Fortinet Technical Design Authority (TDA) We are seeking an experienced Fortinet Technical Design Authority (TDA) to lead the architecture, governance, and strategic delivery of enterprise-scale Fortinet security solutions across complex multi-site and multi-tenant environments. Key Responsibilities Lead the design and governance of enterprise Fortinet environments Define and maintain security architecture standards, operational models, and best practices Provide technical oversight for large-scale Fortinet deployments, migrations, and optimisation initiatives Work closely with SOC, infrastructure, networking, and security engineering teams Act as the senior escalation point for complex Fortinet architecture and operational challenges Core Technical Expertise FortiManager Policy package governance and lifecycle management ADOM design and administration Workflow approval processes and change governance Multi-tenant operational management Standardisation and automation of security policy deployment FortiAnalyzer Centralised logging and reporting strategy SOC integration and event correlation Incident and event handling workflows Compliance reporting and audit outputs SIEM interoperability and operational analytics Secure SD-WAN SLA rule creation and traffic steering Link health checks and performance optimisation ADVPN architecture and dynamic overlay networking Hub-and-spoke topology design Network segmentation and security zoning strategy UTM / NGFW Leadership ..... full job details .....