Senior ISSO - RMF/ATO Security Compliance

Base-2 Solutions, LLC; Washington (District of Columbia); On-site; USD 150,000 - 190,000; Full time

Job summary

Base-2 Solutions is seeking an Information System Security Officer to work with application leads, system administrators, database administrators, developers and testers to ensure security compliance and achieve or maintain Authority to Operate (ATO).

The role follows the RMF process for full test, partial test, continuous monitoring (CONMON), and no-test scenarios and updates Xacta documentation including SSPs, SCTM, STPs, and POAMs.

Qualifications

• Bachelor’s degree in computer science or related field required.
• 9+ years of relevant experience with a Bachelor’s degree.
• Experience developing/enforcing security policies, standards, and procedures.
• Experience with risk assessments and mitigation of vulnerabilities.

Responsibilities

• Work with application leads and admins to ensure security compliance and ATO.
• Follow RMF for full, partial, CONMON and no-test scenarios.
• Update Xacta documentation including SSPs, SCTMs, STPs, POAMs.
• Load STIG checklists and ACAS scans; mitigate findings.
• Support security assessment events and respond to ST&E questions.
• Coordinate with ISSMs and SCAs to address security concerns.
• Provide ongoing security monitoring and incident response support.

Skills

RMF process

Security policy development

Risk assessments

Mitigation strategies

Xacta experience

STIG/ACAS familiarity

Education

Bachelor’s degree in computer science or related field

Job description

Base-2 Solutions is seeking an Information System Security Officer to work with application leads, system administrators, database administrators, developers and testers to ensure security compliance and achieve or maintain Authority to Operate (ATO).

The role follows the RMF process for full test, partial test, continuous monitoring (CONMON), and no-test scenarios and updates Xacta documentation including SSPs, SCTM, STPs, and POAMs.