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Subject Matter Expert; SME

Job in Mt Rainier, Mount Rainier, Prince George's County, Maryland, 20712, USA
Listing for: Leidos
Full Time position
Listed on 2026-02-12
Job specializations:
  • Engineering
    Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 100000 - 125000 USD Yearly USD 100000.00 125000.00 YEAR
Job Description & How to Apply Below
Position: Subject Matter Expert (SME)
Location: Mt Rainier

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 Subject Matter Expert (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.

Why Join Us?
  • 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
Your Role and Responsibilities As a Cyber Security Engineer SME
  • 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.
  • Provide leadership and direction to team members working on the same project.
  • 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.
Basic Qualifications
  • 15+ years of communications experience with a focus on:
    Crypto Modernization:
    Experience in communications and cryptographic modernization initiatives. COMSEC & Type 1/High Assurance Devices:
    Proven experience operating and maintaining Type 1/High Assurance cryptographic devices and supporting COMSEC programs. SME in Secure Voice cryptographic development testing, and certification, specifically for Tactical Secure Voice systems.
  • Master’s degree in engineering, computer science, electronics engineering, or a related technical discipline.
  • Appropriate DoD 8750 certification (Security+ or higher).
  • Familiarity with Government security policies and security-related technologies and auditing tools.
  • U.S. Citizenship and possession of a TS/SCI Clearance.
Preferred Qualifications:
  • General experience includes system engineering; electrical design, software engineering; program design and implementation; configuration management; or maintenance.
  • Experience supporting Army programs
Clearance Required:
  • Must possess an active DoD TS/SCI at time of consideration

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:

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…

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