Lead IC Security Engineer Security Clearance

Position: Lead IC Security Engineer with Security Clearance
At MITRE, your passion fuels work that impacts our nation and improves lives. This is where your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We're a nonprofit engineering, applied research, and advanced technology organization working in the public interest. With objectivity and integrity at our core, we lead federally funded research and development centers for U.S. government agencies - collaborating with industry and academia to deliver integrated, high-impact solutions that advance our nation's health, security, and prosperity.

Our people tackle the toughest technical challenges, supported by competitive benefits, meaningful career development, and a culture of innovation, collaboration, and technical excellence. Choose MITRE for a career with purpose - and help shape the future. The Mission Operations Department supports national intelligence mission centers by strengthening warning, collection, analysis, enterprise coordination, and strategy execution. The department helps senior government sponsors identify seams across mission areas, reduce fragmentation, and build integrated responses to complex national security challenges.

It provides the policy, analytic, operational, cybersecurity, and technical depth required to help mission partners work as a unified enterprise advancing intelligence integration and national security outcomes.

Position Summary:

MITRE's National Intelligence Division is seeking a Lead IC Security Engineer to provide hands-on security engineering and authorization support for a prototype geospatial intelligence and identity intelligence platform composed of several integrated systems for an Intelligence Community sponsor. This full-time role will oversee the implementation of security controls, secure configurations, and authorization documentation needed for the prototype to meet ICD-503 requirements and NIST SP 800-53 Rev.

5 controls and to support an Authority to Operate (ATO) submission. The successful candidate will serve as the security engineering focal point for the prototype, reviewing and documenting engineering and development changes, assessing their security impact, and ensuring that system design, implementation, and operation remain aligned with the approved security baseline. The engineer will work closely with the cloud infrastructure engineer, who will lead cloud environment setup and workflow implementation, to translate security requirements into secure cloud configurations, pipeline controls, automated checks, logging, evidence collection, and repeatable deployment practices.

Roles & Responsibilities :
* Lead the security engineering approach for the prototype platform, mapping system architecture, components, services, and configurations to applicable ICD-503 requirements, NIST SP 800-53 Rev. 5 controls, and sponsor security expectations.

* Oversee implementation, validation, and documentation of technical, operational, and management security controls across cloud infrastructure, applications, interfaces, data services, and supporting platform components.

* Develop and maintain the security documentation and evidence package supporting the ATO submission, including control implementation statements, architecture and data-flow artifacts, configuration evidence, test results, risk decisions, remediation status, and other sponsor-required authorization artifacts.

* Review and document system, software, infrastructure, and configuration changes; assess security and authorization impacts; maintain traceability to requirements and controls; and help keep the system security baseline current as the prototype evolves.

* Partner directly with the cloud infrastructure engineer responsible for cloud setup and workflows to implement secure infrastructure configurations, pipeline security gates, automated security testing, vulnerability and dependency scanning, secrets handling, audit logging, and repeatable compliance evidence collection.

* Collaborate with software developers, systems engineers, architects, data engineers, and test teams to integrate security into design, development, integration, test, deployment, and operations; identify findings and technical risks; and drive practical remediation actions.

* Coordinate with sponsor security and authorization stakeholders to prepare for control assessments, respond to questions and findings, track corrective actions to closure, and maintain an authorization-ready security posture throughout prototype development and transition.

Basic Qualifications:

* Typically requires a minimum of 8 years of related experience with a Bachelor's degree; or 6 years with a Master's degree; or 3 years with a PhD; or an equivalent combination of education and relevant experience.

* Bachelor's degree in Cybersecurity, Computer Science, Computer Engineering, Systems Engineering, Information Systems, Engineering, or a related technical field, or equivalent combination of education and…