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Senior AI Engineer United Kingdom Jobs

29 Job Offers

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Senior AI Engineer
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United Kingdom
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900.00 GBP / Day
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Nicoll Curtin
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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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United Kingdom , London
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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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United Kingdom , London
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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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United Kingdom , London
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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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United Kingdom , Cardiff
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LegalAndGeneral
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Senior Forward Deployed AI Engineer
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Senior Forward Deployed AI Engineer sought to lead complex, end-to-end AI deployments at Smartsheet in London. You will architect multi-agent solutions, design MCP resource packs, and build reusable Deployment Kits for 200+ consultants. Requires 6–10+ years in production software engineering with...
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United Kingdom , London
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Smartsheet
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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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United Kingdom , London
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Citi
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Senior AI Engineer
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Senior AI Engineer sought by hyperexponential, a high-growth insurtech backed by a16z. You will architect AI-assisted workflows and deliver complex product epics at 3-5x velocity. Key requirements include building scalable cloud infrastructure and integrating modern AI tooling. Based in the UK, t...
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United Kingdom
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hyperexponential
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Senior AI / ML Engineer
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United Kingdom , London
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BMT
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Senior AI Engineer
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Senior AI Engineer sought to lead production-grade AI systems in London. You will architect complex LLM agents, design evaluation frameworks, and drive end-to-end system delivery. Requires 5+ years in ML/AI, strong system design, and a pragmatic, engineering-first mindset. Benefits include a comp...
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United Kingdom , London
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80000.00 - 90000.00 GBP / Year
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Xelix
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Senior Software Engineer - Build AI Tools
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Join Citi's new GenAI Security team in London as a Senior Software Engineer. Design and build a secure platform to protect AI applications from adversarial attacks using Python/Go. Enjoy a competitive package including bonus, private healthcare, and 27 days annual leave.
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United Kingdom , London
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Citi
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Senior AI Engineer
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Join Xelix as a Senior AI Engineer in London. Design and deploy advanced AI & LLM systems in a fast-paced scale-up. Enjoy a hybrid role with benefits like private medical cover and a dog-friendly office. Shape the future of financial automation with a talented team.
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United Kingdom , London
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80000.00 - 90000.00 GBP / Year
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Xelix
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Senior Software Engineer - AI Adoption Product
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United Kingdom , London
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Multiverse
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Senior AI Engineer
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United Kingdom , London
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Octopus Energy
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Senior AI Engineer
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Join our London team as a Senior AI Engineer. Design and deploy robust, production-grade AI and GenAI/LLM solutions using Python and cloud platforms like Azure/AWS. Lead end-to-end delivery, mentor engineers, and champion Responsible AI principles in a hybrid, innovative environment.
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United Kingdom , London
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Business Integration Partners
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Senior Research Engineer in Materials - AI for Science
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Join Microsoft Research in Cambridge to accelerate materials discovery with AI. As a Senior Research Engineer, you will design scalable DFT workflows and generate frontier datasets for foundational models. This role requires a PhD and expertise in high-throughput computational materials science. ...
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United Kingdom , Cambridge
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Microsoft Corporation
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Senior AI Frontend Engineer (Developer Productivity)
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Join Citi in Belfast as a Senior AI Frontend Engineer. Leverage your deep React/TypeScript expertise to build the UI for a next-gen AI Developer Productivity platform. You'll transform cutting-edge Generative AI into intuitive experiences for 50,000+ global engineers. Enjoy top benefits including...
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United Kingdom , Belfast
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Citi
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Senior Software Engineer - Build AI Tools
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Join Citi's new GenAI Security team in Belfast as a Senior Software Engineer. Design and build a scalable security platform to protect AI applications from adversarial attacks. Leverage your expertise in Python/Go and secure APIs within a collaborative, cutting-edge environment. This role offers ...
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United Kingdom , Belfast
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Citi
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Senior AI Security Engineer
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Join Citi's innovative tech team in London as a Senior AI Security Engineer. Build secure, large-scale AI platforms from the ground up, utilizing Go, Python, and HashiCorp Vault. Lead ethical hacking, red team exercises, and secure novel AI attack surfaces. Enjoy benefits like a performance bonus...
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United Kingdom , London
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Citi
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Senior AI Security Engineer
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Join Citi's tech strategy team in London as a Senior AI Security Engineer. Architect and secure cutting-edge, large-scale AI platforms using Go, Python, and modern cloud stacks. Lead ethical hacking, threat modelling, and mentor teams in a hybrid role with excellent benefits.
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United Kingdom , London
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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.