SUMMARY

• Talented, hardworking IT professional with over 5 years’ experience, proficient in hardware, software and security planning with focused on performance optimization and technical improvements with an understanding of cost - effective decision making and usability. Able to select, install, configure and manage components and Applications within the Linux and Windows environments. Dedicated, enthusiastic, and customer service-oriented individual with excellent interpersonal and communication skills.

TECHNICAL SKILLS

Operating Systems: Red Hat Enterprise Linux 5x 6x & 7x | CentOS 6x 7x | SUSE Linux | and Windows 2012/ 2016

Hardware: HP ProLiant DL 360 G8, 380 G5 and G6, Dell PowerEdge, R720, R420, Servers, Cisco ASR1001 Routers, Cisco ASA 5506-X Firewall, Cisco C3560 Switches, Cisco UCS C460/C220 M4, Dell Isilon NL400.

Database: SAP HANA | ORACLE | EXADATA

Protocols: HTTP, FTP, DNS, NFS/iSCSI, SSH, DHCP, TCP/IP, LDAP

Network: nslookup, dig, ping, ifconfig, netstat, tcpdump, tcpwrappers, iprouts . . .

Ticketing: PAC200 | Remedy | Quicksilver | Service Now | JIRA

Monitoring: Nagios | Centerity | EM7| Tivoli| Splunk

IAM Solutions: Centrify | Power Broker

Server Security: IP Tables | Firewald for rhel7x | Security Enhance Linux (SELINUX)

NAS and SAN: Storage experience

Virtualization: Red Hat KVM | VMware Hypervisors | ESXI 5x 6x - VSphere Clients | VMware Workstation | Oracle Virtual Box

Load Balancing: F5 load balancing solution

Shell Scripting: BASH.

PROFESSIONAL EXPERIENCE

Linux/Unix System Administrator/ Info Security Analyst

Confidential - Oklahoma City, OK

Responsibilities:

• Administered Linux servers Linux (Red hat - RHEL /5/6/7), for several functions including managing
• Apache/Tomcat server, mail server, MySql database, and firewalls in both development and production.
• Install and configure hardware and Linux software to all servers in the network per specifications of clients.
• Provided security consulting on complex issues related to data access and integrity in relation to server migrations from legacy security domain to new environment.
• Assisted customers in identifying security risks to their applications and implementing appropriate data security procedures and products.
• Working knowledge of security policies and government regulations pertaining to information security.
• Install and configure critical applications like; Oracle WebLogic, Fire-eye, ISAM, SiteMinder for Security and Single sign on solutions.
• Upgrade firmware and cable guides for both HP and Dell systems meeting company requirements
• Build typically RHEL clusters within VMware Hypervisor preparing a virtual environment for OS deployments.
• Automate VM deployments using bash scripts and VRA for increased productivity and elimination of errors during validations
• Coordinate and perform knowledge transfer and scrum to enhance skills and improve productivity
• Edit and improve knowledge base articles with information on resolved incidence, troubleshooting scenarios and helpful tips to ease the day-to-day tasks of an administrator.
• Build reports and host meetings to discuss critical breakdowns, possible root causes and proactive measures.
• Troubleshoot and resolve multiple OS and apps-based issues daily to ensure and maintain stable production environment, aligned with the production stability initiative
• Manage production web traffic using F5 load balancer integrated with LBMon, a home-grown application
• Closely monitor the web for logging, hung threads and other irregularities, as well as management of firewall rules using Splunk
• Plan and execute changes following the ITIL change management outline
• On-call production and application client support on high priority issues affecting end users hence impacting business.
• Run patch maintain ace on prod and non-prod environments as required by clients in compliance with corporate policies
• Improved on the ticket handling process using BMS Remedy which helped in reducing missed SLA’s by 20%
• Troubleshoot and resolve issues in customer’s environment running SUSE, Red hat and other flavors of Linux.
• Perform routine maintain ace in customer’s environment by installing required security updates and other software patches where necessary.

Linux/Unix Systems Administrator

Confidential - Oklahoma City, OK

Responsibilities:

• Assign and work on tickets using PAC2000 for adding/deleting user/app accounts from host groups, changing user/group IDs, changing user classes.
• Regular monthly maintenance of Linux servers by upgrading packages and other software with tools like yum, RPM and wget.
• Managing compliance with users/group ID policies for human and application accounts on red hat servers
• Managing permissions and file ownerships for users and application accounts
• Worked in collaboration with Database Team for provisioning and management of data using ETL tools like IBM WebSphere DataStage.
• Regular monthly maintenance of Red hat Enterprise Linux servers by upgrading packages and other software with tools like yum, RPM and wget.
• Adding multiple hosts to various assigned host groups using loop commands
• Migrating various hosts and apps from one domain to another using automated tools like puppet master.
• Mounting and monitoring NFS shares on red hat Linux servers
• Performs data management using native Solaris utilities for archiving and compression.
• Administers user accounts on Solaris 8, 9 and 10 servers. Customizes user environment and troubleshoots user logins using various remote login utilities.
• Performs administration and monitors job processes using associated commands. Very proficient in troubleshooting system problems and ultimately solving them.
• Introduces new servers to the network, maintaining and troubleshooting network connectivity, firewalls and DNS hostnames resolution.
• Performs routine audits on systems performance, logs, capacity planning and system resource management.
• Perform system monitoring; cpu, memory, I/O, hardware, jobs scheduling and processes management.
• Create and extend physical volumes, volume groups. Resize existing logical volumes for additional space requirements.
• Installs, configures and hardens Solaris 8, 9 and 10 servers. Deploys various security tools such as Nessus, and intrusion detection devices to enforce server security.
• Manually test applications on various operating systems and browser platforms. Work with across departments to validate actual test results against expected results.

Linux Systems Administrator

Confidential, Oklahoma City, OK

Responsibilities:

• Installed, Configured and Maintained Linux Servers.
• Managed Linux user accounts, groups, directories and file permissions. Installed packages with yum and rpm.
• Edited bash scripts for System service checks, Disk monitoring, application monitoring, Interaction with Ldap
• Performed remote system administration using tools like SSH, Telnet, and Rlogin. Performed Disk management with the help of LVM (Logical Volume Manager).
• Enhanced file system recovery, integrity and performance mode using VERITAS clustering. Configured and managed software RAID-1 and striping with parity (RAID-5).
• Provided the support of building the server, patching, user administration tasks, deployment and troubleshooting.
• Installed and administered VMware vSphere ESXi 5.1 and VCenter servers. Converted physical servers to virtual servers using VMware's Standalone Converter.
• Manage EC2 instances for high scalability, fault tolerance and elasticity and cut cost up to 20%. Incorporated Amazon Simple Storage Systems and Glacier storages for flexibility and on-time availability.
• Provided 24x7 System Administration support for Linux environments and resolved trouble tickets on shift rotation basis
• Monitoring system performance, tune-up kernel parameter, adding /removing /administering hosts, users, disks on DNS / NIS domain.
• Administrative tasks such as System Startup/shutdown, Backup strategy, Printing, Documentation, User Management, Security, Network management, dumb terminals and devices carried out.
• Preparing and Re-imaging of windows 7 and 10 operating system to new and existing computers
• Plan, test and migrated windows 7 to windows 10
• Adding users to active directory groups for shared resources
• Documented equipment repairs, upgrades, software installations, equipment assignment, and new purchases.
• Analyzed network and security requirements based on user access and workflow, maintain network and peripheral equipment using.
• Performed Active Directory tasks, firewall maintenance, and installation of new operating systems, and hard drives.
• Diagnosing and replacing computer resources such as Hard drives, Memory and others