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Linux/unix System Administrator Resume

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SUMMARY

  • A Multi - Platform System Administrator with 5+ years of experience in installation, configuring, monitoring, upgrading and maintaining Linux/Unix servers, software, hardware and related infrastructure. I also have strong analytical skills; able to work with network engineers, and developers of all disciplines to troubleshoot complex system-level issues. Currently seeking a position as a Linux/Unix Administrator/Engineer.

TECHNICAL SKILLS

Operating Systems: Linux (RHEL 6&7, Centos 6&7) Unix (Solaris, 10&11) Window 2008/2012 and VMware ESXi 6

AWS: can open and create EC2 instances, (RHEL 6&7, CentOS6&7 Ubontum) (windows 2008/20010/2007 ,install and configure software such as java, Git, Jenkins &Maven and access them remotely

Account Managemen t: Create, Manage, and Delete user accounts & directories | Create shares and assigned permissions

Web Servers: Apache Installations | Technical Analysis | Migrations | Upgrades |Multi-Platform Networking

File sharing: NFS| SCP| FTP | WINSCP | SAMBA | SFTP | RSYNC COMMAND

File systems: Create and partitioned HDD| Mount Points | LVM | ZFS | Directories

Troubleshooting: Server performance | Website performance | Hardware failure | Application & Services

Builds: VMware vSphere| Apache| packages | DNS |KICKSTART| NTP|

Server Monitoring: Nagios | HP System Management |HP Open View Performance Manager

Tools: Cron Jobs | Task Scheduler

Protocols: SMTP | ICMP | HTTP | HTTPS | TCPIP | DNS | DHCP

Terminal Emulation: SSH, RDP, TELNET, VNC

Scripting: Shell, javaContinuous Integration: Selenium

Continuous deployment - Containerization: Docker - Ecosystem and Networking

Containerization: kubernetes

PROFESSIONAL EXPERIENCE

Confidential

Linux/Unix System Administrator

Responsibilities:

  • Build, configure servers from scratch and provision to the network
  • AWS: can open and create EC2 instances, (RHEL 6&7, CentOS6&7 Ubontum) (windows 2008/20010/2007 ,install and configure software such as java, Git, Jenkins &Maven and access all installed operating systems remotely them remotely
  • Experience setting up and EC2 instances and accessing them remotely using putty an linux severs and can create a share file and access for a remote folder on widows 2008 | 2007 | 2010
  • Experience installing, upgrading and configuring Centos and Rhel, 6 & 7 using Kickstart Servers, PXEboot servers and Interactive Installation.
  • Installation and Configuration of Team Foundation Server (TFS) for Agile Team Projects.
  • Maintains the integrity and security of servers and systems
  • Responsible for creating and managing user accounts, resetting root password, security, rights, disk space and process monitoring in CentOS 6/7, RHEL 6/7 and Solaris 10/11.
  • Configures DNS, NFS, FTP, HTTP, NTP, LDAP, SAN, remote access, and security management.
  • Installs, upgrades and manages packages via RPM and YUM package management
  • Installs, configures and supports Apache on Linux production servers.
  • Administers and manage VMware Infrastructure Client & LDOM
  • Responsible for scheduling, monitoring and implementing patching
  • Experience Disk and Volume Managements, RAID, LVM, ZFS
  • Investigate events and problems to determine root cause
  • Experience in Version control with GIT, on linux | windows on VM and AWS, experienced with git basics and branching, merging, and rebasing
  • Experienced in solving Merge conflicts, build a war file,
  • Resolve System and process issue reported by Nagios.
  • Logging and tracking support calls with remedy and service now.
  • Managing infrastructure hardware peripheral devices and troubleshooting network issue
  • Risk management optimization with high level mitigation skills
  • Collaborate with network team to migrate firewall
  • Provide on-call Support by rotation to provide 24x7x365 support.
  • Collaborated with network team to migrate firewall and load balance rules from Citrix NetScaler to F5's.
  • Worked with developers and application team to build sites Centos 6.3 Centos 7 and Solaris 10.
  • Also exposed in transferring configured files between Linux servers using the rsync command
  • Experienced in pipeline projects using pipeline scripts
  • Experienced in source code management
  • Experienced with Jenkins pipeline both on VM AND AWS
  • Experienced in Continuous testing with selenium
  • Experienced in continuous development-containerization
  • Experienced in containerization using kubernetes
  • Containerization with Docker-ecosystem and network.
  • Managing infrastructure using puppets
  • Experienced in continuous monitoring with Nagios.
  • Devops on cloud.
  • Troubleshooting critical hardware and software issues on a day to day basis using ticketing system (Remedy).
  • Installing Victual machines on VM ware 6.4 and KVM's and using Kickstart to do the O's installations.
  • Opened tickets and worked closely with Oracle/RHEL Technical Support Team in resolving Web Logic and Linux Red hat issues by analyzing thread dumps and configuration files.
  • Installing, configuring Ansible as well as writing basic scripts on ansible playbook with Yml to automate application upgrade and deployment.

Confidential

Multi-Platform System Administrator

Responsibilities:

  • Installation and configuration of Team Foundation Server (TFS) and Veritas Storage Foundation Server
  • Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in RedHat Linux and Solaris.
  • Writing shell scripts to automate the administrative tasks and management using cron.
  • Experience in installation, configuration, backup, recovery, maintenance, and support of Several Unix/Linux Servers.
  • Experience in configuration of NIS, NIS+, LDAP, DNS, DHCP, NFS, LDAP, Automate, Sendmail, FTP, remote access, Active Directory, Security management and Security trouble shooting skills.
  • Analyze, troubleshooting, and resolve RHEL and Server HW, Network problems in a logistic Server environment.
  • Expertise in adding network printers and conducting day-to-day system administration, including backup/recovery in NAS environments.
  • Conducted AIX / Linux System security and auditing and did Performance Monitoring and Kernel Tuning.
  • Installed RHEL using kickstart.
  • Deployment of various NCI web applications using Apache, Tomcat and Jboss applications.
  • Providing support for NCI web applications, by upgrading, and restarting containers that are running slow.
  • Created, cloned Linux Virtual Machines, templates using VMware Virtual Client and migrating servers between ESX hosts.
  • Managed systems routine backup, scheduling jobs, enabling cron jobs, enabling system logging and network logging of servers for maintenance.
  • Performed RPM and YUM package installations, patch and server management.
  • Installed and configured Logical Volume Manager - LVM and RAID.
  • Documented all setup procedures and System related Policies (SOP’s).
  • Provided 24/7 technical support to Production and development environments.
  • Administrated DHCP, DNS, and NFS services in Linux.
  • Created and maintained user’s accounts, profiles, security, rights disk space and process monitoring.
  • Provided technical support by troubleshooting Day - to-Day issues with various Servers on different platforms.
  • Installing, configuring and updating puppets master and puppets agents

Confidential

Desktop Support / Junior System Administrator

Responsibilities:

  • Account Administration- Created user accounts and assigned permissions
  • Remote into user computers via SSH & RDP
  • Configured and managed network interfaces
  • Racked and added physical servers to network
  • Patched desktops. Laptops and servers.
  • Improve response time to technical issues by 23 percent.
  • Improve system performance by working with the development team to analyze, identify and resolve issues quickly.
  • Ensure data recoverability by implementing system and application level backups.
  • Reduce security breaches by 3 percent through detailed risk assessments, implementing solutions and authorizing new security standards.

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