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Subject Matter Expert

Job in Mt Rainier, Mount Rainier, Prince George's County, Maryland, 20712, USA
Listing for: Leidos
Full Time position
Listed on 2026-02-19
Job specializations:
  • IT/Tech
    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
Location: Mt Rainier

Description

Leidos is a FORTUNE 500 company bringing a mix of innovative technology and sector expertise to customers in the national security, engineering, and the health industries. At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Our Mission, Vision, and Values guide the way we do business.

The Leidos Digital Modernization Sector is seeking a qualified and trained Subject Matter Expert for a role in an engineering support services program for U.S. Army customers at Aberdeen Proving Grounds, MD. The Subject Matter Expert is responsible for performing the software engineering function, including the design, development, testing, troubleshooting, and debugging of software programs for enhancements and new software-intensive systems and products to bring about the successful completion of the CYBERTRON program goals and objectives.

The CYBERTRON program delivers highly skilled engineering services to the U.S. Army C5

ISR Center in their mission of cybersecurity research and development and cryptographic modernization.

Primary Responsibilities
  • Develop computer software code in a variety of software programming languages.
  • Troubleshoot and develop technical solutions related to software and setup errors for field engineers, technicians, and customers.
  • Creates workaround procedures when standard procedures have failed and ensures issues are resolved in a timely fashion.
  • Software requirements analysis, analysis of hardware compatibility, development of software products and tools used for design, development and maintenance of infrastructure, and platforms.
  • Ability to handle task specific questions. 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.
Basic Qualifications
  • Must be a US Citizen and possess a Secret Clearance.
  • Bachelor’s degree in computer science, electronics engineering with 12+ years of relevant experience.
  • Appropriate DoD 8750 certification (Security+ or higher).
  • Have experience in a variety of software programming languages.
  • Have experience in a variety of business systems and applications.
  • Also have experience in designing, testing, debugging and documenting software.
  • Requires deep knowledge of and ability to apply advanced technical principles, theories, and concepts.
Preferred Qualifications
  • Eligible for TS / SCI.
  • Master’s degree in computer science, electronics with 10+ years of relevant experience.
  • Experience supporting Army programs.

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 12, 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 $ - $. 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.

About

Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of…

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