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Senior AI Engineer United Kingdom Jobs (Hybrid work)

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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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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 Engineering Manager
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Lead the delivery of cutting-edge Generative AI and LLM solutions at Citi's Innovation Lab in London. This senior management role requires 15+ years in software, with 5+ years in ML and proven leadership of engineering teams. Drive global R&D initiatives, leveraging deep learning frameworks and c...
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United Kingdom , London
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Citi
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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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Senior AI Engineer
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Join Elsewhen as a Senior AI Engineer in London. Design and deploy cutting-edge LLM and multi-agent systems using Python, FastAPI, and cloud platforms. Enjoy a remote-first culture, private health insurance, and 27 days of holiday in this impactful, collaborative role.
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United Kingdom , London
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Elsewhen
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Senior AI Engineer
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Join Elsewhen as a Senior AI Engineer in London. Design and deploy cutting-edge LLM and multi-agent systems using Python, FastAPI, and cloud platforms. Enjoy a remote-first culture, private health insurance, and generous leave while solving complex problems for leading clients.
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United Kingdom , London
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Elsewhen
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Senior Engineering Manager - AI Core Platform
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Lead the AI Core Platform team at Intercom in London. This hands-on role combines managing senior engineers with contributing to production code, building foundational AI infrastructure. We seek a leader with recent coding experience, strong technical judgment, and a passion for AI/ML systems. En...
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United Kingdom , London
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Intercom
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Senior AI Engineer
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Join our Digital & Data team in London as a Senior AI Engineer. Work on diverse projects using cutting-edge AI tools like LangChain and LLMs within a hybrid model. We seek passionate engineers with cloud and DevOps experience for innovative, client-focused solutions. Enjoy excellent benefits incl...
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United Kingdom , London
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PA Consulting
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Senior Full-Stack Engineer - Physical AI
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Join Encord in London as a Senior Full-Stack Engineer for Physical AI. Build the AI data infrastructure of the future, tackling large-scale data, 3D rendering, and ML models for top robotics firms. Enjoy high autonomy, end-to-end ownership, and a competitive package with equity in a fast-growing,...
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United Kingdom , London
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Encord
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Senior Forward Deployed AI Engineer
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Join Barclays in London as a Senior Forward Deployed AI Engineer. You will design agentic workflows, deploy AI/ML models, and rapidly prototype scalable solutions. This hybrid role requires strong MLOps, full-stack cloud skills, and financial acumen. Enjoy a supportive culture with flexible worki...
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United Kingdom , London
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Barclays
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Senior AI Engineer
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Senior AI Engineer role in Belfast. Develop innovative AI solutions using LLMs, RAG, and cloud platforms. Enjoy a hybrid model with a focus on technical career growth.
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United Kingdom , Belfast
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PA Consulting
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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.

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