Senior Linux Systems Administrator

  • MANTECH
  • Hanover, Maryland
  • Full Time

MANTECH seeks an experienced and passionate, career and customer-oriented Senior Linux Systems Administrator to join our diverse team in Hanover, MD . In this role, you will support our mission and contribute to a dynamic environment that values innovation and national security.

Responsibilities include, but are not limited to:

  • Provide comprehensive administration and support for multi-platform operating system environments
  • Design and implement automated security hardening solutions to enhance scalability and streamline operating system deployments
  • Configure and maintain host-based security and intrusion detection systems
  • Monitor system performance and investigate detected anomalies to ensure operational integrity
  • Develop and deploy automation scripts to manage server integration and reduce manual configuration errors
  • Analyze system and security logs to identify and respond to real-time events and provide status updates to leadership
  • Conduct regular audits to verify security compliance and identify potential vulnerabilities or configuration gaps
  • Participate in design and review meetings to provide technical insights, project goals, and status updates for management

Minimum Qualifications:

  • Bachelors degree in a technical field and 7+ years of relevant Systems Administration experience; or a High School Diploma/GED with 15+ years of relevant experience.
  • Extensive experience with Linux command line
  • Systems administration and troubleshooting experience
  • Experience utilizing Ansible or Terraform
  • Experience managing enterprise VMware and orchestration
  • Experience with Firewall administration and rules
  • Familiarity with scripting

Clearance Requirements:

  • Must have a current/active TS/SCI with Polygraph and be willing and able to obtain another polygraph prior to start

Physical Requirements :

  • Must be able to remain in a stationary position at least 50% of the time
  • Needs to occasionally move about inside the office to access file cabinets, office machinery, etc
  • Constantly operate a computer and other office productivity machinery, such as, the copy machine/fax machine/computer/printer
Job ID: 512681177
Originally Posted on: 3/6/2026

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