SUMMARY:

• Professional experience in Information Technology (IT) while working in a team environment, and contributing to an organizations overall success.

TECHNICAL SKILLS:

SOFTWARE: Windows 3.1/95/98/ME/2000/2003/NT/XP/Vista/7/8, Oracle/Sun Solaris 9/10, HP - UX 11i v2 (B.11.23), Red Hat Linux (RHEL)5/6, BizFlow Workflow Mgt. (v 10.1.5.0), Oracle 8i/9i/10g/11i, Sybase 12.5.3/15, SAS 9.1.x, Samba 2/3, Maven, Stellent 6.2/7.5, IBM WebSphere Application Server (WAS) 6.1, IBM WebLogic 6.x/8.1, Bugzilla, Tomcat, Sonarqube, Hyperion, Norton Ghost, Java Message, HEAT (Helpdesk Expert Automation Tool) 7/8/9, Queue/IMQbroker, Support Magic Solution, Remedy, HP OpenView, iquest, Memo, Finder, MS Active Directory, MS Visio, Mac OS, Vignette Web Portal, CA eTrust Access Control 8.0 & e-Trust Policy Compliance (EPC) 4.7.2/4.7.3, Putty, WinSCP 4.2.1, SSH Secure Shell 3.2.9, IBM z/OS (Mainframe) UNIX, PeopleSoft CRM, Salesforce, CentOS 5/6, Ubuntu

HARDWARE: Sun Ultra 1/5/10/60, Sun Enterprise 250/450/3500/4500, SunFire 280R/V880/V445/V490/T1000/T2000, Sun StorEdge A1000/D1000/A5200, StorageTek L200/L40/L80, SunBlade 1500, HP-UX Integrity rx 2660 Office Server (Itanium 2), Gateway ALR 8300, Dell Dimensions/Optiplex GX1-640/745, Dell PowerEdge 1950/2600/2900/2950/4200/ SC1435, HP Surestore Optical 300mx, Black Box, Symmetra Power Array/Extended Run (APC UPS), HP StorageWorks DAT72 (Digital Data Storage), HP PowerTrust II LR (2.0 kVA UPS & Battery), HP 9000 (L Class), Cisco VoIP Phones, ShoreTel560 VoIP Phones

PROFESSIONAL EXPERIENCE:

Confidential, Fort Belvoir, VA

LINUX CLOUD SYSTEMS ADMINISTRATION ENGINEER

Responsibilities:

• Interim Secret / Secret Security Clearance For Sensitive Position
• An integral member of the Army-National Defense CONSTELLATION Systems Integration (SI) Team Lead, supporting DTRA, US Strategic Command (STRATCOM) Center For Combating WMD (SCC-WMD) and the Standing Joint Force Headquarters-Elimination (SJFHQ-E) Operations overall mission of combating Weapons Of Mass Destruction (WMD) in the USA and around the globe
• Provide management, development, integration, testing, deployment and systems administration / operations of the architecture on Global Information Grid (GIG) and non-GIG environments
• Demonstrated the CONSTELLATION Platform and functionality to Congress (HASC House Armed Services Committee ) on August 20th, 2015
• Support DTRA J9 (Research & Development) / J9-ISA (Information Sciences And Application (ISA) Department in designing, building and securing the development and production environments as it transitions to its new High Performance Computing (HPC) Amazon Web Services (AWS) Public Cloud environment and DISA’s milCloud
• Respond daily to users for IT support services by providing IT support to users both onsite and in remote locations via VPN.
• Troubleshoot network, internet\intranet and wireless network connectivity issues
• Skilled at Testing and Validating Back-end scripts and Front-End / User Interface (UI) Level interactions using Newport Functional Test Cases, reporting defects / findings, preparing test reports, preparing test cases and reviewing software requirements
• Provide solutions on both unclassified and classified domains; DoD Information Network (DoDIN), DIA-owned Joint Worldwide Intelligence Communication System (JWICS) and World Wide Web (Non-DoDIN). Mitigate security vulnerabilities found in monthly scans.
• Provide cross-platform (Windows and UNIX systems) system and network administration functions to deter intrusion into the systems. Operation & Maintenance (O&M) of high availability production systems using vSphere HA software.
• Expert at providing accurate technical system documentation (Logging Into DoDs VPN And CM Environment Portal, etc.) - I type at least 50 Words Per Minute (WPM) and my skill comes in very handy when creating extremely long documents
• Create and Maintain an automatic and manual inventory of IT resources (software and hardware) that exist and do not exist within the organization
• Continuous Monitoring and Reporting, Big-Data Analytics Performance Optimization, Real-Time Vulnerability Assessment and Mitigation
• Personally install and maintain CentOS 6.6 on physical / virtual machine (VM’s) servers in development and production environments at both Engility and DOD / DTRA Data Centers
• Operating System installation, configuration and maintenance (YUM, RPM) as well as installation of supporting software and troubleshooting user and system issues
• Develop and monitor policies and standards for allocation related to the use of computing resources
• Proficient with developing and implementing individual VM’s with their own OSs (CentOS) for each of the following services: GitLab, Jenkins, Nexus Repo, Openfire, LDAP and Redmine
• Maintain smooth operation of multi-user computer systems, including coordination with network administrators
• Independently “stand-up” and maintain stacks of VM’s via VMware vSphere ESXi 6.0 OS and VMware vSphere Client 5.5 on a consistent basis on Intel-based hardware such as Dell PowerEdge T430 Tower Servers
• Followed recommendations and guidelines set forth by the United States Computer Emergency Readiness Team (US-CERT), NIST, CSRC
• Setting up administrator and service accounts, maintaining technical system documentation, tuning system performance, installing system wide software and allocating mass storage space
• Deploy and integrate 3 separate Continuous Integration (CI) Toolset (GitLab, Jenkins and Nexus Repo) VM Servers for development and production HPC environments
• Consistently liaised with other SI & Data Integration (DI) members and the Implementation teams in accomplishing the daily goals of the organization
• Assist with CentOS-Based Rapid Development Kit (RDK) 2.2, SIMP, TCRI and NEWPORT Installation within the DTRA Constellation Project
• Interact with users and evaluates vendor products; Tested and validated software enhancements
• Create and maintain patch management procedures and keep track of vulnerabilities using DISA’s (Defense Information Systems Agency) Plan of Action and Milestones (POA&M) tool
• Extending partitions in Linux while the OS is running (lvresize command)
• Makes recommendations to purchase hardware and software
• Adhere to the guidance identified in the National Institute of Standards and Technology (NIST) 800-40 Rev2 & Rev3 for Enterprise Patch Management Technologies
• Instrumental in the setup and implementation of Constellation’s Development / Production Configuration Management (CM) Environment (Unclassified//FOUO For Official Use Only ) Servers and VPN Access (Cloudbox Gateway and DITECH-U Network (DITEC Gateway))
• Unilaterally download, install, configure and implement GitLab, Jenkins and Nexus on DTRA’s Leo Constellation HPC Development / Production Servers
• Provide Tier 1 Support (Registration / User-Level Access / Account Requests / Permission Issues) in GitLab and Redmine within the CM Environment Portal to the DOD / DTRA staff, ALL SI / DI members, and the development community at large
• Aid Information Assurance (IA) by running DISA’s (Defense Information Systems Agency) security scanning tools, such as SCAP (Security Content Automation Protocol), and comparing the results with the STIGs (Security Technical Implementation Guides) document
• Monitor and respond to Issues (Trouble Tickets) submitted by Users in Redmine
• Create Wiki documents and upload Files within Redmine to assist Users on daily tasks
• Maintain and patch Servers on Non-DoDIN, DoDIN-Unclassified (NIPR) and DoDIN-Secret (SIPR) domains, which are based on Joint Information Environment (JIE) compliant architectures, which contain Puppet, Hadoop, MapReduce, Cloudera, OWF, Kafka, Scala, Accumulo, Storm and LDAP

Confidential

UNIX / LINUX SYSTEMS ADMINISTRATOR (SYSTEMS SUPPORT)

Responsibilities:

• Provided Systems Administration (operations and maintenance) of 120 Oracle/Sun Solaris, HP-UX and Red Hat Linux (CentOS, Ubuntu) based servers and networks, within an enhanced HPC security environment
• Configured and monitored Oracle/Sun Solaris server based operating systems (OS)
• Installed Solaris Recommended patch cluster
• Added and removed software packages as demanded
• Monitored processes using associated commands
• Monitored disk quota
• Installed Oracle Database (DB) on servers and ran SQL commands as necessary
• Performed User Account Administration; Create and run operational scripts as needed
• Monitored performance of servers using Teamquest Lite 7.4
• Followed recommendations and guidelines set forth by the United States Computer Emergency Readiness Team (US-CERT), NIST, CSRC, the UNIX Security Team, SANS Institute, etc.
• Provided phone and in-person support for Windows XP/Vista/7/8 OS, MS Office Suite 2003/2007/2010, MS Outlook/Exchange, HP/Dell/Sony hardware, printers and peripherals
• Answered customer and user calls, resolved all issues and logged all issues in a trouble ticketing system (Support Magic Solution, Remedy, Zendesk); Carried out TCP/IP troubleshooting
• Performed both hardware and software installations, as well as, replacing leased PC hardware
• Managed Cloud hosted accounts on behalf of our customers in the HPC ecosystem
• Demonstrated expertise in a Windows OS environment and advanced troubleshooting skills
• Troubleshot system issues via Remote Desktop Connection (RDC), WebEx and GoToMeeting
• Provided all tiers of technical support to various customer remote sites
• Installation of Netbackup; Monitored daily and weekly backups/recovery using Veritas Netbackup
• Provided pre-deployment information and post-deployment support to end-users
• Supplied accurate technical system documentation to include, but not limited to: Standard Operating Procedures (SOP), and Privileged User Guides (PUG)
• Coordinated with software and hardware vendors as required
• Assisted with Information Assurance (IA) functions including routine system audits and reviews, testing of Information Security (IS) policies/plans/procedures
• Excellent oral and written communication, prioritization, time-management, and multi-tasking
• Flexible, adaptable, and able to deal with ambiguous situations on a constant basis

Confidential, Baltimore, MD

UNIX SYSTEMS ADMINISTRATOR, ESEF/OCOMM

Responsibilities:

• Security Clearance For Sensitive Position
• Supported the SSA Enterprise Software Engineering Facility (ESEF), & Office of Communications (OCOMM) system operations OSCAR Project
• Aided the SSA Office of Enterprise Support, Architecture & Engineering (OESAE), DESEI, & Enterprise Unix WebSphere Infrastructure Branch (EUWIB) with their Sun Solaris and HP-UX servers within the HPC environment
• Hardened Sun, Ubuntu and HP-UX systems…Server build, change and problem management
• Updated systems with patches and patch BUNDLES
• Unilaterally downloaded, installed and configured CA eTrust Access Control 8.0 & CA e-Trust Policy Compliance 4.7.2 / 4.7.3 software for the OCOMM / OTSO UNIX user accounts
• Performed tape backup and tape rotation activities as needed in the HPC data center
• Independently installed and configured HP-UX 11i v2 (B.11.23) OS and Oracle 10g on servers
• Ensured that BizFlow, eTrust, Oracle and all applications were functional
• Assisted the Unix Critical Alert Team (UCAT) & Unix Security Team (UST) with administering all US-CERT requirements
• Shared information with customer to build understanding and trust
• Tested, troubleshot, documented and reported specific system and application errors on all servers
• Followed risk model policy and incorporated security controls and compliance measures
• Highlighted key positive and negative system performance issues, & determined causes
• Enhanced business/mission critical systems to successfully pass rigorous OTSO auditing processes
• Tested and validated software enhancements
• Commended by SSA OCOMM for delivering technically and coming through for them “in a crisis”
• Assisted Java Developers with building and managing Java-based projects with Apache Maden software, which made the build process easy, and allowed for transparent migration to new features
• Liaised with software / hardware vendors as needed

Confidential, Washington DC

UNIX SYSTEMS ADMINISTRATOR

Responsibilities:

• Installed, maintained, and configured Sun Solaris 9 and 10 on lab and production SUN SPARC and x86 systems
• Initiated the monitoring and capturing of file system data for space and performance reasons
• Performed daily tape backup routines using Symantec/Veritas NetBackup 6.0MP6 (Administration Console)
• Maintained resource availability in the HPC environment using Veritas Volume Manager 4.5
• Developed and maintained written documentation on all the steps, processes, and procedures used in daily tape backup routines
• Performed tape restores of files for users using Symantec/Veritas NetBackup 6.0MP6 (NetBackup Client); “unfreeze” frozen backup tapes
• Maintained / retained weekly historic data on all file systems for all Solaris servers
• Provided and maintained current documentation on the method(s) used to capture and report file system data in the company’s HPC environment
• Installed desktop LDAP tools for LDAP 5.1 (iPlanet Console 5.1) and LDAP 6.2 sufficient for managing user and group accounts
• Created user and group accounts in LDAP 5.1 and LDAP 6.2 (Java Web Console)
• Provided and maintained current documentation on the method(s) used to add users to OPEN LDAP and to report on LDAP data
• Modified and deleted LDAP information using non-production (test) accounts
• Maintained usability of the Business Continuity Site (BCS)
• Verified tape backup data for off-site storage is restorable for Disaster Recovery
• Set up new LDAP accounts for Unix according to ICI standards and test for successful Unix access
• Created and modified shell (scripts) login files (e.g., .profile, .bash profile) and environmental variables for new users according to ICI standards
• Responded to new security threats by evaluating the risk versus loss of functionality
• Established and maintained a constant open line of communication with developers, DBA’s, other system administrators, and end-users

Confidential, Maryland

IT SYSTEMS ADMINISTRATOR

Responsibilities:

• Primary technical contact for customer sites
• Responded to hardware and software trouble calls from users
• Researched and provided technical guidance and solutions
• Provided end-user software and hardware training
• Performed QA tests with the application development and operations management teams to resolve all client application issues
• Liaised with and assisted other Systems and Network Administrators with monitoring the conditions of over 40 different servers in the organizations High Performance Computing (HPC) environment, fixing malfunctioning PC's, etc.
• Provided users with login information (Login ID, Password, Domain, Agency and Unit number)
• Assisted with the interviewing and hiring process of graduate students, IT Support Specialists, and other IT Coordinators
• Validated that new application development worked in all user environments (production, training, testing), and that all links and databases worked correctly
• Assisted all users with the download, installation, and implementation of the Citrix Web Client
• Tested, documented and reported specific utilities errors within all applications
• Terminated Citrix sessions with the Citrix Management Console (Ver. 1.3)
• Enabled and reset all passwords and credentials for Citrix, HATS and SMART users
• Created agency and security account administration in Hats (Login Access, Permissions, Active Status)
• Assisted with writing training manuals and documents for users
• Coordinated with the technical, systems, programming and training support team in accomplishing the daily goals of the organization
• Provided remote technical assistance to users via Check Point VPN-1 SecureClient, Citrix Shadow, and WebEx Remote Support
• Maintained software and hardware inventory; hardware and software rollout/deployment
• Used problem-tracking software to assign, track, and escalate problems