Senior Information Security Officer - RMF & ATO Expert

Base-2 Solutions, LLC; Norfolk (VA); On-site; USD 120,000 - 160,000; Full time

Job summary

Base-2 Solutions, LLC seeks an Information System Security Officer to ensure security compliance and achieve or maintain Authority to Operate (ATO) with RMF processes. The role involves loading and updating Xacta artifacts, STIG and ACAS workflows, and supporting ST&E activities.

The candidate will drive risk assessments, mitigation strategies, and continuous monitoring, collaborating with ISSMs, SCAs, and cross-functional teams to strengthen security postures.

Qualifications

• Bachelor's degree in computer science, software engineering, or a field applicable to the position required.
• 9 or more years of relevant experience required with a Bachelor’s degree.
• Demonstrated experience in developing, implementing, and enforcing security policies, standards, and procedures to ensure regulatory compliance.
• Proven track record in conducting risk assessments and identifying vulnerabilities in systems, networks, and applications.
• Experience in developing and overseeing implementation of mitigation strategies to reduce security risks.
• Strong background in monitoring systems and networks for security breaches and suspicious activity.
• Successful history of responding to security incidents, investigating root causes, and implementing corrective actions.

Responsibilities

• Work with application leads, system administrators, database administrators, developers, and testers to ensure assigned systems are security compliant and achieve or maintain ATO.
• Follow the RMF process for full test, partial test, continuous monitoring (CONMON), and no test scenarios.
• Update Xacta documentation including SSPs, SCTM, STPs, and POAMs.
• Load artifacts such as STIG checklists and ACAS scans.
• Help implement STIG checklists and mitigate scan findings.
• Answer questions to ensure systems are developed with security compliance built in.
• Support security assessment events and respond to all questions from the PAT team, ISSMs, and SCAs.

Skills

RMF process

Security compliance

Vulnerability management

Risk assessment

Incident response

Xacta documentation

STIG/ACAS

Education

Bachelor's degree in CS/Engineering or related field

Tools

Xacta

ACAS

STIGs

Job description

Base-2 Solutions, LLC seeks an Information System Security Officer to ensure security compliance and achieve or maintain Authority to Operate (ATO) with RMF processes. The role involves loading and updating Xacta artifacts, STIG and ACAS workflows, and supporting ST&E activities.

The candidate will drive risk assessments, mitigation strategies, and continuous monitoring, collaborating with ISSMs, SCAs, and cross-functional teams to strengthen security postures.