Linux Systems Engineer

MANTECH; Miami (FL); On-site; USD 90,000 - 130,000; Full time

Job summary

MANTECH in Doral, FL seeks a motivated Linux Systems Engineer to join our team. You will design, install, configure, and maintain Red Hat Enterprise Linux servers and related enterprise infrastructure, ensuring availability and secure baseline integration.

The role requires strong scripting with Bash/Python/Ansible, hands-on patch management, and documentation of complex infrastructure. A current security clearance is preferred for DoD environments, with collaboration across cross-functional

Qualifications

• Bachelor’s degree in CS/IT/SE with 3+ years of experience.
• Alternative: master’s with 2+ years relevant experience.
• Or associate’s with 5+ years relevant experience.
• Or high school diploma with 7+ years relevant experience.
• Strong scripting in Bash, Python, or Ansible.
• Experience maintaining system baselines, patching schedules, and central repository management.
• Experience documenting complex infrastructure diagrams and docs.

Responsibilities

• Designing, installing, configuring, and maintaining RHEL and other Enterprise Linux servers.
• Managing enterprise Linux infrastructure, system patch management, performance monitoring, and workflows.
• Collaborating with cross-functional technical teams, network engineers, and system architects to ensure availability and security baselines.
• Troubleshooting hardware, OS errors, software dependencies, and network connectivity issues.
• Automating routine tasks using Bash, Python, or Ansible.
• Maintaining baselines, configuration controls, and engineering documentation.

Skills

Bash scripting

Python scripting

Ansible

System administration

Patch management

Documentation

Cross-functional collaboration

Education

Bachelor’s degree in CS/IT/SE

Master’s degree in CS/IT/SE

Tools

RHEL

VMware

Docker

Kubernetes

Job description

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.