> Markdown version of [/jobs/ext/3970095-information-systems-security-engineer-sme-cloud-based-active-top-secret](https://www.wearedevelopers.com/jobs/ext/3970095-information-systems-security-engineer-sme-cloud-based-active-top-secret). 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 Engineer SME/Cloud based / Active Top Secret - **Company:** Peraton Inc - **Location:** Washington, DC, United States - **Experience:** Expert - **Salary:** $176,000.0 - $282,000.0 - **Contract:** Permanent contract - **Skills:** Cloud Computing, Cyber Security, Information Systems, Information Systems Security Architecture Professional, Information Technology - **Published:** October 27, 2026 - **Apply:** https://www.careerbuilder.com/job-details/information-systems-security-engineer-sme-cloud-based-active-top-secret-washington-dc--5d3fd9a7-7178-448e-88b2-1425b9d6cff5 ## About the Role Information Systems Security Engineering (ISSE), Top Secret Clearance, Cloud Computing, Information Systems Security Engineering (ISSE), Cloud Computing, Information Technology & Information Systems, Mentoring, Federal Bureau of Investigation (FBI), Team Lead/Manager, System Lifecycle, Required: * Bachelor's degree and 12 years of experience in secure design, analysis, and test of information security systems and products. * Minimum of 10 years of experience applying methods, standards and approaches for ensuring the baseline security safeguards are appropriately implemented and documented. * Minimum of 10 years of experience creating and updating security test plans for detecting and mitigating risk to information systems. * Certification: * Certified Information Systems Security Professional (CISSP) * Certified Ethical Hacker (CEH) certification required * U.S. citizenship required. * Active Top Secret security clearance required. * The ability to obtain a final TS/SCI. Preferred: * Cloud certification. ## Description Peraton is seeking an Information Systems Security Engineer - Subject Matter Expert (SME)/Cloud-based to support its Federal Strategic Cyber programs., * Lead, mentor, and supervise a team of contractor security professionals responsible for the end-to-end implementation of the RMF lifecycle for FBI IT systems. * Oversee and coordinate activities within the Prepare step, ensuring roles, responsibilities, and risk management strategies are clearly defined and maintained. * Guide system categorization efforts to ensure all information systems are appropriately classified based on mission/business impact and regulatory requirements. * Advise on the selection, tailoring, and documentation of security controls aligned with system categorizations, Bureau risk appetite, and compliance requirements. * Oversee the implementation of technical, operational, and management controls throughout system and application lifecycles, with a particular focus on quality and completeness of all deliverables. * Ensure comprehensive security control assessments are planned, executed, and documented to validate the effectiveness of implemented safeguards. * Prepare risk management documentation for system authorization and executive decision-making. * Direct ongoing monitoring and continuous assessment activities, collecting metrics to adjust security strategies and ensure sustained compliance. * Serve as a principal technical advisor on cybersecurity, bringing subject-matter expertise to risk analysis, incident response, system remediation, and audit support efforts. * Foster a culture of security awareness, providing technical guidance and training to both team members and stakeholders. * Track, report, and communicate status, risks, and improvement opportunities related to security engineering activities to leadership and stakeholders. * Maintain up-to-date knowledge of RMF, NIST guidance, and industry best practices in support of continuous process improvement.