PROFESSIONAL OBJECTIVE

To obtain a position in the computer science field specializing in UNIX systems engineering

QUALIFICATIONS

· UNIX internals, System architecture, capacity planning, and performance tuning/analysis

· Solaris 2.6-10, ;OpenSolaris, FreeBSD 2.x-7.x, Linux, and HP-UX 9.x-11.x

· C UNIX systems programming, Python, Dtrace, Perl, UNIX Shell scripting, Java

· Driver development with FreeBSD 4.x and 5.x

· Design of SAN and NAS architectures with Hitachi, EMC, McData, and Sun

· Knowledge of EMC ECC, Timefinder, Volume Logix, and ESN Manager

· Design high availability clustered systems using Weblogic, Jboss, Apache, VCS

· Sendmail, Postfix, DNS, DDNS, NFS, DHCP, LDAP, and Samba configuration

· Design enterprise N tiered architectures

· Implemented SVN and CVS for Software Configuration Management

· Configuration of Solaris DiskSuite, Veritas Cluster Server, and Volume Manager

· Installation and configuration of Apache, Tomcat, Weblogic 6.1-9.1, and Jboss 3.x-4.x

· Multithreaded application design

PROFESSIONAL EXPERIENCE

2006- Tridenta Solutions Plano, TX

Present

Instructor for Network Administration for the Solaris 10 Operating System. Responsibilities included teaching the TCP/IP stack, IPMP, configuring routers, firewalls, Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP) and IP version 6 (Ipv6).

2001- TRANSPLACE, LLC Plano, TX

Present

Director of Systems and Database Engineering

Including Datacenter Manager and Senior Engineer functions below. Wrote a capacity planning and performance analysis application in Python for Weblogic. Wrote network program in C to monitor web sites. Use Dtrace on Solaris 10 to diagnose software and performance issues. Designed clustered systems for 99.999% uptime using Resonate, Jboss, and Cluster Server. Implemented FreeBSD and Spamassassin for email filtering. Configured and implemented SVN and CVS for software configuration management. Led major consolidation project of systems and licensing saving over $1.5 million. The project included capacity planning, performance analysis, and system availability of over 200 systems. Led performance tuning team. The team was responsible for all aspects of degradation including network, application, database, and SAN improvements. Overall, the team improved response time by 40%. Upgraded SAN from McData ED3032 director to ED6064. Implemented Shadow Copy for Q/A databases. Implemented Solaris 10 containers and FreeBSD jails to maximize server utilization. Created enterprise standards for high availability, architecture, middleware systems, and system security.

Datacenter Manager

Including Senior and UNIX Systems Administration functions below. Managed on-site and remote data centers with a staff of 14. Researched, designed, and implemented all hardware and software requirements. Led several cross-departmental team projects, and served on architecture board. Recommended and migrated EMC Symmetrix storage array to Hitachi 9980V. Analyzed and resolved a Solaris performance issue improving customer response time from 6 hours to 7 seconds. Identified and recommended a Business Continuity (BC) plan for the enterprise including servers and applications. Created build scripts for apache, tomcat, PHP, and Postgres. Designed LDAP with replication for authentication with Solaris. Created architectural diagrams of systems dependencies and processes. Analyzed and revised support contract for improved efficiency and cost savings of $500,000.

Senior UNIX Systems Engineer

Including UNIX System Administration functions below. Recommended and implemented all enterprise High Availability solutions. Managed EMC Connetrix SAN with a Symmetrix storage array. Implemented BCVs for backup and recovery, and reporting and Q/A databases. Implemented data center disaster recovery plan. Documented all technical procedures. Benchmarked systems for ideal performance of kernel variables and RAID types. Configured Enterprise class systems for Dynamic Reconfiguration. Developed enterprise wide security policies. Designed and implemented monthly security audits for UNIX servers. Monitored, tuned and troubleshot over 250 nationwide systems. Upgraded Veritas Volume Manager from 3.1/3.2 to 3.5. Led a cross-functional team on performance tuning for a business critical application. Interviewed junior, mid-level, and senior level UNIX administrators. Interfaced with developers and DBAs to resolve development and production issues. Instructed clients and junior/mid-level administrators on UNIX concepts and commands. Installed, configured, and troubleshot BEA Weblogic Server 6.1-8.1, Tomcat, and Jboss 2.3. Provided 24X7 technical consultation.

UNIX Systems Administrator

Installed, upgraded, and configured DNS, DDNS, and DHCP for the enterprise with over 75 domains. Installed and administered Iplanet web, directory server, and Netegrity Siteminder. Responsible for web transaction security using Siteminder and SSL. Report attempts of security break-ins to upper management. Implemented Resonate to load balance and monitor webservers. Wrote scheduling and fail-over rules using Resonate. Customized jumpstart installations for all Solaris systems from Ultra-5 to E6500. Installed, configured, and upgraded Solaris DiskSuite, Veritas Volume Manager, FileSystem, and Cluster Server. Created multiple RAID levels using Volume Manager for Sun D1000s. Wrote programs using Perl and C programming language. Created Bourne shell scripts for job automation and security audits. Monitored system resources using vmstat, iostat, sar, SEToolkit, and vxstat. Utilized system-monitoring tools to trend system performance, and make recommendations for software/hardware upgrades. Used ssh and scp for encrypted communication as a replacement for telnet and ftp. Configured syslog on all servers to use a centralized log server. Veritas Netbackup for backup and recovery. Evaluated and made software recommendations. Troubleshot DNS, DHCP, LDAP, siteminder, apache/iplanet webservers, Netbackup, Volume Manager, and system issues. Created on-call schedule. Configured Tivoli to monitor all UNIX servers and databases.

2000- NORTEL NETWORKS Richardson, TX

2001

ASP Solutions Specialist Critical Response Team (CRT)

Provided third tier worldwide support for Solaris 7/8, HP-UX 11.0, EMC, and Oracle. International travel for ASP implementation and training. Installed and maintained Solaris, Veritas Volume Manager, and HP-UX servers within lab environment. Performed analysis and tuning for UNIX systems and Oracle. 24-hour critical on-call support. Designed applications for first tier support utilizing Perl, shell, and C programming language. Troubleshot sendmail, routing, firewall, LDAP, DNS, NFS, NIS and network hardware problems.

1999- SBC SERVICES Dallas, TX

2000

Team Lead - Infrastructure Management

Included all Security Administrator and System Analyst functions. Responsible for user and system support on UNIX boxes. Processed and handled escalations for support cases from the client group. Aggressively monitored systems for possible bottlenecks and resolved problems through application, database, and OS redesign. Provided leadership to support staff within Business Systems group. Interviewed UNIX administrator candidates, and provided necessary training. Responsibilities to group included coordinating projects, 24-hour on-call support, vacation, and training schedules. Active Security Administrator for thirty-five systems. Responsibilities included daily security checks and semi-annual security audits. Daily checks included running crack, cops, and tripwire. Maintained hardware and software requirements for client system growth. Ensured logins were disabled after ninety days of inactivity. Monitored and tracked unknown system login attempts.

Systems Analyst

Advised Test and Production departments on optimizing network and system performance through the implementation of kernel, network and system changes. Troubleshot network, system, application, and Oracle related problems and executed technical alternatives incorporating NFS, sendmail, routing, network switches, and revised LAN configurations. Oversaw and supported projects from testing through production. Provided support to wireless billing utilizing HP-UX 11.0 and 10.2. Installed, configured, and upgraded HP systems. Wrote Shell, Perl, and C programs for job automation and security audits. Provided prompt 24X7 technical consultation and on-call rotation. Monitored and troubleshot client server applications. Reported project status to management. Attended meetings in regards to file system management, server consolidation, and production readiness. Installed and configured Apache web server. Projects included planning and implementation of file system design for twenty-five servers, creation of a security program in the C language to log access to all systems, planning and executing the upgrade of sixteen servers, and updating technical documentation.

1998- THE CPS GROUP Irving, TX

1999

IT Administrator

Accountable for backups and restores using Legato, BRU, and tar. Configured and tuned kernel. Monitored system activity, disk, and memory usage. Ran security audits. Wrote scripts using Perl, Bourne, korn, bash, C shell, sed, and awk. Planned and implemented disaster recovery. Configured print servers. Employed fsck to check and fix file system errors. Installed and configured Samba file server for NT workstations. Administered DNS 4.x, 8.x and DHCP on UNIX and Windows NT 4.0. Evaluated and recommended purchases of software and hardware. Installed, configured, and administered Sendmail V8. Troubleshot network problems, including routing, firewall configurations, and DNS. Installed and configured NFS and FTP servers. Tested software and hardware for Year 2000 compliance. Utilized Cisco IOS commands for setup of Cisco hardware, including Cisco routers, PIX firewalls, and switches. Installed Apache web server and Postgres Relational Database System.

1996- PAYMENTECH, INC. Dallas, TX

1998

Cadre Analyst/Junior Oracle DBA

Created UNIX scripts and PL/SQL stored procedures. Managed disk space, monitored system resources, and administrated security for Oracle and UNIX. Installed and upgraded vendor software on client workstations. Wrote SQL scripts, loaded data from a mainframe into Oracle tables via SQL*LOADER, and trained/advised users on UNIX. Utilized UNIX HP-UX versions 9.x, 10.x, and Oracle 7.x. Provided troubleshooting support for approximately 30 users. Projects included data migration from VAX/VMS to HP-UX and Year 2000 compliance for Oracle database.

Publications

· Sysadmin Magazine ZFS Administration January 2007

Training

· McKusick- UNIX Kernel Internals: Data Structures, Algorithms, and Performance Tuning

· Oracle - 9.2 Features

· Sun - Systems Fault Analysis Workshop, Enterprise 10000 Administration

· Sun - Volume Manager, Sun Cluster Administration, Solaris 2.6 Systems Administration I

· Iplanet - Directory Server and Webserver

· Resonate - Administration of Resonate

· Global Knowledge - Oracle Database Administration Bootcamp

· NetG - Perl Data and Communications, C Programming Introduction 1, 2 and Advanced 1, 2

· HP - HP-UX for Experienced Administrators, Inside HP-UX, UNIX and Network Security

· University of Texas at Arlington - UNIX, Oracle/SQL, Systems Programming

· Collin County Community College - C programming language