Sr. Advisory Security Architect with Security Clearance

Overview At FTI, we are united by one common mission: supporting those who protect our nation so they can make the best-informed decisions during critical moments when seconds count. We want you to bring your passion and expertise to contribute to that essential mission. We strive to incorporate our values to create a culture of collaboration and trust, where you can share your ideas and innovations. If you are inspired by making a positive impact through developing secure, mission-focused technology solutions, FTI would appreciate the opportunity to learn more about you. We are seeking an Senior Advisory Security Architect to support one of our United States Navy customers. This individual will play a critical role in designing, engineering, and implementing secure infrastructure environments supporting mission systems and ATO initiatives. Responsibilities * Architect, design, and implement secure infrastructure solutions across Windows, RHEL Linux, virtualization, storage, and networking technologies in classified environments. * Develop cybersecurity and infrastructure architectures from concept through deployment, integrating security controls, systems hardening, and DISA STIG compliance. * Conduct architecture assessments to identify risks, gaps, and mitigation strategies; ensure designs support mission needs, scalability, resilience, and operational readiness. * Lead RMF and ATO-aligned systems engineering activities, including compliant infrastructure design, control implementation, documentation, and remediation. * Design secure network segmentation, access control strategies, virtualization architectures, and system integration approaches. * Implement centralized logging, monitoring, auditing, and SIEM solutions to enhance visibility and security posture. * Support resilience initiatives through backup, recovery, failover, and continuity architecture for mission-critical systems. * Develop technical architecture documentation, infrastructure standards, and repeatable deployment processes. * Collaborate closely with engineering, cybersecurity, ISSO, and mission teams to drive secure, integrated infrastructure solutions and modernization initiatives. * Provide technical leadership during architecture reviews, incident investigations, and complex implementation efforts. * Travel up to 50%, typically in 1-2 week trips. Common destinations include Pt. Mugu, CA. Education/Qualifications Required: * Must be a U.S. Citizen with an active U.S. Dept. of Defense Secret clearance (minimum), must also be TS/SCI eligble. * Ability to travel up to 50%. * BS in IT, Cybersecurity, Computer Science, Information Systems, Data Science, or Software Engineering. * 6+ years of experience in enterprise infrastructure or security architecture within DoD or classified environments. * Demonstrated experience designing secure enterprise infrastructure and supporting RMF/ATO accreditation. * Expertise in secure Windows, RHEL Linux, enterprise virtualization, network segmentation, and infrastructure engineering. * Strong understanding of networking, systems architecture, security integration, and risk mitigation. * Proficiency with DISA STIGs, systems hardening, and security compliance. * Experience designing or integrating SIEM and enterprise monitoring solutions. * Ability to develop technical documentation and independently drive technical decisions. * CompTIA CASP+, CISSP, or equivalent DoD 8140 DCWF 652 Intermediate certification. Preferred: * Experience as a Security Architect, Systems Engineer, Infrastructure Engineer, or Enterprise Architect in DoD environments. * Experience supporting Navy mission systems, classified enclaves, or enterprise mission infrastructure. * Familiarity with OT, weapon systems, proprietary software integration, and RDT&E network environments. * Experience with VMware, Hyper‑V, Nutanix, or similar enterprise virtualization platforms. * Experience leading greenfield infrastructure deployments. * GIAC GDSA, GICSP, ISC2 ISSAP, or other DoD 8140 DCWF 652 Advanced certification. * Expertise in Zero Trust architecture design and implementation for DoD agencies. #LI-EB1 #LI-Onsite