The opportunity Technology leaders are facing a new architecture problem. Cloud, data, AI, enterprise platforms and increasingly agentic systems can no longer be treated as separate transformation agendas. Decisions made across these layers determine an organisation's speed of innovation, technology economics, resilience, interoperability and ability to scale AI safely. Deloitte Africa Engineering, AI & Data Advisory is looking for an exceptional Senior Manager – Platform, Architecture & Modernisation Advisory to help executives navigate these decisions and translate them into executable transformation programs. This is not a conventional enterprise architecture or solution architecture role. It is a senior consulting and practice-building position for someone who can challenge technology strategy, make complex architecture choices understandable to executives, create investable modernisation pathways and mobilise engineering teams to execute them . Your mandate As capability steward, you will build and lead Deloitte Africa's Advisory proposition around the technology foundations required for modern digital and AI-enabled enterprises. You will connect strategic intent to the architecture decisions required to make it real. Your mandate spans: Technology decision advisory. Help CIOs, CTOs and CDAOs make consequential decisions around cloud, data, AI, integration, enterprise platforms, modernisation and emerging technology. Architecture challenge. Independently assess and challenge existing technology strategies and architectures, identifying structural constraints, unnecessary complexity, technical debt and future capability gaps. Transformation architecture. Translate target-state architecture into sequenced, investable transformation programs rather than producing architecture diagrams without an execution pathway. Commercial leadership. Build propositions, create pipeline, originate engagements and expand architecture-led advisory into wider engineering transformation opportunities. Capability stewardship. Develop Deloitte's architecture methods, reference patterns, talent, technology ecosystem and market position. What you will do You will: Advise CIOs, CTOs, CDAOs and architecture leaders on strategic technology choices. Perform independent architecture and technology-strategy reviews. Define enterprise technology principles and target-state architectures. Develop modernisation strategies spanning applications, cloud, data, integration and AI. Design enterprise AI platform strategies and associated architecture roadmaps. Help clients determine what should be built, bought, modernised, consolidated, retired or consumed as a service. Translate architecture alternatives into explicit business, cost, risk and execution trade-offs. Develop cloud, data and AI platform roadmaps aligned to business strategy. Shape enterprise architecture for GenAI and agentic AI, including model access, knowledge, integration, orchestration, observability, control and security. Advise on AI gateways, control planes and common enterprise AI services. Evaluate hyperscaler, SaaS, platform and technology vendor propositions independently. Support major technology investment decisions and commercial negotiations. Connect enterprise architecture to technology operating model, governance and delivery implications. Develop pragmatic transition architectures and transformation sequencing. Structure and lead complex technology advisory engagements. Mobilise specialists across Cloud, AI, Data, Cyber, Engineering and enterprise platforms. Lead senior architecture forums and executive decision workshops. Originate and convert advisory and transformation opportunities. Build signature offerings, methods, reference architectures and reusable IP. Develop ecosystem relationships with hyperscalers and major technology providers while maintaining independent client advice. Mentor and develop architecture-oriented advisory talent.