Senior Systems Administrator — Classified Network Security

Radiance Technologies, Inc.; Beavercreek (OH); Hybrid; USD 90,000 - 120,000; Full time

Benefits offered by this job

Employee ownership

401K plan

Health insurance

Dental insurance

Life insurance

Vision insurance

Educational reimbursement

Competitive pay

Pleasant environment

Job summary

Radiance Technologies, Inc. is seeking an experienced Systems Administrator to support critical computer systems and network infrastructure at their Beavercreek, Ohio facility.

The role includes design, maintenance, and sustainment of architecture in a classified environment, ensuring 24/7 continuity of operations and IA compliance, with occasional after-hours support. Candidate must work well in a security-focused, customer-driven IT team.

Qualifications

• Seven+ years of System Administrator experience on classified networks with patching, installation, and remediation.
• Experience deploying and managing networks in air-gapped environments and implementing STIGs.
• Strong knowledge of Risk Management Framework and security controls.
• Ability to work in agile teams and support after-hours tasks.

Responsibilities

• Install, configure, and maintain servers, desktops, and network devices per cybersecurity policies.
• Patch management for classified information systems (Windows and Linux).
• Perform hardware/software implementation and general infrastructure support.
• Prepare documentation for system configurations and baselines.
• Provide backup and recovery services and manage storage.
• On-site daily support for operations/maintenance.
• Troubleshoot hardware, software, and network issues.
• Manage user accounts and access in domain or stand-alone environments.

Skills

Excellent communication

Multi-network management

Problem solving

Self-management

Customer focus

Education

Top Secret clearance

DoD 8570/8140 IAT II certification

Tools

WSUS

SCCM

Red Hat Satellite

TACLANE

Cisco routers/switches/firewalls

VMware vSphere

Splunk

ELK

Nessus

NetApp

Job description

Radiance Technologies, Inc. is seeking an experienced Systems Administrator to support critical computer systems and network infrastructure at their Beavercreek, Ohio facility.

The role includes design, maintenance, and sustainment of architecture in a classified environment, ensuring 24/7 continuity of operations and IA compliance, with occasional after-hours support. Candidate must work well in a security-focused, customer-driven IT team.