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# SR Computer Scientist - Information System Security Engineer (IS

- **Company:** DarkStar Intelligence, LLC
- **Location:** Reston, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Software Applications, Data Security, Data Sharing, Information Security Management, Information Systems Security Architecture Professional, Secure Coding, Software Engineering, Cybercrime, Data Management, Vulnerability Analysis
- **Published:** October 15, 2026
- **Apply:** https://www.clearancejobs.com/jobs/9241967/sr-computer-scientist-information-system-security-engineer-is

## About the Role

The Senior Computer Scientist (ISSE) is the primary cybersecurity authority for tools and CI/HUMINT data-management systems, ensuring security is designed, implemented, assessed, and sustained throughout the system lifecycle.

Position level and location: Senior, one base full-time equivalent; on-site in Reston, Virginia. The position supports a 40-hour workweek, with schedules subject to mission requirements., Extensive experience with Risk Management Framework (RMF) and ATO processes.

 - Demonstrated expertise implementing security controls, conducting risk assessments, and performing vulnerability assessments.

 - Knowledge of NIST, DoD, DIA, and Intelligence Community cybersecurity frameworks and policies.

 - Experience securing intelligence systems, software applications, and data-management environments.

 - Knowledge of cross-domain security architectures, system access controls, and secure data-sharing practices.

 - Ability to work across technical and operational teams, translate security requirements into implementable controls, and balance security with mission needs.

 - Strong analytical skills, attention to detail, and current awareness of evolving cyber threats and security technologies.

Preferred qualifications

 - Relevant cybersecurity certification, such as CISSP, CAP, or CISM.

 - Experience supporting CI/HUMINT systems, secure software development, and cross-domain data-transfer solutions.

 - Experience working with DIA security certification and accreditation processes.

Additional Details

Travel: May include CONUS/OCONUS travel in support of training and partner engagements

Work Environment: On-site in a secure facility; instruction and coordination conducted in classified environments

Security Note

All applicants must be U.S. citizens and eligible to obtain and maintain a U.S. government security clearance.

## Description

Ensure UMM tools and data-management systems comply with DIA security requirements and applicable federal security standards.

 - Integrate security controls into software design, development, deployment, and sustainment activities.

 - Conduct security assessments, risk analyses, vulnerability assessments, and continuous compliance monitoring.

 - Support Authority to Operate (ATO) activities, including required security documentation and certification/accreditation coordination.

 - Implement security controls in accordance with NIST and DoD standards and applicable DIA frameworks.

 - Define and coordinate security requirements for cross-domain data transfers with Service and Combatant Command tool administrators.

 - Support secure data-sharing and system-access requirements.

 - Coordinate with DIA CIO on security certification, accreditation, and security-update activities.

 - Advise the Technology Project Manager on security requirements and support Software Engineers in applying secure coding practices.

 - Ensure foreign-disclosure requirements and controls are incorporated into system designs and data-sharing processes.

 - Maintain security controls and standards during system sustainment and support revisions to data-transfer security requirements.