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Senior Information Systems Security Officer ISSO - Careers at Leidos

Leidos

Senior Information Systems Security Officer ISSO - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Join Leidos as a Senior Information Systems Security Officer (ISSO)

Leidos is seeking a Senior ISSO for our Intelligence Sector, Cyber & Analytics Business Area (CABA) in Annapolis Junction, MD. This multi-year, high-impact program supports cutting-edge large-scale collection systems critical to national security. Work independently, innovate with emerging technologies, and contribute to mission-critical cyber defense.

Key Responsibilities

  • Enhance security posture through information assurance initiatives and policy enforcement.
  • Oversee security operations, manage daily aspects, evaluate classified processing solutions, and perform vulnerability/risk assessments.
  • Administer configuration management for security components and ensure control compliance.
  • Develop SSPs, Risk Assessment Reports, C&A packages, and SRTMs.
  • Drive compliance with NISCAP and DoD RMF processes.
  • Provide expertise in security policies, support implementation, and collaborate for resilience.
  • Assess processes, identify vulnerabilities, and implement proactive enhancements.

Basic Qualifications

  • Bachelor’s in Computer Science, IA, or related + 12+ years experience (or 16+ years without degree).
  • 7+ years ISSO experience in IC/DoD programs of similar scope.
  • Experience with customer Info Security tool suite.
  • DoD 8570 IAM II or IAT III (CASP, CISSP, Associate).
  • Active TS/SCI with Polygraph.

Why Leidos?

Enjoy competitive pay ($131,300 - $237,350), 15k sign-on bonus, 4+ weeks PTO, 11 holidays, 401K with 6% match, flexible schedules, education support, and more. Be part of a team at the forefront of Security Engineering, CNO, SIGINT, and Cryptographic Key Management. If you're restless and ready to innovate, your greatest work starts here!

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

  • Information Assuranceintermediate
  • Risk Management Framework (RMF)intermediate
  • Vulnerability Assessmentsintermediate
  • Configuration Managementintermediate
  • Security Documentationintermediate
  • DoD 8570 Complianceintermediate
  • NISCAP Processintermediate

Required Qualifications

  • Bachelor’s degree in Computer Science, Information Assurance, or related field + 12+ years experience (or equivalent) (experience)
  • 7+ years ISSO experience in IC or DoD programs (experience)
  • Experience with customer Info Security tool suite (experience)
  • DoD 8570 IAM Level II or IAT Level III (CASP, CISSP, or Associate) (experience)
  • Active TS/SCI with Polygraph clearance (experience)

Responsibilities

  • Enhance security posture by enforcing policies, standards, and methodologies
  • Oversee daily security operations, evaluate solutions, and conduct vulnerability/risk assessments
  • Manage configuration of security software, hardware, firmware, and assess change impacts
  • Develop and maintain SSPs, Risk Assessment Reports, C&A packages, and SRTMs
  • Ensure compliance with NISCAP and DoD RMF authorization activities
  • Provide technical expertise in security policies and collaborate with stakeholders
  • Drive continuous improvement by identifying vulnerabilities and implementing solutions

Benefits

  • general: 15k sign-on bonus
  • general: 4+ weeks 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, Education and Training Support
  • general: Parental Paid Leave

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Leidos logo

Senior Information Systems Security Officer ISSO - Careers at Leidos

Leidos

Senior Information Systems Security Officer ISSO - Careers at Leidos

full-timePosted: Feb 3, 2026

Job Description

Join Leidos as a Senior Information Systems Security Officer (ISSO)

Leidos is seeking a Senior ISSO for our Intelligence Sector, Cyber & Analytics Business Area (CABA) in Annapolis Junction, MD. This multi-year, high-impact program supports cutting-edge large-scale collection systems critical to national security. Work independently, innovate with emerging technologies, and contribute to mission-critical cyber defense.

Key Responsibilities

  • Enhance security posture through information assurance initiatives and policy enforcement.
  • Oversee security operations, manage daily aspects, evaluate classified processing solutions, and perform vulnerability/risk assessments.
  • Administer configuration management for security components and ensure control compliance.
  • Develop SSPs, Risk Assessment Reports, C&A packages, and SRTMs.
  • Drive compliance with NISCAP and DoD RMF processes.
  • Provide expertise in security policies, support implementation, and collaborate for resilience.
  • Assess processes, identify vulnerabilities, and implement proactive enhancements.

Basic Qualifications

  • Bachelor’s in Computer Science, IA, or related + 12+ years experience (or 16+ years without degree).
  • 7+ years ISSO experience in IC/DoD programs of similar scope.
  • Experience with customer Info Security tool suite.
  • DoD 8570 IAM II or IAT III (CASP, CISSP, Associate).
  • Active TS/SCI with Polygraph.

Why Leidos?

Enjoy competitive pay ($131,300 - $237,350), 15k sign-on bonus, 4+ weeks PTO, 11 holidays, 401K with 6% match, flexible schedules, education support, and more. Be part of a team at the forefront of Security Engineering, CNO, SIGINT, and Cryptographic Key Management. If you're restless and ready to innovate, your greatest work starts here!

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

  • Information Assuranceintermediate
  • Risk Management Framework (RMF)intermediate
  • Vulnerability Assessmentsintermediate
  • Configuration Managementintermediate
  • Security Documentationintermediate
  • DoD 8570 Complianceintermediate
  • NISCAP Processintermediate

Required Qualifications

  • Bachelor’s degree in Computer Science, Information Assurance, or related field + 12+ years experience (or equivalent) (experience)
  • 7+ years ISSO experience in IC or DoD programs (experience)
  • Experience with customer Info Security tool suite (experience)
  • DoD 8570 IAM Level II or IAT Level III (CASP, CISSP, or Associate) (experience)
  • Active TS/SCI with Polygraph clearance (experience)

Responsibilities

  • Enhance security posture by enforcing policies, standards, and methodologies
  • Oversee daily security operations, evaluate solutions, and conduct vulnerability/risk assessments
  • Manage configuration of security software, hardware, firmware, and assess change impacts
  • Develop and maintain SSPs, Risk Assessment Reports, C&A packages, and SRTMs
  • Ensure compliance with NISCAP and DoD RMF authorization activities
  • Provide technical expertise in security policies and collaborate with stakeholders
  • Drive continuous improvement by identifying vulnerabilities and implementing solutions

Benefits

  • general: 15k sign-on bonus
  • general: 4+ weeks 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, Education and Training Support
  • general: Parental Paid Leave

Target Your Resume for "Senior Information Systems Security Officer ISSO - Careers at Leidos" , Leidos

Get personalized recommendations to optimize your resume specifically for Senior Information Systems Security Officer ISSO - Careers at Leidos. Takes only 15 seconds!

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

Check Your ATS Score for "Senior Information Systems Security Officer ISSO - 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 CareersCybersecurity Jobs United StatesDoD ISSOTS/SCI ClearanceEngineeringInformation TechnologySecurity

Answer 10 quick questions to check your fit for Senior Information Systems Security Officer ISSO - Careers at Leidos @ Leidos.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.