Senior ISSO (Top Secret/SCI) Flexible Hours

Base-2 Solutions; Maryland; On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

401(k) match

Paid time off

Job summary

Base-2 Solutions is seeking a Senior Level Information Systems Security Officer (ISSO) to lead cybersecurity initiatives and enhance system security across programs in Maryland. The role focuses on RMF, ATO, and NIST 800-53 controls, with hands-on work alongside engineers, admins, and testers to ensure secure, compliant systems.

The ideal candidate holds an active Security+ or equivalent IAT certification, expertise with XACTA and Splunk, and extensive experience in SSPs, POA&Ms, and security

Qualifications

• Active Security+ or equivalent IAT II/III certification.
• Proficiency with RMF, IATT and ATO management.
• Experience with XACTA and Splunk in security programs.
• Experience assessing IT architectures for security compliance (ICD 503).
• Ability to develop SSPs, SAPs, POA&Ms and assessment artifacts.

Responsibilities

• Conduct technical security assessments and contribute to security systems.
• Ensure system security compliance, manage risks, and support certification activities.
• Collaborate with leads, sysadmins, DBAs, developers, and testers to achieve ATO.
• Develop and maintain SSPs, POA&Ms, and security documentation.
• Drive IATT and ATO efforts with stakeholders and AO.
• Apply NIST 800-53 controls in cloud-native DPaaS environments.
• Implement Zero Trust data security across identity, segmentation, and flow control.

Skills

RMF knowledge

Zero Trust

ATO processes

IT security assessments

Security concepts

Education

Bachelor's degree in a related field

Tools

XACTA

Splunk

Job description

Base-2 Solutions is seeking a Senior Level Information Systems Security Officer (ISSO) to lead cybersecurity initiatives and enhance system security across programs in Maryland. The role focuses on RMF, ATO, and NIST 800-53 controls, with hands-on work alongside engineers, admins, and testers to ensure secure, compliant systems.

The ideal candidate holds an active Security+ or equivalent IAT certification, expertise with XACTA and Splunk, and extensive experience in SSPs, POA&Ms, and security