Linux Systems Engineer

General information

Requisition #

R71258

Locations

USA-FL-Doral

Posting Date

10/07/2026

Security Clearance Required

Secret

Remote Type

Onsite

Time Type

Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we've been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now-protect and innovate with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Linux Systems Engineer to join our team in Doral, FL.

Responsibilities include but are not limited to:

• Designing, installing, configuring, and maintaining Red Hat Enterprise Linux (RHEL) and other Enterprise Linux server operating systems.
• Managing enterprise Linux infrastructure, system patch management, performance monitoring, and system administration workflows.
• Collaborating with cross-functional technical teams, network engineers, and system architects to ensure system availability and secure baseline integration.
• Troubleshooting complex system hardware, operating system errors, software dependencies, and network connectivity issues.
• Automating routine system administration tasks using scripting languages and configuration management frameworks (e.g., Ansible, Bash, Python).
• Maintaining system baselines, configuration management controls, and comprehensive engineering documentation.

Minimum Qualifications:

• Bachelor's degree in Computer Science, Information Technology, Systems Engineering, or a related field with 3+ years of experience.

• OR a master's degree and 2+ or more years of relevant experience

• OR an associate's degree and 5+ or more years of relevant experience

• OR a high school diploma and 7+ or more years of relevant experience

• Strong background in writing automation and scripting tools using Bash, Python, or Ansible.

• Experience maintaining system baselines, system patching schedules, and central repository management controls.

• Experience creating, maintaining, and communicating complex technical documentation and infrastructure diagrams.

Preferred Qualifications:

• Relevant industry certifications such as Red Hat Certified System Administrator (RHCSA), Red Hat Certified Engineer (RHCE), or CompTIA Linux+.
• Prior experience supporting U.S. Military Command operations or Department of Defense enterprise technical environments.
• Familiarity with enterprise storage solutions (SAN/NAS), virtualized environments (VMware), and containerization technologies (Docker, Kubernetes).
• Knowledge of DoD STIG implementation, security baseline compliance, and automated auditing tools.

Clearance Requirements:

• Must hold a current/active secret security clearance.
• Must be eligible to obtain and maintain a TS/SCI clearance.

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

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.