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Senior AI Engineer United Kingdom Jobs

38 Job Offers

Senior AI Engineer
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Senior AI Engineer sought to join a dynamic Digital & Data team in Manchester, UK. This hybrid role demands expertise in LLMs, RAG pipelines, and cloud-native platforms (AWS/GCP/Azure). You will build agentic architectures and GenAI prototypes, working cross-functionally with product and design t...
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PA Consulting
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Senior Golang Engineer - AI Product & Platforms
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Senior Golang Engineer sought for Citi’s AI Product & Platforms team in London. You will build production-grade, business-facing AI platforms from 0-1, architecting high-performance microservices and developer tools at planetary scale. Requires deep expertise in Go concurrency, RESTful/gRPC APIs,...
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Citi
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Senior AI Engineer
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Senior AI Engineer sought to drive innovation in Belfast. Join a collaborative team building GenAI solutions with LLMs, RAG pipelines, and agent frameworks. Requires strong software engineering skills, cloud-native experience (AWS/GCP/Azure), and a passion for emerging AI tools. Enjoy hybrid work...
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PA Consulting
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Senior Ai Voice Engineer
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Senior AI Voice Engineer needed to build and scale a production-grade voice platform for a major UK financial services firm. You will architect and deploy real-time conversational AI systems using Python, LLMs, and speech technologies (Azure Voice Live, ElevenLabs, Deepgram). This contract role o...
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500.00 - 550.00 GBP / Day
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Arrows Groupe
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Senior Python Engineer - AWS and AI
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80000.00 - 90000.00 GBP / Year
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TalentHawk
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Senior AI Legal Engineer
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Iceberg Cyber Security
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Full Stack Engineer - AI Enabled - Senior Vice President
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Citi
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Senior Agentic AI Engineer
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Senior Agentic AI Engineer sought to design autonomous AI systems for Roku’s platform in Cambridge, UK. You will build multi-agent workflows using LLMs, RAG, and TypeScript/Python to optimize UI rendering in the FRAME engine. Requires deep software engineering expertise and a builder’s mindset fo...
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Roku
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Senior AI Engineer
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Senior AI Engineer sought by Rapid7 to join their AI Centre of Excellence in Belfast, UK. You will design and deploy production AI systems using Python, PyTorch, and AWS Bedrock to accelerate threat detection and response. Ideal candidates have expertise in ML frameworks, agentic orchestration (C...
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Rapid7
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Senior Front End Engineer - AI Products
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Senior Front End Engineer sought to build AI-powered products at Citi’s cutting-edge tech team in London. You will architect scalable React/TypeScript applications, design component libraries, and optimise performance for enterprise-scale platforms. Requires deep React expertise, TypeScript maste...
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Citi
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Senior Security Engineer - AI Products & Platforms
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Senior Security Engineer sought for Citi’s AI Products & Platforms team in London. You will build secure, production-grade AI platforms from 0-1, conduct ethical hacking and red team activities, and mitigate LLM-specific vulnerabilities. Requires deep application security expertise and a passion ...
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Citi
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Senior AI Engineer
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Senior AI Engineer sought for a UK prop-tech firm building a production-grade autonomous AI agent platform. This contract role demands 10+ years of experience with TypeScript/JavaScript, .NET, and AWS, plus proven expertise in LLMs (OpenAI, LangChain) and multi-agent systems. You will design agen...
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900.00 GBP / Day
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Nicoll Curtin
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Senior Engineer - AI Core Services
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Senior Engineer - AI Core Services in Cambridge, UK. Join a team building scalable, cloud-native AI platform services and public APIs using Microsoft Azure and .NET. Requires 10+ years in software engineering, expertise in RESTful API design, security, and AI frameworks. Enjoy mentoring, rapid pr...
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Codvo AI
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Principal AI Software Engineer, Senior Vice President
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Principal AI Software Engineer, SVP role in London. Architect scalable backend systems for advanced AI tools, leveraging expert Python, FastAPI, and Generative AI frameworks like LangChain. Requires deep ML knowledge and full lifecycle ownership. C++ expertise is a bonus. Benefits include 27+ day...
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Citi
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Senior Backend Python Engineer - AI Platform
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Senior Backend Python Engineer sought to architect scalable backend systems for a global financial institution’s AI Platform in London. You will design and deploy production-grade code using FastAPI, Kubernetes, and CI/CD, focusing on knowledge graph automation in Credit Risk. Requires deep Pytho...
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Citi
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Senior AI Engineer
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Senior AI Engineer sought to lead enterprise‑grade AI and generative AI solutions in London. You will design scalable systems using Python, Azure AI, LLMs, and RAG architectures, while owning MLOps/GenAIOps practices. This role demands strong technical leadership, mentoring, and collaboration in ...
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LegalAndGeneral
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Senior AI Engineer
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Senior AI Engineer sought to lead enterprise‑grade AI and generative AI solutions in Cardiff, UK. You will design scalable systems using Python, Azure AI, LLMs, and RAG architectures, while owning MLOps/GenAIOps practices. This role demands strong technical leadership, mentoring, and collaboratio...
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LegalAndGeneral
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Full Stack Engineer - AI Enabled – Senior Vice President
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Senior Vice President Full Stack Engineer sought by Citi in London to lead AI-enabled enterprise solutions. This role demands deep expertise in Java, Angular, microservices, and event-driven architectures (Kafka). You will design intelligent agents using agentic AI, driving digital transformation...
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Citi
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About the Senior AI Engineer role

Explore the frontier of technology by pursuing Senior AI Engineer jobs, a critical role at the intersection of advanced research and real-world application. Senior AI Engineers are the architects and builders of intelligent systems, responsible for transforming theoretical machine learning models into robust, scalable, and impactful solutions. This senior-level position demands not only deep technical expertise but also strategic vision to guide projects from conception through to deployment and maintenance.

Professionals in this role typically engage in the full lifecycle of AI development. Common responsibilities include designing and implementing sophisticated machine learning and deep learning models, which may involve areas like computer vision, natural language processing (NLP), generative AI, or reinforcement learning. A significant part of the role focuses on MLOps—building and maintaining pipelines for continuous integration and deployment (CI/CD) to ensure models can be reliably trained, versioned, and deployed into production environments. They build high-performance APIs to serve these models and integrate them seamlessly with existing business applications and data systems. Furthermore, Senior AI Engineers are tasked with rigorous model evaluation, performance monitoring, and optimization to ensure solutions remain effective and efficient over time.

Beyond pure model building, these engineers often champion software engineering best practices within data science teams, emphasizing clean code, thorough testing, and comprehensive documentation. They collaborate closely with data engineers, software developers, and business stakeholders to align technical efforts with organizational goals. Leadership is a key component; senior professionals frequently mentor junior team members, make pivotal technology stack decisions, and drive the adoption of new methodologies and tools.

Typical skills and requirements for Senior AI Engineer jobs include an advanced degree (Master's or PhD) in Computer Science, Machine Learning, or a related quantitative field, coupled with 5+ years of hands-on experience. Expert proficiency in Python and its core data science libraries (e.g., Pandas, NumPy, Scikit-learn) is essential, as is deep practical knowledge of frameworks like TensorFlow or PyTorch. Experience with cloud platforms (AWS, Azure, GCP) for scalable computing, containerization tools like Docker, and orchestration systems such as Kubernetes is highly valued. A strong understanding of software engineering principles, API development, and database systems (SQL/NoSQL) is mandatory to bridge the gap between data science and production software. Crucially, successful candidates possess excellent problem-solving abilities, the capacity to navigate ambiguity, and the communication skills to explain complex technical concepts to diverse audiences. For those passionate about shaping the future with intelligent systems, Senior AI Engineer jobs offer a challenging and rewarding career path at the cutting edge of innovation.