Queen Square Recruitment
Principal Architect
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Principal Agentic AI Architect
Rate: £800 (Inside IR35) | Location: London/Bristol (2 days per week onsite)
Contract: 6 – 12 month (extensions highly likely)
We are seeking a Principal Agentic AI Architect to lead the strategy, architecture, and governance of enterprise-scale Conversational AI and Agentic AI platforms. This is a unique opportunity to define target architectures, establish reusable AI patterns, and drive the adoption of cutting-edge AI technologies within a highly regulated enterprise environment. As the Principal Agentic AI Architect, you will own the end-to-end AI architecture strategy, ensuring scalable, secure, and governed AI solutions are delivered using modern Large Language Models (LLMs), multi-agent systems, and Google Cloud technologies.
Key Responsibilities
- Define the enterprise target architecture for Conversational AI and Agentic AI platforms
- Lead technical design authority across complex AI transformation programmes
- Develop reusable architecture patterns, standards, and engineering frameworks
- Architect scalable multi-agent AI solutions using modern LLM orchestration techniques
- Establish governance frameworks covering AI security, compliance, and responsible AI
- Create reference architectures, engineering playbooks, and implementation standards
- Collaborate with enterprise architects, engineering teams, and business stakeholders
- Mentor architects and engineers on Agentic AI best practices and emerging technologies
- Ensure AI platforms are scalable, secure, resilient, and aligned with enterprise strategy
- Drive continuous innovation across enterprise AI capabilities
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Essential Skills & Experience
- 15+ years' experience in Enterprise Architecture or Solution Architecture
- Proven experience leading large-scale AI architecture programmes
- Deep expertise in:
- Agentic AI
- Conversational AI
- Multi-Agent Systems
- Large Language Models (LLMs)
- LLM Orchestration
- Context Engineering
- Strong experience with:
- Google Cloud Platform (GCP)
- Vertex AI
- Enterprise architecture experience within highly regulated environments
- Strong understanding of:
- AI Governance
- Responsible AI
- AI Security
- Experience producing enterprise architecture standards and reference architectures
- Excellent stakeholder engagement and executive communication skills
- Proven ability to mentor technical teams and establish engineering best practices
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Desirable
- Banking or Financial Services experience
- Enterprise AI platform modernisation
- Prompt Engineering
- Retrieval-Augmented Generation (RAG)
- Vector Databases
- MLOps
- AI Observability
- Cloud-native architecture patterns
- TOGAF or equivalent architecture certification
Please apply with your CV and we'll be in touch. Thanks!
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