Linux Systems Administrator

ManTech - Coffeyville, KS

Full-time - Mid Level

Coffeyville, KS

Professional, Scientific, and Technical Services

About the position

The Linux Systems Administrator at ManTech is a remote technical role focused on supporting and managing DoD systems within an Agile Scrum team. This position involves a variety of responsibilities including system administration, security compliance, network management, and automation, all aimed at ensuring the optimal performance and security of Linux-based environments.

Responsibilities

• Provide support using programming languages such as Java, Python, JavaScript, and HTML 5.
• Work with operating systems including Windows and 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.
• Perform system setup, configuration, and routine maintenance tasks on various Linux distributions, including user account management, software installation, and system updates.
• Implement and maintain security best practices, including firewalls, access controls, and vulnerability assessments.
• Configure and troubleshoot network services, TCP/IP, DNS, DHCP, and routing.
• Develop and maintain shell scripts and automation tools to streamline system management and administrative tasks.
• Set up and manage monitoring tools and respond to alerts promptly.
• Establish and maintain backup and disaster recovery solutions.
• Manage software packages and dependencies using package management systems.
• Fine-tune system performance through kernel optimization, resource monitoring, and load balancing.
• Maintain accurate and up-to-date documentation of system configurations, processes, and procedures.
• Collaborate with cross-functional teams and IT professionals to resolve technical issues.

Requirements

• 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, and Microsoft Office applications.
• Experience building and configuring physical and virtual servers.
• Demonstrated experience developing technical solutions for IT issues.

Nice-to-haves

• 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 a positive track record in the DHA (Defense Health Agency) customer space.