Skip to content

General information

Requisition #
R66731
Locations
USA-NM-Las Cruces, USA-CO-Denver
Posting Date
03/19/2026
Security Clearance Required
TS/SCI w/ Poly
Remote Type
Onsite
Time Type
Full time

Description & Requirements

Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now—unleash your potential with MANTECH!

***This is for a future opportunity***

MANTECH seeks a motivated, career and customer-oriented Senior Linux Systems Administrator to join our team in either Las Cruces, New Mexico or Denver, CO. In this role, you will support mission-critical infrastructure by designing, implementing, and maintaining enterprise Linux environments. You will work closely with cross-functional teams to ensure systems are secure, reliable, and optimized while also helping mentor junior administrators and contribute to infrastructure modernization initiatives.

Responsibilities include but are not limited to:

  • Designing, implementing, and maintaining enterprise Linux environments with a focus on Red Hat Enterprise Linux (RHEL)
  • Developing and maintaining infrastructure automation using tools such as Puppet, Ansible, or similar platforms
  • Managing physical and virtual server infrastructure across data center environments
  • Leading infrastructure projects and initiatives from planning through implementation
  • Mentoring junior administrators and providing technical guidance across the team
  • Performing hardware installations, upgrades, troubleshooting, and maintenance within data center facilities
  • Implementing security best practices, monitoring system performance, and optimizing system availability

Minimum Qualifications:

  • 8+ years of relevant technical experience to include Linux system administration experience with a strong focus on Red Hat Enterprise Linux (RHEL) and hands-on infrastructure support in enterprise environments
  • Proven experience with configuration management and automation tools such as Puppet, Ansible, Chef, or SaltStack
  • Hands-on experience supporting data center operations including server hardware installation and troubleshooting
  • Demonstrated experience mentoring junior administrators or serving in a senior technical or team leadership capacity
  • Strong troubleshooting, system performance tuning, and infrastructure support experience

Preferred Qualifications:

  • Candidates who bring additional DevOps, cloud, or containerization experience will be well positioned to support evolving infrastructure initiatives.
  • Experience with container technologies such as Docker, Podman, or Kubernetes
  • Familiarity with CI/CD pipelines and DevOps practices
  • Experience with enterprise monitoring and alerting tools such as Nagios, Zabbix, or Prometheus
  • Experience supporting or integrating with cloud platforms such as AWS, Azure, or Google Cloud Platform

Clearance Requirements:

  • An active TS/SCI with Polygraph is required.

Physical Requirements:

  • Must be able to remain in a stationary position 50% of the time.
  • Needs to occasionally move about inside the office or data center environment to access equipment, racks, and hardware systems.
  • Frequently communicates with co-workers, management, and customers, which may involve delivering technical updates or briefings. Must be able to exchange accurate information in these situations.

The projected compensation range for this position is $88,200.00-$146,900.00. 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.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.