Security Engineer (TOP SECRET Clearance Required)
Summary
| Title: | Security Engineer (TOP SECRET Clearance Required) |
|---|---|
| ID: | 1198 |
| Work Location: | Chantilly, VA |
| Clearance Required: | TS/SCI |
Description
Senior Security Engineer
Clearance: Top Secret required (U.S. citizenship required)
Education: Bachelor's degree required
Experience: Minimum 8 years
ABOUT THE ROLE
We are seeking a Senior Security Engineer to secure enterprise applications, cloud environments, and critical infrastructure. This role involves advancing the organization's security posture through proactive monitoring, threat detection, incident response, and continuous improvement initiatives. The ideal candidate will lead security engineering efforts across multiple systems, design and implement security controls, support cloud-based platforms, and provide technical mentorship while ensuring compliance with security policies and organizational cybersecurity requirements.
KEY RESPONSIBILITIES
• Secure applications, cloud platforms, networks, and enterprise infrastructure.
• Lead incident response, cyber resiliency, vulnerability management, and threat detection efforts.
• Design and implement security controls and support cloud-based platforms such as AWS, Azure, or Google Cloud.
• Use security monitoring, logging, SIEM, and alerting tools effectively.
• Develop security policies, procedures, and technical documentation.
• Provide technical mentorship and ensure alignment with defense-in-depth principles and security policies.
• Engage in multi-model and multi-modality orchestration, including advanced AI implementations and data architecture.
• Manage enterprise infrastructure and cross-domain solutions, including air-gapped and hybrid environments.
• Develop and integrate applications using modern programming languages and frameworks.
REQUIRED QUALIFICATIONS
• U.S. citizen with an active Top Secret clearance.
• Bachelor's degree.
• Minimum 8 years of experience securing applications, cloud platforms, networks, and enterprise infrastructure.
• Experience with cloud technologies such as AWS, Azure, or Google Cloud.
• Proficiency with security monitoring, logging, SIEM, and alerting tools.
• Strong understanding of network security, encryption, authentication, and access control technologies.
• Experience developing security policies, procedures, and technical documentation.
• Strong analytical, troubleshooting, and communication skills.
• Experience with in-house, custom-developed applications and advanced AI, GenAI, and multi-model engineering.
• Data architecture expertise, including vector, graph, and multi-database orchestration.
• Experience with air-gapped, hybrid, and on-premise operational environments.
• Application development and integration knowledge using TypeScript, React, Python, FastAPI, and related technologies.
PREFERRED QUALIFICATIONS
• Master's degree in Cybersecurity, Information Assurance, or a related field.
• CISSP, Security+, CCSP, CISM, GIAC, AWS Security Specialty, Azure Security Engineer, or similar certifications.
• Experience supporting government, defense, intelligence, or highly regulated environments.
• Knowledge of Zero Trust Architecture, NIST frameworks, RMF, and compliance requirements.
• Experience with DevSecOps, container security, and Infrastructure as Code (IaC) security practices.
• Experience managing COMSEC resources or cryptographic key management systems.
• Familiarity with security automation, SOAR platforms, and advanced threat hunting techniques.
EQUAL OPPORTUNITY EMPLOYER
i3, LLC is an Equal Opportunity Employer and a federal contractor. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, protected veteran status, genetic information, or any other characteristic protected by applicable federal, state, or local law.
As a federal contractor, i3, LLC takes affirmative action to employ and advance in employment qualified individuals with disabilities and protected veterans, in accordance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans' Readjustment Assistance Act (VEVRAA).
Applicants who need a reasonable accommodation at any point in the application or hiring process may contact Tammy Gracia at tgracia@i3its.com.
Clearance: Top Secret required (U.S. citizenship required)
Education: Bachelor's degree required
Experience: Minimum 8 years
ABOUT THE ROLE
We are seeking a Senior Security Engineer to secure enterprise applications, cloud environments, and critical infrastructure. This role involves advancing the organization's security posture through proactive monitoring, threat detection, incident response, and continuous improvement initiatives. The ideal candidate will lead security engineering efforts across multiple systems, design and implement security controls, support cloud-based platforms, and provide technical mentorship while ensuring compliance with security policies and organizational cybersecurity requirements.
KEY RESPONSIBILITIES
• Secure applications, cloud platforms, networks, and enterprise infrastructure.
• Lead incident response, cyber resiliency, vulnerability management, and threat detection efforts.
• Design and implement security controls and support cloud-based platforms such as AWS, Azure, or Google Cloud.
• Use security monitoring, logging, SIEM, and alerting tools effectively.
• Develop security policies, procedures, and technical documentation.
• Provide technical mentorship and ensure alignment with defense-in-depth principles and security policies.
• Engage in multi-model and multi-modality orchestration, including advanced AI implementations and data architecture.
• Manage enterprise infrastructure and cross-domain solutions, including air-gapped and hybrid environments.
• Develop and integrate applications using modern programming languages and frameworks.
REQUIRED QUALIFICATIONS
• U.S. citizen with an active Top Secret clearance.
• Bachelor's degree.
• Minimum 8 years of experience securing applications, cloud platforms, networks, and enterprise infrastructure.
• Experience with cloud technologies such as AWS, Azure, or Google Cloud.
• Proficiency with security monitoring, logging, SIEM, and alerting tools.
• Strong understanding of network security, encryption, authentication, and access control technologies.
• Experience developing security policies, procedures, and technical documentation.
• Strong analytical, troubleshooting, and communication skills.
• Experience with in-house, custom-developed applications and advanced AI, GenAI, and multi-model engineering.
• Data architecture expertise, including vector, graph, and multi-database orchestration.
• Experience with air-gapped, hybrid, and on-premise operational environments.
• Application development and integration knowledge using TypeScript, React, Python, FastAPI, and related technologies.
PREFERRED QUALIFICATIONS
• Master's degree in Cybersecurity, Information Assurance, or a related field.
• CISSP, Security+, CCSP, CISM, GIAC, AWS Security Specialty, Azure Security Engineer, or similar certifications.
• Experience supporting government, defense, intelligence, or highly regulated environments.
• Knowledge of Zero Trust Architecture, NIST frameworks, RMF, and compliance requirements.
• Experience with DevSecOps, container security, and Infrastructure as Code (IaC) security practices.
• Experience managing COMSEC resources or cryptographic key management systems.
• Familiarity with security automation, SOAR platforms, and advanced threat hunting techniques.
EQUAL OPPORTUNITY EMPLOYER
i3, LLC is an Equal Opportunity Employer and a federal contractor. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, and gender identity), national origin, age, disability, protected veteran status, genetic information, or any other characteristic protected by applicable federal, state, or local law.
As a federal contractor, i3, LLC takes affirmative action to employ and advance in employment qualified individuals with disabilities and protected veterans, in accordance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans' Readjustment Assistance Act (VEVRAA).
Applicants who need a reasonable accommodation at any point in the application or hiring process may contact Tammy Gracia at tgracia@i3its.com.
