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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Database Administrator, Senior (TS/SCI w/Poly) - **Company:** Parsons Corporation - **Location:** Baltimore, MD, United States - **Experience:** Expert - **Salary:** $112,200.0 - $196,400.0 - **Contract:** Permanent contract - **Skills:** Confluence, JIRA, Databases, Database Connection, Linux, Distributed Data Store, Document-Oriented Databases, Information Security Management, Networking Hardware, Intrusion Detection and Prevention, Network Security, Linux System Administration, Network Architecture, Networking Basics, Network Monitoring, Ansible, TCP/IP, Virtualization Technology, Data Logging, Enterprise Software Applications, Computer Network Technologies, Virtual Environment, Database Performance, Containerization, Atlassian Tools, Apache Nifi, Database Monitoring, Puppet, Cisco, Docker - **Published:** August 28, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9125718/database-administrator-senior-tssci-wpoly ## About the Role * Current TS/SCI clearance with Poly * Bachelor's degree in a technology discipline and 8+ years of experience; additional experience may substitute for a degree * Experience administering Linux operating systems in support of enterprise applications or database workloads * Experience supporting virtual environments and deploying Linux-based services used by databases * Experience with Cisco network devices, including networking fundamentals essential to database connectivity * Strong understanding of core networking technologies (TCP/IP, UDP, firewall concepts) as they relate to secure and reliable database operations Desired Qualifications: * Familiarity with modern data workflow tools such as NiFi * Experience with virtualization or container technologies (e.g., Docker) used to host database services * Familiarity with ELK or similar monitoring and logging stacks * Understanding of enterprise network services supporting authentication, logging, and distributed access control * Experience with automation tools such as Salt, Ansible, or Puppet * Experience with Atlassian tools (Confluence, Jira) * Background in network security, intrusion detection, and server/database monitoring * Experience installing or maintaining server and networking equipment in rack-mounted environments ## Description Parsons is seeking an experienced Database Administrator (DBA) with strong Linux systems administration and networking expertise. The DBA will support and maintain database systems hosted on Linux-based servers across both physical and virtual environments. This role includes ensuring database performance, reliability, and security while supporting the underlying Linux and network infrastructure required for distributed data operations. The ideal candidate will conduct daily database and system health checks, optimize performance, troubleshoot and resolve issues, coordinate upgrades, and collaborate with security personnel to maintain compliance. The ability to think critically, solve complex problems, and operate with minimal supervision is essential. What You'll Be Doing: * Perform daily maintenance and health checks for Linux-hosted database environments * Diagnose and resolve database, Linux system, and infrastructure issues in networked environments * Monitor and optimize both database and system performance using established tools * Plan and coordinate database upgrades, migrations, and scheduled system outages * Support network monitoring and maintain connectivity essential for database operations * Install and maintain server, storage, and networking equipment in datacenter environments * Document database architecture, configuration changes, and infrastructure updates * Work with the Information System Security Officer (ISSO) to maintain system authorization and compliance * Support occasional after-hours maintenance windows for critical database or system updates ## Related Videos - [Parquet, Delta, Iceberg & Ducklake - An introduction for developers](https://www.wearedevelopers.com/videos/100075-parquet-delta-iceberg-ducklake-an-introduction-for-developers) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Discover the open source trio you didn’t expect: .NET and PostgreSQL on Linux](https://www.wearedevelopers.com/videos/2042-discover-the-open-source-trio-you-didn-t-expect-net-and-postgresql-on-linux) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Making Data Warehouses Fast: A Developer’s Story](https://www.wearedevelopers.com/magazine/107-making-data-warehouses-fast-a-developer-s-story) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Top Big Data Technologies That You Need to Know](https://www.wearedevelopers.com/magazine/108-top-big-data-technologies-that-you-need-to-know)