SUMMARY:

• Sr. Application Developer/ Web Application Developer / Sr. System Administrator /18 Years experience with Confidential ( Linux, Apache, MySQL, Perl ) e.g.
• Project Design / Code Optimization / Database Optimization / Performance Tuning
• Excellent communication skills.

SKILLS:

OPERATING SYSTEMS: LINUX

RedHat: 6.1 Cartman, 6.2 Zoot, 7.0 Guinness, 7.1 Seawolf, 7.2 Enigma, 7.3 Valhalla, 8.0 Psyche, 9.0 Shrike

RedHat Enterprise: RHEL 3.x, 4.x, 5.x, 6.x

CentOS: 5.x, 6.x

Fedora: Fedora Linux 7 - 21

Other Linuxes: Debian, Ubuntu, Scientific Linux, SLES, openSUSE (9, 10, 11, 12 ); Mandrake, Gentoo

UNIX: Solaris ( 2.4, 2.6, 7, 8, 9, 10 ), FreeBSD ( 4.x, 5.x, 6.x ), HP-UX (11.x)

MICROSOFT: Server Windows NT (3.51, 4.00, 5.0, 5.2, 6.0), 2000, 2003, 2008

Desktop: 3.1.1, Win95, Win98, 2000/ME, WinXP, Vista, 7, 8

APPLE: OSX ( 10.4, 10.5, 10.6. 10.7, 10.8 ), iOS ( 4, 5, 6 )

CISCO: IOS ( 11.x, 12.x ), PIX 5.x 1600, 1700, 2620 Routers

DATABASES: MySQL ( 3.2x, 4.0, 4.1, 5.0, 5.1, 5.5 ), Networking, schema design, performance tuning, configuration variables, backups & imports, complex queries, and query optimization. MyISAM & INNODB, permissions, data security, Perl DBDmysqladmin, mysqldump, mysqlshow, myisamchk, mysql monitor, etc...

Oracle ( 8i, 9i, 10g, 11g ): Networking, client libraries, stored procedures, PL/SQL, tnsnames tblspaces, execution plans, transactions and rollbacks, permissions data security, imports and exports.

Other Databases: PostgreSQL (7.x, 8.0), Sybase ASE ( 12.5 15 ), MSSQL Server ( 6.5, 7, 8, 9, 10 ), Informix, Mircosoft Access

PROGRAMMING LANGUAGES: Shell Script Bash, ksh, Perl, C, C++, Python, PHP, Ruby, Java, Javascript, R

Markup/Web: HTML, DHTML, XML ( XPointer, XPath, XQuery, XMLSchema, WSDL, XSLT ) CSS2/3 SQL-92, PL/SQL, TSQL, ESQL Mail Servers Sendmail, Postfix, Qmail, Strongmail, Exchange

Web Servers and Application Servers: Apache, lighthttpd, Squid, Tomcat, JBoss, AMX, Tux, IIS, IPlanet

Hostname Servers: named, dhcpd, Infoblox

Microsoft DNS/DHCP servers: Wikis and Blog Engines, MediaWiki, Twiki, Joomla, Jira, MojoMojo, Confluence, Movable Type, Drupal, Wordpress, Dekki Wiki, Redmine

Frameworks: Catalyst, Reaction, Django, Cake, Ruby on Rails

Content Management: Vignette, Alfresco, Drupal

Code Revision / Bugtracking Systems: CVS, SVN, Git, Mercurial, Bugzilla, Trac, PVCS, IBM Rational ClearCase, BMC Remedy, DARCS, StarTeam, SourceSafe, RT, Redmine, HP Quality Center

IDE's: Eclipse, Komodo

Configuration Management: CFEngine 3

Server Clustering Technologies: Sun Grid Engine

SAN/NAS: Coraid, EMC, Netapp

Cryptographic Ciphers & Binary Checksumming: RSA, DSA, DES, 3DES, AES (Rijndael), Blowfish, Twofish, IDEA, CAST5, MD5, SHA-1, SHA-256, Tripwire, PGP, GPG, Kerberos, OpenSSH, OpenSSL, SCP, SFTP, RSYNC, DNSSEC, IPSEC

Applications: MSOffice, OpenOffice, LibraOffice, GIMP, FrameMaker, PageMaker, Acrobat, Illustrator, Photoshop, PowerPoint, Visio, others

EMPLOYMENT HISTORY:

Sr. System Administrator

Confidential

Responsibilities:

• Create Static Embedded Linux Environment and toolchain, using static glibc, elfutils, binutils, coreutils, find, sed, awk, grep, libcrypt, zlib etc.
• Create Static Perl binary and CPAN Environment for running various BioPerl applications
• Binary Compilation and linking: gcc, libtool /lib64/ld - linux.so.2, ld, strip, objdump, readelf, etc..
• CPAN Compilation and linking
• Create and Maintain subversion repository for project
• Regular Deployments of code to production
• Creation of Confidential files and RPM building and deployment
• Maintain software under “environment modules” system ( module command, TCL stub creation )
• Buildout of servers and Storage Arrays
• Keep 3,000 TB of spinning storage available
• Hooking Illumina sequencers to Linux storage arrays via SMB
• CFEngine Configuration deployments
• MediaWiki Upgrades and maintainance, edit and maintain custom PHP plugins
• Configure and deploy various ruby gems for redmine and mod passenger
• Apache Vhost, redirection, Memory Management, and security issues.
• Kerberos authentication testing
• Disaster Recovery
• Various LDAP and MSAD integration
• Postfix and Senmail configuration tweaks
• Sun Grid Engine Maintainance
• Account Management on Servers
• Create basic Scripts to monitor specialize circumstances in clusters beyond existing Nagios, Ganglia, and Xymon implementations
• Coraid Management
• NFS Troubleshooting and maintainance ( fstab, autofs, nfsd, /proc/mounts etc.. )
• Scripts ( Bash/Perl ) helping with NetApp Maintainance
• Local Testing of code deployments on Parallels running CentOS 5.10, 6.5 and Fedora 20

Environment: Centos 5.10,6.5, SciLi, Sun Grid Engine, Son of Sun Grid Engine, CFEngine 3 cofiguration management, Subversion management ( svn ), apache 2.0, 2.2, 2.4, MySQL 5.0, 5.5, MediaWiki 1.19, Redmine, Samtools, BioPerl, Bedtools, Tabix, Novalign, Illumina, NetApp, OnTap, EMC Isilon, Nagios, Splunk, Ganglia, Xymon, Kerberos, user accounts, Logical Volume Manager ( LVM ), MSAD, LDAP, MDADM ( Local Raid Configuration), Hardware RAID configuration ( 6, 10 ), DNS Management, Bridge and Bond Interfaces, LKM ( Loadable Kernel Modules ), igxbe 10gib Kernel Drivers, Kernel configuration, ( linux-vdso.so ), glibc ( libm, libc, libcrypt, etc.. ), software packaging and deployment via RPM, Service Now ticketing system, OSX 10.8 laptop, local VM test environments ( Parallels, VirtualBox )

Infrastructure Operations Engineer

Confidential, Reston, VA

Responsibilities:

• Migrate existing Java and Perl applications from SLES and Solaris to RHEL
• Update DBI and JDBC libraries for Sybase and MSSQL server
• Troubleshoot Tomcat and Apache issues ( warfile deployment, vhost configuration etc. )
• Update SSL certificates, troubleshoot network and DNS issues.
• Test and certify existing java classes and Perl libraries for RHEL compliance
• Bash, ksh, and Perl scripting and Autosys scheduler jobs.

Environment: SLES 10.x, RHEL 6.4, Sybase ASE 15, Solaris 10/SunOS 5.10 on Sparc, MSSQL server, Perl 5.12.x, 5.8.x, Java 1.6.x, OpenJDK, Tomcat 6.0, Apache 2.2, BMC Remedy Action Request System 7.5, BMC Remedy Knowledge Management, IBM Rational ClearCase, RSA SecurID, Cisco VPN Client, Rapid SQL

Security Engineering Developer

Confidential, Dulles, VA

Responsibilities:

• Maintain Perl 5.8.8 mod perl 2.x Application on RHEL 5.8 which Scans various Confidential data sources for information when responding to legal compulsion from various agencies.
• Manage MySQL 5.0 databases which support application
• Web service ( REST / HTTPS ) calls to remote data sources
• Maintain Javascript, JQuery, Ajax and DHTML in the application
• Code maintained in CVS, with an RPM deployment system; responsible for RPM builds and production pushes
• Maintain optical media burning application and cryptography related to sensitive information
• SSL certs. All transfers over https
• Port existing mod perl 1.99/2.04 application which handles authentication and authorization to various internal sensitive websites from LDAP/LDAPS to Confidential ELS ( Enterprise Login ) SSO engine based on MS Active Directory .
• SSL connections and certificates
• Maintain additional home brewed security and cryptographic functions
• CVS SCM and RPM deployment system
• Responsible for RPM builds and production deployment
• Maintain various applications which handle employee rights and privileges mod perl, mod cgi, javascript, Ajax, and DHTML
• Web service ( REST/HTTPS ) to remote data sources
• Sybase 12.5 ASE production and QA environments
• Production Builds and Releases
• RT request tracking system
• Load data from various sources ( PeopleSoft, Hyperion, MSAD, Oracle Data Warehouse etc.. ) into Asgard approx. 150 ETL temporally sensitive Perl scripts
• Maintain Confidential CA/RA ( request Authority ) which grants user certs for all user machines to Authenticate to various sources including the VPN ( SERA ( homegrown) /Juniper based system )
• Create Certificates for Confidential Webservers
• Support the OCSP SSL Responder Protocol and create certificates for OCSP Servers

Environment: RHEL ( Redhat Enterprise Linux ) 3,4,5, Apache 2.0, 2.2 webservers, CVS ( Concurrent Version System ) 1.12, RPM ( RedHat Package Manager ), Stunnel, MySQL 5.0, Sybase 12.5, Aqua Data Studio, Perl 5.8.x, mod perl 1.99, 2.x, Net::LDAP, MSAD, Oracle 11g, DBD::Oracle, DBD::Sybase, RT ( Perl Ticket System ), Mac Lion Local Test Environment, Bash, Ksh, OpenCA, OpenSSL, Kerberos Unix accounts, RSA Secure ID, Confidential SNS ( screen name service ), OMAG ( open mail gateway web service API ), NFS mounts.

Application Developer/Production Support

Confidential, Columbia, MD

Responsibilities:

• Maintain Perl 5.12 CGI Application running against Oracle on SLES 11 Linux which allows TDA associate to open customer accounts
• Interface with a variety of Java Web services and Middleware layers ( tuxedo, Jboss, Tibco AMX ) via Soap::Lite interface.
• Maintain JavaScript, HTML in application
• Production support of applications
• Linux administration of Virtual Machine Test Environments ( VMLogic Blade Manager, IBM Z10 )
• Cron jobs and Data Manipulation Bash, Ksh, Perl Scripts for Oracle 10g database
• IBM Rational ClearCase SCM/ Code Revision System, Remote VOBS, MVFS

Environment: SLES ( SuSE Enterprise Linux ) 9,10,11, RHEL ( RedHat Enterprise Linux ) 4,5, Fedora and OpenSuse Test Images in Oracle Virtual Box, BMC Remedy 7.5, HP Quality Center 10 Bug Tracking, Atlassian Jira Workflow Management, Deki Wiki, SharePoint, Test Director Regression Testing, Jakarta, Jboss, Oracle 10g, SQL*Developer, PL/SQL Developer, SQL*Plus, Tuxedo Middleware Layer, ChangePoint, AlarmPoint on Call notification System, Perl 5.12, People Soft, Cisco & Citrix VPN technologies, RSA Secure ID, IBM Rational ClearCase Dynamic and Snapshot views, MVFS Mounts, NFS Mounts, Centrify Account Mgmt., Hummingbird Exceed X server for Windows, Captaris RightFax Enterprise Fax server

Senior Perl Developer/Systems Administrator

Confidential

Responsibilities:

• DNS Configuration: subdomains, routing, etc.
• Apache Configuration: Virtual Hosts, Apache Performance Tuning ( mod mpm settings, mod fastcgi, mod perl, ab ), Redirects, SSL Certificates and Domains.
• Build and Manage Bugzilla Tracking system, Running MySQL 5.0
• PostgreSQL Management, Database Backups, Building, Performance Tuning
• Catalyst Application Development, MVC OO Perl Modules, DBIx::Class Model Code, Template Toolkit View Module,
• PostgreSQL development functions, triggers, etc..
• Report Generation: on-the-fly PDF and CSV formats, Wkhtmltopdf, pdftk
• Perl Scripting: Data Manipulation, Cron jobs etc.
• General Systems Administration: user maintenance, firewall configuration
• Subversion Repository Management, DAV SVN over https, backups and merging.

Environment: Catalyst OO MVC Framework, Template Tool Kit, PostgreSQL Database, Debian, Apache 2.2.4 Web servers, mod fastcgi, RHEL 5, Bugzilla, SVN, MojoMojo Wiki

Perl Applications Developer

Confidential, Bethesda, MD

Responsibilities:

• Extract vendor source data from a variety of formats ( XML, MARC, SGML, Binary Formats
• Maintain and Upgrade existing application/code in Perl/C/XSLT
• Write New Object Oriented Modules for New Perl Application
• Extensive use of standard CPAN modules, such as XML::LibXML.

Environment: Perl 5.6.1 - 5.10, RHEL 3,4,5, Solaris 9, XPath, XPointer, XML Schemas and Validation, XSLT, C, Java

Senior Software Developer

Confidential, Rockville, MD

Responsibilities:

• Perl Data Manipulation for Stock Broker Testing/Certification Application
• Solaris 10, Oracle 9i, Perl 5.8.5, Borland StarTeam, Aqua Data Studio
• Extensive use of DBI, Test:: modules, and other PERL code analysis tools
• Identify Errors in Code Via Perl Test Harness comparing Oracle/Informix State against XML historical baseline files.
• Automated Test Code performing 2,500 tests per second.

Senior Applications Developer / Infrastructure Architect

Confidential, Washington, DC

Responsibilities:

• Responsible for operation of most of National Geographic's Web Properties.
• Write Applications to support the infrastructure as well build on website capabilities.
• Chief administrator for Bugzilla, Subversion, and internal Wiki ( Mediawiki )
• Design AP news feed system ( code architecture, implementation, QA)
• Design Cache Clearing Management Applications which handles hardware HTTP caching appliance Bluecoat and external CDN.( Bluecoat, Squid, Panther, Akamai, Limelight )
• Interface with Vignette CMS ( Content Management System )
• Sharepoint Trouble Ticket Response Team Member. Troubleshoot Routers, Switches, Linux Servers, DNS Server, Mail Servers ( Sendmail ), Perl Code, and Web Pages for wide variety of issues.
• DNS Subdomain Management, DKIM Email Configuration
• Install Operating Systems and Software
• Google Search Appliances

Technologies: Perl, PHP, MySQL Oracle, Linux (RHEL 3,4,5, FC 6-8 ), Solaris ( 2.6, 8, 9 ), Apache 2.x

Senior Developer

Confidential, Palo Alto, CA

Responsibilities:

• Design, Maintain, Monitor, and Optimize Homemade mod perl email system ( with qmail and strongmail servers on Linux ). delivery of approx. 6-7 million emails per day.
• Debug, Analyze and Troubleshoot Email Suite for complex issues like throttling bouncing email addresses and protection against mail based network DDoS attacks ( joe attacks, etc.. )
• Fix Bugs and add new code to existing mod perl code base, handling avg. 100,000 concurrent connections per second
• Caching and “Akamaizing” of Static Objects like images and .swf files.
• Use of homemade CGI Perl Templating system and homemade CGI Perl Translation Engine ( about 20 different languages )
• Extensive use of homemade MySQL/Perl DBI system which load balance queries between 100 active and 200 slave MySQL instances.

Environment: LAMP Fedora Core 5, Apache 2.x, MySQL 4.1, Perl 5.6.x

Senior Developer, Test/QA Engineer

Confidential, San Diego, CA

Responsibilities:

• Create Object Oriented Perl application suite which tests various aspects of Network Confidential Detection System.(C++)
• Signature Creation and Analysis. Event Detection. Packet Crafting and Packet Injection.
• Regression, Performance, and Soak Testing.
• Simulation of real-time LAN traffic in lab to 800 MB/sec.
• Maintain Test Lab with 100+ Linux Servers and Cisco Switches and Routers.
• Design, Wire, and Route new equipment to meet changing application demands.
• Maintain Confidential Wiki

Perl Application Analyst, System Analyst

Confidential, Santa Ana, CA

Responsibilities:

• Performance Tune existing Perl CGI application.
• Extensive Use of Perl DBI
• Upgrade MySQL database structure and design.
• Migrate from MySQL 3.23.56 to MySQL 4.1.14
• Create Reporting Database. Load Balance Queries. Design Backup and Recovery Strategies.
• Migrate Codebase to mod fastcgi 2.4.2 with further mod perl enhancements possible.
• Upgrade from RHEL 3 to RHEL 4 move from IA64 to IBM POWER architecture.

Perl Applications Developer, Project Architect

Confidential, Beverly Hills, CA

Responsibilities:

• Fedora Core 3, Apache 2.0.52, Perl 5.8.3, MySQL 4.1, MSSQL Server v7 & v8
• Create application which displays company business logic over the web.
• Secure Sockets implementation via OpenSSL, mod auth mysql authentication mechanism.
• Design MySQL Database
• Design and write Modular Perl Code Base, with CGI front-end ( no templating or external HTML files )
• Perl DBI interface for MySQL and MSSQL Server

Perl ETL Developer

Confidential, Rancho Bernardo/San Diego, CA

Responsibilities:

• Collect per-second diagnostic feeds from global laser installations.
• Perl/PHP/Shell production code-base transforms and loads data into local PostgreSQL diagnostic system.
• Spotchecking Code and Query Log analysis to make sure data loads properly
• Migrate legacy Oracle storage system to PostgreSQL.
• Indexes, Triggers, and Stored Procedures in Oracle and PostgreSQL.
• Performance tuning and Query Analysis with SuSE, Perl DBI, Oracle, and PostgreSQL SuSE 9.0 Enterprise Linux - 16 processors/ 32GB RAM
• Network Appliance storage system. Gigabit Ethernet LAN. NFS Shared mounts between PG, Oracle, and storage Systems.
• PostgreSQL 7.4.7 and Oracle 9i Databases. Perl 5.8.4 / PHP 4.3.4

Perl Applications Developer

Confidential, Herndon, VA

Responsibilities:

• HTML/JavaScript/Embperl/Perl/mod Perl Object Oriented proprietary Web application, running on Apache and RedHat Linux talking to a Solaris/Oracle database.
• Client enterprise data (networks, physical locations, devices, users, services, etc.) are entered into the ERM automatically with scan tools like kismet, nmap, nessus, and (proprietary) Netsig, and Scanner, and by hand.
• Algorithms are applied to the data and generate task lists which the organization must complete in order to obtain certain levels of security certification. (GLB, HIPPA, TICSA, Confidential v5.3, e.g.)
• Extensive use and creation of Object Oriented Perl in over 100 modules, Perl scripts, multi-threaded Perl background jobs (daemons), and Oracle stored procedures ( PL/SQL ).
• Create session tracking and load management MySQL databases and maintenance scripts.

Perl ETL Developer

Confidential, Frederick, MD

Responsibilities:

• Maintain medical supply, provisioning, and maintenance system which serve four branches of the United States Armed Services.
• Convert Informix OnLine provisioning system running on HP-UX from internal 2.0 -> 3.0 format.
• Perl DBI and shell scripts to manipulate database interaction
• Informix OnLine stored procedures, triggers, & ESQL
• Extensive use of Informix proprietary utilities to manipulate and format databases Perl Developer, System Administrator, Network