Information Systems Security Engineer (ISSE) - (TS/SCI ...
Sebastian Tech Solutions - Annapolis Junction, MD
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Location: Annapolis Junction, MDClearance Requirement: TS/SCI Full Scope PolyPosition Type: Full-timeJob Overview:We are seeking a highly skilled Information Systems Security Engineer (ISSE) to join our team. The ISSE will be responsible for conducting technical security assessments, validating system security requirements, and designing robust security architectures. The ideal candidate will have extensive experience in information assurance (IA), risk management, network security, cryptography, and cloud computing. This role requires a deep understanding of NSA/CSS, DoD Risk Management Framework (RMF), and NIST RMF compliance processes.Key Responsibilities:Perform or review technical security assessments of computing environments to identify vulnerabilities, ensure compliance with IA standards, and recommend mitigation strategies.Validate and verify system security requirements and define security architectures.Design, develop, implement, and integrate security solutions for networking, computing, and enclave environments, including those with multiple classification levels.Embed IA controls into systems deployed to operational environments.Collaborate with system architects and developers to implement appropriate security functionality aligned with Agency security policies and enterprise solutionsDevelop and enforce trusted relationships among external systems and architectures.Conduct risk assessments and threat mitigation strategies throughout the program life cycleContribute to security planni-ng, risk management, and compliance efforts for systems and networks.Review certification and accreditation (C&A) documentation, ensuring completeness and compliance.Apply expertise in system security engineering, including areas such as:Security design and engineering life cycleCross-domain solutions and cryptographic implementationsAuthentication and authorization mechanismsRisk management and incident handlingIntrusion detection and responseConfiguration control, change management, and auditingIA principles (confidentiality, integrity, non-repudiation, availability, and access control)Security testing and validationSupport security authorization activities in compliance with NSA/CSS NISCAP, DoD RMF, NIST RMF, and NSA/CSS business processes for security engineeringRequired Qualifications:20+ years of experience as an ISSE supporting programs of similar scope and complexity.Bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or a related field from an accredited institution.A Master's degree in a related field may substitute for 2 years of experience (reducing requirement to 18 years).Four (4) additional years of ISSE experience can substitute for a bachelor's degree.DoD 8570 IASAE Level 3 compliance is required, including both:CISSP (Certified Information Systems Security Professional)ISSEP (Information Systems Security Engineering Professional)Strong experience with manual review of network diagrams, network device configurations, and VPN termination pointsWorking knowledge of software TLS security and security assessment frameworksAbility to conduct RMF reviews for unclassified/classified networks, providing countermeasures for secure communicationsFamiliarity with security standards and frameworks (NIST, DoD, NSA, etc.)Expertise in crypto, networking, and cloud computing securityExperience writing security assessment reports, technical documentation, and administrative reportsStrong leadership, analytical, and problem-solving skillsPreferred Qualifications:Experience with cloud security, zero-trust architecture, and container securityPrior work within NSA, DoD, or other federal security-focused organizationsHands-on experience in penetration testing, threat hunting, or forensic analysisStrong knowledge of intrusion detection systems (IDS), firewalls, SIEM tools, and endpoint security solutionsWhy Join Us?Work on mission-critical projects that enhance national security.Opportunity to collaborate with top cybersecurity experts.Competitive salary, benefits, and career growth opportunities.If you meet the qualifications and are looking for an exciting challenge, apply today!
Created: 2025-03-03