Linux Systems Engineer , Sr.

Linux Systems Engineer, Sr.

Location: Springfield, VA or St. Louis, MO
Clearance: Active TS/SCI
($145,000 - 200,000)

Marathon TS is seeking an Senior Linux Systems Engineer to support one of our Intelligence customers in Springfield, VA or St. Louis, MO. This position offers the opportunity to work in a sophisticated enterprise environment while supporting mission-critical systems and contributing to the delivery of high-quality, cost-effective technical solutions.

The ideal candidate will have strong Linux systems engineering expertise and experience supporting complex enterprise environments. The Linux Systems Engineer will work closely with technical teams and stakeholders to maintain, troubleshoot, and improve enterprise systems while contributing to ongoing development and modernization efforts.

The Linux Systems Engineer will be an active participant in SAFe and Scrum development teams and meetings, collaborating with cross-functional teams to support the customer's enterprise environment and ensure technical requirements are successfully delivered.
SPECIFIC DUTIES AND RESPONSIBILITIES

• Design, implement, and maintain enterprise Linux-based infrastructure in both on-premises and virtualized environments.
• Administer, maintain, and optimize Nutanix hyperconverged infrastructure (HCI) , including AHV , Prism Central , and Prism Element , to support enterprise Linux workloads.
• Collaborate with infrastructure teams to provision, configure, and manage virtual machines, storage, networking, and cluster resources within Nutanix environments.
• Develop and maintain automation solutions using Ansible and scripting languages (e.g., Bash, Python).
• Standardize system configuration, patching, and deployment processes through Infrastructure-as-Code practices.
• Administer and support Red Hat ecosystem tools, including Satellite and Capsule.
• Integrate and manage authentication and authorization mechanisms (e.g., OAuth, SSO, identity providers).
• Support the development of dashboards and observability solutions using tools such as Grafana and Zabbix.
• Monitor, troubleshoot, and optimize Linux systems and Nutanix infrastructure for performance, availability, and capacity.
• Troubleshoot complex system, virtualization, storage, networking, and integration issues across distributed environments.
• Collaborate with cross-functional teams to improve system reliability, scalability, security, and operational efficiency.
• Document system architecture, processes, automation workflows, and infrastructure standards.
• Contribute to continuous improvement initiatives, including automation maturity, platform modernization, and operational best practices.

EDUCATION
Bachelor's Degree in Computer Science, Engineering, or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.

QUALIFICATIONS
8+ years of experience administering and engineering Linux systems in enterprise environments, including experience supporting enterprise virtualization platforms such as Nutanix.
Required Skills

• Solid understanding of Linux system administration fundamentals (networking, storage, security, and OS internals).
• Strong expertise in configuration management and automation using Ansible.
• Proficiency in scripting (Bash, Python, or similar) for automation and tooling.
• Experience managing Red Hat-based environments (RHEL, Satellite, Capsule, or similar tools).
• Hands-on experience administering Nutanix HCI environments, including AHV, Prism Central, Prism Element, virtual machine lifecycle management, storage, networking, and cluster operations.
• Experience deploying, managing, and troubleshooting Linux virtual machines in Nutanix environments.
• Understanding of virtualization, hypervisor technologies, storage, and networking concepts.
• Experience troubleshooting complex infrastructure, virtualization, and performance issues.
• Experience implementing security best practices in Linux environments.
• Experience with monitoring and alerting systems.
• Strong problem-solving skills and ability to work independently.
• Active TS/SCI clearance required and eligibility to obtain a CI Polygraph.

Desired Skills

• Experience with Nutanix advanced capabilities such as Files, Objects, Flow, Calm, or Disaster Recovery.
• Experience with Nutanix automation using APIs, PowerShell, or Infrastructure-as-Code tools.
• Experience with load balancing devices such as HAProxy or F5.
• Familiarity with authentication and authorization concepts (e.g., OAuth, LDAP, SSO).
• Experience with observability and dashboarding tools such as Grafana and Zabbix.
• Familiarity with containerization technologies (Docker, Kubernetes).
• Knowledge of CI/CD pipelines and integration with infrastructure automation.
• Experience with VMware-to-Nutanix migration or hybrid virtualization environments.
• Strong communication and documentation skills.

Location: Customer Site
US Citizenship Required

Marathon TS is committed to the development of a creative, diverse and inclusive work environment. In order to provide equal employment and advancement opportunities to all individuals, employment decisions at Marathon TS will be based on merit, qualifications, and abilities. Marathon TS does not discriminate against any person because of race, color, creed, religion, sex, national origin, disability, age or any other characteristic protected by law (referred to as "protected status ").

#CJJOBS