> Markdown version of [/jobs/ext/4244912-information-systems-security-officer-e3-clearance-required](https://www.wearedevelopers.com/jobs/ext/4244912-information-systems-security-officer-e3-clearance-required). 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 - E3 (Clearance Required) - **Company:** Lockheed Martin - **Location:** Littleton, CO, United States - **Salary:** $95,900.0 - $178,100.0 - **Contract:** Permanent contract - **Skills:** Xacta, Cyber Security, Databases, Identity and Access Management, Information Security Management, Network Security, Servicenow, Plan of Action and Milestones - **Published:** October 5, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9218243/information-systems-security-officer-e3-clearance-required ## About the Role This position requires c urrent Top Secret/SCI clearance with an investigation within the last 5 years and willingness to receive CI Polygraph., * Current Top Secret/SCI clearance with an investigation within the last 5 years and willingness to receive CI Polygraph * DoD 8140 IAT Level II certification or higher * Hands-on experience with industry standard Information Assurance tools * Experience working in environments supporting IC and/or DoD customers * Experience with obtaining and maintaining system ATOs * Hands-on auditing and system investigation experience * Ability to develop, review and maintain RMF artifacts Desired Skills * Currently working in environment supporting SCI Programs * Hands on experience with the RMF * DoD 8140 IAM Level III certification * Experience implementing new and complex technologies at multiple classification levels within large environments. * TS/SCI with a current CI Poly * Have a Bachelors degree from an accredited college in a related discipline, or equivalent experience/combined education, with 5 years of professional experience; or 3 years of professional experience with a related Masters degree. * Experience with RMF database repositories (Emass, ServiceNow, XACTA). ## Description Oversee day-to-day information system security operations including hardware and software implementations. - Carry out technical administration of IS in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF). - Upkeep, monitor, analyze, and respond to network and security events. - Document compliance actions within the approved automated compliance tracking system or develop a plan of actions and milestones (POA&M) with the Information Systems Security Manager (ISSM) to address non-compliance in the allotted time frame. - Ensure systems are operated, maintained, and disposed of in accordance with internal security policies and practices outlined in the security plan.