The Leidos Digital 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).
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:
Must currently hold an active DoD Secret Clearance.
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.
Active DoD Secret clearance.
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.
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:July 21, 2026For 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.
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.
Skills Required
- Must currently hold an active DoD Secret Clearance
- Associate's degree in Computer Science, Information Systems, Cybersecurity, or related field (or equivalent experience) with 4+ years related experience
- Minimum of 4 years of relevant experience in cybersecurity or information assurance
- IAT II Certifications to meet DoD 8140 compliance (e.g., CompTIA Security+)
- Strong ability to research, learn, and collaborate effectively
- 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
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
-
Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
-
Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
-
Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
