Senior AI Large Language Model (LLM) Architect

Accenture UK & Ireland; Dublin; On-site; EUR 140,000 - 190,000; Full time

Job summary

Accenture UK & Ireland is seeking an experienced and senior AI/LLM Architect to design and deliver end-to-end AI platform architectures for the reinvention of the enterprise. You will own technical design across agentic, generative, and classical AI/ML systems, ensuring security, observability, and governance at scale.

You will lead architecture decisions, define ADRs, data flows, and integration specs, while mentoring cross-functional teams and advancing reusable enterprise AI patterns across

Qualifications

• Extensive experience designing and deploying enterprise-grade AI solutions across agentic, generative, and classical AI/ML.
• Proven ability to operate across business and engineering teams to deliver architecture artifacts.
• Experience with cloud vendors and building scalable, production-grade AI platforms.

Responsibilities

• Translate strategy into a technical vision and define performance, reliability, and cost goals.
• Lead stakeholder workshops to align on feasibility and project scope.
• Evaluate build-vs-buy decisions for AI platforms and foundation models.
• Architect multi-agent systems with an MCP Control Plane.
• Design and implement the Agent Registry and AI Gateway.
• Create and maintain ADRs, diagrams, and design specifications.
• Mentor cross-functional teams on architectural best practices.
• Continuously research and integrate emerging AI patterns.

Skills

Python

AI architecture

Cloud platforms

MLOps

Security governance

Education

Bachelor's Degree or equivalent

Tools

Arize

LangSmith

Job description

You are

As an experienced and senior AI/LLM Architect, you will play a pivotal role in designing and delivering end-to-end AI platform architectures that power the modern, reinvented enterprise. Operating at the intersection of business and engineering, you will own the technical design of advanced AI systems — spanning classical machine learning, generative AI, and agentic systems — ensuring they are purposefully architected to meet client business objectives and enterprise-grade standards. Within this scope, you will take deep ownership of one or more critical architecture domains — such as agentic application design, AI security and trust, AI operations and observability, data and knowledge engineering, or model platforms and inference — serving as the lead authority in your domain across client engagements. You will develop and maintain specialized expertise in the technologies, patterns, and emerging practices within your domain, bringing that depth to bear in shaping architecture decisions, accelerating delivery, and building reusable assets that extend across the practice. You will evaluate, select, and apply the right design patterns, technical frameworks, and tools within your domain and across the broader AI architecture — ensuring cohesion across the full system. This includes architecting AI agents encompassing multi-agent orchestration, tool use, skills use, and memory systems, as well as the integration of fine-tuned foundation models and classical ML models into scalable, production-ready platforms. A critical dimension of this role is owning the design of a comprehensive AI context layer — drawing on enterprise knowledge bases, structured and unstructured data sources, and domain-specific content — to ground AI systems in the realities of each client's business and ensure outputs are accurate, trustworthy, and impactful. As the technical authority on your domains, you will lead architecture decisions and be accountable for ensuring systems meet rigorous non-functional requirements across security, observability, governance, performance, and scalability. You will produce and own the architecture artifacts that shape delivery — including architecture decision records (ADRs), component and data flow diagrams, and integration specifications — and provide the technical leadership that enables cross-functional teams of data engineers, ML engineers, and application developers to execute with clarity and confidence. Your contributions will be instrumental in shaping how clients adopt and scale AI, pushing the boundaries of what these systems can achieve and delivering measurable, lasting business value.

You are

As an experienced and senior AI/LLM Architect, you will play a pivotal role in designing and delivering end-to-end AI platform architectures that power the modern, reinvented enterprise. Operating at the intersection of business and engineering, you will own the technical design of advanced AI systems — spanning classical machine learning, generative AI, and agentic systems — ensuring they are purposefully architected to meet client business objectives and enterprise-grade standards. Within this scope, you will take deep ownership of one or more critical architecture domains — such as agentic application design, AI security and trust, AI operations and observability, data and knowledge engineering, or model platforms and inference — serving as the lead authority in your domain across client engagements. You will develop and maintain specialized expertise in the technologies, patterns, and emerging practices within your domain, bringing that depth to bear in shaping architecture decisions, accelerating delivery, and building reusable assets that extend across the practice. You will evaluate, select, and apply the right design patterns, technical frameworks, and tools within your domain and across the broader AI architecture — ensuring cohesion across the full system. This includes architecting AI agents encompassing multi-agent orchestration, tool use, skills use, and memory systems, as well as the integration of fine-tuned foundation models and classical ML models into scalable, production-ready platforms. A critical dimension of this role is owning the design of a comprehensive AI context layer — drawing on enterprise knowledge bases, structured and unstructured data sources, and domain-specific content — to ground AI systems in the realities of each client's business and ensure outputs are accurate, trustworthy, and impactful. As the technical authority on your domains, you will lead architecture decisions and be accountable for ensuring systems meet rigorous non-functional requirements across security, observability, governance, performance, and scalability. You will produce and own the architecture artifacts that shape delivery — including architecture decision records (ADRs), component and data flow diagrams, and integration specifications — and provide the technical leadership that enables cross-functional teams of data engineers, ML engineers, and application developers to execute with clarity and confidence. Your contributions will be instrumental in shaping how clients adopt and scale AI, pushing the boundaries of what these systems can achieve and delivering measurable, lasting business value.

The Work

• Translate business strategy into a technical vision by defining the non-functional requirements (NFRs) necessary to meet operational goals for performance, reliability, and cost.
• Lead stakeholder workshops to align on technical feasibility, define project scope, and manage expectations with clients and leadership.
• Drive the technology selection process, evaluating build-vs-buy decisions for AI platforms (e.g., Arize, LangSmith) and foundational models.
• Architect model- and tool-agnostic multi-agent systems governed by an MCP Control Plane.
• Design and implement the Agent Registry as the mandatory system of record and the AI Gateway for runtime policy enforcement.
• Design and implement a certification gate to ensure no uncertified agents enter production, validating identity, policies, and evaluation metrics.
• Design, implement, and abstract core agent services, including a first-class abstracted memory service with semantic, episodic, and procedural endpoints.
• Architect the end-to-end data pipeline for AI systems, including data ingestion, preprocessing, and synchronization for fine-tuning and RAG.
• Design and implement the context layer—spanning knowledge graphs, vector search, and semantic retrieval—to create reliable, grounded RAG pipelines.
• Architect foundation model adaptation strategies, including dynamic, cost-and-performance-aware model routing and selection.
• Design, implement, and prototype high-throughput, low-latency inferencing solutions using techniques like response caching and request batching.
• Define security, governance, and observability as centrally-enforced, by-design controls for all AI systems.
• Architect a robust, defense-in-depth security framework, including per-agent identity with IAM/IAP binding and layered guardrails.
• Design and implement FinOps controls enforced at the AI Gateway, including token budgets, cost-center labeling, and threshold alerts.
• Establish the framework for comprehensive system evaluation, adopting productized tools and instrumenting observability with OTel
• Define and maintain the enterprise-wide AI reference architecture, reusable design patterns, and a library of approved software components.
• Independently design, implement, build, and deliver proof-of-concept prototypes and foundational software components to validate architectural decisions.
• Produce and own authoritative architecture artifacts, including blueprints, sequence diagrams, design specifications, and Architectural Decision Records (ADRs).
• Mentor and guide cross-functional engineering teams (data, ML, application) on architectural best practices and design patterns.
• Continuously research and integrate emerging AI patterns, frameworks, and technologies to maintain a forward-looking architecture.

Education

• Bachelor's Degree or equivalent

Basic (required) Qualification

• Significant experience in designing & deploying enterprise grade advanced ai solutions using agentic, generative and classical AI/ML using at least one cloud vendor.
• Indiustry experience in the Agentic, LLM and Generative AI space.
• Conssiderable coding experience using python as well as coding engineering, machine learning, deep learning and NLP solutions and applications
• Experience architecting and operationalizing LLM driven application architecture patterns.
• Demonstratable experience as a machine learning architect in the industry designing big data, machine learning. large scale analytical engineering solutions.