Information System Security Engineer

Data Intelligence, LLC is seeking a skilled Information Systems Security Engineer (ISSE) to support a top-tier federal client engaged in national security and counterterrorism operations.

This full-time position, based in Vienna, VA, plays a critical role in securing complex IT systems in a high-visibility, mission-driven environment.

The selected candidate will work closely with government and contractor stakeholders to ensure compliance, manage risk, and defend against evolving cyber threats.

Key Responsibilities:System Security Oversight: Ensure the security and integrity of IT systems by evaluating and implementing effective security controls across complex and sensitive environments.

Safeguard national security systems in alignment with government policies and security requirements.Compliance Management: Work with government and contractor teams to ensure compliance with security standards, regulations, and frameworks, including NIST, ISO 27001, and CIS Controls.

Provide guidance on security-related policies and best practices to stakeholders.Incident Response and Management: Lead and coordinate incident response efforts, ensuring rapid identification, containment, and mitigation of cybersecurity threats.

Manage security incidents effectively and support post-event analysis to improve future defense mechanisms.Security Architecture Design: Design and implement secure system architectures that align with mission-critical needs, ensuring the integrity, confidentiality, and availability of sensitive information.

Integrate security controls throughout the system development lifecycle.Risk Management: Conduct risk assessments, threat modeling, and vulnerability management to identify and mitigate potential threats to critical systems.

Provide recommendations for risk reduction and ensure security posture aligns with mission objectives.Cloud Security Expertise: Leverage deep knowledge of cloud security frameworks and controls to safeguard cloud-based infrastructure, ensuring secure deployment and operation within the cloud environment.Secure Software Development Lifecycle: Advocate for and integrate secure software development practices into the software lifecycle.

Ensure security is considered at every phase from design to deployment, and mentor development teams in secure coding practices.Collaboration and Stakeholder Engagement: Work closely with both government and contractor stakeholders to ensure cybersecurity objectives are met.

Foster a collaborative environment to proactively address evolving cyber threats and compliance challenges.Continuous Improvement: Stay current on emerging cyber threats and technologies, ensuring that the security posture remains robust against new and evolving challenges.

Recommend and implement new security tools, processes, and strategies to improve system security.

Required Experience:Minimum of five (5) years of ISSE experienceDemonstrate working in a 24/7 operational environmentDemonstrate expertise in systems security requirements and policyDemonstrate expertise in incident response and managementDemonstrate experience and knowledge with security frameworks and standards such as NIST, ISO 27001, and CIS ControlsDemonstrate experience and knowledge with cloud security frameworks and associated controlsDemonstrate experience and knowledge with systems engineering and principles and practiceDemonstrate experience and knowledge with secure software development lifecycle methodologiesDemonstrate experience and knowledge with cloud security pipeline principles and technologiesDemonstrate experience and knowledge with risk assessments, threat modeling, and vulnerability managementDemonstrate experience and knowledge with integrating security controls into system developmentDemonstrate experience and knowledge with designing and implementing secure system architectures Required Certifications (One or more):None Security Clearance:Top Secret / SCI and willing to sit for a CI Polygraph Why Join Data Intelligence, LLC: Join a mission-driven team where your cybersecurity expertise directly supports U.S.

national security.

At Data Intelligence, LLC, we offer competitive compensation, a collaborative culture, and the opportunity to work alongside top talent in support of our country’s most critical operations.

Data Intelligence, LLC is an Equal Opportunity Employer.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.