> Markdown version of [/jobs/ext/4638091-information-systems-security-officer](https://www.wearedevelopers.com/jobs/ext/4638091-information-systems-security-officer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Information Systems Security Officer - **Company:** E-INFOSOL LLC - **Location:** Huntsville, AL, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Xacta, CompTIA Security+, Cyber Security, Information Systems, Software Engineering, Software Vulnerability Management, Information Technology, Plan of Action and Milestones - **Published:** November 8, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=21e4e6615f7c0b7b ## About the Role E-INFOSOL LLC is seeking a motivated and results-driven ISSO to be a full-time employee in Huntsville AL to join our innovative and customer solutions focused team., * Active Top Secret clearance (Must meet applicable security, clearance, training, background, facility-access, and polygraph requirements) * Bachelor's Degree in one of the following disciplines (Computer Science, Cybersecurity, Data Science, Information Systems, Information Technology, or Software Engineering) OR one of the following Certifications (GMON, Security X/CASP+, CCISO, CCSP, CGRC/CAP, CISSO, Cloud+, GCSA, GSEC, Security+, SSCP) Required Technical Experience * Intermediate proficiency aligned to Security Architect (652/612) of DOD 8140 requirements * 5+ years of experience demonstrating the ability to execute SAA/RMF support and maintain accurate security documentation Preferred Technical Experience * Demonstrated experience with DOJ SAA or RMF * Demonstrated experience with JCAM/Xacta * Possess familiarity with NIST RMF documentation * Demonstrated experience with POA&M and vulnerability management * Possess experience with annual assessment support * Possess strong stakeholder coordination ## Description * Perform lifecycle ISSO support for assigned systems * Coordinating SAA artifacts * Control implementation evidence, POA&Ms, vulnerabilities, annual assessments, data calls, and system-owner actions * Maintains accurate records * Monitors authorization milestones * Escalates risk or schedule issues that could affect ATO continuity or compliance.