Information System Security Officer

Leidos Dynetics, within our Corporate Information Security Office and reporting through our Digital Modernization sector, is seeking a talented Information System Security Officer (ISSO) to join a diverse team to create unique solutions for complex problems. With offices across the United States engaging in the defense, space, cyber and commercial fields, Leidos Dynetics provides responsive, cost‑effective engineering, scientific and IT solutions.

The ISSO will support our Classified Information System Cybersecurity/Information Assurance Program and report to the Information System Security Manager (ISSM) on all aspects of classified information system security compliance.

All work will be performed on‑site in our Huntsville, AL office.

Currently hold active DoD Secret clearance with ability to obtain Top Secret.

• Audit information systems to ensure compliance with security policies and procedures while reporting any discrepancies to the ISSM, P-ISSM, ISO or FSO.
• Assist in the Risk Management Framework (RMF) authorization process by developing and maintaining artifacts for the IS Body of Evidence (BoE).
• Review and approve Configuration Management (CM) requests, within delegated authority, for all related hardware, software, and security‑relevant functions, ensuring proper documentation and maintenance throughout the CCB approval process.
• Assist with sanitization and release of hardware in accordance with security policies or Authorizing Official (AO) guidance.
• Test, evaluate and apply required technical security controls and conduct periodic inspections of information systems.
• Assess and monitor system compliance, audit, develop security plans and deliver information systems security education and awareness.
• Investigate information system security violations and prepare reports specifying corrective and preventative actions.
• Conduct technical and administrative assessments.
• Integrate new cybersecurity processes, procedures, and tools.
• Support the creation, review and update of cybersecurity documentation and other technical writing.

• Bachelor's degree coupled with a minimum of four years applicable, related experience; associate with six years or master's and two years. Equivalent relevant experience and/or certifications may be considered in lieu of degree.
• Must possess CompTIA Security+ CE certification.
• Currently hold active DoD Secret clearance with ability to obtain Top Secret.

• Cybersecurity, systems security or hardening, Information Technology.
• Compliance‑based auditing using the Risk Management Framework (RMF), DCSA Assessment and Authorization Guide (DAAG), National Industrial Security Program Operating Manual (NISPOM).
• Working with and/or supporting computer technologies such as databases, operating systems, computer network hardware, software programs, hardware troubleshooting or electronics.
• Physical security, project or program management, office management, senior administration, or account management.
• Security configurations across multiple operating systems in various environments, including Windows, Linux, utilizing Active Directory/Group Policy, Delinea, etc.
• Organization and self‑motivation with excellent documentation skills and the ability to work with minimal supervision.

• Experience with IT (Windows, Linux) and/or security‐related certifications (CISSP, CISM, CISA, etc.).
• Experience working in DoD classified operating and/or laboratory environments.
• Experience with various information system security tools that address vulnerability analysis and mitigation (e.g., SPLUNK, Trellix, Solar Winds, Tenable, SCAP, STIG Viewer).
• Familiarity with implementation of Government directives and policies derived from NIST, STIG, DoD, or other Government Regulatory compliance standards within a professional industry.
• Experience in the execution of the Assessment & Authorization processes, as defined within the Risk Managed Framework (RMF), eMASS.
• Experience providing technical security consultation for complex, cross‑domain, heterogeneous classified networked environments in collaboration with internal/external customers, Information Technology (IT).
• Familiarity with execution and management of cyber incident response; preservation, containment, and eradication.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.