United States Software Developer
Resume:
Lyndon W. Voorhees
Baker, Florida
************@*****.***
United States Citizen – TS with SCI eligibility
SUMMARY
I have twenty years of industry experience. I have knowledge, training and experience in many areas. My knowledge of computer, operating systems, programming languages, networking and systems allows me to see security holes and vulnerablities, where others don't. Platform expertise includes *NIX (Solaris, Linux, HPUX, Dec/Alpha) and Windows 2016/2014/2008/2003/2000. I have excellent communication and interpersonal skills. I am a fast learner and pick up new skills quickly. I have knowledge on applications, databases and servers. I am a problem solver, self-motivated and researcher. My experience includes reading ingesting, transforming loading data. I am a self-learning and self-motivator that can get the job done. My skills include backup and recovery, reindexing, performance tuning and writing sql queries. I can recognize, analyze, research, document results and make workable solutions. I can research, develop tools and to find vulnerabilities. My experience includes creating, designing software that mitigates security vulnerabilities. Problem solver, troubleshooter and self-learning technology.
WORK EXPERIENCE
Colsa under contract to USAF – April 2024 to present
Senior Linux Administrator
User support add/removing users, permissions
Installing and upgrading RHEL 9.x, creating local rhel repository, STIG.
ACAS, SCAP, nessus, Security Center, STIG
Installation of software Matlab, putty, numpy and others.
Backup & recovery – rear, Clonezilla, rsync
Configuring Cisco switch and networking, STIG
bash, powershell and python scripts, Anaconda, pip, pyinstaller
GIT
Kubernetes, Docker and Podman
CGI Federal under contract to USAF - Sept 2023 to March 2024
Senior Consultant, SME Application Software Developer
Amazon Linux platform used as development platform.
Oracle database writing scripts insert/update/deletes. Created or ran SQL and PL/SQL
Oracle SQL Developer was used for queries and review of data objects.
Create code in Java, J2EE, JSP, Struts, javascript
JBOSS starting/stopping/configuring.
Oracle Apex running queries for testing on pre-production database.
AWS WorkSpaces used as platform for creating Java code and held webserver.
Jira and Confluence used by organization for escalations.
Zephr was used for demonstrating, documenting code.
Redhat CodeReady (Eclipse Clone). Used for creating Java code.
Used GIT for code version control. Download from remote GIT repository and created local version for development.
Maven – compiled Java code.
Testing – unit test, documentation, code reviews. Demonstrated code and regression test to PMO and others.
HX5 under contract to USAF - June 2023 to Sept 2023
Database Administrator, Network/Computer Systems Developer Manager Senior.
Installed, configured and maintained Redhat 7 and Windows 10/11.
Used Hyper-v
Installed, configured and maintained Cassandra, Mongo and MS SQL Server.
AWS platform was used to contain all the virtual servers.
Created Powershell scripts and Powershell GUI.
Used for information organization information Jira and Confluence
Configured SSD hard drives to work with Windows 11.
DCS under contract to USAF - Nov 2022 to June 2023
Software Engineer/Computer Scientist V – (DCS won the recompete over ERC)
Redhat 8 and 7 installations, testing, hardening, selinux, firewalls, httpd, rhel satellite.
Cloudera 7, 6, 5 installation, configuration and maintenance.
High Performance Computer administration, configuration and maintenance. Engineers ran jobs on system, which I would have to start/stop on occasion when they when they stopped working.
Oracle database administration, backup and recovery 19, 12, RMAN, SELinux.
Vmware used to create virtual servers and vm snapshots.
Utilized Avamar for backup/recovery.
created Bash scripting, python and sql.
Hardening servers, database and applications with STIG, SCAP scans.
installing DOD certificate on servers and web servers.
Administered and maintained Puppet and Ansible. Created scripts.
Installed, maintained postgress and mysql for cloudera servers.
Maintained and debugged BIND server.
I used these tools when install/updating sssd, kinit, klist, keytool, openssl DOD Certificates. Some DOD Certificates had to be converted for JSSE certificate format.
ERC under contract to USAF - Jan 2020 to Nov 2022
Sr. Linux Administrator
Redhat 8 and 7 installations, testing, hardening, selinux, firewalls, httpd, rhel satellite, SELinux
Cloudera 7, 6, 5 installation, configuration and maintenance
HPC administration, configuration and maintenance
PBSpro administration
Oracle database administration, backup and recovery 19, 12, RMAN
Vmware for VM creation
Utilized Avamar for backup/recovery.
Bash scripting, python scripting
Hardening servers, database and applications. STIG, SCAP
installing certificate on servers
Installed, maintained postgres and mysql for cloudera servers.
Maintained and debugged BIND server.
Worked with sssd, kinit, klist, keytool, openssl.
Jacobs Engineering under contract to USAF - Jun 2017 to Jan 2020
Senior Linux Administrator/Oracle DBA
Redhat 5.5 and 6.8 patching, maintenance, SELinux and hardening.
Oracle 11.2 sql scripts, patching and maintenance.
SQL Server 2016 and 2014.
Created, maintained Bash scripting. Many tasks were automated.
Creating, testing sql scripts.
Documentation and review
Test procedures and review
Hardening server
SCAP scan and ST&E, ACAS
Created, tested, installed, maintained a Cross domain solution.
Open System Technology under Contract to FBI - Oct 2015 to Jun 2017
Senior Oracle DBA
Installed, upgraded, patched and maintained Oracle database 12c and 11g with RAC and ASM
Solaris 10 – 18 servers, zfs, patching, performance tuning.
Created, installed and maintained Bash and Korn shell scripting. Automated with Crontab.
Deploy developers SQL and Scripts.
Document procedure and installation documentation
Apply Oracle and Solaris O/S patches.
Performance tuning O/S and Database
STIG, SCAP and harden database and Solaris and Linux servers.
Used Putty, ssh, TOAD, SQL Developer and Vmware to manage servers, databases and virtual machines.
ARMA GLOBAL/General Dynamic under contract to United States Army - April 2014 to Oct 2015
Senior Oracle DBA/System Administrator
Oracle database 11g eight servers
Installed configured and maintained Six database using physical standbys using Oracle Dataguard
Maintained and patched Oracle Weblogic
Solaris 10 and 11 - eight servers – zones, nfs, zfs, ufs
Veritas Storage Foundation – managed storage creating LUNs, grouping for RAID and performance.
Created, maintained Bash, Bourne and Korn shell scripting – complexed logic. Automated task with crontab.
Assist developers with Sql and scripting.
Managing SAN space using Solaris and Veritas tools
Document procedures and implementation
Apply Solaris O/S patches and Database patches.
Multiple databases in terabyte sizes.
Performance tuning for servers and database including SQL.
STIG and hardening servers and databases.
TEKSYSTEM under contract to United States Army - February 2014 to March 2014
Senior Oracle DBA/System Administrator
Installed, managed, patched Oracle database 11g eight servers
Installed configured and maintained Six database using physical standbys using Oracle Dataguard.
Oracle WebLogic
Solaris 10 eight servers
Veritas Storage Foundation
Bourne and Korn shell scripting
Assist developers with Sql and scripting
Managing SAN space using Solaris and Veritas tools: LUN, WWN, space allocation.
Document procedures and implementation
STIG and hardening servers and databases.
ARMA GLOBAL under contract to United States Army - April 2012 to December 2013
Senior Oracle DBA/System Administrator
Database Administration: Oracle 11g & SQL Server 2008
System Administration Solaris 10 and Redhat 5/6
Installing O/S and Hardening Servers and Database
RMAN, RAC, Data Guard, ASM, expdb, impdb, Backup and Recovery, Disaster Recovery planning
Database ETL for Oracle and SQL Server
Automate task with bourne, korn and batch scripts.
PL/SQL and TSQL programming
Performance tuning – servers, database, SQL and programs
Systems & Database Architecture, Design and Integration.
Assist developers with custom code on production and development.
Java programming
Business Process Modeling and System Architecture
STIG and hardening servers and databases.
TEKSYSTEM under contract to United States Army - September 2003 to March 2012
Senior Oracle DBA/System Administrator
Database Administration: Oracle(11g, 10g and 9i) & SQL Server(2008, 2005 & 2000)
System Administration on RedHat 5, Solaris 10, Window 2008/2003/2000
Installing O/S, backup and recovery, SELinux and Hardening Servers and Database
RMAN
Backup and Recovery, disaster recovery planning
Database ETL
Maintain 85 production servers.
Automate task with scripts.
Administer MS SQL Server Report Services and replication
C++ and Java programs for moving data and utilities.
PL/SQL and TSQL
TomCat and IIS administration
Troubleshooting kerberous authentication for application.
Troubleshooting application performance problem related to network, database, hardware and O/S.
Systems Architecture, Design and Integration.
Implemented developer customer code to production and monitored.
Performance tuning – SQL, O/S, hardware.
Business Process Modelling and System Architecture
VECOR
Senior Oracle DBA - June 2003 to September 2003
Database Administration
Backup and Recovery
Java programming batch and interface
Korn scripting
TRITON SERVICES under contract to NSA - January 2003 to June 2003
Senior Oracle DBA/Java Engineering
Develop using Java, Javascript, JSP, ANT and Oracle. The work was on Linux and MS2000.
Tools: Oracle8, sql*plus, Toad, ANT, Netbeans, Visio, Tarantella
The application created and modified were for user surveys and information display. Populated database using scripts. Transformed data using ETL techniques. Created user documentation, dataflow and ER diagrams
TRITON SERVICES under contract to UNITED STATES NAVAL AVIATION DEPOT
DBA/Designer/Developer - May 2002 to December 2002
Analysis, design, develop, test, quality assurance a Data warehouse. Multiple level in depth security, System requirement gathering, ERD, Process Flows, logical modeling, Software Lifecycle Development documentation. Software Design Specification. Test, acceptance and sign off documentation.
Install Oracle 9i, Oracle9i Application Server, Microsoft Windows 2000 Advance Server and Linux 7.3 and Linux 2.1 Advanced Server.
Install Oracle Internet Directory - LDAP and PKI, Installed Oracle Portal
Tools: Designer, Oracle9i, Oracle9i Application Server, Oracle9i Portals, Oracle Forms6i, Oracle Reports6i, PERL, KORN, UNIX(Solaris, HPUX), NT/2000.
Aircraft repair and parts manufacturing, maintenance, supply, accounting and HR data.
Data Warehouse, Operation Data Store(ODS) and Data Marts.
Star Schema and Snow Flake
NORTHRUP-GRUMMAN under contract to USPS - - April 2000 to November 2001
Senior Oracle Database Administrator
Monitor, backup & recovery, performance tuning, installation, upgrades, patches, shell scripting, automation, space management, reindexing and import/export, configuration management.
UNIX (Solaris), NT (2000,NT), MVS(370,390)
SQL, PL/SQL, OEM, dbverify, tkprof, RMAN, Oracle Financials 11i, qbasic, cron, TSO, ISPF, vi, Remedy, standby databases, parallel server, MTS, advanced replication, and Sun High Availability, terminal server, server manager, NT scheduler, PC anywhere.
Provide third tier help desk, report to management, recommend improvements and proactive troubleshooting, SQL tuning, database(table, index, block and more) tuning. security, Remote server and database management
24x7x365 environment. Most were high visibility to Management, Employee or Postal Customers.
estimate over 1000 Oracle instances, SUN, NT and MVS. terabytes of data
1 parallel server, 200 standby databases, 10 Oracle Application server, 1000+ NT servers
200 Sun servers, several Sun High availability systems
Utilized Change management tools.
LOCKHEED-MARTIN under contract to EPA - February 1999 to April 2000
Oracle Database Administrator
Monitor, install, Korn shell scripting, Oracle (7 and 8) database design and review and upgrades, SQL*PLUS, sqlloader, dbverify, tkprof, OEM, SQL and PL/SQL, vi, TOAD.
HPUX, DEC/Alpha, MVS, transaction enabler, Process Flow diagrams, Remedy and PERL.
Oracle and Oracle application Help Desk support. Security
Worked with Developers and EPA project managers.
Data mapping, ETL
Technical consultant
EDI
Cool:Gen Administration, Cool:Gen transaction enabler
Data modeling
Application and data model reviews.
Database contained information on clean water, accounting and other.
Business Process Modeling and System Architecture
LOCKHEED-MARTIN under contract to EPA - January 1998 to February 1999
Sr. Software Engineer
Analysis, requirement gathering, design, development, programming, maintenance.
Designer2000/Developer2000, installation, SQL*PLUS, sqlloader, OEM, SQL and PL/SQL, ERWIN, ETM, ETL, visio and crystal reports
Responsible for backup/recovery and import/export, configuration management.
Program in FoxPro and C; convert FoxPro and C programs to Oracle, automation.
Developed FoxPro program using nonparametric statistic for Fish sampling.
Created and maintained FoxPro accounting programs. Automation and work force enhancements.
Analysis, Process flow diagrams, ERD diagrams, Business Objects, object oriented design and object oriented modeling, windows programming.
Hardware, network and operating system upgrades.
Utilized sourcesafe and Visio, reporting to management.
ActiveX, OLE and ODBC
Data modeling and architect performed
testing and quality assurance.
ADVANTAGE CARE, INC. - January 1997 to January 1998
Developer
Designed, developed, programmed, maintained medical, accounting and financial programs.
Data warehouse import patient data into warehouse. Extract, Mapping and Transform(EMT) and loading. Star Schema and Snow Flake.
analyzed, created, designed, developed, implemented EMT prescription datamart
datamart for prescription data.
Created specialized preventive care reports for medical staff. Identified possible patient that needed certain preventive care treatments. Example babies need shot at specific age, women and men need specific test at some age. Patient need special test based on past medical diagnostic codes.
Statistical sampling for quality assurance.
Created accounting program to connecting patient and prescribing doctor to prescription and laboratory costs utilizing PICK, FoxPro and Oracle databases. These programs reduced medical costs, fraud and waste.
Hardware and network upgrades. Reporting to management. Reduced network problems.
Platforms: NT, 95, UNIX(HPUX)
SQL, FOXPRO(3.0), Oracle, PC anywhere, crystal reports
testing and quality assurance. Documentation. Requirements gathering. Analysis. ERD and work flow diagrams.
Business Process Modeling and System Architecture
CROSS-SELL INC. - October 1994 to December 1996
Operational Analyst
FoxPro(2.6), crystal reports and C programming on automobile data. Automation. Hardware upgrades. ETL. Testing and quality assurance. Documentation.
EDUCATION
North Carolina State University 2012-2013 (Assembler, Discrete Math)
Wake Tech Community College – 2009 to 2011 (C++{beg, int., adv.}, JAVA {beg., adv.})
North Carolina State University - 2003
Lexington Community College CIS – 1995 (networking, SQL, RDBMS, C, Systems Analysis)
University of Kentucky – 1994 (Novell{3x, 4x}, network cabling, LanAnalysis)
Florida State University BS Economics (minors: statistic, computer programming, business)) 1985
Tallahassee Community College AA 1983
(University level- computer course semeter hr 46, math hr 9, statistic hr 15)
active certificates
CISSP 2011 Certificate# 409307 exp. Oct. 31, 2026
CompTIA Linux+ Certificate id COMP001022556332 exp. June 21, 2027
Classes & Training
Redhat System Administration I version 7 RH134 2018
Redhat System Administration I version 7 RH124 2018
Redhat System Administration version 6.2 RH199 2015
Solaris O/S 10 2013
Parallax – “Basic Digital to Analog” (Robotic, Electronic & embedded prog. PBASIC) 2013
Parallax - “Robotics with the Boe-Bot “ (Robotic, Electronic & embedded prog. PBASIC) 2012
Parallax - “What’s a microcontroller?” (Electronic & embedded prog. PBASIC) 2012
Digital Data Protection Course Level I 2012
Encase Forensic Tools 2011
Security+ 2011 & 2009
Certificate Sun Developing J2ee[tm] Compliant Applications(FJ-310) 2003
Certificate Oracle Database Administration 1999
Certificate Oracle Backup & Recovery Workshop 1999
Certificate Oracle Performance Tuning 1999
Certificate Oracle Network Administration 1999
Certificate Oracle Introduction to PL/SQL and SQL 1999
Certificate Oracle Introduction to Designer2000 1998
Certificate Network Cabling and Hardware 1995
Certificate LAN Analysis and Troubleshooting 1995
Certificate Introduction to Supervising Novell 4.x 1995
Certificate in DOS & Microcomputer Architect Novell 1995
Certificate in Supervising Novell 3.x 1994
Certificate in Advanced Excel 1994
Certificate of Electrical and Electronics Lively Vo-Tech – 1981
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