AI Solution Architect

What you'll be doing

• Designing end-to-end architectures for agent and workflow automation
• Selecting appropriate models, orchestration patterns, data sources and integration approaches
• Defining the boundaries between deterministic software, probabilistic AI and human decision-making
• Addressing identity, permissions, data protection, resilience, observability and cost from day one not bolted on later
• Designing evaluation, fallback, escalation and human-in-the-loop mechanisms
• Producing architecture decisions, patterns and reusable reference designs
• Reviewing implementations and guiding engineering teams through significant technical decisions
• Making sure solutions align with wider enterprise architecture and governance requirements

What we're looking for

• A hands-on architect with strong cloud, integration and distributed-systems experience
• Practical, real knowledge of LLMs, agents, retrieval and evaluation – not just conceptual familiarity
• A problem-solver mindset with a clear memory of what architectural approaches have worked (and what hasn't) across different businesses
• Comfort working across multiple business areas rather than one narrow domain
• MBB consulting background (McKinsey, Bain, BCG) is a strong plus

How this works

• Open to contract or permanent hire
• UK-based candidates: ideally on-site 3 days a week in London
• Candidates based outside the UK: on-site 3 days every fortnight, with flights and accommodation covered for the right candidate with consulting-firm pedigree
• All contract engagements sit inside the scope of IR35