Senior ISSM | RMF & NIST Compliance | TS/SCI

Radiance Technologies; Huntsville (TN); On-site; USD 110,000 - 160,000; Full time

Job summary

Radiance Technologies is seeking an Information Systems Security Manager (ISSM) to oversee security across programs, maintain RMF packages, and ensure compliance with NIST, DAAG, and JSIG. The role involves day-to-day security posture, vulnerability monitoring, and incident response while supporting SCIF/SAPF environments and remote locations.

The successful candidate will have 7+ years in information systems security, RMF experience, and a DoD 8570.1M compliant certification, with TS/SCI

Qualifications

• Experience implementing security controls of operating systems including AD, GPOs, and SROs.
• Experience with standing up and maintaining networks such as SIPRNet, JWICS.
• Experience with security compliance tools such as Splunk, ELK, Wireshark, Snort, SCAP, Nessus.
• Knowledge of information system environments including MUSA, LAN, WAN and components.
• DoD 8570.1M compliant information system certification (e.g. Security+, CISSP, CISM).

Responsibilities

• Understand and ensure compliance with NIST 800-53 and government policies (DAAG, JSIG, NIST).
• Oversee configuration management to assess impact of modifications.
• Conduct vulnerability assessments and continuous monitoring.
• Perform incident response and business continuity activities.
• Manage authorization platforms (eMASS, Xacta) for package authorizations.
• Prepare and maintain security documentation (SSP, RAR, SCTM, POA&M).
• Track assessment findings and develop mitigation plans.
• Maintain IA posture and ensure security features function.
• Develop security plans aligning with internal/external customers.
• Work in SCIF/SAPF environments and support remote operations.
• Fulfill DAAG and JSIG requirements.

Skills

AD & GPOs

SIPRNet/JWICS networks

RMF & compliance

8570.1M cert

LAN/WAN knowledge

Tools

Splunk

ELK

Wireshark

Snort

SCAP

SCC Tool

STIG Viewer

ACAS

Nessus

Job description

Radiance Technologies is seeking an Information Systems Security Manager (ISSM) to oversee security across programs, maintain RMF packages, and ensure compliance with NIST, DAAG, and JSIG. The role involves day-to-day security posture, vulnerability monitoring, and incident response while supporting SCIF/SAPF environments and remote locations.

The successful candidate will have 7+ years in information systems security, RMF experience, and a DoD 8570.1M compliant certification, with TS/SCI