Are you ready to protect the infrastructure behind national security? Leidos is hiring a Certification & Accreditation (C&A) Specialist to support securing mission-critical systems across cloud and on-prem environments in Suitland, MD. In this role, you'll provide efforts that ensure full compliance, drive accreditation success, and safeguard operations at every level.

Primary Responsibilities

Manage the full lifecycle of Accreditation & Authorization (A&A) across diverse mission systems.Prepare, track, and maintain RMF documentation (BOEs, SAPs) within XACTA and EMASS.Conduct risk assessments, security evaluations, and documentation aligned with evolving policies and standards.Engage with stakeholders including ONI, Fleet Cyber, NAVINTEL, DIA, DISA, and other security validation authorities.Deliver training on security controls, RMF updates, and ATO status within classified environments.Continuously monitor STIGs, RMF controls, vulnerability scans, and policy compliance.Support approval processes for implementing cross-domain solutions.Coordinate with contractors responsible for secure system and software development.Perform continuous monitoring to ensure adherence to cybersecurity and cloud security best practices across the environment.Participate in technical exchange meetings and provide feedback as needed.

Basic Qualifications 

Experience: 12+ years (Bachelor's) or 10+ years (Master's) of relevant work experience. Additional experience, trainings, or certifications may be considered in lieu of a degree.Clearance: Active DoD TS/SCICertification: Active IAM Level III (e.g., CISSP) or ability to obtain within 30 daysExpertise In:RMF, DIACAP, DCID 6/3, ICD-503 frameworksXACTA and EMASS platforms (SIPR, NIPR, JWICS)Project management for secure systems deploymentCollaboration with IC, DoD, DISA, NAVINTEL IA, FLTCYBERCOM, and other security governance bodiesSecuring systems and software, including cloud architectures and advanced security controls

Preferred Qualifications 

Certified Ethical Hacker (CEH)Experience in preparing high-quality technical documents and delivering briefings to senior leadershipFamiliarity with the latest DISA STIG requirements and the other evolving cybersecurity policy requirementsFamiliarity with the Amazon Web Services (AWS) Cloud

Why Leidos?

Join a team where your cybersecurity expertise drives national readiness. You’ll work with committed professionals, cutting-edge platforms, and high-level stakeholders—delivering secure solutions that matter.

Ready to secure the future? Apply now and be part of the mission.

NITESONI

EIO2024

Original Posting:July 23, 2025

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $126,100.00 - $227,950.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.