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Sr System Administrator/ Sr Linux Administrator Resume

PROFESSIONAL SUMMARY:

  • 10+ years of IT experience in LinuxUnix System Administration with extensive experience in Solaris, Redhat Linux, CentOS, SUSE, Ubuntu, AIX and Windows (XP, 2003/08/12) Administration.
  • Installing, upgrading and configuring SUN Solaris 8, 9 and 10 on Sun Servers Using Jumpstart Servers.
  • AWS Certifeied Dev Ops Engineer worked with automation tools Puppet, vRealize Automation, Chef, Ansible. Extensive experience with AWS and Open Stack and Managing over Puppet and Chef.
  • Extensive experience in installing, configuring, troubleshooting, maintaining, implementation and support on Redhat Linux, CentOs, SUSE and Ubuntu.
  • Experience in supporting and maintaining environments with different middleware applications like JBoss, iPlanet, weblogic, Tomcat & Sun one server.
  • Experience on working with VMware ESX server 3.5, 4.0, vSphere, VMware Workstation, Virtual Box, Oracle Virtual Machine (OVM) and Redhat KVM.
  • Experience working with Vblock Infrastructure to perform Virtualization using VMWare ESX, vSphere on RHEL servers.
  • Experience in performing P2V, V2V migrations using VMware Converter.
  • Experience in Migrations at host level using different software likes EMC Open Migrator, Redhat LVM and VERITAS Volume Manager.
  • Expertise in disk, file system management, Volume Management using VERITAS volume manager, Solaris Volume Manager, VERITAS File System, General Parallel File System (GPFS).
  • Supported high availability, data replication, and failover using Veritas Cluster Server 3.x/4.x in SAN environment.
  • Experience in configuring Raid - 0, Raid-1, Raid-5, ISCSI, IDE, SATA, and creating Logical Volumes, Logical Volume Groups and supported them.
  • Installation, patching, upgrading, tuning, configuring and troubleshooting Solaris zones and have working knowledge of ZFS and LDOM’s.
  • Experience with BMC Remedy, ITSM, Workflow, Confidential Quality Center and JIRA systems.
  • Experience with Configuration and Maintenance of Automation tools like Puppet, Blade Logic, Ansible and Chef.
  • Experience with Jenkins, Maven, Ant, SVN and GIT.
  • Experience in Deployment and supporting the systems hosted OpenStack and Confidential Helion
  • Experience working with AWS Cloud computing and involved in creating AWS instances and deployed Linux and Ubuntu on AWS environment.
  • Experience in Bash, Perl, Python and Ruby Scripting.
  • Experience in TCP/IP network setup and troubleshooting.

TECHNICAL SKILLS:

Operating Systems: Sun Solaris8, 9/10/11,, SUSE 9/10/11, Ubuntu 6/10/12/14, Redhat Linux 4.x/5.x/6.x, ES3/4, CentOs 11.0/11.11, 11.23, SUSE 8,9,10 &11,VMWARE ESX 3.5, 4.0,Windows XP/NT/ 2000/2003/2008/2012

Software: VERITAS Volume Manager 4.x, 5.x, VERITAS File System 3.x/4.1, VERITAS Cluster Server 4.x, Solaris Volume Manager, General Parallel File System (GPFS)

Server Management: SUN Solstice Disk & Admin Suites, VxVM, SMC, Confidential Open View, Network Node Manager, Compaq Insight Server Manager & Intel LAN Desk Manager, Puppet, Chef, Nagios, Zabbix, vRealize Automation, BMC Patrol and Predict.

DevOps Tools: Maven, Jenkins, SVN, ANT, GIT

Cloud: GCE, AWS, Client Server Automation HPSA and Openstack

Languages: C, C++, XML, PHP, PL/SQL, Shell Scripting - ksh, Bash and csh, Perl, Ruby and Python

Database servers: Oracle 8i, 9.2.x, 10, MySQL, Cassandra and Sybase on Solaris and RedHat Linux and Win NT/2000, MySQL 7, 2000, 2012

Networking Protocols: SNMP,SMTP,TCP/IP,IPX/SPX,NetBEUI,SSH,SSL,BGP,EIGRP,LAN,WAN,ARP/RARP,LDAP,FTP/TFTP, RIP, DHCP, DNS, NIS

Application Servers: Web Sphere Apache, JBoss, Tomcat, Web Logic, Weblogic, PL/SQL

File System: UFS, VxFS, ext2, ext3, NFS,ZFS, JFS,GPFS

Storage: EMC Symmetric, Clarion, Sun Storage D1000, A5000/5200, NetApp

Virtualization: VM Ware, Zones, Containers, LDOM’s, LPAR’s

Hardware: Sun Fire (v880/V480/V240/V210/V440/280R/ 6800/4800/3800/ E10K, 15K, 25K Ultra-5/10, Enterprise 6500/5000/450/420 R, T5440, T2000, T5120, M4000, M5000, M6000, IBM RS 6000, pseries, Power edge 2850/1850, Confidential /9000K,IBM RS/6000, rp3440, rp5470, rx3660, rx6600, Confidential C7000 and C 6000 Blade Enclosures

Email: Exchange (2003, 2010) Linux Sendmail, Mailx

Security Monitor Tools: SPLUNK, WireShark, Nessus, MS Baseline Analyzer, Nmap, Squid Proxy

Software Experience: Microsoft OneDrive, Office, 365 Visio, Microsoft Project Manager AIDE, Nagios, EM7, WebSense, Terminal Services Manager, EMC2 Unisphere.

Ticketing Tools: Service Now ITSM, Remedy

Forensic Tools: Computer Incident Response Suite, EASEUS Data Recovery

Antivirus: Symantec Endpoint Protection, McAfee Enterprise EditionMicrosoft Windows Defender, Baseline Analyzer, ESET Nod 32.

Anti-Malware: Malwarebytes, Super Systems Centos, Red Hat, Mac OS X, Windows 10, Server, I-Phone, Android Operating

Remote Tools: Red Hat Satellite, MS Remote Desktop Connection Manager, Super PuttyBomgar, PC Anywhere, Proxy, VNC, Team Viewer, Secure CRT, Meraki. Antispyware, Rootkit Revealer, Microsoft Security, Essentials, AD-Aware, Spybot S&D, C-Cleaner.

Virtualization: vCenter, Esxi, vSphere 6.0, VMware Workstation 11, Parallels MAC OSHyper-V, Oracle VirtualBox, Citrix, Xen Amazon AWS.

PROFESSIONAL EXPERIENCE:

Confidential

Sr System Administrator/ Sr Linux Administrator

Responsibilities:

  • Extensively worked on Installation and configuration of Redhat Linux 3/4/5/6.x7.x, CentOS 4/5/6.x7.x, Solaris 9/10, SUSE and Windows 03/08/12/16 Servers on large distributed environment.
  • Worked on Vblock Infrastructure to perform Virtualization using VMWare ESX, vSphere on RHEL/SUSE servers.
  • Worked on vRealize Automation which accelerates the deployment and management of applications and compute services.
  • Worked on Installation of VMware ESX and creating Virtual Machines from scratch and from templates and Assisted in troubleshooting applications for Load balancing.
  • Deployed and Configured Automation tools like Puppet, Blade logic, Ansible and Chef.
  • Worked on configuring Puppet master servers and installing Puppet client software on Linux servers.
  • Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure.
  • Worked on Installation and Configuration of Chef Server and Chef-client
  • Deployed and maintained infrastructure using Chef cookbooks and recipes
  • Configured yum repository server using Chef on RHEL 5/6.x in VMware environment.
  • Experience working with Client Server Automation HPSA.
  • Troubleshooting and performance tuning issues with applications like Oracle 10g, MySQL 4.x, WebLogic 10, MQSeries 6.x, Condor apps & Java Applications on operating systems which included Solaris and RHEL.
  • Worked on Shell & Python scripting.
  • Supported the systems hosted on Openstack, Helion.
  • Deployed and maintained the cloud based application environments running on OpenStack
  • Worked on Helion Nova compute and controller services.
  • Worked on Keystone identity service, Swift object storage service, Glance image service, Cinder block storage service and Networking service
  • Troubleshooting and log analysis for Openstack, Helion deployments.
  • Worked on tools like TCPDUMP, NMAP, analyzing TCP, SSL Handshakes
  • Configured Various Network services such as LDAP, NFS, NIS, DNS, NIS, NIS+ and Send mail in RedHat Linux, SUSE and Solaris servers.
  • Experience managing NFS shares and file systems from NetApp filers and EMC NAS devices.
  • Integrate Windows Active Directory with RHEL 7 Winbind, Kerberos, SSSD, REALM identity management
  • Use Microsoft SCCM Enterprise to deploy software packages to workstations and manage site roles for Windows 2012 servers.
  • Use NetBackup 7 for virtual machines disaster recovery in V - Sphere and Quantum Scalar i80 tape data.
  • Deployed virtual Linux RHEL 6.9 server to host ZOOM live recording software for CISCO VOIP phones.
  • Use Amazon AWS to deploy several ORACLE 12c RHEL servers in DEV/OPS Cloud environment.
  • Strong familiarity in VMware large scale server deployment practices and RHEL disaster recovery methods.
  • Good Automation practices with Red Hat Satellite Servers to deploy hundreds of applications i.e. SPLUNK, BesClient, Symantec, RSA Token authentication to new or existing AWS / VMware vCenter servers.
  • Lead engineer to design and Linux RHEL 7 with LVM and XFS file system to host SPLUNK Distributed Search Architecture for DOJ-EOIR, composed of multiple search heads and Clustered Indexer architecture
  • Configure Red Hat Identity Management (IDM) to use PIV Card user authentication access to all new RHEL 7.5 environment, and manage user Access Level Control (ACL) per role basis.
  • Improved entire Linux infrastructure efficiency by introducing Remote Command in Satellite servers to Provide security remediation for Nessus vulnerability scans in all RHEL servers.
  • Administer new company standard RHEL 7.1 for an Oracle Database environment.
  • Secure/lock down RHEL 7 OS using CIS Security best practices. Installed Oracle 12c in RHEL 7 servers.
  • Design and deploy virtual Windows Servers 2012, for a DevOps environment.
  • Managed scheduled Windows security patching with Shavlik.
  • Enhanced RHEL 7 server security compliance using Center for Information Security (CIS) benchmarks.
  • Deployed and managed NetBackup 7.7 Server and Quantum Scalar i80 Disaster recovery tape backup.
  • Use MYSQL queries for data mining local Linux databases.
  • Use VMware vCenter to deploy Linux CentOS 5.4 servers in a High Availability environment and use EM7 to create Dynamic Applications to monitor servers and network devices.
  • Manage V-Sphere, Esxi, to create Windows Servers and Red Hat servers.
  • Administer Active Directory, Microsoft IIS, Network Monitoring, LAN/WAN Networking, Group Policy
  • Use NAGIOS to monitor and set network alarms for Windows and Linux servers.
  • Provide SAN Management and disk replacement through EMC2 Storage Arrays Unisphere VNX interface.
  • Use Red Hat Satellite to remotely deploy updates and patch security vulnerabilities.
  • Managed security firmware upgrades for Dell PowerEdge R720 Servers with iDRAC6 and 7.
  • Use Microsoft SQL Server to execute scripts in collaboration with other teams to improve database functionality. Familiar creating EC2 T1 micro instances with Amazon AWS.
  • Successfully complete migration from Windows XP computers to Windows 7 Operating systems.
  • Configure Citrix, SCCM, CISCO Any Connect VPN, and Computrace clients on all workstations.
  • Use Windows Server2008 Active Directory in a multi-domain infrastructure to manage

Confidential, Dallas, TX

DevOps/ Linux Admin/Sr System Admin

Responsibilities:

  • Administration of RHEL 4, 5,6 and Solaris 9, 10 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting server issues.
  • Launching and configuring of Amazon EC2 Cloud Servers using AMI's (Linux/Ubuntu) and configuring the servers for specified applications
  • Installed and Configured Oracle ASR on total Solaris 10 Environment.
  • Actively involved in the puppet infrastructure to manage more than 4000 servers.
  • Written multiple manifests and also customized facts for efficient management of the puppet clients
  • Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers across ESX hosts.
  • Jumpstart Solaris servers, custom configure, install packages, patches, harden. Creating LDOMs, installing Solaris, creating volumes & installing packages.
  • Created Zetabyte file system (ZFS) in Solaris 10. Creating Zones, zpools and adding resources like network & file systems.
  • Creating LDOMs, installing Solaris, creating volumes, installing packages.
  • Solaris Live Upgrade from Solaris 8, 9 and old update from Solaris 10 newer update version across the whole environment.
  • Established continuous integration (CI) practices and standards.
  • Set up Jenkins server and build jobs to provide continuous automated builds based on polling the Git source control system during the day and periodic scheduled builds overnight to support development needs using Jenkins, Git and JUnit.
  • Automation of configuration and management through Puppet.
  • Lockdown the local accounts to secure the environment using NIS.
  • Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
  • Troubleshooting tickets, which includes storage, network, system related issues and logging in JIRA and BMC Remedy.
  • Installing and upgrading Redhat 5.x, CentOs 5.x, SUSE and Solaris 9/10 on Various Dell Hardwares.
  • Creating sparse root and whole root zones and administered the zones for Web, Application and Database servers and worked on SMF on Solaris 10.
  • Implemented and administered VMware ESX 3.5, 4.x for running the Windows, Redhat Linux and Ubuntu Servers on development and test servers.
  • Involved in managing SAN disks like EMC Clariions and VMAX using EMC Powerpath and Volume Management softwares.
  • Worked on configuring Puppet master servers and installing Puppet client on Linux servers.
  • Involved in automation by using Puppet and Chef master running on RHEL with around 100 clients
  • Wrote Shell and Python scripting to automate the regular tasks like removing core files, taking backups of important files, file transfers among servers
  • Responsible for Remote Linux Support with more than 600 servers.
  • Provided 24x7 supports on shift rotation basis.
  • Configured Redhat Linux servers for production, staging and test environments running Database and Middleware applications.
  • Installation and configuration of VM’s with Redhat LINUX servers running on Confidential & Dell HW.
  • Installed and configured SSH server on Redhat/CentOS Linux environments.
  • Installation and upgrade of Open SSH 4.3p1 on Redhat Linux, Open SSH 4.1p1 on Confidential &Dellservers.
  • Used Python programming in Linux platform to design the front-end portion of the plug-in.
  • Worked on redhat 4.x and performed daily tasks using CRON scheduler and automated it.
  • Configured Raid with the help of lead and created a LUN and Logical volumes from that.
  • Used Debian distribution of Linux called Ubuntu in my personal computer and used python 2.3.
  • Responsible for maintaining and configuring NFS, DNS, DHCP and iSCSI servers.
  • Creating application and database file systems using volume managers like LVM and VERITAS
  • Worked and Expertised in Red Hat Satellite 6.3 Infrastructure to manage hundreds of RHEL7 servers. Lead and mentor Systems Administrators how to automate monthly patching in large scale systems using Satellite 5.7 and 6.3 Configuration management tools
  • Ensure RHEL servers meet strong security compliance by utilizing Defense Information Systems Agency (DISA) and CIS Security Technical Implementation Guide (STIG).
  • Engineered a PowerShell script to find expired Windows DNS Records to apply Aging/ Scavenging policy.
  • Integrate Windows Active Directory with RHEL 7 Winbind, Kerberos, SSSD, REALM identity management
  • Use Microsoft SCCM Enterprise to deploy software packages to workstations and manage site roles for Windows 2012 servers.
  • Use NetBackup 7 for virtual machines disaster recovery in V - Sphere and Quantum Scalar i80 tape data.
  • Deployed virtual Linux RHEL 6.9 server to host ZOOM live recording software for CISCO VOIP phones.
  • Use Amazon AWS to deploy several ORACLE 12c RHEL servers in DEV/OPS Cloud environment.
  • Strong familiarity in VMware large scale server deployment practices and RHEL disaster recovery methods.
  • Good Automation practices with Red Hat Satellite Servers to deploy hundreds of applications i.e. SPLUNK, BesClient, Symantec, RSA Token authentication to new or existing AWS / VMware vCenter servers.
  • Lead to design and Linux RHEL 7 with LVM and XFS file system to host SPLUNK Distributed Search Architecture for DOJ-EOIR, composed of multiple search heads and Clustered Indexer architecture
  • Configure Red Hat Identity Management (IDM) to use PIV Card user authentication access to all new RHEL 7.5 environment, and manage user Access Level Control (ACL) per role basis.
  • Improved entire Linux infrastructure efficiency by introducing Remote Command in Satellite servers to Provide security remediation for Nessus vulnerability scans in all RHEL servers.
  • Administer new company standard RHEL 7.1 for an Oracle Database environment.
  • Secure/lock down RHEL 7 OS using CIS Security best practices. Installed Oracle 12c in RHEL 7 servers.
  • Design and deploy virtual Windows Servers 2012, for a DevOps environment.
  • Managed scheduled Windows security patching with Shavlik.
  • Enhanced RHEL 7 server security compliance using Center for Information Security (CIS) benchmarks.
  • Deployed and managed NetBackup 7.7 Server and Quantum Scalar i80 Disaster recovery tape backup.
  • Use MYSQL queries for data mining local Linux databases.
  • Use VMware vCenter to deploy Linux CentOS 5.4 servers in a High Availability environment and use EM7 to create Dynamic Applications to monitor servers and network devices.
  • Manage V-Sphere, Esxi, to create Windows Servers and Red Hat servers.
  • Administer Active Directory, Microsoft IIS, Network Monitoring, LAN/WAN Networking, Group Policy
  • Use NAGIOS to monitor and set network alarms for Windows and Linux servers.
  • Built and managed a large deployment of RedHat Linux instances systems with Chef Automation.
  • Implemented automated Experience with container-based deployments using Docker, working with Docker images, Docker Hub and Docker-registries and Kubernetes. local user provisioning VMs created in Openstack and AWS cloud through Chef Recipes.
  • Experienced Cloud and DevOps engineer in Automating, Configuring and deploying instances on AWS, AZURE Cloud environments and Data centers.
  • Involved working with a PaaS solution such as RedHat Openshift .
  • Supported 300+ AWS cloud instances running Ubuntu, Redhat and windows environments.
  • Design of Cloud architectures for customers looking to migrate or develop new PaaS, IaaS, or hybrid solutions utilizing Microsoft Azure or Amazon Web Services (AWS).
  • Working knowledge on Azure cloud IaaS and PaaS Services, Azure SQL, Azure storage and Azure Services.
  • Provisioned RedHat Enterprise Linux Server using PXE Boot according to requirements.
  • Design roles and groups using Azure Identity and Access Management (IAM)
  • Migrated SQL Server 2008 database to Windows Azure SQL Database
  • Configuring and Managing in Hadoop Clusters for Spark streaming jobs using Microsoft Azure and along with SQL.
  • Worked on Amazon AWS EC2 cloud services for installing, configuring and troubleshooting on various Amazon images like Amazon Linux AMI, Redhat 4.x, 5. x.6.x,7.x, Ubuntu 12.x, 13.x, 14.x, 15.x. Created and managed multiple Instances of Apache Tomcat and deployed several test applications in those instances in QA environment.
  • Created automated system to create VM's, storage accounts, Network Interfaces, etc. in Azure.
  • Enable your machine for Azure development by installing the Azure SDK.
  • Used Jenkins pipelines to drive all micro services builds out to the Docker registry and then deployed to Kubernetes, Created Pods and managed using Kubernetes
  • Building/Maintaining Docker container clusters managed by Kubernetes Linux, Bash, GIT, Docker, on GCP (Google Cloud Platform). Utilized Kubernetes and Docker for the runtime environment of the CI/CD system to build, test deploy.
  • Involved in development of test environment on Docker containers and configuring the Docker containers using Kubernetes
  • Provide SAN Management and disk replacement through EMC2 Storage Arrays Unisphere VNX interface.
  • Use Red Hat Satellite to remotely deploy updates and patch security vulnerabilities.
  • Managed security firmware upgrades for Dell PowerEdge R720 Servers with iDRAC6 and 7.
  • Use Microsoft SQL Server to execute scripts in collaboration with other teams to improve database functionality. Familiar creating EC2 T1 micro instances with Amazon AWS.
  • Successfully complete migration from Windows XP computers to Windows 7 Operating systems.
  • Configure Citrix, SCCM, CISCO Any Connect VPN, and Computrace clients on all workstations.
  • Use Windows Server2008 Active Directory in a multi-domain infrastructure to manage users and computers.
  • Configure Disk Encryption Software Checkpoint and FileVault to secure all federal mobile devices.
  • Install Parallels Virtualization for MAC OS X 10.9 and use CASPER Suite JAMF to deploy new images.
  • Design and deploy Linux CentOS 6.5 servers with multiple user accounts and Bio-Informatics software.
  • Worked on configuring and maintain Linux CentOS and RHEL Network printers and hardware.
  • Solid experience delivering on-site network, hardware, software, mobile-device support with great customer services
  • Experience working with security tools, SSH, SFTP, SCP, NMAP
  • Use VMware and Oracle Virtual Box for virtualization practices.
  • Strong experience with Host Anti-virus and Anti-spyware consoles.
  • Frequently assisted providing sales leads and technical expertise for proprietary software.
  • Utilize Linux shells scripting to automate services and increase productivity.
  • Good experience with a variety of routers and Firewall and network access controls
  • Fully capable to work in a mixed environment of Microsoft Windows Servers and Linux servers.
  • Experience managing software in Red Hat and CentOS platforms Linux and All Windows Platforms
  • Worked by using NMAP to scan network& host vulnerability.
  • Created several installation manuals and test guidelines using technical writing practices.
  • Configure Linux backup and VPN utilities to comply with security HIPPA standards.
  • Ensure technicians meet customer repair deadlines and maintain integrity with service level agreements.
  • Engaged field technicians to assist 24x7 emergency outages for Public Safety and Government contractors.
  • Utilize SharePoint 2007 to monitor customer account entries and provide SLA updates
  • Configured and tested CDMA / IDEN Network coverage for 3G & 4G customers using Falcon, Cellsite Finder, Netwatch and Clearwire.
  • Provided worldwide remote support to file and print servers at Wyndham’s Resorts and sales offices.
  • Responsible for NOC incident analysis and response. Experience with Cisco call Manager
  • Delegate and add group policies to users in Active Directory and Exchange 2003.
  • Used Proxy, and PCAnywhere daily to fix desktops, laptops and servers.
  • Instruct and coordinate employees with newly deployed Blackberry Enterprise Server.
  • Encrypt Executive financial data using SecureDoc through IPSec using CISCO VPN.
  • Utilized MAGIC as ticketing tool.
  • Configure Netopia routers, and improve security protocol conversions from PAP to PPPoE
  • Perform Routers firmware updates to enable bandwidth to Voice/Data calibration.
  • Experience configuring DSLAM, Redback and Smartedge terminals.
  • Maintain customer data secured and router configurations according to Company security standards.
  • Use Active Directory/ Server Exchange 2003 to create and maintain network user accounts.
  • Configured 3Com and Bay Systems switches. Familiar with Backup Exec, SMTP, FTP, HTTPS, POP3, DNS
  • Install and maintain a high traffic POS, network printers, credit card machines and touch screen panels.
  • Configured digital/analog phone lines for entire company, and created voicemails with Nortel terminal.
  • Used Microsoft Project 2003 to control and administer multiple tasks and project deadlines.
  • Meet and advises management about the design and implementation, of network laboratories.
  • Audit and configured VERITAS Backup Exec 9.0 and NAS File Servers to provide daily data backups.

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