System Administrator

• Administer, configure, monitor, and troubleshoot Red Hat/CentOS Linux systems in secure, mission-focused environments
• Deploy and manage AWS GovCloud/C2S cloud infrastructure using automation tools and virtualization technologies
• Operate as an AWS Cloud Systems Administrator supporting and maintaining JBoss-based services
• Implement and sustain system hardening measures using DoD security standards, STIGs, and organizational cybersecurity policies
• Perform vulnerability identification and remediation to support RMF compliance controls, POA&M tracking, and audit readiness
• Monitor system performance, availability, and operational health
• Troubleshoot and resolve software, operating system, and access-related issues while following security procedures
• Maintain system configurations, change records, and technical documentation for configuration management and compliance inspections
• Coordinate with cybersecurity, network, and program teams on accreditation activities, incident response, and secure operations in classified or controlled environments
• Travel locally from L3Harris to Patrick SFB (AFTAC) as needed

Lead Systems Administrator

• Administer, configure, monitor, and troubleshoot Red Hat/CentOS Linux systems in secure, mission-focused environments
• Deploy and manage AWS GovCloud/C2S cloud infrastructure using automation tools and virtualization technologies
• Operate as an AWS Cloud Systems Administrator supporting and maintaining JBoss-based services
• Implement and sustain system hardening using DoD security standards, STIGs, and organizational cybersecurity policies
• Perform vulnerability identification and remediation to support RMF controls, POA&M tracking, and audit readiness
• Monitor system performance, availability, and operational health to ensure mission-system reliability and continuity
• Troubleshoot and resolve software, operating-system, and access-related issues according to security procedures
• Maintain system configurations, change records, and technical documentation for configuration management and compliance inspections
• Coordinate with cybersecurity, network, and program teams on accreditation activities, incident response, and secure system operations
• Travel locally from L3Harris to Patrick SFB as needed

Systems Administrator

• Maintain and manage Finance-related SAP R/3 master data, ensuring data accuracy and compliance
• Coordinate and process Finance SAP access requests and support user access reviews
• Support SOX compliance activities for Finance systems, including User Acceptance Testing (UAT) documentation and evidence, system access administration, periodic access reviews, and IT General Controls (ITGC) execution and documentation
• Assist with Finance technology projects, including requirements gathering, testing, implementation, and project coordination
• Perform ad hoc financial, operational, and system analyses to support management decision-making
• Support regulatory and rate case activities, including research, data gathering, and responses to interrogatories

Financial Systems Administrator

• Serve as a technical lead within the Power Generation Division Engineering & Operations Support Services organization
• Administer and maintain OT infrastructure supporting generation facilities
• Install, configure, monitor, patch, back up, recover, and manage the lifecycle of HMIs, SCADA servers, application servers, historians, engineering workstations, controllers, PLCs, data concentrators, RTUs, protective relays, DFRs, metering systems, network switches, and communications equipment
• Support implementation and sustainment of RBAC, OT monitoring, secure remote access, vulnerability management, asset inventory automation, and backup and recovery programs
• Support cybersecurity assessments, audits, remediation activities, and corrective action plans affecting OT systems
• Support strategic OT cybersecurity and resiliency projects across the fleet
• Coordinate with project managers, engineers, cybersecurity personnel, vendors, and plant personnel during design, testing, deployment, and support
• Assist with technical standards, reference architectures, and cybersecurity design requirements
• Support IT/OT separation, OT resiliency, site security hardening, and centralized OT infrastructure initiatives
• Evaluate, implement, and modify operating system software parameters and product solutions
• Identify integration and interface requirements
• Serve as a technical escalation point
• Troubleshoot hardware, system, and application issues

Senior Operational Technology Systems Administrator – Cybersecurity, Resiliency

• Provide end-user desktop support for systems and applications locally and across the classified WAN
• Perform routine system updates, patching, and hardening to reduce vulnerabilities and maintain compliance with applicable standards
• Partner with program engineering teams to understand requirements and deliver IT solutions aligned with program needs and schedules
• Communicate technical issues, risks, and recommendations to management and non-technical stakeholders
• Support classified Windows desktop systems and essential applications
• Combine system administration, network management, project coordination, and desktop/software support to ensure reliable and secure day-to-day operations

Senior Associate, Systems Administrator – TS/SCI with FS Poly

• Manage and maintain RHEL, CentOS, and Ubuntu Linux servers across enterprise environments
• Ensure system integrity, performance, availability, and security
• Install, configure, and troubleshoot server software and services
• Monitor system performance and implement tuning measures
• Implement and maintain firewalls, access management, patching, and system hardening for federal compliance
• Develop automation solutions using Bash, Python, and Ansible
• Oversee backup and disaster recovery processes
• Configure and troubleshoot DNS, DHCP, NFS, and VPN services
• Respond to and resolve system incidents; conduct root cause analyses and implement preventative measures
• Maintain technical documentation
• Contribute to and lead infrastructure upgrades, migrations, and new system implementations
• Support mission-critical infrastructure for a federal client and Veterans nationwide

System Administrator jobs in Florida

Lead Systems Administrator

Systems Administrator

Financial Systems Administrator

Financial Systems Administrator

Senior Operational Technology Systems Administrator – Cybersecurity, Resiliency

Senior Associate, Systems Administrator – TS/SCI with FS Poly

Linux System Administrator