What are the responsibilities and job description for the Information Systems Security Engineer (ISSE) (TS/SCI FSP) position at Sebastian Tech Solutions?
Location : Annapolis Junction, MD
Clearance Requirement : TS / SCI Full Scope Poly
Position Type : Full-time
Job 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 solutions .
- Develop and enforce trusted relationships among external systems and architectures.
- Conduct risk assessments and threat mitigation strategies throughout the program life cycle .
- Contribute 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 cycle
- Cross-domain solutions and cryptographic implementations
- Authentication and authorization mechanisms
- Risk management and incident handling
- Intrusion detection and response
- Configuration control, change management, and auditing
- IA principles (confidentiality, integrity, non-repudiation, availability, and access control)
- Security testing and validation
- Support security authorization activities in compliance with NSA / CSS NISCAP, DoD RMF, NIST RMF , and NSA / CSS business processes for security engineering .
Required Qualifications :
Preferred Qualifications :
Why Join Us?
If you meet the qualifications and are looking for an exciting challenge, apply today!
