USAF - Jr. System Administrator

cFocus Software Incorporated; Ellsworth (ME); On-site; USD 110,000 - 160,000; Full time

Job summary

cFocus Software seeks a Sr. System Administrator to join our program supporting the United States Air Force. This onsite role is based at Ellsworth AFB and requires TS/SCI SSBI clearance.

You will perform senior Windows and Linux administration, configure Active Directory, manage authentication dependencies, and ensure high availability for mission-critical systems. Collaborate with infrastructure, database, cybersecurity, and program-management teams; provide Level III support, conduct threat

Qualifications

• Active TS/SCI SSBI clearance.
• B.S. Computer Science, Information Technology, or a related field.
• 2+ years of Systems Administrator experience.
• Advanced experience administering Windows and Linux in high-availability environments.
• Active Directory engineering, service-account configuration, identity and access dependencies.
• Experience with enterprise virtualization and RMF/DoD cybersecurity control.
• Configuration management, patching, vulnerability remediation, and deployment validation.
• DoD/Air Force cybersecurity compliance knowledge.

Responsibilities

• Perform senior-level Windows and Linux systems administration for mission environments.
• Engineer, configure, and troubleshoot Active Directory and authentication dependencies.
• Lead capacity planning, performance analysis, and Nutanix virtualization efforts.
• Monitor system health, diagnose performance issues, and implement corrective actions.
• Maintain baselines, configuration data, and administrative documentation.
• Engineer, test, validate, and deploy enterprise patches and security directives.
• Support disaster recovery, COOP, and continuity-of-operations activities.

Skills

Active TS/SCI SSBI clearance

Systems Administrator experience

Windows & Linux administration

Active Directory engineering

Identity and access management

Security compliance RMF/DoD controls

Vulnerability remediation & patching

Cross-functional collaboration

Education

B.S. Computer Science or related field

Tools

Nutanix

Job description

cFocus Software seeks a Sr. System Administrator to join our program supporting the United States Air Force. This position is onsite with the onsite location being in Ellsworth, South Dakota. This position requires a TS/SCI SSBI clearance.
Qualifications:

• Active TS/SCI SSBI clearance
• B.S. Computer Science, Information Technology, or a related field
• 2+ years of Systems Administrator experience
• Advanced experience administering and engineering enterprise Windows and Linux systems in a high-availability, mission-critical environment.
• Demonstrated experience with Active Directory engineering, service-account configuration, identity and access dependencies, and privileged administrative operations.
• Experience with enterprise virtualization, infrastructure capacity planning, performance analysis, system monitoring, and root cause engineering; Nutanix experience is strongly aligned to the PWS.
• Hands-on experience with configuration management, system baselines, change control, patch engineering, vulnerability remediation, and deployment validation.
• Experience validating patches, updates, system modifications, and enhancements in controlled development/test environments before production release.
• Experience with backup, recovery, resilience, COOP, disaster recovery, and emergency corrective maintenance for mission-essential systems.
• Ability to provide senior/Level III support involving advanced diagnostics, log analysis, debugging, fault isolation, and sustainable corrective action.
• Working knowledge of RMF, Assessment and Authorization, security control implementation, continuous monitoring, and DoD/Air Force cybersecurity compliance.
• Ability to collaborate across infrastructure, database, middleware, application, cybersecurity, and program-management teams and communicate technical findings to Government stakeholders.
• Ability to work primarily at Ellsworth AFB during the PWS duty-hour window and support rare work at Wright-Patterson AFB or a contractor facility when required.
• Active DoD 8570 IAT Level II & DoD 8140 System Administrator 451-Intermediate certifications required
  

Duties:

• Perform senior-level Windows and Linux systems administration for FMWF infrastructure and associated mission environments.
• Engineer, configure, administer, and troubleshoot Active Directory, service accounts, authentication dependencies, permissions, and related enterprise services.
• Perform infrastructure performance analysis, capacity planning, root cause engineering, and enterprise virtualization engineering in Nutanix environments.
• Monitor system health and availability; analyze performance degradation and implement sustainable corrective engineering actions.
• Manage configuration baselines and technical baseline control for infrastructure components, development assets, system settings, and administrative documentation.
• Engineer, test, validate, and deploy enterprise patches, updates, and security directives, including IAVAs, TCNOs, and NOTAMs, within prescribed timelines.
• Conduct vulnerability remediation and validate that corrective actions do not compromise availability, functionality, security controls, or configuration integrity.
• Analyze proposed system modifications, implement approved technical changes, and validate post-deployment performance and production readiness.
• Maintain controlled engineering, development, and test environments, including configuration management, patch validation, and test data support.
• Provide data-protection, backup, restoration, recovery, and resilience support; help ensure secure backup and appropriate off-site storage of development data.
• Support continuity-of-operations (COOP), disaster recovery, routine sustainment, emergency maintenance, and recovery activities requested by the PMO.
• Provide Level III technical escalation support using advanced diagnostics, log analysis, debugging, fault isolation, and root cause analysis.
• Coordinate technical activities with database administrators, DB2 engineers, WebSphere/middleware personnel, cybersecurity staff, developers, CyberArk administrators, and Government stakeholders.
• Support cross-stack integration among infrastructure, DB2 databases, WebSphere middleware, Active Directory, virtualization, and security tooling.
• Implement and sustain applicable security controls and provide technical evidence supporting RMF, Assessment and Authorization, continuous monitoring, and compliance activities.
• Maintain accurate, version-controlled system documentation, engineering records, configuration data, test results, incident records, procedures, and status reports.
• Comply with Government change management, technical review, readiness review, quality control, QASP, installation security, and access-control requirements.