Linux/unix System Administrator Resume
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.