Systems Administrator
McLean, MD - USA
Job Summary
Freedom Technology Solutions Group is looking for aLinux System Administrator (SA) to join our team at acustomer site in McLean VA to support a mission-critical geospatial data visualization application. The Linux SA willbe responsible for the day-to-day operation of enterprise Linux this role you will operate monitorsecure and maintain Linux-based infrastructure across physical virtual and cloud-hosted environments. Yourfocus will be on system availability performance backups security compliance and proactive operations usingautomation monitoring and disciplined operational practices to keep systems reliable and compliant. This is ahands-on role for an experienced Linux SA who takes ownership and operates effectively in availability- andcompliance-driven production environments.
Responsibilities:
- Administer configure and maintain enterprise Linux servers (RHEL 8) across on-prem and cloud environments ensuring system stability performance and security
- Support cloud-based infrastructure (AWS GCP) including provisioning Linux hosts monitoring system health and resource utilization and optimizing compute storage and cost as part ofday-to-day operations.
- Perform advanced troubleshooting of system network and application issues using in-depth log analysis and system diagnostics to identify root causes and resolve complex production problems.
- Perform OS maintenance activities including system updates patching performance tuning configuration management and security hardening in accordance with operational and compliance requirements.
- Develop and maintain automation using Bash Python Ansible or similar tools to streamline system administration tasks reduce manual effort and improve operational consistency.
- Install configure and support Linux-hosted software applications virtualization platforms and associated infrastructure components required to support mission workloads.
- Document system configurations operational procedures and troubleshooting guidance and contribute to shared knowledge bases to support team continuity and operational maturity.
- Provide tiered help desk support to system users including issue triage escalation and resolution.
- Participate in operational meetings and daily task coordination providing status updates and collaborating with team members and stakeholders to support ongoing system operations.
- Participate in an operational phone rotation to respond to time-sensitive issues outside of normal business hours.
Key Technologies
- Software: Apache Webserver PostGres SQL/PostGIS OMAR OSSIM RedHat Linux FreeIPA Microsoft Windows Server Microsoft Office Microsoft Internet Information Service OGC Web. Services (WMS WFS WCS) Google Earth Client Geospatial products.
- Hardware: Network Attached Storage (NAS) deployment and maintenance; firewall switch and router installation deployment and maintenance; server.
Required Qualifications
- TS/SCI with Polygraph.
- Bachelors degree in a related technical field.
- Minimum of 5 years of professional experience as a Linux System Administrator or in a closely related systems administration role supporting production environments.
- Demonstrated proficiency administering Linux systems (Red Hatbased and/or Debian-based distributions) including system configuration patching performance tuning and troubleshooting.
- Experience working with Elastic.
- Strong working knowledge of cloud environments especially AWS (compute storage monitoring).
- Proven ability to analyze system and application logs (e.g. syslog system journals application logs) to diagnose issues identify root causes and resolve complex problems.
- Solid understanding of infrastructure fundamentals including server hardware storage systems virtualization technologies and core networking concepts.
- Experience deploying maintaining and patching open-source and custom applications on Linux platforms in compliance-driven or regulated environments.
- Experience supporting security and compliance requirements for Linux systems including authentication and authorization fundamentals and support for ATO-driven operations.
- Ability to work independently with minimal supervision while also collaborating effectively within a technical team and communicating clearly with stakeholders.
- Strong problem-solving skills and the ability to communicate technical issues and resolutions effectively in both written and verbal form.
Desired Qualifications
- Experience supporting hybrid cloud and on-prem environments including familiarity with AWS and other government or IC cloud platforms (e.g. C2S).
- Exposure to automation and configuration management tools such as Ansible as well as scripting in Bash or Python beyond basic operational tasks.
- Familiarity with CI/CD pipelines and DevOps tools including Jenkins GitLab Docker Kubernetes or OpenShift.
- Experience supporting PostgreSQL.
- Familiarity with enterprise monitoring logging and observability tools and using metrics to improve system reliability and performance.
- Experience working with enterprise storage solutions (NFS NAS SAN) and backup/recovery platforms.
- Prior experience supporting mission data-driven or intelligence-community systems in classified or regulated environments.
- Relevant technical certifications such as Linux (RHCSA/RHCE) AWS Cisco or related infrastructure certifications.
Required Experience:
Unclear Seniority
Key Skills
About Company
Life. Liberty. Technology We approach mission challenges from our customer's perspective and deliver top-quality solutions with mission-speed efficiency. View Open Positions Freedom Skill Set Freedom’s experienced team has the expertise and a proven track record of delivery in a varie ... View more