Information Systems Security Officer (ISSO)

Information Systems Security Officer (ISSO) Location: Fort Meade, MD Clearance Required: TS/SCI with Full Scope Polygraph Required for Consideration Employment Type: Full-TimeAbout the OpportunitySNS One, Inc., a Service-Disabled Veteran-Owned Small Business (SDVOSB), is seeking an Information Systems Security Officer (ISSO) to support mission-critical cybersecurity and information assurance efforts within a highly secure government environment. This role supports the implementation and enforcement of information systems security policies, standards, and methodologies across classified systems and networks.The ideal candidate will have experience supporting RMF activities, maintaining system security posture, assisting with accreditation documentation, and supporting day-to-day information assurance operations in compliance with DoD and NIST standards.ResponsibilitiesSupport senior ISSOs in implementing and enforcing information systems security policies, standards, and methodologiesAssist with maintaining the operational security posture of systems and environments processing classified informationSupport day-to-day security operations for information systems and enclavesAssist with vulnerability and risk assessment activities related to certification and accreditation effortsHelp evaluate security solutions to ensure compliance with classified processing requirementsSupport Configuration Management (CM) activities for security software, hardware, and firmwareMaintain records for workstations, servers, routers, firewalls, switches, and related network devices including system upgrades and changesAssist with security impact analysis for system changes and modificationsPrepare and maintain security documentation including: System Security Plans (SSPs)Risk Assessment ReportsCertification & Accreditation (C&A) PackagesSystem Requirements Traceability Matrices (SRTMs)Support security authorization activities in accordance with the NIST Risk Management Framework (RMF)Ensure compliance with established information assurance and cybersecurity requirementsRequired QualificationsActive TS/SCI with Full Scope Polygraph required for considerationTwo (2) years of experience as an Information Systems Security Officer (ISSO/ISO) on programs/contracts of similar scope, type, and complexityBachelor’s degree in Computer Science or related discipline from an accredited college or university Four (4) years of additional ISSO/ISO experience may be substituted in lieu of a degreeDoD 8570 Compliance with IAT Level I certification or higher requiredUnderstanding of: NIST RMFInformation Assurance principlesConfiguration ManagementSecurity compliance and accreditation processesClassified systems security requirementsPreferred SkillsExperience supporting government or DoD environmentsFamiliarity with vulnerability management and security auditing toolsStrong documentation and organizational skillsAbility to work independently and within a team environmentExcellent communication and problem-solving skillsWhy SNS One?At SNS One, Inc., we support national security missions through innovative cybersecurity, systems engineering, and IT solutions. We invest in our employees by offering competitive compensation, strong benefits, professional growth opportunities, and meaningful mission-focused work.At SNS One, Inc., we are committed to providing an environment of mutual respect where equal employment opportunities are available to all applicants and teammates without regard to race, color, religion, sex, pregnancy (including childbirth, lactation and related medical conditions), national origin, age, physical and mental disability, marital status, sexual orientation, gender identity, gender expression, genetic information (including characteristics and testing), military and veteran status, and any other characteristic protected by applicable law. SNS One, Inc. believes that diversity and inclusion among our teammates is critical to our success as a company, and we seek to recruit, develop and retain the most talented people from a diverse candidate pool.

At SNS One, Inc., we are committed to providing an environment of mutual respect where equal employment opportunities are available to all applicants and teammates without regard to race, color, religion, sex, pregnancy (including childbirth, lactation and related medical conditions), national origin, age, physical and mental disability, marital status, sexual orientation, gender identity, gender expression, genetic information (including characteristics and testing), military and veteran status, and any other characteristic protected by applicable law. SNS One, Inc. believes that diversity and inclusion among our teammates is critical to our success as a company, and we seek to recruit, develop and retain the most talented people from a diverse candidate pool.

• Active TS/SCI with Full Scope Polygraph required for consideration
• Two (2) years of experience as an Information Systems Security Officer (ISSO/ISO) on programs/contracts of similar scope, type, and complexity
• Bachelor’s degree in Computer Science or related discipline from an accredited college or university
• Four (4) years of additional ISSO/ISO experience may be substituted in lieu of a degree
• DoD 8570 Compliance with IAT Level I certification or higher required
• Understanding of:
• NIST RMF
• Information Assurance principles
• Configuration Management
• Security compliance and accreditation processes
• Classified systems security requirements

Preferred Skills

• Experience supporting government or DoD environments
• Familiarity with vulnerability management and security auditing tools
• Strong documentation and organizational skills
• Ability to work independently and within a team environment
• Excellent communication and problem-solving skills

At SNS One, Inc., we support national security missions through innovative cybersecurity, systems engineering, and IT solutions. We invest in our employees by offering competitive compensation, strong benefits, professional growth opportunities, and meaningful mission-focused work.