Cybersecurity Systems Engineer

Leidos•Linthicum Heights, MD

About The Position

Ready to Protect What Matters Most? If you’re a seasoned Systems Engineer with deep cybersecurity expertise and a passion for safeguarding mission-critical systems, this is your opportunity to make a real impact. Leidos is seeking a Cybersecurity Systems Engineer to support a highly complex Information Assurance program. In this role, you’ll work at the forefront of national security, ensuring advanced systems meet the highest standards of security, performance, and compliance. This is more than a job — it’s a chance to influence system design, reduce risk, and protect critical capabilities from evolving threats. As a trusted technical leader, you will: Contribute to the development and evaluation of key systems engineering documentation, including: Systems Engineering Plans Initial Capabilities Documents Requirements Specifications Security requirements and security test documentation Provide technical leadership across system development, integration, and testing activities Lead requirements elicitation, analysis, and functional allocation efforts Conduct systems requirements reviews and perform both technical and non-technical assessments Support planning and test analysis for the DoD Certification & Accreditation (C&A) process and other Government C&A processes Perform high-assurance cybersecurity evaluation activities for devices undergoing certification Review and assess security artifacts to ensure compliance with stringent security requirements Clearly document security deficiencies and provide actionable recommendations Translate vulnerability insights into practical risk mitigation guidance Recommend improvements to requirements, processes, and templates to strengthen overall security posture Collaborate across teams and participate in security-focused meetings and technical reviews

Requirements

8 years of Systems Engineering experience
Bachelor’s degree in Systems Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related field (Five additional years of Systems Engineering experience may substitute for a degree)
Strong background in Information Assurance and/or Cryptographic systems
Exceptional written and verbal communication skills
Experience working in collaborative team environments and leading small technical teams
Active TS/SCI with Polygraph clearance

Nice To Haves

Experience supporting Space, Weapon, Ground, or Terminal system development or evaluation
Direct experience with DoD Certification & Accreditation (C&A) processes
Space Systems Engineering experience

Responsibilities

Contribute to the development and evaluation of key systems engineering documentation, including: Systems Engineering Plans Initial Capabilities Documents Requirements Specifications Security requirements and security test documentation
Provide technical leadership across system development, integration, and testing activities
Lead requirements elicitation, analysis, and functional allocation efforts
Conduct systems requirements reviews and perform both technical and non-technical assessments
Support planning and test analysis for the DoD Certification & Accreditation (C&A) process and other Government C&A processes
Perform high-assurance cybersecurity evaluation activities for devices undergoing certification
Review and assess security artifacts to ensure compliance with stringent security requirements
Clearly document security deficiencies and provide actionable recommendations
Translate vulnerability insights into practical risk mitigation guidance
Recommend improvements to requirements, processes, and templates to strengthen overall security posture
Collaborate across teams and participate in security-focused meetings and technical reviews