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Cyber Defense Engineer - SME II

Job in Hagerstown, Washington County, Maryland, 21749, USA
Listing for: Leidos Inc
Full Time position
Listed on 2026-02-12
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
  • Engineering
    Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Active Cyber Defense Engineer - SME II

Overview

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.

The Leidos Digital Modernization Sector is seeking a qualified and trained Active Cyber Defense Engineer, SME II for a role in an engineering support services program for U.S. Army customers at Aberdeen Proving Grounds, MD. The Active Cyber Defense Engineer, SME II is responsible for monitoring and analyzing the security posture of networks, servers, endpoints, and other systems 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.

Your Role and Responsibilities

Your Role and Responsibilities As a Cyber Security Engineer SME

Applying expert technical knowledge to design, implement, monitor, and upgrade cybersecurity measures to actively defend information systems and networks. This role functions as a technical expert across multiple project assignments and often mentors junior staff.

Functional Responsibilities:

  • Vulnerability & Risk Assessment:
    Conducts vulnerability and risk assessments, and designs and implements solutions to protect the confidentiality, integrity, and availability of sensitive information.

  • Security Architecture & Design:
    Designs, develops, engineers, and implements solutions to multi-level security (MLS) and general security requirements for system architectures.

  • Incident Response:
    Provides support for complex computer network defense techniques, including identifying and investigating intrusions, and offering incident response and remediation support.

  • Monitoring & Analysis:
    Performs comprehensive computer surveillance/monitoring, analyzes information requirements, identifies vulnerabilities, and assists with making security improvements.

  • Technical Support:
    Serves as a technical resource for advising and assisting other departments on security-related projects and operational tasks.

  • Documentation & Planning:
    Prepares and delivers status reports, develops security standards, and participates in the design of information system contingency plans.

Basic Qualifications
  • Must be a US Citizen and possess a Secret Clearance

  • Bachelor's degree in computer science, systems engineering, cybersecurity or other engineering discipline with up to 10+ years of relevant experience

  • Appropriate DoD 8750 certification (Security+ or higher)

  • Requires expert knowledge of and ability to apply advanced technical principles, theories, and concepts

Preferred Qualifications
  • Eligible for TS / SCI

  • Master's degree in computer science, systems engineering, cybersecurity or other engineering discipline

  • Experience supporting Army programs

Clearance
  • Must possess an active DoD Secret clearance at time of consideration

Additional Notes

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.

Compliance & Benefits

Commitment to Non-Discrimination

All 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.

Security & Verification

Securing Your Data:
Leidos will never ask you to provide payment-related information during any part of the employment application process. We will only communicate via Leidos-approved channels. If you suspect a scam, contact your local law enforcement and report to the U.S. Federal Trade Commission.

About Leidos & Pay

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation. Pay range $ - $. Additional factors considered in offers include responsibilities, education, experience, and internal equity.

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