Job Requirements
Oak Ridge, TN
Clearance Unspecified Polygraph not specified
Career Level not specified
$100,000 - $135,000
Job Description
Overview
We are seeking a Systems Security Engineer / Network Security Engineer to support mission‑critical systems. This role focuses on Risk Management Framework (RMF) implementation, Authorization to Operate (ATO) support, and continuous monitoring across network, system, and application environments.
The ideal candidate has hands‑on experience with NIST 800‑53 security controls, NIST 800‑37, and federal system authorization processes, and is comfortable working with both technical teams and senior stakeholders in a regulated, classified environment.
Key Responsibilities
Implement and assess NIST 800‑53 security controls across network, system, and application layers
Support RMF (NIST 800‑37) activities for new and existing systems
Develop, maintain, and update security documentation, including:
System Security Plans (SSPs)
Plans of Action and Milestones (POA&Ms)
Support Authorization to Operate (ATO) packages and AO decision processes
Perform risk and vulnerability assessments and identify security gaps and mitigation strategies
Track and manage POA&M remediation activities in coordination with system owners
Monitor system security posture and support continuous monitoring and vulnerability management
Assess security impacts of system changes and support configuration and change management processes
Prepare systems for security assessments, audits, and compliance reviews
Implement and enhance cybersecurity and infrastructure controls, including detection, event correlation, and vulnerability capabilities
Leverage security telemetry, event data, and analytics to identify threats and indicators of compromise
Communicate complex security concepts to technical teams, leadership, and senior management
Serve as a security liaison between engineering teams, cybersecurity operations, and governance bodies
Required Qualifications
Active Top Secret (TS) clearance
Experience with NIST 800‑53 security control implementation and assessment
Experience with NIST 800‑37 Risk Management Framework (RMF)
Experience supporting ATO and system authorization activities
Experience developing and managing SSPs and POA&Ms
Experience with continuous monitoring, vulnerability management, and security compliance
Strong collaboration and communication skills in a classified environment
Education & Experience:
HS diploma or GED with 8+ years of Information Assurance / Cybersecurity experience
OR
Bachelor’s degree with 5+ years of Information Assurance / Cybersecurity experience
We are seeking a Systems Security Engineer / Network Security Engineer to support mission‑critical systems. This role focuses on Risk Management Framework (RMF) implementation, Authorization to Operate (ATO) support, and continuous monitoring across network, system, and application environments.
The ideal candidate has hands‑on experience with NIST 800‑53 security controls, NIST 800‑37, and federal system authorization processes, and is comfortable working with both technical teams and senior stakeholders in a regulated, classified environment.
Key Responsibilities
Implement and assess NIST 800‑53 security controls across network, system, and application layers
Support RMF (NIST 800‑37) activities for new and existing systems
Develop, maintain, and update security documentation, including:
System Security Plans (SSPs)
Plans of Action and Milestones (POA&Ms)
Support Authorization to Operate (ATO) packages and AO decision processes
Perform risk and vulnerability assessments and identify security gaps and mitigation strategies
Track and manage POA&M remediation activities in coordination with system owners
Monitor system security posture and support continuous monitoring and vulnerability management
Assess security impacts of system changes and support configuration and change management processes
Prepare systems for security assessments, audits, and compliance reviews
Implement and enhance cybersecurity and infrastructure controls, including detection, event correlation, and vulnerability capabilities
Leverage security telemetry, event data, and analytics to identify threats and indicators of compromise
Communicate complex security concepts to technical teams, leadership, and senior management
Serve as a security liaison between engineering teams, cybersecurity operations, and governance bodies
Required Qualifications
Active Top Secret (TS) clearance
Experience with NIST 800‑53 security control implementation and assessment
Experience with NIST 800‑37 Risk Management Framework (RMF)
Experience supporting ATO and system authorization activities
Experience developing and managing SSPs and POA&Ms
Experience with continuous monitoring, vulnerability management, and security compliance
Strong collaboration and communication skills in a classified environment
Education & Experience:
HS diploma or GED with 8+ years of Information Assurance / Cybersecurity experience
OR
Bachelor’s degree with 5+ years of Information Assurance / Cybersecurity experience
group id: kforcecx
We offer roles across all three clearance levels: Confidential, Secret and Top Secret. With a Top Secret Facilities clearance, a proven subcontractor track record and a deep understanding of agencies across Defense, Intelligence, Homeland, Justice and Federal Civilian Sectors, Kforce brings more than 20 years of experience to supporting critical missions at federal, state and local levels.
