The Role
Provide senior-level Windows and Linux systems administration for Air Force infrastructure: engineer and troubleshoot Active Directory, virtualization (Nutanix), backups, patching, vulnerability remediation, and disaster recovery. Perform capacity planning, performance analysis, configuration management, RMF compliance support, and Level III escalation. Coordinate across infrastructure, database, middleware, cybersecurity, and program teams and maintain controlled test/dev environments, documentation, and change management for mission-essential systems.
Summary Generated by Built In
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:
Duties:
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.
Skills Required
- Active TS/SCI SSBI clearance
- B.S. in Computer Science, Information Technology, or related field
- 2+ years Systems Administrator experience
- Advanced experience administering and engineering enterprise Windows and Linux systems
- 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 strongly aligned)
- Hands-on experience with configuration management, system baselines, change control, patch engineering, vulnerability remediation, and deployment validation
- Experience validating patches, updates, and system modifications 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 with advanced diagnostics, log analysis, debugging, fault isolation, and 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 and occasionally at Wright-Patterson AFB or a contractor facility
- Active DoD 8570 IAT Level II and DoD 8140 System Administrator 451-Intermediate certifications
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The Company
What We Do
Established in 2006, cFocus Software automates FedRAMP compliance and develops government chatbots for the Azure Government Cloud, Office 365, and SharePoint. cFocus Software is the exclusive vendor of ATO (Authority To Operate) as a Service™, which automates FedRAMP compliance for the Azure Government Cloud and Office 365. Contact Us for a demo of ATO as a Service™ or a FREE government chatbot proof of concept project today!









