THOMAS VOLM
Fredericksburg
Summary
Senior Oracle DBA with a strong background in database administration, performance tuning, and security implementation. Collaborated with development teams to enforce security protocols and optimize database environments, ensuring reliability and efficiency in complex infrastructures.
Overview
23
23
years of professional experience
1
1
Certification
Work History
Oracle DBA
GDIT
03.2026 - Current
- Supported NCIS (Naval Criminal Investigative Service) business applications by maintaining 25 Oracle 19c databases across 13 servers, combining DBA responsibilities with system administration tasks.
- Migrated 2 large databases to new servers using DataPump and RMAN Restore.
- Performed STIG reviews on all systems to ensure compliance and security.
- Maintained RHEL 8 Linux OS to ensure optimal system performance.
- Provided technical support for GDIT to ensure operational efficiency.
Oracle DBA
APEX Systems
09.2025 - 03.2026
- Maintained 25 Oracle 19c databases across 13 servers for NCIS (Naval Criminal Investigative Service), integrating DBA and SysAdmin responsibilities to ensure optimal performance of business applications.
- Migrated 2 large databases to new servers using DataPump and RMAN Restore, ensuring seamless transition with minimal downtime.
- Conducted STIG reviews on all systems.
- Managed RHEL 8 Linux operating system configurations.
- Provided Oracle DBA support for GDIT (General Dynamics Information Technology), enhancing database management and operational stability.
Oracle DBA
MTH Consulting
11.2024 - 09.2025
- Provided database support for Booz Allen Hamilton (BAH), enhancing operational functionality.
- Contributed to MTH's role as a subcontractor under Booz Allen Hamilton after BAH secured the prime contract.
- Executed Oracle DBA duties at AlphaSix, ensuring database performance and reliability.
Senior Oracle DBA
AlphaSix LLC
Steerling
08.2023 - 11.2024
- Supported 9 development teams with Oracle DBs by implementing DB code in TEST/PROD, enforcing security and separation of duties.
- All DBs operated on Oracle SuperCluster hardware and in a RAC configuration.
- Utilized Oracle ASM for DB storage management, ensuring optimal performance and reliability.
- Partitioned data and controlled access using Oracle Label Security based on team requirements, enhancing data security.
- Supporting Peraton Inc.
Oracle DBA
Prime Technical Services
Atlanta
04.2023 - 08.2023
- Provided support to DISO CESO initiatives, enhancing project efficiency.
- Managed Oracle database environments for diverse applications, ensuring reliability and uptime.
- Implemented backup and recovery strategies, safeguarding database integrity and enhancing security measures.
- Optimized SQL queries, improving performance and reducing response time across multiple databases.
- Provided support for Leidos Inc. initiatives, contributing to overall objectives.
Principal Consultant
Oracle Inc.
Reston
06.2015 - 04.2023
- Supported 2 primary customers during this time on multiple projects.
- Customer 1, ODNI (Office, Director National Intelligence), 7/2015 - 12/2019
- Led upgrade from 11g to 12c for data warehouse and migrated databases from VMware VM hosts to AWS EC2.
- Implemented Database Vault/Data Guard on both 11g/12c platforms and on multiple databases to improve security/redundancy.
- Supported 11g/12c instances across SANDBOX/DEV/TEST/PROD development stack spanning 5 network sub-nets.
- As System Administrator, support a development team with internal SA support as well as coordinating with other SA teams to maintain a SANDBOX/DEV/TEST/PROD development stack using Linux OS in a heavy VM Environment before transitioning to C2S (AWS) EC2 hosts.
- As WebLogic Admin, supported Oracle's Business Intelligence tool (OBIEE) and WebCenter Content (WCC) with WebLogic installation and configuration, including setting up user accounts and security roles/groups.
- Used Oracle’s Data Integrator (ODI) application to support the migration/cleaning of data to support a Star Schema Data Warehouse.
- Customer 2, Intelligence Community, 12/2019 – 4/20/23
- Supported my customer with database restoration expertise.
- Given a set of files, determine if data extraction was possible, and if so, extract the data for ingestion into an RDS Oracle DB.
- Database types I’ve worked with include PostgreSQL, IBM DB2, MS SQL Server/Access and Oracle.
- Used PL/SQL and Python when needed to develop software tools to help with my work.
- Provide DBA support for 2-RDS Oracle instances and help with managing the customer’s (AWS) infrastructure.
- Configured complete DEV/TEST/PROD stack (1-Bastion/3-APP/1-DB) using AWS EC2s, including Oracle software installation, security certificates, and Active Directory registrations within a five-week deadline.
Oracle DBA
KForce Inc.
Reston
03.2015 - 06.2015
- Managed Oracle databases ensuring optimal performance and security.
- Monitored database systems for anomalies, resolving issues promptly to maintain operational stability.
- Configured storage and backup solutions, enhancing data integrity for Oracle databases.
- Developed detection and correction scripts to automate hardening of database and application servers, ensuring compliance with DISA STIG security requirements for military customer.
Oracle DBA
QVine Inc.
Reston
06.2014 - 03.2015
- Built DEV and TEST server stack (Web, App, DB) from scratch, installing and patching Oracle 11g and creating/loading DB instances using DataPump.
- DBA for 6-11g database instances, on a mixture of Windows 2008R1 and 2008R2 servers.
- Coded enhancements to PL/SQL stored procedures, stabilizing legacy system performance.
- Executed 2 NAS conversions, doubling storage capacity to 6TB.
Oracle DBA
TheGoal Inc.
Sterling
12.2010 - 06.2014
- Optimized performance and security of 8-11g database instances on Windows 2008R2 servers, supporting critical operations.
- Implemented Oracle’s RMAN and DataGuard to enhance data recovery and protection.
- Implemented Defense Information Systems Agency (DISA) STIG security standards.
- Maintained operational stability of 24x7 system for worldwide DEA operations, ensuring uninterrupted access to essential services.
- Executed Windows 2003/10g to Windows 2008/11g migration for all systems during Tech Refresh initiative, modernizing infrastructure.
Oracle DBA
Complete Data Solutions LLC
Fairfax
02.2010 - 12.2010
- DBA for four Oracle database servers in support of intelligence development for the Drug Enforcement Agency.
- Three of the databases were Oracle 11g (11.1/11.2) (DEV, QA/TEST, PROD) which supported 3 separate teams (Data Processing, Analysis, QA/Procurement).
- The 4th database was a legacy 9i, operating a DEA wide intelligence distribution system.
- Total data storage over 1TB.
- All databases ran on large HP-UX servers (8 CPU, 32G RAM).
- Managed all databases using three tools: Quest SPOTLIGHT, TOAD, and Leveraged Oracle Enterprise Manager to manage and administer databases.
- Oracle RMAN used for managing all backups.
- Supported 50+ users across departments in password management, schema development, SQL development, and import/export processes between development, test, and production environments.
- Developed Perl programs to process source data for analysts, ensuring data usability within the database.
Network Management Engineer/Oracle DBA
AT&T
Camp Arifjan
06.2006 - 11.2009
- Two databases supported the US Army’s SIPR (classified) network while the 3rd database supported NIPR (non-classified).
- Managed databases as data repositories for BMC Remedy trouble ticket systems across SWA (Southwest Asia) theater of operations.
- Maintained the accuracy of the eHealth database while coordinating with three separate network management teams (Kuwait-Qatar, Iraq, and Afghanistan).
- Deployed LiveHealth component of eHealth across theatre, creating alarm profiles to address customer requirements.
- Assistant Unix Admin, responsible for maintaining 22 high-usage SUN servers.
- These servers supported 5 separate applications on two versions of Solaris (9/10) and were spread throughout the SWA theatre of operations.
- Executed initial setup and maintenance of 2-2T SUN SANs, supporting backup needs for all deployed Solaris servers.
Oracle DBA
ITT Services Div
Camp Doha
02.2003 - 06.2006
- Managed multiple database instances across NIPR/SIPR networks, ensuring seamless support for Tivoli network diagnostic applications and Remedy trouble ticket system.
- Developed Korn shell and PL/SQL scripts for monitoring database performance, health, and backup/recovery, enhancing overall database reliability.
- Administered Oracle databases to ensure optimal performance and availability.
- Managed database backups and recovery processes to protect data integrity.
- Monitored system performance using enterprise monitoring tools for proactive maintenance.
Education
BA - Political Science
University of Colorado at Colorado Springs
Colorado Springs01-1984
Skills
- Oracle database management
- PL/SQL
- Database migration
- RMAN backup and recovery
- Database performance tuning
- Performance tuning
- Backup and recovery
- Database cloning
- Disaster recovery planning
- Table partitioning
- User access control
- UNIX Shell Programming
- Shell scripting
- PYTHON
- PERL
- LINUX
- Windows
- Solaris
- HP-UX
- AIX
- Cloud infrastructure support
- Infrastructure management
- Active TS/SCI w Poly
- Effective communication
- Problem solving
- Time management
- Technical documentation
- Memory management
- User access control
Certification
- COMPTIA Security+, SWB9SSW24G142XMW
- DASCA Associate Big Data Engineer, 8625374028, https://www.credbadge.com/credit/certified/8625374028/
Skills
25, 25, 1, 3, 10, 6, 12, 2, 25, Active TS/SCI w Poly
Timeline
Oracle DBA
GDIT
03.2026 - Current
Oracle DBA
APEX Systems
09.2025 - 03.2026
Oracle DBA
MTH Consulting
11.2024 - 09.2025
Senior Oracle DBA
AlphaSix LLC
08.2023 - 11.2024
Oracle DBA
Prime Technical Services
04.2023 - 08.2023
Principal Consultant
Oracle Inc.
06.2015 - 04.2023
Oracle DBA
KForce Inc.
03.2015 - 06.2015
Oracle DBA
QVine Inc.
06.2014 - 03.2015
Oracle DBA
TheGoal Inc.
12.2010 - 06.2014
Oracle DBA
Complete Data Solutions LLC
02.2010 - 12.2010
Network Management Engineer/Oracle DBA
AT&T
06.2006 - 11.2009
Oracle DBA
ITT Services Div
02.2003 - 06.2006
BA - Political Science
University of Colorado at Colorado Springs