We are working with a client who is a global leader in consulting, technology services, and digital transformation, committed to delivering positive change through technology and human collaboration. They have a Cybersecurity Sciences and Analytics (CSA) team that is currently a $50m and 150 headcount function, bringing together expertise across cybersecurity, data science, AI, software and cloud engineering, governance, and programme management. This Technical Solution Architect role is a hands-on architecture and solution design specialist within the CSA Strategy and Governance team. They shape and assure end-to-end technical designs that enable CSA''s cyber analytics and engineering outcomes. They define and maintain key architecture artefacts (HLDs/LLDs, reference architectures, patterns, and ADRs). They also drive technology evaluation and standardisation across an open-source, petabyte-scale data platform. They own solution designs for custom cybersecurity applications, from requirements through to production support. Partnering with engineering, platform, and central architecture/governance teams, they run design and governance forums and influence without authority. They''ll bring genuine cybersecurity expertise-threat modelling, security controls, identity and access, encryption, logging, and secure SDLC-so CSA''s platforms and products can be trusted in production and stand up to regulatory scrutiny. They balance target architecture with delivery realities, ..... full job details .....