Cyber Defense Engineer SME; Subject Matter Expert
Listed on 2026-02-12
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Engineering
Cybersecurity, Systems Engineer
Description
Join Leidos and Shape the Future of Cybersecurity Innovation
Leidos, a FORTUNE 500 company, is a global leader in delivering innovative technology solutions to customers in national security, engineering, and health industries. At Leidos, we are driven by a commitment to excellence, empowering our teams, contributing to our communities, and operating sustainably. Guided by our Mission, Vision, and Values, we are dedicated to doing the right thing for our customers, our people, and the world.
We are seeking a highly qualified and trained Active Cyber Defense Engineer SME to join our Digital Modernization Sector and support the groundbreaking CYBERTRON Program at Aberdeen Proving Grounds, MD. This program is at the forefront of research and development (R&D) and engineering services for the U.S. Army, delivering cutting-edge solutions to combat emerging cyber threats and advance the capabilities of Army technologies.
As a key member of the leadership team, you will play a pivotal role in driving innovation and ensuring mission success.
Impactful Work: Be part of a team that develops secure, modern technology solutions to protect national security and defeat cyber threats.
Leadership Opportunity: Serve as a key leader, mentor, and technical expert, shaping the future of Army technologies.
Collaborative Environment: Work alongside talented professionals in a dynamic and innovative setting.
Professional Growth: Leverage your expertise while advancing your career through challenging and rewarding projects.
Develop and implement R&D strategies aligned with the U.S. Army C5
ISR mission objectives.Evaluate and integrate emerging technologies and methodologies to drive innovation.
Monitor industry trends to identify opportunities for advancement.
Lead, mentor, and inspire the R&D team, fostering technical excellence and career development.
Oversee all aspects of R&D projects, ensuring alignment with DoD Cyber Security Strategy and architecture requirements.
Support may include physical testing, analyzing data, and interpreting information.
Prepare recommendations and solutions for specific areas in question.
Prepare and present detailed reports on project progress, findings, and outcomes to stakeholders.
Collaborate with customer stakeholders, functional leaders, subcontractors, and support personnel to achieve program goals.
12+ years of comprehensive cyber security, with a minimum 8 years of experience in Crypto Modernization and Key Management, possessing expertise across the entire key lifecycle. Core competencies include:
Full Key Lifecycle Management:
Proven experience in the generation, secure distribution, and consumption of cryptographic keys at the unit level. Key Distribution Technologies:
Deep understanding and practical experience with Key Management Infrastructure (KMI), KMI Management Client (MGC), KMI Over-the-Network Keying (OTNK), iApp, MPMSS, and modern fill devices. Cryptographic Expertise:
Proficient in Public Key Infrastructure (PKI), NSA High Assurance standards, cryptographic protocols (CMS), and emerging Post-Quantum Cryptography technologies.Bachelor’s degree in engineering, computer science, electronics engineering, or a related technical discipline.
Familiarity with Government security policies and security-related technologies and auditing tools.
U.S. Citizenship and possession of a TS/SCI Clearance.
Experience in heterogeneous computer networking technology and work in protocol and/or interface standards specification.
General experience includes system engineering; electrical design, software engineering; program design and implementation; configuration management; or maintenance.
Experience supporting Army programs.
- Must possess an active DoD TS/SCI at time of consideration.
Pay Range $ – $
The Leidos pay range for this job level is a general 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.
Commitment to Non-DiscriminationAll qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.
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