SUMMARY

• Information Systems professional with a solid work history in diverse technical environments
• Extensive experience in building and maintaining servers, networking equipment, customer support, documentation, troubleshooting, workstations and quality control
• Over 4 years of experience working with Unix and Linux environment, with over 7 years in IT services.
• Ability to manage Linux severs by CLI with a strong understanding of common Linux server applications.
• Ability to work effectively as a team member.

TECHNICAL SKILLS

• RHEL/CentOS 6.x and 7.x, Windows 2008/2008R2 and 2012/2012R2 2016 Servers, Mac OS x86 Platform, PPC & Intel Apple Hardware, Dell Server PowerEdge 200’s, 300’s and 400’s, C6100, NetAPP SAN
• HTTP/HTTPS, DNS, DHCP, LDAP/OpenLDAP, FTP, NFS/AutoFS, NTP, Apache/Nginx, Nagios, Samba, Mail Servers (Postfix and Dovecot), PXE, Mirror/REPO, LAMP Stack, Ansible, Wiki, HAProxy,
• Wireshark, ping, tcpdump, telnet, netstat, traceroute, nmap, tcpwrappers, LAN/WAN
• Firewall, Iptables, ACLs, File permissions, SSH, SSL
• VMware ESXi 5.x and 6.x, Linux KVM’s
• MySQL, MariaDB, PHPMyAdmin
• Bash and Basic Python
• Ansible, Git, Jira, Nagios.
• AWS EC2,
• LVM (Logical Volume Manager)
• Basic network configurations, Routing, Binding and Bonding, Network Layers, Network Devices, TCP/UDP Protocol

PROFESSIONAL EXPERIENCE

Confidential

System Administrator

Responsibilities:

• Accountable for IT system build deployment, monitoring and troubleshooting. Determine and develop automated ways to build systems preferably from a command line and provide a consistent user experience regardless of data center or compute platform.
• Perform typical vulnerability fixes on Linux systems on all NTP servers across the system using puppet.
• Author detailed design documents, installation procedures installation and qualification tests and SOPs. Document, install configure, test and validate IT infrastructure, applications and tools.
• Responding to technical queries via ticketing system (JIRA)
• Refactor kickstart templates on foreman that provisions hosts in all data centers.
• Ability to work independently and as part of a team Qualifications.

Confidential, Manassas, VA

System Administrator

Responsibilities:

• 24x7 on call rotation
• Perform standard system administration tasks such as patching, software and hardware upgrades, troubleshooting and problem resolution.
• Monitoring the health and status of the Windows/Red Hat Enterprise Linux (RHEL) servers via Nagios.
• Installing, configuring and maintaining to a high availability RHEL 7 servers in a mission critical environment
• Installing and configuring redundant DNS servers in order to increase efficiency of network exponentially.
• Installing and configuring VMware ESXI server instances, deploying and creating VMware virtual guests running Linux, Unix and Windows.
• Documented troubleshooting materials material for each problem solved for the company database.
• Configured firewall and SELinux settings
• Responding to technical queries via ticketing system (JIRA)
• Responding to VMware virtual machines running on Linux.
• Creating, administering and mounting Logical volumes.
• Creating users with limited and full root privileges. Creating and managing sudoers.
• Maintaining and operating setup schedule work (Cron and at)
• Setup of NFS and Samba file sharing services on Linux and Windows environments
• Defined and performed system backups and recovery procedures.
• Creating scripts to automate daily simple tasks while scheduling those tasks in the system.
• Installing and configuring Ansible, installing and configuring packages using Ansible, Writing and deploying various playbooks.
• Developing Linux shell scripts to accomplish redundant tasks to simplify in distributed Administration
• Providing installation, configuration along with maintaining services such as Apache, MySQL
• Building and implementing redundant and scalable load balancers with HAProxy. Booting PXE from RHEL Satellite Network and Centos Spacewalk for unattended Linux server deployment (Manual and automated Kickstat RHEL servers installation).
• Worked with Windows AD and open LDAP to manage users and group policies, add serves to authenticate with LDAP.
• Providing customer services and application support to call center end - users.

IT Help Desk

Confidential

Responsibilities:

• Serve as the first point of contact for customers seeking technical assistance over the phone or email
• Participate in a 24/7 on-call rotation.
• Consistently provided superior quality, timely problem solving to callers and emailers.
• Setting up of conference facilities (video and tele-conferences) and provided technical support.
• Perform remote troubleshooting through diagnostic techniques and pertinent questions
• Determine the best solution based on the issue and details provided by customers
• Walk the customer through the problem-solving process
• Direct unresolved issues to the next level of support personnel
• Provide accurate information on IT products or services
• Record events and problems and their resolution in logs
• Follow-up and update customer status and information
• Pass on any feedback or suggestions by customers to the appropriate internal team