Information Systems Security Engineer

OverviewJob SummaryGalapagos Federal Systems LLC is seeking a highly skilled and proactive Information Systems Security Engineer (ISSE) to support the United States Space Force (USSF). This role offers a unique opportunity to contribute directly to national security and the advancement of mission-critical space operations.The ISSE supports cybersecurity efforts across classified environments, ensuring the secure development, integration, and sustainment of advanced test and training systems essential to space mission readiness.The ideal candidate brings a strong understanding of DoD and Intelligence Community (IC) cybersecurity standards, solid technical expertise, and effective communication skills. Success in this role requires the ability to operate in a dynamic, high-tempo, mission-focused environment while collaborating across technical and operational teams.Key ResponsibilitiesThe Information Systems Security Engineer will:- Perform risk identification and assessment activities in support of system and enclave change management processes- Develop and oversee information system security policies, procedures, and implementation guidelines- Support and ensure availability of resources for Cyber Security Service Provider (CSSP) functions, including vulnerability assessments, remediation, and endpoint protection- Conduct and coordinate security testing and evaluations using intrusion detection, monitoring, and assessment tools to validate system security posture- Identify, document, and track security vulnerabilities within POA&Ms, SARs, and RARs, ensuring proper reporting and escalation of critical issues to the Authorizing Official (AO)/Designated Approving Official (DAO)- Support continuous monitoring activities and ensure systems maintain compliance with RMF security controls- Develop and execute security test plans and procedures to validate system compliance and performance requirements- Support Assessment and Authorization (A&A) activities, including development and maintenance of ATO and IATT packages- Author and maintain System Security Plans (SSPs) and other required cybersecurity documentation- Coordinate with stakeholders, including AOs, SCAs, and configuration management authorities, to support system security and accreditation effortsRequirementsSkills and ExperienceThe Information Systems Security Engineer must have:- Active Top Secret/SCI clearance- 5+ years of cybersecurity experience supporting DoD and/or Intelligence Community (IC) environments- Experience implementing and supporting the Risk Management Framework (RMF) for mission-critical systems- Proven ability to implement IT security controls to ensure confidentiality, integrity, and availability of systems and data- Strong experience in vulnerability management, including POA&M development, tracking, and remediation coordination- Experience managing Security Control Traceability Matrices (SCTMs) and working with Authorizing Officials (AOs) and Security Control Assessors (SCAs)- Demonstrated experience supporting Assessment & Authorization (A&A) processes, including development of ATO and IATT packages- Experience developing and executing security testing and validation procedures- Experience authoring and maintaining System Security Plans (SSPs) and related cybersecurity documentation- Strong analytical and systems engineering skills, with the ability to assess architectures and recommend security improvements- Ability to effectively communicate cybersecurity concepts, including developing documentation and delivering technical briefings to stakeholders- Strong organizational and multitasking skills, with the ability to manage multiple priorities in a dynamic environment- Ability to work independently and collaboratively within cross-functional and distributed teams- Commitment to maintaining DoD c bersecurity certifications and staying current with evolving security requirementsEducation and CertificationsThe Information Systems Security Engineer must meet the following:Required- BS degree in Information Technology, Cybersecurity, Data Science, Information Systems, or Computer Science, from an ABET accredited or CAE designated institution- One or more of the following Security+, CISSO, CISSP, CISSP-ISSMP, or equivalent military training/certificationPreferred- One or more of the following : CCSP, CGRC/CAP, CASP+, Cloud+, SSCP, GSEC, CISM, CISSO, CISSP, CISSP-ISSMP, GCIA, GCSA, GSLC, CGIH, or FITSP-M-or equivalent military training/certificationBenefits- Medical, dental, vision, disability, and life insurance- Flexible Spending Accounts- 401(k)- PTO- Paid Paternal leave- Tuition reimbursement- Paid federal holidaysSecurity ClearanceMust be a U.S. Citizen. A high-level Department of Defense active security clearance is/may be required. Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to government information.Physical RequirementsWork may involve sitting or standing for extended periods of time and typing and reading from a computer screen. The candidate must have enough mobility, including bending, reaching, and kneeling, to complete daily duties in a prompt and efficient manner and that may include lifting to thirty pounds, as pany SummaryHeadquartered in Hawaii, Galapagos Federal Systems, LLC, is an SBA-Certified NHO-owned 8(a) Small Business specializing in global information technology solutions. We deliver professional services in IT Design & Installation, Cybersecurity Engineering & Support, Application Integration & Development, Software & Hardware Engineering, Network & Systems Management, Information Systems Security, and Business Management Services.Leveraging over 30 years of experience supporting both federal and commercial markets, our team brings innovative expertise to complex IT challenges, delivering solutions across the globe.Galapagos Federal Systems, LLC is an equal opportunity employer.Our service commitment is simple:

Created: 2026-05-02