Senior Infrastructure Engineer: Mission-Critical FMWF

P3S Corporation; Rapid City (SD); On-site; USD 90,000 - 135,000; Full time

Job summary

P3S Corporation in Rapid City, SD seeks a Senior Systems Administrator to deliver senior engineering and sustainment for the FMWorkflow infrastructure. The role involves Windows and Linux administration, Active Directory, Nutanix virtualization, patch validation, and cross-domain collaboration with database and cybersecurity teams.

The candidate will provide Level III support, performance monitoring, and resilience planning, ensuring secure baselines and rapid recovery in mission-critical

Qualifications

• Advanced Windows Server and Linux enterprise administration.
• Active Directory engineering, service accounts, identity/access administration, and secure configuration baselines.

Responsibilities

• Lead administration, maintenance, patching, upgrades, and sustainment of Windows and Linux systems.
• Lead Active Directory engineering and service-account configuration.
• Perform infrastructure performance analysis, root-cause engineering, and capacity planning.
• Coordinate cross-stack integration with database and cybersecurity teams.
• Provide Level III escalation support and advanced diagnostics.
• Ensure RMF/ STIG compliance and secure baselines across systems.

Skills

Windows Server administration

Linux administration

Active Directory

Nutanix virtualization

PowerShell/Bash/Python

RMF/ DISA STIG

Log analysis/troubleshooting

Tools

Nutanix

DB2

IBM WebSphere

Job description

P3S Corporation in Rapid City, SD seeks a Senior Systems Administrator to deliver senior engineering and sustainment for the FMWorkflow infrastructure. The role involves Windows and Linux administration, Active Directory, Nutanix virtualization, patch validation, and cross-domain collaboration with database and cybersecurity teams.

The candidate will provide Level III support, performance monitoring, and resilience planning, ensuring secure baselines and rapid recovery in mission-critical