Linux Administrator

Description

Avatar Computing is seeking a Linux Administrator to support the Army's Enterprise Application/System Modernization and Migration (EAMM) program. You will support, maintain, and enhance Linux-based systems and services that enable Identity, Credential, and Access Management (ICAM) functions across the enterprise. This role ensures secure, stable, and compliant operations of infrastructure components that underpin authentication, authorization, and identity lifecycle processes.

• Manage, configure, and maintain Linux servers (RHEL/Oracle Linux/Ubuntu)
• Perform patching, vulnerability remediation, system hardening, and lifecycle management
• Monitor system performance, health, and capacity
• Support ICAM tools and services (e.g., IAM directories, federation services, PKI components, privileged access systems)
• Ensure secure configuration and uptime for ICAM-related applications hosted on Linux
• Implement and maintain security baselines (DISA STIGs, CIS Benchmarks, internal policies)
• Manage certificates, key stores, and cryptographic components supporting ICAM services
• Develop scripts (Bash, Python, Ansible) to automate administrative tasks and deployments
• Support CI/CD or Dev Ops workflows used for ICAM platform updates
• Troubleshoot OS-level and application-level issues
• Participate in on-call rotations for high-severity ICAM service events

• US Citizen (No Dual Citizens)
• Active Secret Clearance Required
• Security+ or equivalent certification
• Strong knowledge of Linux administration (system services, networking, storage, SELinux, etc.)
• Experience with identity or security services (LDAP, SSO, federation, certificates, PAM, SSSD)
• Familiarity with logging platforms (Splunk, ELK) and monitoring tools
• Scripting experience (Bash, Python, Ansible)
• Understanding of IAM concepts: authentication, authorization, identity lifecycle, RBAC, MFA
• Knowledge of security hardening and compliance frameworks

Avatar Computing is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.