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Senior Systems Administrator - Unix / Linux

Senior Systems Administrator - Unix / Linux

American Operations CorporationDahlgren, VA, US
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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
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    System Administrator • Dahlgren, VA, US