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# Principal Linux Systems Administrator TS/SCI w/Poly

- **Company:** Amentum Services, Inc.
- **Location:** Annapolis, MD, United States
- **Experience:** Expert
- **Salary:** $180,000.0 - $250,000.0
- **Contract:** Permanent contract
- **Skills:** Software Applications, Computer Networks, System Configuration, Data Security, Linux, Elasticsearch, Federal Information Processing Standards (FIPS), Monitoring of Systems, IP Addressing, Virtual Private Networks (VPN), McAfee VirusScan, MongoDB, Network Attached Storage (Server Appliance), Routing, Network Administration, Nginx, Open Source Technology, Red Hat Enterprise Linux, Ansible, Prometheus, Virtual Local Area Networks, Virtual Machines, Data Logging, Grafana, Gitlab, Low Latency, Docker
- **Published:** July 17, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=978ba7a5eb0a1396

## About the Role

* Network administration including installing, configuring, and maintaining net devices; configuring various routing protocols, troubleshooting multi-hop connectivity, throughput, and latency; setting up firewalls. Responsible for secure infrastructure and vulnerability corrections, data security, compliance, and backups and recovery. Maintain SSPs, STE/STN requirements via RMF, Netseer, SEAR logging, patching, IAVMs, McAfee, and UAM.
 * Experience deploying and maintaining nginx; system monitoring platforms like OpenVAS, Prometheus and Grafana; SELinu x and FIPS
 * Knowledge of LatteArt/Biscotti, Netseer, SEAR logging

Security Clearance Required:

 * TS/SCI Poly

Minimum Years of Experience:

 * A Doctoral degree plus 7 years of relevant experience, or
 * a Master's degree plus 9 years of relevant experience, or
 * a Bachelor's degree plus 11 years of relevant experience, or
 * an Associate's degree plus 13; or 18 semester hours of military coursework/training in a computer-related field plus 10 years of relevant experience, or
 * a High School diploma/GED plus 15 years of relevant experience.

Preferred Qualifications:

 * Familiarity with Docker, MongoDB, and Elastic Search; Ansible and GitLab; RedHat Satellite. Working knowledge of software-defined networks.

#javelin #ICpoly

## Description

Amentum is seeking a motivated and experienced Linux Systems Administrator for a small, diverse team that provides end-to-end software, systems, and network engineering services to support Integrated Discovery Operations (IDO). You will lead, evolve, and maintain a dynamic, modern DevOps architecture, often based on open-source technology and not relying on corporate baselines, to support software developers, phased system upgrades, compliance, and improvements aimed at ensuring continued execution of the IDO mission. We aim to improve availability and reliability, reduce latency, and optimize performance, while maintaining the security posture., * Design, maintain, and support operations and maintenance (O&M) activities of a large enclave comprised of various hardware, software, and network components to include server architecture, virtual machines, managed switches, NAS, VLANs, and VPNs. Develop and carry out strategies to migrate existing customers to new architecture and technology with minimal impact. Evaluate new technologies or equipment that can be added to Agency standard solutions.

 * Responsible for user-level support, including interacting with system-savvy developers and analysts, resolving network, computer, and virtual system issues & anomalies.
 * Maintain enclave documentation (network diagram, system names, IP addresses, barcodes, etc.); provide monthly activity report to include system outages., Safety - Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.

Quality - Quality is the foundation for the management of our business and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations. Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities.


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