Sr Linux Admin / Application Support Resume
Washington, DC
SUMMARY
- Experience with Deploying/Monitoring, and Application on servers.
- Linus /UNIX System Administration, Red Hat, RedHat, Create/Manage User Account, Create/Manage File Systems, Hardware/Software Break - Fix, VERITAS, Net Back-Up, Cluster Servers, Patch Management, Performance Management, Excellent Technical and Interpersonal Skills.
- Configure and built Red hat Linux machines, Create user accounts, set Kernel Parameters.
- Work with Project managers, business Analysts and Business Intelligence people
TECHNICAL SKILLS
HARDWARE: X86 architecture, E250, E3500, E4500, E5500 and E6500, Windows, Bladelogic Servers, Dell WInPower 9000
SOFTWARE: RedHat 6,7,8,9,10 Red Hat Linux, OSSEC and NAGIOS monitoring tools, Windows 2000 professional, Windows XP, Windows NT 2003 server, Team quest 7.4, Solstice disk suite, VERITAS Volume manager, VERITAS netback up, Apache, PHP, SSH, TCP-Wrappers, SUD, Tiger, Perl, Shell, MS Access, UNIX, Windows NT, and MYSQL under Windows/Unix, Lotus notes, Common Store for Lotus Domino, Lotus Symphony, VMware, KVM (Kernel based virtual machine) . LAMP stack, Hadoop, Splunk, MySql Database, Oracle, Puppet, Chef, Ansible . Remedy BNC, Service Manager, Varnish, Drupal, Solr. Weblogic and Websphere, Jboss
LANGUAGES: Shell Programming, Java, JavaScript, Visual Basic, C/C++, Ruby, Bash, Perl
PROFESSIONAL EXPERIENCE
Confidential, WASHINGTON, DC
Sr LINUX ADMIN / APPLICATION SUPPORT
Responsibilities:
- Responsible for installation, configuration, network security and overall maintenance of VMware and Virtual Linux Red Hat Servers
- Installed and Configured Redhat 4.5, 5, 6 OS
- Installed Sun recommended patch cluster
- Performed TCP/IP and Network configuration on the servers
- Built and configured VM LINUX servers
- Provision VM servers for customers
- Manage and monitor processes
- Coordinate patching of servers and monthly maintenance
- Install and configure Jboss domain controller/environment
- Administer Drupal and Drush
- Deploy several nodes into jboss
- Deploy multiple application into jboss
- Create and manage user accounts in Linux machines
- Create file systems
- Install and configure MySQL servers
- Install and configure tomcat and Nginx
- Install and configure Global file system
- Automate backup by rsync
- Install geoportal, geoserver and geonetwork
- Configure MySQL replication between Master and Slave
- Configure Solr replication between Master and slave
- Write multiple scripts
- Installed Host attached disk Arrays
- Performed hardware administration
- Administered Logical Volume manager in RedHat
- Created VERITAS file system and mount points for oracle database
- Bash shell Scripting, and scheduling of cron jobs using the cron utility
- Integrated Linux NT servers through Samba software
- Administered User accounts on Linux RedHat servers
- Customized user environment for users
- Administered User accounts on Red Hat Linux
- Deploy module for WebSphere
- Create and configure standalone servers
- Administer network deployment
- Manage message platform manage Web servers with WebSphere
- Manage console in a cell topology
- Enable tracing on specific components
- Examine log activity
- Locate relevant log files
- Troubleshoot/fix NFS, TCP/IP, net backup issues
- Administered NFS on Red Hat, and Linux server.
- Troubleshoot network connectivity issues
- Performed patch administration
- Administered Apache web server.
- Migrated and upgraded web server on new hardware
- Customized user environment for users
- Administered User accounts on Red Hat Linux
- Set up a Net backup master and media server
- Configured devices in Net backup
- Troubleshoot policy issues
- Troubleshoot backup window issues
- Tracked and fixed problems using systems logs
- Tracked disk space on servers using shell scripts
- Implemented file system for Oracle software and database
- Configured Linux kernel parameters for Application installation
- Monitoring ticket trafficking with REMEDY
- Install and configure MS SQL server
Confidential, HOUSTON, TX
Sr UNIX/LINUX ADMINISTRATOR/ENGINEER
Responsibilities:
- Maintain and configure servers, networks and other data center equipment
- Install and configure Multiple Virtual machines and LAMP STACK
- Configuration Management with Puppet
- Responsible for RedHat Linux RHEL5, RHEL6, RHEL7 on VMware in an 800 Server Enterprise environment.
- Design and build RedHat Linux servers for Enterprise application
- Perform Kernel tuning and performance tuning to provide highly available Production, Quality Assurance and Development environments.
- Responsible for OS patching, service pack updates on Enterprise RedHat, Centos and Suse Linux for PCI and SOX compliance.
- Deploy/upgrade server applications and software platforms
- Design/implement system redundancy, failover and disaster recovery
- Complete File Management maintenance
- Monitor and respond to system alerts and outages on a 24x7 basis
- Troubleshoot data center issues from inception to remediation
- Assist in plan and build-outs of new data centers or data center expansions
- Establish/recommend policies on system use and services
- Linux scripting
- User management
- Patch management
- Set up performance monitoring with Team quest
- Experienced in VMware, LDOMs
- Installation and management of virtual machines, configure virtual IP address, and virtual interphases.
- Performed Systems Security Administration by restricting access to server terminals, monitor and capture failed and successful login attempts, restricting access to ssh and ftp, granting permissions and ownerships to files and directories and role base access.
- Install and configure Puppet and Introduced Ansible to New Environment
- Set up AMAZON WEB SERVICES instances
- Managed AWS instance EC2 and storage EBS
- Took weekly calls, checked server uptime, troubleshoot errors and escalated where necessary.
- Installed and Configured Team quest 7.4 for performance monitoring.
- Administered Backup/Restore Using VERITAS net backup
- Implemented IBM ITCS 104 security standard.
- Worked with IBM security admins to Implement ITCS 104 and GSD331 standards.
- Technologies: Sun, VERITAS, KORN shell, SUDO, TCP wrappers, Oracle, BSD, Red Hat Linux, KORN Shell
- Install and configure RedHat OS
- Install and configure Red hat OS
- Install and configuration Cisco router
- Setup Firewall rules
- Preparing and exporting an enterprise application for deployment
- Deploy applications in clustered environments
- Create a deployment manager profile
- Patch Red hat/RedHat servers
- Install and upgrade JDR and JDK from version 6 to 7.
- Log monitoring process
- Create and manage user accounts install new servers/VM ware and systems design
- Configure KVM on Linux X86 Hardware.
- Manage multiple windows and Linux machines on KVM
- Monitor and Manage CPU performance, Networking and Storage on KVM.
- Creating zones and zones clusters.
- Monitoring ticket trafficking with REMEDY
- Install and configure OSSEC and NAGIOS Monitoring tools
- Worked with network configurations to include knowledge of switches and firewalls
- Built Red hat Linux machines
- Configure Networks Security
- Experience with change management and standard processing
- Manage and assist developers in a Red hat OS
- Created VERITAS file system and mount points for oracle database
- Performed security administration and monitored job processes using associated commands.
- Execute scripting in a production environment
- Daily maintenance and operation of Red hat 5 and RedHat 10 severs
- Install and configure WebSphere Application Server V7
- Configure WebSphere Application Server security
- Deploy applications in clustered environments
- Monitor performance information about server and application components
- Troubleshoot problems Using determination tools and log files
- Configure messaging with the service integration bus
Confidential, IRVING TX
Linux System ADMINISTRATOR / Dev Ops
Responsibilities:
- Log monitoring ( Wintel and Unix servers)
- User account access control
- Installed and configured OSSEC Monitoring software
- Monitor and Investigate Suspicious activity in the Activity Log
- Server vulnerability patching
- Performed User and group management in an LDAP Infrastructure.
- Deploy and administer both physical and VMware virtual Linux systems and instances.
- Handle off hours notification and alerts for infrastructure monitoring of both SAN Storage and Unix and Linux Servers.
- Initiated and implemented RedHat Linux Kickstart server to allow unattended server installs.
- Perform kernel tuning as required.
- Ticket trafficking through Service Manger (SM)
- Use PCM in scheduled monthly scan on production servers for Security Compliance
- Provisioning, deployment and administration of both physical and VMware virtual Linux systems.
- Recompiled custom Linux Kernels, perform Kernel tuning and maintenance as required
- Researched, managed and carried out system maintenance and upgrades.
- Performed system patch and software analysis, installs and configuration.
- Responsibilities for user and group administration as well as LDAP and Active Directory duties.
- User account management (Add new IDs, reset passwords)
- Privileged account management (root/Administrator passwords)
- Maintain memberships in critical SU groups
- Review active user IDs
- Review groups and group memberships
- Review proposed new SW installs for security implications
- Install/configure recommended security-related software
- Coordinate storage and protection of PKI keys, certificates
- Review/standardize baseline server hardening policies
- Recommend and implement solutions to identified security exposures
Confidential
Jr LINUX Administrator / Application Support
Responsibilities:
- Create and manage users account
- Monitoring application process
- Establishing new security processes
- Killing/pausing running processes
- Viewing process logs on Linux machines
- Configure SPARC servers
- Install and configure RedHat
- Expert in ticket trafficking with REMEDY
- Enterprise monitoring REMEDY
- Manage files with AUTOSYS
- Support hundreds of applications with AUTOSYS
- Installed Sun recommended patch cluster
- Performed hardware administration
- Work on and installed Blade Servers
- Execute scripting in a production environment.