**Description** **Join a Mission-Driven Team at Leidos** The **Leidos Digital Modernization Sector,** within the Chief Information Security Office, is seeking an experienced **Information Assurance Engineer** to support the **Program Executive Office Integrated Warfare Systems (PEO IWS 5B)** program. In this role, you will collaborate with the Information System Security Manager and the broader security team to ensure compliance with **NIST 800-53** controls and maintain the integrity of critical information systems. You’ll play a key role in conducting security assessments, implementing security controls, and supporting the authorization process within the **Enterprise Mission Assurance Support Service (eMASS)** . **Location** : Chesapeake, VA **Clearance Requirement:** + **U.S. Citizenship** is required. + Must currently hold an **active DoD Secret Clearance** . **What You’ll Do** + Perform risk assessments and vulnerability analyses to identify and mitigate security risks. + Support security authorization activities, including **Assessment & Authorization (A&A)** and **Authority to Operate (ATO)** processes. + Conduct weekly audits and maintain comprehensive security documentation (SSPs, POA&Ms, Security Assessment Reports). + Monitor and maintain security controls through continuous monitoring practices. + Operate and manage security tools such as **SIEM** , **IDS/IPS** , and vulnerability scanners. + Respond to security incidents and coordinate remediation efforts. + Conduct compliance audits and reviews to ensure adherence to security policies. + Stay informed on emerging cybersecurity threats, vulnerabilities, and industry best practices. **Required Qualifications:** + Associate’s degree in Computer Science, Information Systems, Cybersecurity, or a related field (or equivalent experience) with 4+ years of related experience. Additional experience, training, and/or certifications may substitute education requirement. + Minimum of **4 years** of relevant experience in cybersecurity or information assurance. + Certifications: **IAT II Certifications** to meet DoD 8140 compliance: (i.e., CompTIA Security+ ) + Strong ability to research, learn, and collaborate effectively. **Preferred Qualifications:** + Additional certifications such as **MCP** or **Linux+** . + In-depth knowledge of **DAAPM** , **NISPOM CFR Part 32 117.18** , and **NIST 800-53** . + Experience with **Risk Management Framework (RMF)** , **eMASS** , and A&A processes. + Proficiency in scripting or programming within **Unix/Linux** environments. + Hands-on experience with vulnerability assessment tools such as **SCAP** , **ACAS/Nessus** , and **DISA STIGs** . Come break things (in a good way). Then build them smarter. We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.” **Original Posting:** August 13, 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 $67,600.00 - $122,200.00 The Leidos pay range for this job level is a general guideline onlyand 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. REQNUMBER: R-00164492 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.