SUMMARY:

• Eighteen years diverse experience in computing infrastructures and the organizations which use them.
• Large infrastructure security architecture, rapid mission−critical deployments, disaster recovery, high−availability and cluster computing, data center build out and relocation, software development, client−facing project management, mentoring and development of IT.
• Responsible for managing 400+ Linux/Unix Servers as well as scaling web architectures using technologies such as Load Balancing, Replication and clustering.
• Performed software installation, upgrades/patches, troubleshooting, and maintenance on UNIX/Linux servers.
• Automation of recurring tasks was implemented using scripting languages such as PHP, Perl, and Python.
• Maintained existing programs/scripts and extended Linux system functionality as needed.
• Maintained necessary back - up of the important files and documented Linux scripts for future references.
• Kickstart and PXE server experience.
• Managed team of up to thirty resources including contractors, vendors and client employees. In charge of highly-visible large-scale projects, escalation & exception issues, risk & impact of deliverables, executed projects with control and predictability allace
• Confidential is an experienced Unix/Linux administrator that has been well versed in the building and design networks information technology arena.
• His experience includes installation, configuration and maintenance, and troubleshooting.
• These duties include experience in multiplatform Unix and Linux environments, with hands-on expertise in networking, scripting, and systems integration.
• He has a vast amount of experience in installation, configuration and maintenance, and troubleshooting networks and hardware from a variety of different vendors.
• As a UNIX administrator, Confidential obtained excellent problem solving skills while troubleshooting various technical issues.
• Troubleshooting techniques required innovative, collaborative analysis and inductive reasoning.
• Works well independently.
• Often assigned engineering project to work independently.

TECHNICAL SKILLS:

Operating System: Sun Administration, NT Administration, HP-UX Administration, Linux RHEL 6.2, Windows 2000, WinXP, Bourne Shell Scripting, Solaris,9 & 10

APPLICATIONS: Netcool, Oracle Administration, Weblogic, Visio, VMware, Joint Computer Aided Acquisitions and Logistics Support (JCALS),Nagios, SVN, Package and configuration management using rpm, yum, File Sharing on Linux/Windows hosts with SMB via Linux/Windows servers, Version control with Subversion FTP, SSH and SCP

LANGUAGES: C, C++, Perl, Python, PHP Ability to write basic shell scripts and create cron and jobs and Solaris 10 / Linux

Experience with complex IP networks: Earned a Network Engineering Certificate from a local community college. Provided strategic planning, complex IP network implementation, and systems support for new COVCOM system. COVCOM is a complex IP network. Network Technologies CDP, Frame-relay, PPP, Access Control List (ACL), Network Address Translation (NAT), Port Address Translation (PAT), OSPF Virtual links, RIPng, RIP, RIPv2, OSPF, EIGRP, BGP, MPLS, VTP, SNMP, SNMPv3, SMTP, ARP, TCP, UDP, Static Routing, Stub Routing, VLAN Trunking, Multi-Area OSPF, NBMA, Sonet, VLAN, VTP, HSRP, STP, SVI, CEF, Etherchannel, BPDU, Portfast, GLBP, VRRP.

Familiarity with Server Load Balancing (SLB) concepts: Familiar with implementing SLB to maximize the use of servers. Configured load balancing on servers so the system would remain Highly Availability. Responsible for managing 90+ Linux/Unix Servers as well as scaling web architectures using technologies such as Load BalancingReplication and clustering. Apache Web-Server Architectures.

Familiarity with Storage Area Networks, iSCSI protocol and multipath in Linux: Familiar with iSCSI protocol to transfer data over a network to store information in a central Storage Area Network. Familiar with configuring servers to transfer data via multi path to a iSCSI SAN. Experience of creating standard and Virtual I/O client LPAR using HMC. Supported huge partitioning environment with 45+ Confidential p5-570 managed machine HMC.SAN Storage, Disk Management (LVM).Coordinated precise scheduling for all migration events including all equipment and resources for the data center migration on an extremely

PROFESSIONAL EXPERIENCE:

Confidential

Responsibilities:

• Maintain system by researching and installing patches, monitor systems and components to detect and prevent problems.
• Research and recommend maintenance, repair, replacement and upgrades of hardware and operating systems components.
• Ensure the security of all systems by monitoring logs and intrusion detection systems, installing security patches and staying abreast of the latest threats and preventive measures
• Strong communication abilities, with history of providing support to wide range of clients.
• Experience working in fast-paced, deadline-oriented environments.
• Solid background in technical support and security and undergoing RHCSA training.
• Functioned as Linux administrator and systems engineer to maintain system services and performance.
• Responsible for managing 400+ Linux/Unix Servers as well as scaling web architectures using technologies such as Load Balancing, Replication and clustering. Performed software installation, upgrades/patches, troubleshooting, and maintenance on UNIX/Linux servers.
• Automation of recurring tasks was implemented using scripting languages such as PHP, Perl, and Python and c++.
• Maintained existing programs/scripts and extended Linux system functionality as needed.
• Planned and executed Linux system changes and upgrades. Installed and configured all the Linux servers in the network on the demand of the client Monitored the servers and Linux scripts regularly and performed troubleshooting steps. Performed routine checks on the Linux servers of the firm.
• Maintained necessary back-up of the important files and documented Linux scripts for future references.
• Kickstart server experience. Maintained relationships with key customers.
• Maintain system by researching and installing patches, monitor systems and components to detect and prevent problems
• Successful data center migrations for Confidential ’s Hardware, both production and disaster recovery, Federal government client and Verizon business.
• Both moves required infrastructure and network builds, assessment, procurement, planning and execution.
• Responsible for multiple teams including infrastructure, network, Intel, Unix, mainframe and storage. (MS/SQL)

Confidential

Sr. Unix System Administrator

Responsibilities:

• Responsible for the planning and development of a robust, scalable Trusted Solaris infrastructure for all UNIX computing resources on Mission Operation.
• Daily tasks include support all Mission operational maintenance and upgrades for all UNIX operating systems, workstations and servers.
• In addition, provide support to the windows team with all active directory issues.
• Installation of new customer software releases, system upgrades, evaluation and installation of patches and resolution of software related problems associated with COTS/GOTS products on Sun UNIX, SGI IRIX and Windows 2000 / XP platforms. usingSQLand scripting added .
• Provides general trouble-shooting on customer workstations, creates user accounts, maintains data files, and monitors system .
• Used C++ andPerlScript toconfiguration to ensure data integrity.
• Duties also include performing hardware maintenance and repairs with vendors.
• Performs system backups and recovery, provides general trouble-shooting on the customer system, maintains data files and monitors system configuration to ensure data integrity.
• Participate in analyzing new hardware/software needs and participates in customer Confidential ’s, reviews and meetings pertaining to customer issues.
• Keeping NIS+, NFS up to date for users daily uses, Windows Active Directory as well as monitoring all system processes.
• Script in Unix/Windows and modify scripts as necessary for automation and configuration management.
• Responsible for installing, configuring and maintaining Unix/Windows workstations and servers, including Web servers, in support of business processing requirements.
• Performs software installations and upgrades to Unix/Windows operating systems and layered software packages and maintains them in accordance with established policies, procedures and service level agreements.
• Responsible for maintaining Microsoft server technologies (Windows, Exchange, MS/SQL).

Confidential

Sr. Unix System Administrator

Responsibilities:

• Responsibility is to ensuremaximum system availability to all users.
• Monitor local system operations;prepare and provide system and maintenance reports; perform system startup/shutdown; support configuration management; perform operating system andnetwork tuning; perform system upgrades, and perform backups.
• Oracle installation and database repair,Sun E10k/15K Hardware/Software installation and upgrades, CIRAS Problems tracking, management and resolution, analyzes, logs, tracks and resolves CIRAS software/hardware matters of significance pertaining to networking connectivity issues, printer, servers, and applications to meet Agency needs.
• Performs troubleshooting to isolate and diagnose common system problems; documents system events to ensure continuous functioning.
• Recommends course of action and implements as approved.
• Install, test, upgrade and configures system files and services to enhance CIRAS performance. usingSQLand scripting added

Confidential

Senior UNIX System Administrator

Responsibilities:

• Administer SCO and Sun Solaris.
• Writing device driver to support SCO Operating System.
• Setup custom configuration servers to support Confidential customer needs. Resolved Customer Autosys and Serial Port flow control problem.
• Writing shell script to support and install new codes to support client application.
• Debug hardware failures that were written in Assembly Language.
• Writing several codes in C++ and C and Assembly to support Hardware Architecture failure.
• Using Breakout boxes and firebird to count number of bytes flowing from the serial line to the main server.
• Debugging Kernel configuration problem to support customer custom base application.
• Deliver several Device Drivers to support customer mission.
• Identified and corrected problems in mission critical NFS server that were causingsignificant errors in scientific compute processes. usingSQLand scripting added
• Designed test data, populated scenario dummy data of DB tables and views via SQL for Nominal, Regression and Stress Tests; fault resolution between developers, analysts and release managers
• Design and implement 160 nodes Linux Cluster and supported Qualstar 4480 Tape Library and Veritas NetBackup.
• Implemented enterprise SYSLOG server. Designed and architected Solaris and NT hardware systems.Secured all systems.
• Implemented SSL, SSH, Proactive security scans and content filtering.
• Implementation and administration of VMware GSX server for the Confidential .
• Setting up Linux system as router for wireless ISPs using 802.11(b) networking for new COVCOM system.
• Deployed VMware on customer COVCOM Linux systems to run Windows 98 within on a single system.
• Loaded VMware on several LAB Linux systems.

Confidential

Unix System Administrator

Responsibilities:

• Administer HPUX N and D class servers, Sun E3500, True 64 and SCO.
• Responsible for all Unix workstations problem.
• Daily Legato backup and setting up DMZ architecture.
• Setting up DMS mail, testing and implement SMS 2.0.
• Work with Infrastructure team on daily basis on setting up Cabletron switches.
• Resolving Daily JCALS problem for several military installations.
• Setting up WIN NT PDC and BDC controller.
• Administer JCALS Web Servers and setup VPN traffic for several military installations.
• Administer Cisco PIX and Microsoft base Raptor firewall.
• Task Lead on Win 2000 Roll out. Setting up ISDN connection and wireless connection to support troop movement.
• Work on VLAN project. Packet sniffing, intrusion audits, traffic analysis, security policy development/deployment.
• Design and Implementation of Network Management/Monitoring Architectures based on HP OpenView, CISCO Works, BigBrother, mrtg/rrd, netsaint, ntop, npulse.
• Design and management of large routed/switched LAN/WAN networks. Remote Management/Remote Monitoring Architectures (SNMP, VNC, ssh, CISCO/Livingstone terminal server). Coordination with TELCOs, Carriers, RIPE, ISPs and Strategic Partners.
• Complex Revision Control Architectures for Configuration & Document Management (CVS). Worked with Apache Web-Server Architectures.
• Created perlscript based data migration tools for moving Oracle-resident application configuration data from existing systems to replacement databases (Perl ODBC &SQL), while maintaining referential integrity of the data (stored in of the data across development, test, and production platforms, to support a major upgrade of the composition system.
• Security Architecture for ISP Managed Firewall Services based on NOKIA Appliances/CISCO/Checkpoint Provider-1/BSD UNIX.
• BSD/CISCO/Linux/Solaris interoperability prototyping (802.1Q, VRRP, IPSec, etc.).
• ADSL broadband access ISP introduction, unbundling architectures. MPLS design/prototyping/rollout of a large ISP backbone architecture.
• Design of Looking Glasses & Route Servers for Technical Project Management.
• Mixed UNIX and CISCO multicast testbeds (MBGP, PIM, DVMRP, IGRP). PKI-Certificate Servers based on Microsoft CA and OpenCA, PGP Key Server.

Confidential

Sr. Unix System Administrator

Responsibilities:

• Unix/NT System Administration,Supporting 40 HP-UX 9000 K380, K540Severs, 10 SUN E3500, 30 SUN 420R, 10 HPUX 9000 D class Severs, 2 HPUX N class servers, 75 HPUX & SUNworkstations. Maintain connectivity with Lucent 5ESS switches using NetExpert software.
• Monitor data traffics sent by 5ESS switches through TDCE.
• Maintain several Dynastar boxes.
• Troubleshoot and support network connectivity, hardware, and software.
• Kernel configuration on both Solaris and HPUX.
• Install latest Patches on all servers and configure Cisco 7200 router. usingSQLand scripting added
• Setup DNS, NIS on both Solaris and HPUX.
• Setup SSH ON several of our Web server boxes.
• Maintain and troubleshoot daily several well-known Internet sites.
• Monthly and weekly maintenance on all servers.
• Assist and support several Network projects.
• Support various other OS and Application such as: Linux, Bios, NT, Oracle, HP OpeView, Stratus, 5ESS, NMA, Net Expert, Ignite, NetCool and Connect-Vue.
• Installation of computers and software on a LAN/WAN. Installation of data communication and wire trouble shooting of user problems.
• Installation of hardware for individuals.
• Technical support via telephone and email to users.
• Design and implementation of LAN's