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Leidos
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July 25, 2026
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Information Systems Security Officer

Huntsville, AL
Full-time
Onsite
Entry Level
Dynetics, a wholly owned subsidiary of Leidos, is seeking a talented Information System Security Officer (ISSO) to join a diverse team to create unique solutions for complex problems. The Information System Security Officer (ISSO) will be responsible for supporting our Classified Information System Cybersecurity/Information Assurance Program.
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Responsibilities

  • Assessing and monitoring system compliance, auditing, security plan development and delivering information systems security education and awareness
  • Investigating information system security violations and help prepare reports specifying corrective and preventative actions
  • Support the creation, review and update of cybersecurity documentation and other technical writing
  • Support the auditing of information systems to ensure compliance with security policies and procedures while reporting any discrepancies to the ISSM, ISO or FSO
  • Assisting in the Risk Management Framework (RMF) authorization process by developing and maintaining artifacts for the IS Body of Evidence (BoE)
  • Reviewing Configuration Management (CM) requests of all associated hardware, software, and security relevant functions are maintained and documented as part of CCB approval process
  • Sanitization and release of hardware in accordance with security policies or Authorizing Official (AO) guidance
  • Testing, evaluating and application of required technical security controls and periodic inspections of information systems

Qualification

Required

  • DoD 8140/DoD Cyber Workforce Framework (DCWF) work role (for example, CompTIA Security+, CySA+, CISSP, CISM or equivalent), or the ability to otherwise satisfy DoD 8140 qualification requirements through approved education, training, or experience
  • Position Typically requires at least 1-3 years of applicable, related experience in computer-related discipline
  • 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)
  • Experience working with and/or supporting computer technologies (such as databases, operating systems, computer network hardware, software programs, hardware troubleshooting or electronics)
  • Some understanding of security configurations across multiple operating systems in various environments, including Windows, Linux, utilizing Active Directory/Group Policy, Delinea, etc. is required
  • Candidate must be highly organized, self-motivated with excellent documentation and time management skills
  • Must possess the ability to communicate well with others and work with minimal supervision

Preferred

  • Some Experience with IT (Windows, Linux) and/or security related certifications (e.g., ISC2 Certified in Cybersecurity (CCC) certification, CompTIA CySA+ certification, GIAC Certified Incident Handler (GCIH) certification)
  • Experience working in DoD classified operating and/or laboratory environments
  • Some Experience with various information system security tools that address vulnerability analysis and mitigation. These may include SPLUNK, SolarWinds, Trellix, Tenable, and SCAP
  • Familiarity with implementation of Government directives and policies derived from NIST, STIG, DoD, or other Government Regulatory compliance standards within a professional industry
  • Familiarity in the execution of the Assessment & Authorization processes, as defined within the Risk Managed Framework (RMF), eMASS
  • Ability to support technical security consultation for complex, cross-domain, heterogeneous classified networked environments in collaboration with internal/external Customers, Information Technology (IT) with Team support
  • Familiarity with the execution and management of cyber incident response; preservation, containment, and eradication
  • Proficiency in interpreting logs from command line results and SIEM tools (e.g., Splunk, SolarWinds, and Command Line)

Benefits

Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations.
Glassdoor
3.9
Founded in 1969
Reston, Virginia, USA
10001+ employees
https://www.leidos.com
Leidos is an industry and technology leader serving government & commercial customers with smarter, more efficient digital and mission innovations.
Glassdoor
3.9
Founded in 1969
Reston, Virginia, USA
10001+ employees
https://www.leidos.com