SME Information System Security Engineer Lead job opportunity at Leidos.

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DatePosted 12 Days Ago bot
Leidos SME Information System Security Engineer Lead
Experience: 10-years
Pattern: full-time
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loacation Alexandria, VA, United States Of America
loacation Alexandria, VA....United States Of America

This Department of War enterprise data and analytics program delivers mission-critical capabilities that enable leaders across the Department to make faster, better-informed decisions using trusted data at scale. Leidos Digital Modernization sector is seeking an experienced   SME Information System Security Engineer   Lead   to support the delivery, enhancement, and adoption of enterprise data and analytics products used across multiple DoD organizations.   In this role, you will work alongside government partners, engineers, and other industry teammates to translate operational and strategic requirements into scalable, production-ready solutions. You will contribute directly to product planning, execution, and continuous   improvement— helping ensure capabilities are delivered efficiently, aligned to mission priorities, and positioned for sustained success.   This position offers the opportunity to work on a high- visibility,   enterprise program at the intersection of data, analytics, and emerging AI technologies. Ideal candidates are motivated by mission impact, comfortable operating in complex stakeholder environments, and interested in building deep domain   expertise   while delivering capabilities with real-world national security outcomes.   Primary Responsibilities:   Lead the implementation of information security architectures and functionality to ensure uniform application of security policy across the enterprise.   Validate and verify system security requirements and   establish   system security baseline designs for major system elements and all system interfaces.   Establish, manage,   operate , and   maintain   DoD RMF compliant processes and procedures for evaluating and authorizing changes to the System.   Collect, review, assess, and provide feedback on System cybersecurity architecture and engineering artifacts.   Collect, review, assess, and provide feedback on System cybersecurity Body-of-Evidence (BOE) results   required   to support the DoD RMF cybersecurity authorization process.   Conduct periodic compliance scanning of the runtime System to meet all DoD periodic cybersecurity monitoring requirements.   Support Government cybersecurity officials in preparing cybersecurity packages, including Interim Authority to Test (IATT) packages, Authority to Operate (ATO) packages, and Change Requests (CRs).   Manage a team of 8-15 direct reports, providing leadership, mentorship, and performance evaluations.   Develop and implement security policies, standards, and procedures to ensure compliance with DoD regulations.   Coordinate with cross-functional teams to ensure security measures are integrated into the system development lifecycle.   Provide technical   expertise   and guidance on   cybersecurity   best practices and risk management.   Oversee the development and maintenance of security documentation and reports.   Ensure continuous improvement of security processes and procedures.   Conduct security assessments and audits to   identify   vulnerabilities and recommend mitigation strategies.   Stay current with emerging security threats and technologies to ensure the System   remains   secure and compliant.   Basic Qualifications:   Bachelor’s degree or higher from an accredited college or university OR offerings listed in DoD 8140 Training Repository , CISM, CASP   OR CISSP-ISSMP or GSLC certification.   Minimum of 10 years of experience in information security engineering or related field.   Experience with DoD Risk Management Framework (RMF) and NIST 800-53 Rev 4 or Rev 5.   Experience in managing and leading a team of cybersecurity professionals.   Strong understanding of cybersecurity principles, practices, and technologies.   Experience with compliance scanning and cybersecurity monitoring.   Excellent communication and interpersonal skills.   Ability to obtain and   maintain   a TS/SCI with CI Poly clearance.   Experience in preparing cybersecurity packages, including IATT and ATO packages.   Strong analytical and problem-solving skills.   Preferred Qualifications:   Master’s degree in Cybersecurity, Information Technology, or related field.   Experience with DoD systems and environments.   Knowledge of JIE (Joint Information Environment) or similar frameworks.   Experience with cloud-based security solutions and architectures.   Familiarity with advanced cybersecurity tools and technologies.   Experience in developing and implementing security policies and procedures.   Strong project management skills and experience with Agile methodologies.   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: February 18, 2026 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 $131,300.00 - $237,350.00 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.

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