Systems Administrator - Linux (Remote)

Secure our Nation, Ignite your Future

Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement. 

Currently, ManTech is seeking a motivated, career and customer-oriented Systems Administrator - Linux to join our team! 

This is a remote, technical position with an Agile Scrum team that will require a broad scope of skills and knowledge of DoD systems.

Responsibilities include but are not limited to:

• Provide support using the following languages: Java, Python, Javascript, HTML 5.

• Work in the following operating systems: Windows, RedHat Linux.

• Utilize debugging tools and methodologies for debugging UI, back end and components.

• Install and configure on-prem server operating systems and AWS-based environments.

• System Administration: Perform system setup, configuration, and routine maintenance tasks on various Linux distributions, including user account management, software installation, and system updates.

• Security and Compliance: Implement and maintain security best practices, including firewalls, access controls, and vulnerability assessments. Ensure compliance with industry standards and regulations.

• Network Management: Configure and troubleshoot network services, TCP/IP, DNS, DHCP, and routing. Collaborate with network engineers to optimize network performance.

• Automation and Scripting: Develop and maintain shell scripts and automation tools to streamline system management and administrative tasks.

• Monitoring and Troubleshooting: Set up and manage monitoring tools and respond to alerts promptly. Troubleshoot system issues and perform root cause analysis.

• Backup and Recovery: Establish and maintain backup and disaster recovery solutions. Test and refine recovery procedures regularly.

• Software Management: Manage software packages and dependencies using package management systems. Ensure software is up to date and secure.

• Performance Optimization: Fine-tune system performance through kernel optimization, resource monitoring, and load balancing.

• Documentation: Maintain accurate and up-to-date documentation of system configurations, processes, and procedures.

• Collaboration: Collaborate with cross-functional teams and IT professionals to resolve technical issues and contribute to IT projects and initiatives.
   

Basic Qualifications:

• A minimum of 7 years of relevant work experience.

• Proven experience as a Linux Systems Administrator, with proficiency in managing various Linux distributions.

• Strong scripting skills (Bash, Python, or similar) for automation and task simplification.

• In-depth knowledge of Linux security best practices and experience in hardening systems.

• Familiarity with network protocols, routing, and firewall configuration.

• Experience with monitoring tools (e.g., Nagios, Zabbix) and log management solutions.

• Strong knowledge of database architecture, design, and administration.

• Demonstrated experience resolving technical issues with:

  • Cloud-based environments

  • Windows, RedHat Linux

  • Microsoft Office applications

• Demonstrated excellence in written and verbal communication and outstanding customer service skills working with senior and executive level staff.

• Experience building and configuring physical and virtual servers.

• Demonstrated experience developing technical solutions for IT issues and / or developing plans to integrate new technologies and IT requirements.

• Demonstrates the ability to think critically and creatively to develop innovative solutions to software problems.

Preferred Qualifications:

• Bachelor's degree in Computer Science, Information Technology, or related field.

• Experience supporting DoD health care systems.

• Experience working with Microsoft SCCM, Azure, AWS and VMware vSphere.

• Experience in writing automation test cases to validate system requirements.

• Working knowledge of military health systems, along with the positive track record in the DHA (Defense Health Agency) customer space.

Clearance Requirements: 

• US Citizenship.

• Must have an active Public Trust clearance.

• Hired candidate will be processed for a Secret clearance.

Physical Requirements: 

• Sedentary work that pri