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 Cybersecurity Engineer, Sr., for a role in an engineering support services program for U.S. Army customers at Aberdeen Proving Grounds, MD. The Cybersecurity Engineer, Sr. is responsible for the integration of security architecture & engineering efforts into the information technology life-cycle 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 C5ISR Center in their mission of cybersecurity research and development and cryptographic modernization.
Why Join Us?
Impactful Work: Be part of a team that develops secure, modern technology solutions to protect national security and defeat cyber threats.
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 Computer Engineer
Experience in heterogeneous computer networking technology and work in protocol and/or interface standards specification is preferred.
Analyzes and resolves INFOSEC technical problems.
Configures testbeds and conducts testing, records and analyzes results, and provides recommendations for improvements for the products/systems under test.
Areas of focus include Guard, Firewall, Secure Network Server, format security solutions, "Smart Cards", and emerging technologies and future trends.
Supports the integration of INFOSEC solutions and technologies into networks with particular attention to protocols, interfaces, and system design.
General experience includes system engineering; electrical design, software engineering; program design and implementation; configuration management; or maintenance.
Must have knowledge of TCP/IP, information security/authorization profiles, or security administration of Unix or NT network/systems.
Must have knowledge of Government security policies and familiarity with security-related technologies and auditing tools.
Must be capable of providing security engineering analysis on a variety of information systems.
Must be capable of developing security accreditation/certification documentation, and creating and maintaining security policy and procedures.
Must be capable of performing security certification engineering analysis, vulnerability assessments, and risk assessments.
Must be capable of designing and configuring security tools.
Must be capable of developing test procedures, establishing test environments, executing security certification test/demonstrations/evaluations, documenting results, and developing reports, conclusions, and recommendations.
Must be capable of conceptualizing and implementing security systems and architectures.
Basic Qualifications
Must be a US Citizen and possess a Secret Clearance
Bachelor’s degree in computer science, electronics engineering or other engineering or technical 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, electronics engineering or other engineering or technical discipline
Experience supporting Army programs
Clearance Required:
Must possess an active DoD Secret clearance 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:February 13, 2026For 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.
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.
Top Skills
What We Do
We Are Leidos
For 50 years we have been tackling some of the biggest problems that face our nation and our world.
OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.
Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.
Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.
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