ManTech International

Linux Systems Administrator

ManTech International$128K — $214K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in a technical field and 10+ years of relevant Systems Administration experience or an Associate's degree with 15+ years' experience.
  • 10+ years of experience in systems administration supporting IT development and testing environments.
  • Extensive experience with Linux administration and enterprise-level operating systems.
  • Proficient in Ansible or similar infrastructure-as-code tools.
  • Experience managing enterprise virtualization platforms and Storage Area Networks.

Responsibilities

  • Provide comprehensive administration and support for multi-platform operating systems.
  • Design and implement automated security hardening solutions.
  • Configure and maintain security and intrusion detection systems.
  • Monitor system performance and investigate anomalies.
  • Develop and deploy automation scripts for server integration.
  • Analyze system and security logs for real-time event response.
  • Engineer automation workflows for identity and access management.

Benefits

  • Health Insurance
  • Life Insurance
  • Paid Time Off
  • Holiday Pay
  • Short-term and long-term Disability
  • Retirement and Savings options
  • Learning and Development opportunities
  • Wellness programs
Full Job Description
General information

Requisition #

R67596

Locations

USA-MD-Fort Meade

Posting Date

05/06/2026

Security Clearance Required

TS/SCI w/ Poly

Remote Type

Onsite

Time Type

Full time

Description & Requirements

MANTECH seeks an experienced and passionate, career and customer-oriented Linux Systems Administrator to join our team located in the Fort Meade, MD area.

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.
  • Engineer automation workflows for identity and access management to replace manual account provisioning processes.
  • 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 to management.


Minimum Qualifications:
  • Bachelor's degree in a technical field and 10+ years of relevant Systems Administration experience; or an Associate's degree with 15+ years' experience.
  • 10+ years of experience in systems administration of software and hardware supporting IT system development and testing.
  • Extensive experience with Linux administration and enterprise-level operating systems.
  • Experience utilizing Ansible or comparable infrastructure-as-code tools.
  • Experience with NiFi or cross-domain solutions.
  • Experience managing enterprise virtualization platforms (VMware or similar) and associated Storage Area Networks (SAN).


Preferred Qualifications:
  • Experience with DevOps tools such as Docker, Kubernetes, SaltStack, or Puppet.
  • Proficiency in scripting languages including Python, Bash, or Perl.
  • Experience collaborating with teams to integrate and deploy new technologies into production environments.
  • Knowledge of network devices (routers, switches, gateways) and protocols such as TCP/IP, UDP, HTTP, DHCP, and DNS.

Clearance Requirement:
  • Current/Active TS/SCI with Polygraph


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.


The projected compensation range for this position is $128,000.00-$214,400.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

About ManTech International

ManTech International Corporation is an American defense contracting firm that was founded in 1968. The company provides cybersecurity, intelligence, and defense solutions to the United States Government. ManTech has over 9,000 employees and operates in 40 countries worldwide. The company's services include software development, systems engineering, and enterprise IT solutions. ManTech has been awarded numerous contracts by the U.S. Department of Defense and other government agencies.
Learn more about ManTech International
Size
9,800 employees
Market Cap
$3.7 billion
Industry
Net Income
$120.5 million
Founded
1968
5 Year Trend
+9.8%
Revenue
$2.5 billion
NASDAQ

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