OBJECTIVE:

Seeking a Sr. Linux/UNIX Systems Administrator/Cloud Engineer position to provide full life cycle of support (including researching, designing, building, integrating, and managing) networks, computer security and systems infrastructure running on Linux/UNIX based platforms supporting mission critical applications in the Intelligence Community arena.

SUMMARY

I currently possess 24 years of experience in UNIX/Linux System Administration and System Engineering in researching, designing, documenting, installing, and maintaining various networks within various government contracts and the Intelligence Community) including mission critical systems support and sustainment of signal intelligence systems (6 years). I have experience integrating software on various systems within a large - scale project and in gathering and authoring requirements, acting as a liaison between government and contractor, researching, developing, and maintaining complex systems including support for signal environments.

TECHNICAL SKILLS

Operating Systems: Red Hat Linux 8.0/Enterprise v4/5/6, CentOS v5/6, VMware ESX Server v4.0, SunOS v2.X, Solaris v8/10, AIX v4.2.X, IRIX v6.X, HPUX v9.X/10.X, Network Appliance ONTAP v7.X, Cisco IOS, Windows XP/2003

Hardware: Dell 1950/2950/DL360, SUN E10K/880/v240/4800/Ultra X/Blades/3000/v240/ M5000/X4100/etc, Dell PowerEdge 2850/6850s, Sun hardware, IBM RISC UNIX servers, SGI UNIX servers, HP 9000 series servers, HIPPI/FDDI/Ethernet Interfaces, HP Blades, StorageTek 9714 DLT Jukeboxes, StorageTek robot tape libraries, Overland NEO 2000 tape autoloaders, Cisco Routers/Switches, Exabyte 8mm Tape Stackers, HP/SGI/Sun Storage Arrays, Terminal Servers, console/remote KVMs, SAN/Brocade Storage/switches, Netapps (Network Appliance devices)

Software: Cloudera Hadoop, Puppet configuration manager, LDAP, DNS, NIS, NIS+, NFS, Eborder/Portus and G2 Sidewinder firewall, Remedy Helpdesk, Veritas Volume Manager, Linux Kickstart, Solaris Network Jumpstart, KVM (Kernel-based virtual machine), SecScans, Netscape Enterprise Server, OWF (Object Widget Framework), Jboss, Tomcat, Apache Web, PKI, SSL, YUM (Linux), SSL, Sybase ASE/Replication, Nagios and Big Brother monitoring tools, NCDware Xterm Server, Flexlm License Manager, Tivoli System Management, AMASS Storage Management, Eagle-Raptor Firewall, HP Openview, Postfix/Sendmail Servers, Netbackup/Legato Network/ADSM/Budtool Backup software, Clearcase, ClearDDTS, Secure Shell, Xrunner/Loadrunner, JetAdmin/JetDirect, DiskSuite, and other COTS administered, Active Directory, DHCP, Internet Explorer, Mozilla

Database: Sybase ASE/replication 11.1.X/12.5.0 (served as admin), Oracle, MySQL

Programming Languages: Bourne/Korne shell, Perl, Ruby, Pascal

PROFESSIONAL EXPERIENCE

Confidential, Tysons Corner, VA

SENIOR CLOUD ADMINISTRATOR/ENGINEER

Responsibilities:

Provided research, development, integration, testing and evaluation in support of managing Cloudera Hadoop cloud cluster enterprise for current and future releases. As a senior member of the information services center operations team, provided system administration and engineering support to a Linux Cloud based software development and production environment using Accumulo as a key/value store. Primary focus was to support the Ghost Machine (GM) Data Analytics cloud portion of the production, development, and pre-engineering environments. Perform administrative and engineering tasks using various troubleshooting techniques within the GM cluster to get cluster functioning properly to achieve authorization to operator status. Worked closely with ONI Management, Systems Engineers, Application Developers, Networking team, Database teams to insure that all production servers within the cloud were highly available and performing within service levels. This included the administration and maintenance support of all services and cloud servers. Maintenance and support includes: monitoring and analyzing system/application activity and performance, providing system access control, making recommendations to proactively avoid system/application outages, implementing improvements to the system/application to prevent degradation of performance, administration, setup, and configuration for RHEL/Centos Linux (version 5 and 6) based systems running Hadoop cluster. Managed several storage technologies including network storage devices Network Appliance (Netapps), network file services (NFS) for remote machine store, Storage Area Network (SAN), and RAID configurations (RAID level 0,1,5,6, and 10) for hardware redundancy on servers and NetApps. Provided engineering, operations, maintenance, and system administration for the various tools and systems. This included daily operations, configuration, hardware failures, modifications, upgrades, patches, and new versions to keep servers up to date. Provided technical support for each of the following Infrastructure Support areas: System Management, Recovery, Trouble Calls, Account Management, Configuration Management, and Enterprise Systems Support. Physically installed hardware in racks and cable accordance with specifications. Provided security test support for preliminary security assessments and Certification and Accreditation (C&A) of information systems and for independent testing and verification of systems as needed. Worked in conjunction with other agencies using DoD agency's tools, systems, reporting mechanisms and requirements for C&A. Executed SecScans to locate vulnerabilities on servers. Performed mitigation of IAVA findings to maintain security compliance of systems. Hardened Linux servers to comply with security per regulation. Ensured all cloud nodes maintained a correct information assurance posture through automatic remote pushes or updates from a centrally controlled and proactively managed Puppet configuration. Responsible for performing backups (and restorations) of essential cloud components producing backup schedules, backup methods, developing a disaster recovery plan, and contingency plan. Maintained YUM software repository for remote software installation, DNS, and RHEL/CentOS Kickstart servers. Also maintained LDAP User environment by creating/deleting accounts, managed groups, creating PKI certificates for users, managing password policy enforcement management, and performing backups of LDAP user databases and hierarchical structure. Managed SSL (Secure Socket Layers) and PKI server certificates for secure communication and authorized access to various online services. Managed web based services running Apache, JBoss and Tomcat services. Managed VMWare VMs (virtual machines) and Linux KVMs (Kernel-based virtual machines) used for various server functions. Wrote shell scripts for automation purposes and modified Ruby scripts accordingly for configuration management through Puppet. Built Red Hat RPM software package for automation of software installs. Supported Widget user applications environment used in the Ozone Widget Framework (OWF). Developed and updated technical administrative and user standard operating procedures. Ensured scheduled milestones were met, provided weekly activity reports, and attended bi-weekly meetings and briefings.

Confidential, Hanover, MD

DEPLOYMENT SYSTEM ADMINISTRATOR/ENGINEER

Responsibilities:

Provided leadership and vision for re-engineering of systems, major system elements, and interfacing systems including network configuration, backup solutions (Netbackup w/Sun Tape library), NAS storage device Netapps, central user authentication (LDAP) system build design (including Red Hat Linux systems), and overall capacity planning. Performed definition of systems, trade-off and design activities. Guided system development and implementation planning through assessment or preparation of system engineering management plans. Assessed current system architecture environment, plan and implementation for use by system test and development environments. Provided input to the redesign of the network based on requirements provided by the customer and user input. Implemented design and tested integration with current system. Documented detailed system architecture providing documentation for overall operations and system design documentation. Assured communications between the various systems and system performed at acceptable levels. Developed test plans for verification of system and training purposes. Develops system configuration documentation, including detailed designs for capacity planning, security systems and disaster recovery. Performed system audits to ensure intended system functionality and Security Scans to assure agency compliance. Assisted in planning the next generation system. Performed installations (i.e. building and using Kickstart) and upgrades on various systems including firmware and operating systems. Performed and/or oversaw daily backup operations, ensuring all required file systems and system data are successfully backed up to the appropriate media, recovery tapes or disks are created, and media is recycled and sent off site as necessary. Developed methodology to expand flexibility of programs or systems to meet changing needs of user departments and to accommodate future expansion without necessitating a major redesign of the systems at a later date. Provided technical guidance to less experienced systems administrators.

Confidential, Fort Meade, MD

SENIOR SYSTEM ADMINISTRATOR/SUSTAINMENT ENGINEER

Responsibilities:

Provided support by implementing, troubleshooting and maintenance of various IT systems both local and remote. Provided engineering support by analyzing system and documenting findings recommending modifications for future enhancements to system. Managed IT systems infrastructure and provided support for any processes related to these systems and provided support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client problems. Provided back level support identifying problems, diagnosing (including diagnose for SIGINT application, hardware, network communication, or interface with another subsystem) and resolving each issue which include performing system performance analysis. Provided support for the dispatch system and hardware problems and remain involved in the resolution process. Provided support for escalation and communication of status to agency management and internal customers. Proactively sought ways to improve system capabilities. Prioritized work on several concurrent assignments efficiently, involving project and mission managers as necessary. Coordinated with others to meet the needs of the mission. On a regular basis, solved problems on an independent basis, demonstrating good judgment by involving developers and others as appropriate. Established procedures for maintaining user accounts, assigns file permissions and establishes password and account policies. Installed, upgraded, configured, tested, maintained and supported operating system software in a production environment. Responsible for effective provisioning, installation, configuration, operation, and maintenance of systems hardware and software and related infrastructure. Troubleshot and resolved complex system hardware, software and communications problems. Created shell programs for automation purposes. Performed configurations and adjustments to enhance database file capacity. Performed automated and manual backup and restore processes. Participated in technical research and development to enable continuing innovation within the infrastructure. Ensured that system hardware, operating systems, software systems, and related procedures adhere to organizational values. Recommended and directed software changes and updates to keep department systems up-to-date. Monitored any software changes. Provided user support and conducts user software and hardware training to formulate technology solutions and ensure the effective safeguarding and sharing of enterprise data. Evaluated requests for hardware and software. Researched and recommends solutions to technology needs, compatible with the client's technology architecture and infrastructure and resource constraints. Performed and/or oversees daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups. Provided technical guidance to less experienced systems administrators.

Confidential, McLean, VA

SENIOR SYSTEM ENGINEER

Responsibilities:

Provided direct support to the Deployment Lead to assist in the coordination of program activities to satisfy deployment efforts. Performed technical planning, system integration, verification and validation, documentation of environment, troubleshooting, and effectiveness analysis for total systems using Red Hat Linux based systems also requiring experience with Solaris and Windows utilities. Verified Cisco router and switch configuration accordingly to assure network correctness. Setup and maintained Kickstart servers to automate system loads. Maintained deployment schedules identifying risks associated with meeting delivery milestones in a fast paced, dynamic environment. Provided daily status to management and to other team members. Wrote various scripts in Shell and Perl to automate installation steps.

Confidential, Columbia, MD

SENIOR PRINCIPAL SYSTEM ENGINEER

Responsibilities:

Served as manager and team lead for operating system (Linux/Solaris 8/10, Windows/VMware) and hardware baseline effort. Led systems definition, trade-off and design activities. Led analysis of system requirements and components. Managed/led duties included coordinating assignments between team members on various tasks, assuring full documentation of environment, serving as liaison between various groups and upper management, and chairing weekly status meetings. Performed analysis of system requirements and components. Performed system audits to ensure intended system functionality, operation and performance requirements are achieved. Documentation included documenting overall process flow for building each operation system eventually integrating it into OPSware for provisioning, clarifying purpose and clearly defining goals of task, documenting process to follow for each sub-task, creating technical notes of how to build is baselined OS, writing technical specifications for each hardware platform, and producing documentation for customer review. Performed such duties as engineering Red Hat Linux (required setup of Kickstart Server) and Solaris 10 Operating systems baseline builds and evaluated new machine hardware performing benchmark tests analyzing results to determine optimal configuration settings for various machine types. Involved with developing system architecture and design for various types of hardware using Sun and HP based systems. Designed virtual environment and implemented using VMware building ESX servers and Virtual Centers to support baseline test environment while guiding team to perform various tasks within environment. In virtual environment, architect-ed and designed network communications. Performed system performance analysis to assure acceptable levels. Racked, stacked, and cabled machines per design. Setup remote console access using Cyclades, connected machines to local console using a KVM switch, connected appropriate machines to SAN switch configuring RAID5 LUNs on SAN to store multiple VM datastores allowing multiple isolated VM related tests to be performed. Involved with planning the next generation system. Involved with planning the next generation system.

Confidential, Annapolis Junction, MD

SENIOR PRINCIPAL SYSTEM ADMINISTRATOR

Responsibilities:

Performed System Administration tasks in development, test and operational systems supporting multiple projects. Provided administrative support to developers where applicable including Oracle and Weblogic application support. Performed security mitigation for machines requiring system certification. Performed Firewall Administration (G2 Sidewider) for multiple projects. Installed various UNIX COTS for all environments. Monitored physical health of hardware. Verified and located missing software for current software baseline. Documented standard operating procedures for system administrative tasks. Provided infrastructure support where needed. Gathered requirements and developed and implemented plan (including remote script writing) to automate the dumping of LDAP and Oracle databases to disk prior to routine schedule tape backups. Provided consultation for migration from UNIX Sendmail to MS Exchange. Performed daily monitoring function for project applications ensuring seamless data ingestion and acquisition, system resource availability, and normalized queue sizes. Verified and updated maintenance for project hardware and software. Integrated console server into operational environment providing remote console access. Created Perl scripts to automatically parse log file providing daily user statistics in HTML format. Provided reports to management as needed and requested. Served as primary POC for operational and developmental environment. Participated in the interview process for technical positions. Worked independently with minimal direction showing initiative where applicable.

Confidential, Lanham, MD

SENIOR PRINCIPAL SYSTEM ADMINISTRATOR

Responsibilities:

Served as a UNIX System administrator responsible for supporting various projects within the IMO’s large scale computing environment. Duties included installation and configuration of Solaris 8/10 and Linux Red Hat 8/Enterprise 4 Servers to include all aspects of system administration such as the installation of new hardware, operating system provisioning and upgrading, loading and patching application and operating system software. Provided accreditation support with respect to system testing and mitigation of test results as well as NIS, DNS and LDAP server management. Involved with developing strategic and implementation plans for information systems. performed file system maintenance, disk management using Disk Suite for disk mirror/striping and RAID 5 setup, disk capacity planning, NAS/SAN configuration, and firewall configuration using IPFilters (Sun) and IPtables (Linux). Performed system audits to ensure intended system functionality, operation, and performance requirements are achieved. Operated and maintained Jumpstart/Opsware provisioning system. Complied with DISA UNIX STIG (Security Technical Implementation Guide) and implemented SRR (Security Readiness Review) Scripts for server validation. Balanced operational, policy and information assurance requirements into effective and logical solutions. Provided tier 2 and tier 3 technical support for IMO operations. Coordinated and documented procedures for base level builds of servers and applications. Served as lead backup manager enterprise wide using Legato Networker software and Overland jukeboxes. Supported Oracle 9i, 10G, and RAC development and ongoing operations. Wrote scripts to automate monitoring and for notification purposes. Involved with planning the next generation system per requirement. Performed capacity planning for existing systems.

Confidential, Annapolis Junction, MD

SENIOR PRINCIPAL SYSTEM ADMINISTRATOR

Responsibilities:

Served as sole System Administrator responsible for supporting Sun Solaris and Red Hat Linux servers on multiple core UNIX projects. Installed and configured high-end servers, services, networks, security, and applications. Supported ATM switches and Network Appliance filers. Built, managed, and configured Sun Jumpstart server. Installed COTS and OS patch installation. Managed disk configurations using Disksuite, network backups, NIS+. Resolved system/network problem resolution, and other general support.

Confidential, Ellicott City, MD

SENIOR PRINCIPAL SYSTEM ADMINISTRATOR

Responsibilities:

Served as Primary System Administrator responsible for supporting multiple core UNIX projects at the agency. Performed installations of Solaris 8 Operating Systems using Jumpstart server for network installations. Build and configured Sun Jumpstart server for network OS installation. Performed installation of COTS and OS patches. Managed disk configurations using Disksuite, network backups, and NIS+. Performed system and network problem resolution, and other general support.

Raytheon Technical and Services Company , Landover MD (formerly Hughes Aircraft)

Confidential, Washington, DC

UNIX SYSTEM ADMINISTARTOR

Confidential, Greenbelt, MD

UNIX SYSTEM ADMINISTRATOR/MANAGER

Responsibilities:

Served as Primary System Administrator/Manager responsible for system and operation functions supporting the project’s user profile registration process. Provided system administration of Solaris 8 OS, AIX 4.2.X, Sybase ASE/Replication 12.5, NIS, DNS, Firewall (Portus) OS/Hardware upgrades, Backups (Sybase dumps/System using Legato), RAID (SUN SparcStorage Array) using Veritas Volume Manager, Remedy (used for bug tracking). Maintain Firewall rules, Web Server (Apache/Netscape Enterprise Server) and Web pages. Installed/customized project software, various COTS, Solaris 8 Jumpstart (network install) configuration, XTerm server (NCD), network and system monitors (Big Brother), Red Hat Linux 8.0. Upgraded Solaris 8 patches, Sybase ASE, Sybase Replication, and other COTS. Provide coordination/support between the remote sites. Supported User Registration via GUI and website. Verified synchronization of User Profiles between remote sites (Sybase Replication). Monitored overall operation. Participate in security audit issues resolving incidents. Implemented configuration (system/other) Change Requests. Wrote scripts (Bourne Shell/Perl) for automation of tasks.

Confidential, Landover, MD

UNIX SYSTEM ADMINISTRATOR/Engineer

Responsibilities:

Served as Primary/Secondary Point of Contact for development/test environment. Performed administration of HP-UX (v10x), Solaris(2.x,8), IRIX(6.x), and IBM(4.x). Performed architecture, requirements analysis, process execution and evaluation. Developed strategic and implementation plans for information systems. Led analysis of system requirements and components. Performed installation and upgrade of COTS, Operating Systems, Sybase ASE/Replication (12.x), Web Servers (Apache, NCSA, Netscape). Configured Sybase dumps and System Backups (Legato) create backup schedules, Network Appliance File Servers, DNS, NIS, sendmail services, Archival Management and Storage System (AMASS) hardware/software, Tivoli System Management software and project custom code. Performed network monitoring using HP Openview, Big Brother, and standard UNIX utilities. Development of Remedy Helpdesk application using MS SQL 7.0. Maintained Web Servers and pages, XTerminal (NCD) Servers, UNIX license servers (FLEXLM), user accounts, general networking, RAID (SparcStorage ARRAY/HP)/disk configuration using Veritas Volume Manager, Openview, NFS mount points. wrote procedures for COTS installations. Create scripts (Bourne/PERL) for automation of various tasks. Provided support for computer moves, remote site support, test simulations, helpdesk duties (also 24/7 support), and support for other UNIX COTS and PC related items. Performed system audits to ensure intended system functionality, operation and performance requirements are achieved. Planned for the next generation of system(s).

Confidential, Silver Spring, MD

UNIX SYSTEM ADMINISTRATOR

Responsibilities:

NOAA - National Weather Service - Served as Administrator for HP-UX (10.x) and QNX workstations. Duties included support OS and Informix relational database for forecast centers. Maintained Web server (apache), system backups and security. Configured X-Terminals.

Confidential, Greenbelt, MD

COMPUTER SCIENTIST

Responsibilities:

Served as System Administrator/Test Engineer for an operational environment which included UNIX platforms HP-UX, AIX, SUN, SGI, SCO. Performed architecture, requirements analysis, process execution and evaluation. Developed strategic and implementation plans for information systems. Led systems definition, trade-off and design activities. Led analysis of system requirements and components. Performed system performance analysis. Performed development of system architecture and design including: software, hardware, and interface requirements. Performed installation and configuration of OSes, Internet gateway system (Eagle/Raptor), DNS, NIS, Media exchange system, Web servers, print servers, Network Backup (IBM ADSM), and other software. Provided Documentation and Training for operational related installs. Procured software, hardware, and maintenance. Researched and evaluated several software packages including UNIX Job Schedulers, mail systems, helpdesk, Distributed Computing Software (NFS,AFS,DCE), network management software (HP Openview) and other. Wrote scripts in Bourne Shell and Perl for automation of admin tasks. Mentored new employee. Provided basic support in MVS/VMS environment while transitioning to Distributed UNIX Systems. Involved with security TIGER team efforts. Performed system audits to ensure intended system functionality, operation and performance requirements are achieved. Planned for the next generation of system(s).