New

Senior Systems Administrator with Poly

BigBear.ai
United States, Maryland, Annapolis Junction
Jan 24, 2026
Overview Senior Systems Administrator Location: On-Site at Customer Location (Annapolis Junction, MD) Clearance Required: TS/SCI with Poly Are you ready to take your systems administration expertise to the next level and support mission-critical operations? BigBear.ai is seeking a Senior Systems Administrator to join our team and assist in meeting the needs of our government customer. In this role, you'll work onsite at the assigned customer location, ensuring optimized system performance, security, and reliability. If you're passionate about Linux systems, virtual environments, and delivering innovative solutions in a fast-paced environment, we want to hear from you! What you will do Manage & Optimize Systems: Oversee the customer's Risk Management Framework and related systems to ensure optimal performance and security. Support System Upgrades: Patch, upgrade, and migrate Linux systems and virtual machines (VMs) to maintain system integrity and performance. Contribute to Agile Development: Participate in agile activities, including release planning, sprint planning, and retrospectives, to incorporate lessons learned into engineering processes. Collaborate with Developers: Work closely with developers throughout the application development lifecycle to build features that deliver value to our customers. What you need to have Experience: Bachelor's degree and 10+ years of systems administration experience. Clearance: TS/SCI with Poly (required). Technical Expertise: Proficiency with Linux, including a minimum of 3 years of Linux system administration experience (within the last 3 years). Knowledge of physical and virtual servers. Experience researching and creating solutions to close Information Assurance Vulnerability Alerts (IAVAs). Hands-on experience with Ansible for automation. Proven ability to build and maintain VMware environments. Certifications: Security+ certification (required). What we'd like you to have Experience with AWS cloud environments. Scripting experience (Python/Perl) for automation and task optimization. Familiarity with Docker for containerization. About BigBear.ai BigBear.ai is a leading provider of AI-powered decision intelligence solutions for national security, supply chain management, and digital identity. Customers and partners rely on Bigbear.ai's predictive analytics capabilities in highly complex, distributed, mission-based operating environments. Headquartered in McLean, Virginia, BigBear.ai is a public company traded on the NYSE under the symbol BBAI. For more information, visit https://bigbear.ai/ and follow BigBear.ai on LinkedIn: @BigBear.ai and X: @BigBearai. BigBear.ai is an Equal opportunity employer all protected groups, including protected veterans and individuals with disabilities.