Information Systems Security Officer (ISSO

Information Systems Security Officer (ISSO) -

Quantico, United States | Posted on 08/20/2026

Full Visibility LLC is a federally certified Small Business that delivers innovative technical solutions to address the nation’s most critical and sensitive missions. Founded in 2006, our extensive technical capabilities and expertise support federal and state government agencies with over 100 cleared technical experts specializing in mission solution areas of Digital, AI & Analytics, Cyber, and Engineering.

With offices in the National Capital Region, Quantico, VA, and Huntsville, AL -- we deliver critical technical solutions to various federal government agencies and departments.

Full Visibility is seeking an Information Systems Security Officer (ISSO) to work in Quantico, VA . Candidate must possess an active Top Secret clearance.

The ISSO will work closely with customers to ensure the confidentiality, integrity, and availability of systems, applications, networks, and data through the planning, analysis, development, implementation, maintenance, and enhancement of information systems security programs; infrastructure; application;
Security Assessment and Authorization (SAA), IA policy directives (PD) and guides (PG); and IA Security tools, such as Tenable.io, Nessus Pro, NMap , etc. The candidate will coordinate with other ISSOs to ensure that their requirements for interconnection, policy, and procedures are met and all documentation is provided and updated as necessary. The ideal candidate will advise the customer on the use of methods such as encryption technology, vulnerability analysis, and security management standards to protect systems and applications to meet Federal Information Security Modernization Act (FISMA) requirements.

The successful candidate will work with our federal clients to discover their cyber risks, understand policies, and develop a mitigation plan. You’ll get technical, environmental, and personnel details from our clients and SMEs to assess the entire threat landscape. Then you’ll help your team guide your client through a plan of action with presentations, whitepapers, and milestones. You’ll work on translating security concepts for your client so they can make the best decisions to secure their mission‑critical systems.

This is your opportunity to take an active role in information security while growing your skills in cybersecurity and risk mitigation. Work with us as we protect our client's cyber infrastructure.

• TS/SCI clearance with a polygraph
• HS diploma or GED and 9+ years of experience with information assurance or cybersecurity, or bachelor's degree in information systems technology, CS, or Computer Engineering and 5+ years of experience with information assurance or cybersecurity .
• Experience supporting the development of security plans or packages for Assessment and Authorization(A&A) of IT systems Authority to Operate(ATO), including the implementation and assessment of cybersecurity controls.
• Experience reviewing and addressing firewall logs such as Cisco Stealthwatch.
• Experience with Security Technical Implementation Guides(STIGs).
• Ability to relate requirements and document requirements within the appropriate security document or within the RMF system, and coordinate with the program, other systems, and security personnel.
• Ability to create tactics, techniques, procedures, whitepapers, standard operating procedures, workflows, system data flows, and architectural diagrams.
• Ability to analyze RMF policies.
• Ability to work ON SITE in Quantico VA.

• Experience with Xacta or JCAM
• Experience reviewing NESSUS or ACAS vulnerability scans and reviewing audit logs, including STIGs and Information Assurance Vulnerability Alerts(IAVA)
• Experience providing network or system administration or computer operations
• Experience with Windows and Linux systems
• Experience supporting the Intelligence Community
• Knowledge of Windows and Linux OS, and cloud architecture and virtualization
• Possession of excellent interpersonal and presentation skills
• Possession of excellent verbal and written communication skills
• CISSP, CISM, CAP, or CASP+ Certification

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