Senior ISSO: RMF, ATO & Security Compliance Lead

RPMGlobal; Reston (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

Base-2 Solutions is seeking an Information System Security Officer to ensure systems are security compliant and achieve or maintain Authority to Operate (ATO). The role follows RMF for full/partial tests, CONMON, and no-test scenarios, updating SSPs, SCTMs, STPs, and POAMs, and loading STIG and ACAS artifacts.

You will work with application leads, admins, developers, and testers to implement security controls, respond to PAT/ISSM/ SCA inquiries, and support security assessments.

Qualifications

• Bachelor's degree in computer science, software engineering, or a field applicable to the position.
• 9+ years of relevant experience with a Bachelor's degree.
• Demonstrated experience in developing, implementing, and enforcing security policies, standards, and procedures.
• Proven track record in conducting risk assessments and identifying vulnerabilities.
• Experience in developing and overseeing mitigation strategies to reduce security risks.
• Strong background in monitoring systems and networks for security breaches and suspicious activity.

Responsibilities

• Work with application leads, system admins, DBAs, developers, and testers to ensure systems are security compliant and achieve or maintain ATO.
• Follow the RMF process for full test, partial test, CONMON, and no test.
• 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 PAT team, ISSMs, and SCAs.

Skills

Risk assessment

Security policy

Regulatory compliance

Vulnerability management

Incident response

Monitoring

Education

Bachelor's degree

HS 13 years experience

Associates 11 years

Master's 7 years

PhD 5 years

Tools

Xacta

ACAS

STIG

Job description

Base-2 Solutions is seeking an Information System Security Officer to ensure systems are security compliant and achieve or maintain Authority to Operate (ATO). The role follows RMF for full/partial tests, CONMON, and no-test scenarios, updating SSPs, SCTMs, STPs, and POAMs, and loading STIG and ACAS artifacts.

You will work with application leads, admins, developers, and testers to implement security controls, respond to PAT/ISSM/ SCA inquiries, and support security assessments.