Principal Information Systems Security Engineer

Leidos Inc; Linthicum (MD); On-site; USD 154,050 - 278,475; Full time

Benefits offered by this job

Health and wellness programs

Paid leave

Retirement options

Job summary

Leidos Inc is seeking a Senior Information Security Systems Engineer in Linthicum, Maryland. This role includes conducting cybersecurity risk assessments and supporting the implementation of security architecture for critical systems. The ideal candidate will have a Bachelor’s degree in Computer Science and at least 20 years of experience in information assurance.

Qualified applicants must possess a TS/SCI clearance and have strong expertise in risk management frameworks and network security engineering. The position offers a competitive salary range of $154,050 to $278,475.

Qualifications

• Minimum of 20 years of experience as an Information Systems Security Engineer or System Engineer.
• Experience developing and documenting system security requirements.
• Knowledge of NIST Special Publications 800 Series.

Responsibilities

• Conduct cybersecurity risk assessments and provide risk mitigation recommendations.
• Support the design and operation of capabilities to detect and mitigate threats.
• Engage stakeholders to ensure security objectives are defined.

Skills

Expertise in the Risk Management Framework (RMF)

Network technology and systems security engineering

Strong writing skills

Experience with security monitoring and incident response

Education

Bachelor of Science degree in Computer Science or related field

CISSP – ISSEP

Job description

Description

As a Senior Information Security Systems Engineer (ISSE) you will join a small team of security engineers providing Information Assurance (IA) Architecture Analysis and Security Engineering Support for the implementation and fielding of the National Leadership Command Capability in support of Nuclear Command, Control, and Communications (NC3), Continuity of Government (COG), and Senior Leader communications. The ISSE will perform in a consultant‑like role providing technical knowledge, expertise and advice to our customer.

Primary Responsibilities

• Conduct cybersecurity risk assessments and provide prioritized risk mitigation recommendations in support of the customer's mission.
• Support the design, implementation, and operation of real‑time capabilities to discover, detect, analyze, and mitigate threats and vulnerabilities.
• Analyze candidate architectures by evaluating against defined security requirements to identify security gaps, and provide recommended mitigation strategy.
• Research and evaluate candidate emerging technologies to determine cybersecurity effectiveness.
• Aid stakeholders through the development, refinement, delivery, and implementation of innovative solutions and capabilities.
• Engage stakeholders to ensure security objectives, protection needs, security requirements and associated validation methods are defined.
• Validate and verify system security requirements definitions and analysis and establish system security design.
• Design, develop, implement and/or integrate IA and security systems and system components including those for networking, computing and enclave environments with multiple enclaves and varying data protection/classification requirements.
• Assist architects and systems developers in the identification and implementation of appropriate information security functionality to ensure uniform application of Agency security policy and enterprise solutions.
• Contribute to the security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operations.
• Review C&A documentation, providing feedback on completeness and compliance of its content.

Qualifications

• Bachelor of Science degree from an accredited university ideally in Computer Science, Information Assurance, Information Security Systems Engineering or related field with a minimum of 20 years of experience as an Information Systems Security Engineer (ISSE) or System Engineer on programs and/or contracts with the customer space.
• CISSP – ISSEP.
• Strong writing skills.
• Confidence and ability to present briefings to senior‑level DoD officials in both prepared briefings and ad‑hoc discussions.
• Expertise in the Risk Management Framework (RMF) and conducting cybersecurity risk assessments.
• Expertise in network technology and systems security engineering, including identifying, researching, characterizing, and documenting security weaknesses related to operating systems, software applications, firmware, network hardware components, and network architecture design.
• Experience developing and documenting system security requirements and conducting requirements gap analysis.
• Experience with security monitoring and incident response capabilities.
• Experience with emerging technologies such as Zero Trust and Cloud Computing.
• Knowledge of, and practical experience with, the NIST Special Publications 800 Series, CNSSI 1253, and DoD 8500.
• Ability to work independently within a schedule and with little direction.

Clearance Required

Active TS/SCI with polygraph.

Pay and Benefits

Pay Range: $154,050.00 – $278,475.00.

Benefits include competitive compensation, health and wellness programs, income protection, paid leave, and retirement options.

Commitment to Non‑Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, sexual orientation, gender identity, disability, veteran status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.