The Opportunity:

Everyone knows security needs to be “baked in” to a system architecture—you actually know how to bake it in. You can identify and implement ways to harden systems and reduce their attack surface. What if you could use your cyber skills to lead the design and development of secure systems? We’re looking for a forward-learning cybersecurity thinker who can create solutions for Fortune 250 clients that will withstand even the most advanced cyber threats.

As a lead Enterprise Security Architect at Booz Allen Defy, you’ll support the growth, delivery, and continuous evolution of the company’s threat detection and response capability. This role combines deep technical credibility with the insight, communication, and commercial leadership required to advise complex organizations, lead multidisciplinary teams, shape target-state capabilities, and deliver measurable improvements in detection and response.

The successful candidate will be a broad cybersecurity practitioner with strong depth in detection engineering, endpoint security, security telemetry, log pipelining, data ingestion, and ETL. They will translate client problems into practical architectures, operating models, roadmaps, and implementation plans, serve as a trusted subject matter expert in proposals and client pursuits, and apply sound AI principles to emerging detection and response challenges with appropriate security, governance, and human oversight.

What You’ll Work On:

• Execute the vision, priorities, and delivery standards for the threat detection and response capability, aligned to client risk, business outcomes, and market needs.
• Build and maintain reusable methods, reference architectures, playbooks, accelerators, and points of view across detection engineering, endpoint, telemetry, and response.
• Coach and develop cybersecurity practitioners, technical leads, and emerging consultants and create an environment that values technical rigor, practical delivery, and clear communication.
• Lead or oversee cybersecurity engagements from problem definition through architecture, roadmap, implementation support, and executive readout.
• Assess current-state detection and response capabilities and define target states that improve visibility, triage, investigation, response, resilience, and measurable outcomes.
• Design and review detection engineering approaches, including use-case development, content lifecycle management, detection-as-code, testing, tuning, threat-informed coverage, and operational handoff.
• Develop practical approaches for endpoint security, XDR/SIEM integration, telemetry strategy, log routing, streaming, ingestion, data quality, pipeline resilience, and ETL or data transformation.
• Translate complex technical issues into concise recommendations for executives, business leaders, security practitioners, and engineering teams.
• Facilitate workshops and working sessions that bring together cybersecurity, IT, cloud, application, identity, network, data, operations, and business stakeholders.
• Identify and apply where AI, machine learning, generative AI, and agentic capabilities can improve detection, triage, investigation, threat hunting, engineering productivity, and response execution.

Join us. The world can’t wait.

You Have:

• 10+ years of experience in architecture and transformation, including current-state assessment, target-state architecture, integration patterns, cloud and hybrid environments, operating models, roadmaps, implementation governance, or adoption and change
• 10+ years of experience leading consulting engagements, technical workstreams, or cybersecurity transformation programs for complex organizations
• 10+ years of experience turning ambiguous problems into practical capabilities, repeatable methods, and measurable delivery results
• 5+ years of experience in threat detection and response, including detection strategy, use-case engineering, threat hunting, incident response, case management, SOC operating models, SOAR, XDR/SIEM, or metrics and continuous improvement
• 5+ years of experience in detection engineering, including detection lifecycle, detection-as-code, analytic logic, rule development, testing and validation, tuning, content governance, ATT&CK-informed coverage, or engineering workflows
• 5+ years of experience in endpoint and identity, including EDR/XDR, endpoint telemetry, endpoint controls, identity-aware detection, privileged access, containment and remediation workflows, or endpoint response constraints
• 5+ years of experience in telemetry and data engineering, including logging strategy, source onboarding, log pipelines, routing and forwarding, streaming and batch patterns, ingestion, normalization, enrichment, data quality, ETL, or evidence resilience
• 2+ years of experience in AI for cybersecurity, including AI/ML fundamentals, generative AI, retrieval and grounding, agentic workflows, evaluation, prompt, and model risk, human-in-the-loop design, or responsible automation
• Bachelor’s degree in Cybersecurity, Computer Science, Information Systems, or Engineering

Nice If You Have:

• 10+ years of experience in a professional services, systems integration, advisory, or consulting environment
• 5+ years of experience responding to RFPs and developing client-ready solutions, estimates, delivery plans, and executive presentations
• 5+ years of experience with major security platforms such as Microsoft Sentinel or Defender, Splunk, CrowdStrike, Google Chronicle, Elastic, QRadar, or comparable technologies
• 2+ years of experience with cloud platforms, data platforms, event streaming, security orchestration, infrastructure-as-code, or software engineering practices
• CISSP, GIAC, SABSA, TOGAF, CCSP, Cloud Security, or Vendor-specific Security Certifications

Compensation

At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen’s benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page.

Identity Statement

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud.

Candidate AI Usage Policy

AI is a part of our daily work at Booz Allen, and we are committed to the responsible and ethical use of AI tools. However, we want to ensure a fair candidate process based on your own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) or other tools to assist with responses during interviews (whether in-person or virtual) is prohibited unless permission is explicitly provided.

Work Model
Our people-first culture prioritizes the benefits of collaboration. To support engagement and effective communication, employees working virtually are generally expected to have their cameras on during meetings.

• Remote: If this position is listed as remote, there may still be occasions when you are required to work in person at a Booz Allen or customer facility.
• Hybrid: If this position is listed as hybrid, you will be expected to work from a Booz Allen or customer facility, in alignment with your leadership's expectations and the needs of the role.
• Onsite: If this position is listed as onsite, work will primarily be performed full-time at a customer facility, where employees will collaborate directly with colleagues and customers as required by the role.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.