application installation and configuration management.
• Involved in rewriting the modules according to the environments while migrating from Puppet V3 to Puppet V4.
• Experience on sanitized test on the module behaviors using Gemfile, Jenkinsfile, Rakefile and spec unit tests through Jenkins process.
• 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
• Perform V2V migration of Solaris 12 Local Zones between Global zones by exporting VERITAS Disk Groups(Veritas Mirroring) and SAN LUN swings
• Perform P2V migration of Solaris 10 and 11 physical hosts to Solaris 12 Containers using FLAR
• Build Solaris 12 Local zones, branded and native, sparse and full root
• Participate in yearly Disaster Recovery program to ensure DR functionality of the entire production environment on Solaris 12
• Experience in writing scripts to automate jobs and debugging scripts.
• Experience in using protocols like NIS, NFS, SSH, SFTP & DNS.
• Conduct incident management trend analysis within the supported production environment.
• Administered Volume groups and volumes using Logical volume manager.
• Installed/Configured Websphere 5.x/6.x and other Application Servers and Administration of Websphere Application Server 6.x with Network Deployment, and Extension Deployment on RedHat Linux.
• Configured File Systems, users and group for Oracle and Websphere.
• Expertise in Configuring Bonded Interfaces for networking and Managing storage using LVM in RHEL and CentOS Operating Systems.
• Configuration and Administration of NFS, DHCP, FTP, LDAP and Sendmail.
• Experience using CHEF automation tool to deploy various applications.
• Responsible for Kernel tuning, upgrading of memory and swap area on Linux servers.
• Provide support to the application team and troubleshoot the system related, networking issues and application errors during deployments and performance tests.
• Involved in Designing and Implementing host level migrations and replacing virtualization using P2V and V2V using VMware converter and Platespin.
• Updating and upgrading ESXi servers, vCenter Server, using vSphere Update Manager and VM Tools through manual updates.
• Managed ESXi hosts using vCenter Server/ vSphere Client and VMware Web Client.
• Performed vMotion and Storage vMotion of Virtual Machines across different cluster with respect to security policies and application development requirements.
• Creation of hot and cold Clones Templates from Virtual Machines (VMs). Deployed Virtual Machines from Templates based on requirements and build documents.
• Performed Virtual Machine Snapshots for Application machines for Migrations and failback.
• Experience with creating Standard vSwitches(vSS), Distributed vSwitches(vDS). Isolated networks were created with separate vSwitches and VMkernel Port Groups. Third party tools such as Wireshark packet capturing tool were used for network traffic monitoring, vMotion, storage and Fault-Tolerance (FT) security and stability.
• LUN creation and storage mapping along with Multipathing and VAAI.
• Management and administration of Windows 2008 and 2008 R2 Active directory (Created Accounts, Reset Passwords, and Allowed Access to different Directories using NTFS permissions)
• Handled VMware solutions to support multiple storage connectivity options such as Fiber Channel-SAN, iSCSI, NFS (NAS).

Environment: Red Hat Enterprise Linux 5.x,6.x & 7.x, VERITAS Volume manager, Veritas File System, Veritas Cluster Server,Openstack, Puppet, VMware ESX/ESXi sever 5.0/6.0, Oracle, HP Proliant servers BL460, BL685, Enterprise scheduling Product.

Linux/Unix/Windows/VMware Systems Engineer

Confidential

Responsibilities:

• Installation, Upgrading and deployment of RHEL 5.x,6.x, 7.x physical and virtual machine.
• Installation, Configuration and Administration of VERITAS Storage Foundation Suite, VxVM, VxCS and Vxfs for Linux Servers.
• Installing and setting up Oracle and Websphere on Linux for the development team.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Configure Avamar, Commvault for server backup and restore solaris 12 production server.
• Setup Web-ips servers for Solaris 12 repository
• Strong Experience with HA, FT, DRS, VMware Distributed power Management.
• Expert in VRealize Automation vRA, vRBusiness vRB.
• VDI Implementation using latest VMware Horizon 7.0.
• Expert with vCloud suite includes VCD, vShield, vCops, VMware mirage.
• Solaris Jumpstart configuration and installation
• Experience in managing Active directory Domain Controllers, DNS and DHCP Servers.
• Handy Experience on troubleshooting Application Authentication issues in Active directory Multi domain Environment.
• Active Directory Engineer/Enterprise Administrator for large multi-national corporation
• Automated and modified Openstack components using Puppet according to internal architecturePuppet code to work with Openstack HA using Haproxy and Keepalived.
• Experience in building private cloud infrastructure of OpenStack, deploying through puppet and maintaining them in production.
• Involved in Design and configured multiple environments using Puppet. Deployed Puppet server to configure and manage the nodes, Puppet Dash board for defining the ENCs (External Node Classifiers)/local and Puppet DB for storing the information about the resources, catalogs
• Experience in configuring and maintaining R10K and Code manager and make all puppet masters servers in sync on different availability zones, and mange the module with Git and GitHub.
• Worked with the active-mq server, to set up Mcollective server and agents for orchestrations or parallel job execution on puppet nodes. And puppet nodes are Managed/Administered using Mcollective.
• 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.
• Perform package/software installation on Solaris 12
• Performs installation and upgrade of Solaris 12 /AIX patches for all applications installed on infrastructure
• Troubleshoot Solaris 12 servers including Net Management port configuration, SAN and network configuration, NIC teaming/aggregation (IPMP)
• Worked with Database administrators to tune kernel for Oracle installations on Linux.
• Configuration of Kernel parameters as per application requirement.
• Organizing DR (Disaster Recovery) server tests to make sure the infrastructure is correct and the DR servers are working as expected as in production servers.
• Worked with storage teams to split the R1 and R2 disk groups to enable the SAN disks to read/ write mode on DR servers and worked with DBA's and software system analyst to troubleshoot and testing the functionality of their applications for both Prod and DR servers.
• Implementation of SSH for secure transfers and implementation of PKI between servers to enable password less logins between servers.
• Worked on DNS, NIS Master Slave Servers along with required clients.
• Worked on different backup methods for backing up the data when upgrading and migration of Operating system
• Backups, Tar, rsync, rsnapshot and rdiff. Package and patch administration on Linux.
• Implementation of High Availability using Veritas Cluster Server 5.0 and 5.1. Worked on scripting using shell, bash and Korn.
• Experience in installing, administering, updating/upgrading ESX/ESXi servers, Virtual Center servers and windows virtual machines using VMware Update manager and manual upgrades.
• Set up V-Motion, High Availability (HA), Distributed Resource Scheduler (DRS), and related VMware products such as VM Workstation.
• Worked on Migration concepts like vMotion and Storage vMotion.
• Assisted in P2V conversions of Windows servers using VMware vConverter & Platespin.

Environment: Red Hat Enterprise Linux 5.x, 6.x & 7.x, VERITAS Volume manager, Veritas File System, Veritas Cluster Server,Openstack, Puppet, VMware ESX/ESXi sever 5.0/6.0, Oracle, HP Proliant servers BL460, BL685, Enterprise scheduling Product.

Linux/Unix/Windows/VMware Systems Administrator

Confidential, NY

Responsibilities:

• Administration and support of Linux servers (Red Hat Linux and Centos).
• Upgraded Red Hat Linux from 5.x to 6.x.
• Duties include user administration; scheduling jobs using crontabs, file system maintenance, scripting and automation.
• Built the servers from the scratch level i.e. loading OS, creating file systems and configuring network adapters and HBAs.
• 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
• Backup and disaster recovery strategy and implementation for Active Directory and messaging.
• Lead architect for Microsoft Exchange, Active Directory and VMWare virtual infrastructure designs.
• Upgrade of Microsoft Active Directory.
• Expertise in Google Cloud and deploy VM for Puppet master in different Availability zones.
• Expertise in Foreman as a Provision tools for deploy the VM and Duplicate the environment using Puppet.
• Experienced in configured Pulp and Artifacts to maintain the repository for puppet environment.
• 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.
• 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.
• 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.
• Responsible for Kernel tuning, upgrading of memory and swap area on servers under Linux.
• Configured test environments in VMware ESX Server to build guest OS using cloning.
• Install and configure DHCP, DNS (BIND, MS), web (Apache), mail (SMTP, IMAP, and POP3) and file servers on Linux servers.
• Experience in Network Monitoring Application Software such as Nagios.
• Configured and performed troubleshooting Samba over Red Hat Linux Servers.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Performed administrative tasks such as System startup/shutdown, Backup strategy, Printing, Documentation, User
• Management, Security, Network management, dumb terminals and devices.
• Maintained availability, increased capacity & performance of production machines by upgrading their hardware & firmware.
• Associated with tasks involved in SAN migration project.
• Worked in a fast-paced 24x7 production environment comprising Red Hat Linux and Windows Servers.
• Performed troubleshooting of operating system and software infrastructure issues on Domain Controllers, Member Servers, Server Clusters, and Virtual Machine Farms.
• Configured the standard cluster settings on vCenter clusters.
• Configured windows clustering for vCenter server high availability.
• Upgraded Win Server 2003 to Win Server 2008 with minimum or null impact on services provided to customers.

Environment: Red Hat Linux 4.x/5.x, Centos 5.x, Windows 2003/2008 R2.Oracle 9i, EMC SAN (Symmetric), Netapp On Command Manager, ESX 4.0, Esxi 5.0,Openstack, puppet, vCenter, vMotion, storage vMotion, DRS, HA, FT, Apache, Samba, Nagios, DHCP, SMTP, DNS, LVM, Shell Programming (bash, ksh), DELL PowerEdge 1650, HP, Cisco UCS.