Senior Database Administrator – TS/SCI On‑Site

CACI International Inc; St. Louis (MO); On-site; USD 90,300 - 189,600; Full time

Job summary

CACI International Inc is seeking a Database Administrator for an on-site role in support of Corporate Business Information Systems. You will manage Oracle, MSSQL, PostgreSQL, MySQL, and NoSQL platforms while ensuring data integrity and system reliability.

Expect collaboration across networks and enterprise applications such as Momentum and PeopleSoft. The position emphasizes hands-on DBA work, automation scripting, and cloud/Linus expansion, with after-hours/on-call rotations and a strong

Qualifications

• Active TS/SCI clearance with ability to obtain a polygraph.
• Bachelor’s degree in computer science, information systems, engineering, or related technical field.
• Minimum 7 years of related experience.
• AWS Cloud Practitioner Certification.
• Hands-on experience installing and administering Oracle Grid Infrastructure, RDBMS, Cloud Control, and ASM.
• Strong Linux administration skills.
• Experience with database cloning, monitoring, performance optimization, patching, and O&M activities.
• Proven ability to develop and maintain automation scripts.
• Solid understanding of AWS services: EC2, EBS, snapshots, DMS, DynamoDB, Lambda, and S3.
• Strong problem-solving, organizational, and communication skills.
• Ability to work at a computer for extended periods and move between workstations.
• IT security expertise and experience working within accredited environments.

Responsibilities

• Support and administer Oracle RDBMS environments, including Oracle Grid Infrastructure, ASM, Data Guard, and Oracle Enterprise Manager Cloud Control.
• Provide database administration across multiple platforms: Oracle, MSSQL, PostgreSQL, MySQL, and NoSQL systems (MarkLogic, MongoDB, DynamoDB).
• Perform routine backup, restore, and disaster recovery operations using RMAN, snapshots, and archive log management.
• Troubleshoot system, database, hardware, and network issues; analyze performance and resolve complex technical problems.
• Create and execute ad-hoc SQL queries for diagnostics, analysis, and issue resolution.
• Manage and maintain Linux operating systems and associated file systems.
• Develop and maintain administrative scripts in various languages.
• Conduct regular server audits to ensure compliance with standards, policies, and configuration guidelines.
• Maintain user accounts and ACLs on network file systems.
• Support system-level changes, assess impacts, and participate in technical exchanges with stakeholders.
• Ensure compliance with IT security, accreditation, and enterprise policies.
• Provide exceptional customer service to internal teams, external partners, and vendors.
• Participate in after-hours and on-call rotations as needed.

Skills

Clearance TS/SCI

Bachelor’s degree

7+ years experience

AWS Cloud Practitioner

Linux administration

Automation scripting

Problem solving

Education

Bachelor’s degree in computer science / information systems / engineering

Tools

Oracle Grid Infrastructure

Oracle RDBMS

Oracle Cloud Control

Oracle ASM

RMAN

Data Guard

Oracle Enterprise Manager

SQL Server

PostgreSQL

MySQL

NoSQL (MarkLogic, MongoDB, DynamoDB)

AWS EC2

AWS EBS

DMS

DynamoDB

Lambda

S3

Linux

Job description

CACI International Inc is seeking a Database Administrator for an on-site role in support of Corporate Business Information Systems. You will manage Oracle, MSSQL, PostgreSQL, MySQL, and NoSQL platforms while ensuring data integrity and system reliability.

Expect collaboration across networks and enterprise applications such as Momentum and PeopleSoft. The position emphasizes hands-on DBA work, automation scripting, and cloud/Linus expansion, with after-hours/on-call rotations and a strong