Freelance Senior Security Architect - Security Hub | Remote

Company Description ThreatXIntel is a growing Cybersecurity, IT Staffing, and Consulting company delivering end-to-end technology and security solutions. We are hiring for our corporate client. ThreatXIntel is the official hiring partner for this requirement About the Role We are seeking an experienced Senior Security Architect to lead the architecture and design of an enterprise-scale Security Hub platform for a large, highly regulated organization. This is a part-time remote freelance opportunity for a senior cybersecurity leader with deep expertise in enterprise security architecture, cloud security, governance, SIEM/SOAR, and security operations. The ideal candidate has extensive experience designing centralized security platforms, implementing security control frameworks, and driving security transformation initiatives across complex enterprise environments. Key Responsibilities Security Hub Architecture Define the end-to-end Security Hub architecture aligned with enterprise security and governance requirements. Design a centralized Security Hub supporting approximately 60 enterprise security controls. Develop logical, physical, deployment, and integration architecture. Define scalability, resiliency, disaster recovery, and high availability architecture. Security Controls & Detection Design triple-mode detection using: Real-time security events Observability metrics Periodic compliance and security scans Translate enterprise security requirements into enforceable technical controls. Design compliance monitoring, evidence generation, and audit-ready reporting. Enterprise Integration Design integration with Ranger OpenShift APIs Kafka LGTM Stack StorageGRID DataHub Keycloak Vault / Venafi ServiceNow Enterprise observability platforms Develop event-driven integration patterns, telemetry ingestion, normalization, correlation, and orchestration workflows. Automation & AI Enablement Design automated remediation workflows. Implement approval-based enforcement processes. Define AI-assisted security triage, root cause analysis, prioritization, and recommendations. Establish reusable security architecture patterns and accelerator frameworks. Governance Participate in architecture reviews and governance boards. Produce architecture documentation and implementation standards. Ensure compliance with audit, risk, and regulatory requirements. Support operational readiness and transition to production. Required Experience 10+ years of cybersecurity or security architecture experience 5+ years designing enterprise security platforms Experience with large-scale security transformation initiatives Strong experience in security governance and compliance platforms Technical Skills Enterprise Security Architecture OpenShift / Kubernetes AWS / Azure / GCP Security SIEM & SOAR Platforms Security Operations (SecOps) Vulnerability Management Identity & Access Management (IAM) Kafka Event-Driven Architecture API Integration ServiceNow Enterprise Observability Security Control Frameworks Security Frameworks NIST Cybersecurity Framework NIST 800-53 CIS Controls ISO 27001 Zero Trust Architecture Security Operations & Incident Response Preferred Experience Security Hub architecture SOC, SIEM, CNAPP or CSPM platforms ServiceNow Security Operations Policy-as-Code AI / GenAI in Security Operations Financial Services or highly regulated industries Engagement Details Employment Type: Freelance / Contract Work Mode: Remote Availability: Part-Time If you're a seasoned Security Architect passionate about designing enterprise-scale security platforms and enabling secure digital transformation, we'd love to hear from you. .