Sr. Systems Administrator

Title: Sr. System Administrator

Clearance: Secret with TS eligibility

Location: Pensacola, FL (Onsite)

Hours: M-F, 7:00AM-3:30PM

Foxhole Technology provides robust cybersecurity and IT support capabilities for federal civilian and defense agencies. A recognized leader in navigating technology and security challenges, Foxhole delivers mission-focused innovations to answer evolving and complex needs. Our talented employee-owners provide agile, scalable services and solutions that solve operational gaps, operate critical systems, and protect and secure the enterprise - across the organization and around the world.

Foxhole Technology is seeking a talented Sr. System Administrator in support of a newly awarded contract. This role supports the secure and efficient flow of CyberNetOps data, contributing directly to mission readiness by developing, maintaining, and enhancing data ingestion and distribution processes using technologies such as Confluent Kafka, Apache NiFi, and RHEL. As a Sr. System Administrator, you will help build and maintain a resilient, scalable, and secure data brokering infrastructure. You will work with a team of engineers and analysts to support data ingestion pipelines, troubleshoot system issues, and contribute to process automation and documentation. Your work will help ensure timely and accurate delivery of cyber data across internal and external mission partners.

Provide administration and maintenance of Linux-based servers (RHEL), ensuring system reliability and uptime.
• Support enterprise-level services such as Windows Server, Active Directory, DNS, DHCP, and Group Policy Objects (GPOs)
• Implement system updates, patches, and antivirus measures in accordance with DoD STIGs and IAVM policies
• Manage user accounts and access permissions following established security standards
• Contribute to the deployment and oversight of RMF-compliant security controls
• Assist with documentation and sustainment of ATO/IATT packages and eMASS entries
• Perform system monitoring, log analysis, and root cause troubleshooting of hardware/software issues
• Maintain detailed records of configurations, system changes, and procedures
• Support regular data backup and restoration processes
• Operate and maintain cybersecurity tools such as HBSS, ACAS, and SIEM platforms
• Collaborate with IT teams across networking, cybersecurity, and support desks to ensure secure, compliant system functionality

• Active DoD Secret clearance with eligibility for Top Secret

• Minimum of 8+ years of experience as a System Administrator

• Current DoD 8140 / 8570 IAT Level II-approved certification (e.g., CompTIA Security+ CE)

• Experience administering RHEL Linux-based servers, ensuring system reliability and uptime

• Experience supporting Windows Server environments

• Experience supporting enterprise services including Active Directory, DNS, DHCP, and Group Policy Objects (GPOs)

• Experience implementing system updates, patches, antivirus, and vulnerability remediation in accordance with DoD STIGs and IAVM policies

• Experience managing user accounts and access permissions in compliance with security standards

• Experience supporting RMF-compliant security controls, including ATO/IATT documentation and eMASS entries

• Experience performing system monitoring, log analysis, and root cause troubleshooting

• Experience operating cybersecurity tools such as HBSS, ACAS, and SIEM platforms

• Ability to maintain accurate system documentation and configuration records

• Ability to support data backup and restoration processes

• Ability to collaborate across IT, cybersecurity, and service desk teams

• Strong customer interaction, diagnostic, and problem-solving skills

• Experience with one or more of the following tools: Nutanix, Citrix and SolarWinds.

Requirements of position: Think analytically, effective verbal and written communication skills, make decisions, observe/remember details, interpret data, concentrate on tasks, adjust to change, handle stress/emotions. Regular attendance, maintain work schedule, attend meetings, meet deadlines, keyboard/type, handle confidential information, use math/calculations, stay organized, operate office equipment, may direct others. May be exposed to dust/dirt, humidity, and noise

Foxhole Technology is an Equal Opportunity Employer and makes hiring decisions without regard to race, color, religion, sex (including pregnancy, childbirth and sexual orientation), national origin, age, disability, genetic information, military/veteran status, or any other protected class.