Linux/unix Systems Administrator Resume
Dallas, TX
SUMMARY:
Demonstrated experience in the Information Technology industry including UNIX/Windows systems administration, database administration and field service engineering with extensive background in operating system/application installations and production support.
TECHNICAL SKILLS:
Operating Systems / Hypervisors: Oracle Solaris, IBM AIX, CentOS/RHEL Linux, Microsoft Windows 7, Server 2003, 2008, 2012, XenCenter, Hyper - V, VMWare
Application Servers: Apache Tomcat, Oracle Weblogic, Microsoft IIS, RMI, J2EE, ASP, .NET
Databases/Tools: Oracle11g RDBMS, Microsoft SQL Server, Dell Shareplex for Oracle, SQL*Plus, Enterprise Manager
Scripting Languages: Csh, Bash, Bourne
Naming Services: DNS, LDAP, Active Directory, NIS
Communication Protocols: TCP/IP, UDP, HTTP, HTTPS, SMTP, FTP, SFTP, SSH, DHCP
Productivity Tools: Jira, Microsoft Office, Visio, Project, SharePoint, Lync, Mattersmost, Jabber, Cisco WebEx
Server Hardware: Super Micro, HP, Dell
PROFESSIONAL EXPERIENCE:
Confidential, Dallas, TX
Linux/UNIX Systems Administrator
Responsibilities:
- Support Confidential as a service, (IaaS) environment by utilizing Jira’s for managing workflow, perform physical and virtual server builds for new and existing DC’s including RAID configuration, Linux/UNIX OS installation/configuration via Kickstart/Chef, IPMI configuration and Nagios monitoring setup.
- Other tasks include server reclaims, turn up switch ports, remediate server vulnerabilities by updating certificates, disabling weak TLS/SSL ciphers and updating operating system packages, troubleshoot server failures, participate in on-call rotations working tickets/escalations and update Chef cookbooks/recipes via Bitbucket/Git as requested.
Confidential, Richardson, TX
Technical Specialist IV
Responsibilities:
- Worked with the on-boarding team and the physical media team to ensure encrypted files are sent to clients successfully.
- Responsible for securing data transfers, following FTP and other basic data transfer protocols. Setup and configure data transfer application on UNIX, Windows and Mainframe system as required.
Confidential, Addison, TX
Systems Administrator
Responsibilities:
- Collaborated with onshore and offshore teams in knowledge transfer sessions for the development of System Maintenance Technical Documents covering PDM database administration including maintenance and backup procedures, application server administration and maintenance, change request submission and implementation, new server provisioning and decommissions, Windows server security update installation and associated application management, active directory management of delegated group organizational units and application server builds.
Confidential, Carrollton, Texas
Systems Administrator Lead
Responsibilities:
- Installed Oracle11g RDBMS software and configured databases on Solaris and Linux platforms for production, stage and development environments with approximately 10 yrs. experience.
- Installed middleware software, (Oracle Weblogic, Apache Tomcat, Microsoft IIS, RMI, J2EE/.NET) and configured application stack on Windows Server platforms for production, stage and development environments with approximately 5 yrs. experience.
- Performed operating system installations on UNIX and Windows Server platforms, configuring internal disk partitioning, network interfaces, external storage, users, groups, scheduled tasks and services. Approximately 5 yrs. experience on Windows Server platforms and 10 yrs. experience on UNIX platforms.
- Installed HP server hardware in test lab and utilized VMWare and Hyper-V to build virtual machines used for application server testing and POC’s.
- Automate routine maintenance and administration tasks using shell scripts and batch files on both UNIX and Windows Server platforms.
- Provided level 2, 24x7 production support including incident management prioritization and escalation for PDM application server environment with 15 yrs. of experience.
- Worked with team to duplicate PDM application server environment in virtual private cloud for divestiture project.
- Developed intermediate understanding of network components including firewalls, routers and switches.
- Managed Change Requests required for modification to production environment including RDBMS, middleware upgrades, patch installations and security updates.
- Maintained documentation on server hardware, operating system and application configurations.
- Managed Active Directory groups and shared folders including permissions on shares and NTFS folders as required for application servers.
- Incorporated Dell Shareplex for Oracle database replication software to provide high availability and utilized standby database for maintenance activities and disaster recovery.
- Established 3rd party vendor accounts, (Oracle, Dell, etc.) to enabled quick remediation of issues related to application installations, upgrades and errors.
- Formulated planned outage IT communications for system maintenance, application upgrades, hardware upgrades and operating system upgrades.
Confidential
UNIX Systems Administrator
Responsibilities:
- Automated operating system installation process by creating standard build and setup image server to perform loads over network.
- Configured and implemented Network Information Services, (NIS) to effectively manage users, groups, and printers.
- Evaluated and implemented EMC Networker tape backup solution and associated hardware for disaster recovery.
- Provided user and system support for CAD/CAE workstation environment.
- Setup shell scripts for routine system maintenance to add or remove users, restart hung processes and perform pre/post server backup processing.
Confidential, Dallas, TX
Systems Administrator
Responsibilities:
- Performed pre/post technical sales support for Landmark systems including planning for system resource requirements, storage, network integration and backup strategies.
Confidential, Dallas, TX
Senior Field Service Engineer
Responsibilities:
- Performed post-sales support for Versatec B/W, Color Plotting subsystems, including installation, maintenance and problem determination. Supervised and trained associate engineers.
Confidential, Dallas, TX
Field Service Engineer
Responsibilities:
- Performed post-sales support for Storage Tech Disk subsystems, Tape subsystems and High Speed Impact Printing subsystems.
Confidential, Richardson, TX
Electronic Bench Technician
Responsibilities:
- Performed diagnostic troubleshooting on memory, controller, processor and planner PCB’s to component level.