Talent.com
Sr. Systems Administrator - Unix/Linux
Sr. Systems Administrator - Unix/LinuxAmerican Operations Corporation • Dahlgren, VA, US
Sr. Systems Administrator - Unix / Linux

Sr. Systems Administrator - Unix / Linux

American Operations Corporation • Dahlgren, VA, US
job_description.job_card.variable_days_ago
serp_jobs.job_preview.job_type
  • serp_jobs.job_card.full_time
  • serp_jobs.filters_job_card.quick_apply
job_description.job_card.job_description

As a Senior Systems Administrator specializing in Unix / Linux, you will be responsible for the effective management, maintenance, and configuration of our Unix and Linux-based systems. You will play a critical role in ensuring system performance, security, and reliability while providing technical expertise and support to various teams across the organization.

Key Responsibilities :

  • System Administration : Manage, configure, and maintain Unix and Linux server environments, ensuring optimal performance, security, and availability.
  • Performance Tuning : Monitor system performance and proactively resolve issues using diagnostic tools and techniques to optimize resource utilization.
  • Security Management : Implement and enforce security configurations, policies, and practices to protect systems from unauthorized access and vulnerabilities.
  • Patch Management : Develop and execute patch management strategies to ensure systems are up-to-date with the latest security updates and software enhancements.
  • Backup and Recovery : Design and manage backup and disaster recovery solutions to ensure data integrity and availability.
  • Automation : Create and maintain scripts (using Bash, Python, or other scripting languages) to automate routine tasks and improve operational efficiency.
  • Technical Support : Provide advanced troubleshooting and support for system-related issues, collaborating with other IT teams as necessary.
  • Documentation : Maintain system documentation, including configuration files, standards, and procedures for backup, recovery, and system integration.
  • Collaboration : Work closely with development, network, and cybersecurity teams to deploy and support applications within Unix / Linux environments.
  • Training : Mentor junior system administrators and assist with onboarding new team members.

Requirements

  • Five (5) years of professional experience in relation to UNIX and / or Linux system administration of networks and software systems.
  • Experience in system backup / recovery, basic software management, security and library management, installation and configuration of hardware, operating systems and COTS software, operating computer systems in different operating environments, sizing, performance, tuning, hardware / software / network trouble shooting and resource allocation.
  • Experience in maintaining proficiency in major network security tools such as firewalls.
  • Experience developing system specifications and performing market research procurement tasks.
  • Experience with different network protocols including TCP / IP.
  • Experience of computing and networking vulnerabilities, and attach and latest detect methods.
  • This position is required to be designated as IAT II level with a T5.
  • Benefits

  • Health Care Plan (Medical, Dental & Vision)
  • Retirement Plan (401k, IRA)
  • Life Insurance (Basic, Voluntary & AD&D)
  • Paid Time Off (Vacation, Sick & Public Holidays)
  • Short Term & Long Term Disability
  • serp_jobs.job_alerts.create_a_job

    System Administrator • Dahlgren, VA, US

    Job_description.internal_linking.related_jobs
    Sr. Systems Administrator (Unix / Linux) - Navy - Top Secret / SCI Required

    Sr. Systems Administrator (Unix / Linux) - Navy - Top Secret / SCI Required

    cFocus Software Incorporated • Dahlgren, VA, US
    serp_jobs.job_card.full_time
    serp_jobs.filters_job_card.quick_apply
    Systems Administrator (Unix / Linux) to join our program supporting the Department of Defense (DoD).This position requires the ability to obtain a Top Secret / SCI clearance. Six (6) years of profession...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days
    System Engineer Manager - Hosting

    System Engineer Manager - Hosting

    Leidos Inc • Camp Springs, MD, United States
    serp_jobs.job_card.full_time
    Leidos Digital Modernization sector is seeking an experienced.USCIS Enterprise Automation & Unified Task Orchestration (eAUTO). O7 IT services that integrate automation, cloud, hosting, and unified ...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
    Senior Systems Engineer

    Senior Systems Engineer

    Stahl Companies • Dahlgren NSWC, Virginia, US
    serp_jobs.job_card.full_time
    serp_jobs.filters_job_card.quick_apply
    STAHL Companies provides the Program Management for its Channel of Commercial Technology companies in Government that consist of Small Businesses and New Technology start-ups.STAHL advocates for po...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days
    Customer Technical Support Specialist (Navy Enterprise Network)

    Customer Technical Support Specialist (Navy Enterprise Network)

    Puyenpa • Dahlgren, VA, United States
    serp_jobs.job_card.full_time
    The Puyenpa family of companies that are comprised of multiple SBA Certified Native American Tribal 8(a) and multi-certified organizations focused on delivering Information Technology, Management C...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
    Human Resources Intern Spring 2026

    Human Resources Intern Spring 2026

    Kings Dominion • Tappahannock, VA, USA
    serp_jobs.job_card.temporary
    Kings Dominion Spring Human Resources Internship Program for 2025.Our program is more than just a job or a simple internship, it’s a lifetime opportunity to gain hands-on experience, make lasting f...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
    Senior Systems Administrator (TS / SCI)

    Senior Systems Administrator (TS / SCI)

    Innovative Data Solutions LLC • Fort Belvoir, VA, US
    serp_jobs.job_card.full_time
    serp_jobs.filters_job_card.quick_apply
    Company Overview Innovative Data Solutions (IDS) is a small business specializing in engineering and supporting mission critical IT infrastructure for the US Government Intelligence, Defense a...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_30
    Senior Systems Administrator (Unix / Linux)

    Senior Systems Administrator (Unix / Linux)

    Network Designs Inc. • Dahlgren, VA, USA
    serp_jobs.job_card.full_time
    serp_jobs.filters_job_card.quick_apply
    NDi) is a leading Federal contractor that specializes in designing, developing, and delivering information technology and network solutions for government customers. Founded in 1985, NDi's firmly de...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days
    Senior Systems Administrator

    Senior Systems Administrator

    Agil3 Technology Solutions (A3T) • •Alexandria, VA, US
    serp_jobs.job_card.full_time
    serp_jobs.filters_job_card.quick_apply
    The Senior Systems Administrator is responsible for managing and maintaining the IT infrastructure, ensuring the secure, reliable, and efficient operation of all systems. This role includes overseei...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_30
    Sr. Systems Analyst

    Sr. Systems Analyst

    DirectViz Solutions, LLC • Dahlgren, VA, USA
    serp_jobs.job_card.full_time
    serp_jobs.filters_job_card.quick_apply
    DirectViz Solutions (DVS) is a dynamic and rapidly growing government contractor committed to delivering innovative IT solutions that address the mission-critical needs of our government clients.Th...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_30
    Senior Systems Engineer

    Senior Systems Engineer

    Leidos Inc • Alexandria, VA, United States
    serp_jobs.job_card.full_time
    Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations, and decision analytics to support our d...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_30 • serp_jobs.job_card.promoted
    Senior Systems Administrator (Unix / Linux)

    Senior Systems Administrator (Unix / Linux)

    DirectViz Solutions, LLC • Dahlgren, VA, USA
    serp_jobs.job_card.full_time
    serp_jobs.filters_job_card.quick_apply
    DirectViz Solutions (DVS) is a dynamic and rapidly growing government contractor committed to delivering innovative IT solutions that address the mission-critical needs of our government clients.Th...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_30
    Systems Administrator (Unix / Linux) - Navy - Top Secret / SCI Required

    Systems Administrator (Unix / Linux) - Navy - Top Secret / SCI Required

    cFocus Software Incorporated • Dahlgren, VA, US
    serp_jobs.job_card.full_time
    serp_jobs.filters_job_card.quick_apply
    Focus Software seeks a Systems Administrator (Unix / Linux) to join our program supporting the Department of Defense (DoD). This position requires the ability to obtain a Top Secret / SCI clearance.Thre...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days
    Senior Systems Engineer (S)

    Senior Systems Engineer (S)

    SimIS Inc. • Dahlgren, VA, US
    serp_jobs.job_card.full_time
    serp_jobs.filters_job_card.quick_apply
    Veteran Owned Small Business (VOSB) that models future environments, requirements, and capabilities, and then secures the enterprise from internal and external threats compliant with Federal, State...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_30
    Senior Cyber Systems Engineer

    Senior Cyber Systems Engineer

    LMI Consulting, LLC • Fort Belvoir, VA, United States
    serp_jobs.job_card.full_time
    Salaried High Fringe / Full-Time.Army systems, networks, and data from potential threats.This role requires a proactive approach to identifying vulnerabilities, implementing security measures, and en...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
    Infrastructure / Systems Administrator

    Infrastructure / Systems Administrator

    Trinity Global Consulting • 20762, MD, US
    serp_jobs.job_card.full_time
    Software Support Defense Medical Logistics Standard Support (DMLSS) User, Network Support, Technical Support Application Virtualization Hosting Environment (AVHE) and System Support access and trou...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
    Hiring our Heroes Skillbridge - Systems Engineer

    Hiring our Heroes Skillbridge - Systems Engineer

    SYSTEMS PLANNING AND ANALYSIS, INC. • Alexandria, VA, US
    serp_jobs.job_card.full_time
    Systems Planning and Analysis, Inc.SPA) delivers high-impact, technical solutions to complex national security issues.With over 50 years of business expertise and consistent growth, we are known fo...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_30 • serp_jobs.job_card.promoted
    IT Service Management (ITSM) Analyst

    IT Service Management (ITSM) Analyst

    Puyenpa • Dahlgren, VA, United States
    serp_jobs.job_card.full_time
    The Puyenpa family of companies that are comprised of multiple SBA Certified Native American Tribal 8(a) and multi-certified organizations focused on delivering Information Technology, Management C...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_variable_days • serp_jobs.job_card.promoted
    ENGINEER

    ENGINEER

    Naval Sea Systems Command • Dahlgren, VA, US
    serp_jobs.job_card.permanent +1
    You will contribute to the development of rapid engineering solutions to emergent non-conventional threats, specializing in turning high level requirements into engineering designs that integrate m...serp_jobs.internal_linking.show_more
    serp_jobs.last_updated.last_updated_30 • serp_jobs.job_card.promoted