Information Systems Security Officer (ISSO), Senior

AnaVation•Washington, DC

1d•$123,206 - $255,319•Remote

About The Position

AnaVation is seeking a Senior-level ISSO to support a newly-awarded contract. The selected candidate must be able to excel as the sole ISSO to prepare a full accreditation package to quickly obtain ATT/ATO for a new digital evidence platform in support of our Federal Government client. This is a full-time position that can be performed remotely with occasional travel to Washington DC as needed.

Requirements

Bachelors Degree in a relevant field such as Cybersecurity or Information Assurance
10+ years of relevant, hands-on experience in an ISSO or security compliance role
Public Trust Clearance
US Citizenship is required
Deep knowledge of NIST SP 800-53 Rev 5 controls, enhancements, baselines, and assessment procedures.
Hands-on experience managing RMF packages and maintaining ongoing authorization.
Strong understanding of enterprise IT systems, networks, operating systems, identity platforms, and cloud environments (Azure, AWS, GCP).
Experience producing and maintaining SSPs, SARs, POA&Ms, Continuous Monitoring Plans, and supporting RMF documentation.
Familiarity with security tools such as SIEMs, vulnerability scanners, endpoint protection, identity governance platforms, and configuration management solutions.
Strong communication skills for interfacing with system owners, engineers, auditors, and executive leadership.
Ability to articulate control requirements and translate them into technical implementations.

Nice To Haves

Professional certifications such as CISSP, CISM, CAP, CCSP, or equivalent.
Prior experience supporting federal agencies, regulated industries, or FedRAMP systems.
Knowledge of NIST 800-30 (Risk Assessment), 800-37 (RMF), 800-53A (Control Assessments), and 800-137 (Continuous Monitoring).
Experience working in hybrid or cloud-native environments with security control inheritance patterns.
Background in DevSecOps or automated compliance tooling.

Responsibilities

Lead all RMF activities for the assigned system, including Categorization, Selection, Implementation, Assessment, Authorization, and Continuous Monitoring.
Oversee the design, implementation, and validation of NIST 800-53 Rev 5 security and privacy controls across technical, operational, and management domains.
Develop, maintain, and update key security artifacts including System Security Plans (SSPs), Security Assessment Reports (SARs), POA&Ms, Incident Response Plans, and Continuous Monitoring strategies.
Coordinate and support security control assessments (SCAs), penetration tests, vulnerability scans, and compliance audits.
Guide engineering teams on implementing and documenting new or updated security controls, ensuring they align with Rev 5 enhancements and control baselines.
Evaluate system changes, architecture updates, and new integrations for security impact and required control modifications.
Lead risk assessments, document findings, and track remediation through POA&M management.
Manage continuous monitoring activities, including log review, vulnerability management, patch tracking, and configuration baseline validation.
Serve as the primary security liaison for system owners, internal stakeholders, external assessors, and authorizing officials (AOs).
Assist in developing security control inheritance strategies from enterprise common controls, and ensure proper documentation and alignment.
Mentor junior ISSOs and analysts in RMF, control interpretation, documentation quality, and security best practices.
Stay current on updates to NIST SP 800-53 Rev 5, 800-37, 800-30, and emerging federal cybersecurity guidance.