Linux Systems Engineer

Linux Systems Engineer

GDIT is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day. We think. We act. We deliver. There is no challenge we can't turn into opportunity. Our work depends on a TS/SCI level cleared Linux Systems Engineer joining our team to support our Intelligence customer in St. Louis, MO or Springfield, VA. This position supports the Geospatial Services & Solutions business area to provide high-quality, cost-effective solutions to the customer. As part of the GSS Team the Linux Systems Engineer expertise is needed to support a sophisticated enterprise environment.

SPECIFIC DUTIES AND RESPONSIBILITIES:

• Design, implement, and maintain enterprise Linux-based infrastructure in both on-prem and virtualized 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 and optimize virtualized environments, including platforms such as Nutanix
• Support the development of dashboards using observability solutions using tools such as Grafana and Zabbix
• Troubleshoot complex system, performance, and integration issues across distributed environments
• Collaborate with cross-functional teams to improve system reliability, scalability, and operational efficiency
• Document system architecture, processes, and automation workflows
• Contribute to continuous improvement initiatives, including automation maturity 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: 5+ years of experience administering and engineering Linux systems in enterprise environments Required Skills:

• Solid understanding of system administration fundamentals (networking, storage, security, 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)
• Experience troubleshooting complex infrastructure and performance issues
• Experience implementing security best practices in Linux environments
• Experience with virtualization platforms such as Nutanix
• 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 poly

• 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

• Strong communication and documentation skills

Location: St Louis MO, or Springfield VA US citizenship required