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Information System Security Professionals (ISSO/ISSE) - Careers at Leidos

Leidos

Information System Security Professionals (ISSO/ISSE) - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Join Leidos' Elite Cyber Security Team in Annapolis Junction, MD

Leidos, a leader in national security solutions, seeks Information Systems Security Officers (ISSO) and Information Systems Security Engineers (ISSE) for high-impact programs in our Intelligence Sector, Cyber & Analytics Business Area (CABA). Support critical missions in Security Engineering, Computer Network Operations (CNO), SIGINT, and Cryptographic Key Management at prime programs for Ft. Meade, MD customer. Work locations include Annapolis Junction, North/South Laurel, Columbia, Linthicum, and Ft. Meade.

ISSO Role: Safeguard Mission-Critical Systems

The ISSO drives security frameworks, collaborating cross-functionally to protect against threats. Proactively manage policies, assessments, and authorization processes.

  • Implement and enforce security policies, standards, and methodologies.
  • Manage daily security operations and operational posture.
  • Evaluate solutions for classified processing and conduct risk assessments.
  • Handle configuration management and security documentation like SSPs.

ISSE Role: Engineer Resilient Secure Systems

The ISSE designs and integrates security into systems, ensuring lifecycle resilience. Apply expertise in security design, risk analysis, and testing.

  • Perform technical assessments and verify security requirements.
  • Build cybersecurity into operational environments.
  • Mitigate threats and support RMF authorization activities.
  • Enforce trusted relations and manage system changes.

Basic Qualifications & Opportunities

Multiple levels based on experience (12+ years preferred with Bachelor's/Master's in related field; case-by-case without degree). Expertise in DoD, NIST RMF, and customer policies required. Competitive pay: $131,300 - $237,350. Benefits include PTO, 401K match, flexible schedules, education support, and more. Make a difference in national security with Leidos!

Locations

  • Annapolis Junction, Maryland, United States

Salary

131,300 - 237,350 USD / yearly

Estimated Salary Rangehigh confidence

131,300 - 237,350 USD / yearly

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • RMF Complianceintermediate
  • Vulnerability Assessmentsintermediate
  • Security Policy Enforcementintermediate
  • Configuration Managementintermediate
  • Risk Management Frameworkintermediate
  • System Security Engineeringintermediate
  • NIST Standardsintermediate
  • DoD Security Regulationsintermediate

Required Qualifications

  • Bachelor's or Master's Degree in related field with 12+ years experience (experience)
  • Experience with classified information systems (experience)
  • Knowledge of DoD and NIST RMF standards (experience)
  • Proficiency in security documentation (SSPs, A&A packages) (experience)
  • Case-by-case consideration for candidates without Bachelor's Degree (experience)

Responsibilities

  • Propose, coordinate, implement, and enforce information systems security policies and standards
  • Maintain operational security posture and perform daily security operations
  • Conduct vulnerability/risk assessments and support certification/accreditation
  • Prepare and review System Security Plans (SSPs) and authorization packages
  • Perform technical security assessments and integrate cybersecurity into systems
  • Assess and mitigate threats throughout system lifecycle
  • Manage configuration changes and security impacts

Benefits

  • general: Paid Time Off
  • general: 11 Paid Holidays
  • general: 401K with 6% company match and immediate vesting
  • general: Flexible Schedules
  • general: Discounted Stock Purchase Plans
  • general: Technical Upskilling
  • general: Education and Training Support
  • general: Parental Paid Leave

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Leidos logo

Information System Security Professionals (ISSO/ISSE) - Careers at Leidos

Leidos

Information System Security Professionals (ISSO/ISSE) - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Join Leidos' Elite Cyber Security Team in Annapolis Junction, MD

Leidos, a leader in national security solutions, seeks Information Systems Security Officers (ISSO) and Information Systems Security Engineers (ISSE) for high-impact programs in our Intelligence Sector, Cyber & Analytics Business Area (CABA). Support critical missions in Security Engineering, Computer Network Operations (CNO), SIGINT, and Cryptographic Key Management at prime programs for Ft. Meade, MD customer. Work locations include Annapolis Junction, North/South Laurel, Columbia, Linthicum, and Ft. Meade.

ISSO Role: Safeguard Mission-Critical Systems

The ISSO drives security frameworks, collaborating cross-functionally to protect against threats. Proactively manage policies, assessments, and authorization processes.

  • Implement and enforce security policies, standards, and methodologies.
  • Manage daily security operations and operational posture.
  • Evaluate solutions for classified processing and conduct risk assessments.
  • Handle configuration management and security documentation like SSPs.

ISSE Role: Engineer Resilient Secure Systems

The ISSE designs and integrates security into systems, ensuring lifecycle resilience. Apply expertise in security design, risk analysis, and testing.

  • Perform technical assessments and verify security requirements.
  • Build cybersecurity into operational environments.
  • Mitigate threats and support RMF authorization activities.
  • Enforce trusted relations and manage system changes.

Basic Qualifications & Opportunities

Multiple levels based on experience (12+ years preferred with Bachelor's/Master's in related field; case-by-case without degree). Expertise in DoD, NIST RMF, and customer policies required. Competitive pay: $131,300 - $237,350. Benefits include PTO, 401K match, flexible schedules, education support, and more. Make a difference in national security with Leidos!

Locations

  • Annapolis Junction, Maryland, United States

Salary

131,300 - 237,350 USD / yearly

Estimated Salary Rangehigh confidence

131,300 - 237,350 USD / yearly

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • RMF Complianceintermediate
  • Vulnerability Assessmentsintermediate
  • Security Policy Enforcementintermediate
  • Configuration Managementintermediate
  • Risk Management Frameworkintermediate
  • System Security Engineeringintermediate
  • NIST Standardsintermediate
  • DoD Security Regulationsintermediate

Required Qualifications

  • Bachelor's or Master's Degree in related field with 12+ years experience (experience)
  • Experience with classified information systems (experience)
  • Knowledge of DoD and NIST RMF standards (experience)
  • Proficiency in security documentation (SSPs, A&A packages) (experience)
  • Case-by-case consideration for candidates without Bachelor's Degree (experience)

Responsibilities

  • Propose, coordinate, implement, and enforce information systems security policies and standards
  • Maintain operational security posture and perform daily security operations
  • Conduct vulnerability/risk assessments and support certification/accreditation
  • Prepare and review System Security Plans (SSPs) and authorization packages
  • Perform technical security assessments and integrate cybersecurity into systems
  • Assess and mitigate threats throughout system lifecycle
  • Manage configuration changes and security impacts

Benefits

  • general: Paid Time Off
  • general: 11 Paid Holidays
  • general: 401K with 6% company match and immediate vesting
  • general: Flexible Schedules
  • general: Discounted Stock Purchase Plans
  • general: Technical Upskilling
  • general: Education and Training Support
  • general: Parental Paid Leave

Target Your Resume for "Information System Security Professionals (ISSO/ISSE) - Careers at Leidos" , Leidos

Get personalized recommendations to optimize your resume specifically for Information System Security Professionals (ISSO/ISSE) - Careers at Leidos. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Information System Security Professionals (ISSO/ISSE) - Careers at Leidos" , Leidos

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

Jobs in Annapolis Junction MDLeidos CareersCyber Security JobsDefense IT HiringUnited States Government ContractorsEngineeringInformation TechnologySecurity

Answer 10 quick questions to check your fit for Information System Security Professionals (ISSO/ISSE) - Careers at Leidos @ Leidos.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.