Senior Agentic AI Developer

Senior Agentic AI Developer page is loaded Senior Agentic AI Developerlocations: LG UK Bradford (37,5 hours per week)time type: Full timeposted on: Posted Todayjob requisition id: REQ\_ We're looking for x2 Senior Agentic AI Developers to join our team in Bradford or Leeds on a permanent basis. This hybrid role offers flexibility, with two days in the office and three days working remotely. We are looking for two Senior Agentic AI Developers to lead the design and implementation of advanced agentic AI systems that can independently reason, plan, and act. This role requires proven experience developing agent-based architectures in Python using LangGraph, as well as strong expertise in integrating LLMs, RAG pipelines, and knowledge graphs to create scalable, context-rich intelligent solutions. Design and develop agentic AI systems using LangGraph, Python, and related orchestration frameworks. Architect and implement multi-agent workflows encompassing reasoning, planning, memory, and tool usage. Build and optimise Retrieval Augmented Generation (RAG) solutions integrated with LLMs, vector databases, and knowledge graphs. Develop and maintain knowledge graph pipelines to support context retrieval, semantic search, and reasoning. Integrate external APIs, data sources, and tools into agentic frameworks to extend agent functionality. Collaborate with product, data, and research teams to translate advanced AI concepts into production-ready solutions. Optimise deployed AI systems for performance, scalability, and reliability. Stay up to date with emerging research and advancements in LLM orchestration, agent frameworks, and AI reasoning. We tend to look for people with: Essential Significant commercial experience in software engineering, with a strong track record of designing, building, and delivering AI/ML solutions. Advanced proficiency in Python and modern AI frameworks, including LangGraph, LangChain, and OpenAI APIs. Demonstrated experience building and deploying agentic AI systems, including the development of robust RAG architectures (vector stores, document indexing, and retrieval pipelines). Hands-on expertise in LLM fine-tuning, prompt engineering, and effective context management. Practical knowledge of knowledge graphs and semantic data modeling, using technologies such as RDF, LPG, Neo4j, and SpannerGraph. Strong understanding of modern cloud platforms and MLOps tooling, including GCP and containerization with Docker. Excellent problem-solving skills, with the ability to translate research concepts into scalable, production-ready systems. Desirable : Experience with LangGraph and agent orchestration frameworks. Background in AI reasoning, planning, or multi-agent systems. Familiarity with transformer architecture and vector database technologies (Pinecone, Weaviate, Chroma). Contributions to open-source AI/agentic projects. Degree in a numerical degree preferred Competitive salary. 25 days annual leave with the option to purchase 5 more. Enjoy your birthday off, plus receive an additional 3 days of annual leave once you reach 5 years of service. Access to wellbeing and mental health benefits such as the Calm app, personal medical, critical illness cover and dental insurance, plus many more. Matched pension contribution up to 10% Access to our car benefit scheme Access to our online learning platform to continue to develop and grow your career with us The chance to join an innovative, fast-paced and passionate team Who we are: Liberty Blume, a Liberty Global company, is a rapidly growing business services provider, specialising in tech-enabled back-office solutions. Our mission is to deliver efficiency, scale and value to our customers through Business, Procurement and Financial Solutions. If you're curious, customer centric and enjoy being one step ahead, join us on our scale up journey and unlock your freedom to grow! Liberty Global is an equal opportunity employer, committed to an inclusive environment and accommodating all candidates. We're eager to hear from you, no matter your background. We're building Tomorrow's Connections Today, bringing people together through the power of our technology.Liberty Global is a world leader in converged broadband, video and mobile communications and an active investor in cutting-edge infrastructure, content and technology ventures.With our investments in fibre-based and 5G networks we play a vital role in society, currently providing over 85 million fixed and mobile connections and rolling out the next generation of products and services, while readying our networks for 10 Gbps and beyond.We're creating national champions, combining the best broadband and mobile networks under brands such as Virgin Media-02 in the UK, VodafoneZiggo in The Netherlands, Telenet in Belgium, Sunrise in Switzerland, Virgin Media in Ireland and UPC in Slovakia.Liberty Global Ventures, our global investment arm, has a portfolio of more than 75 companies and funds across content, technology and infrastructure, including strategic stakes in ITV, Univision, Plume, Lionsgate and the Formula E racing series.Our scale enables us to transfer knowledge and expertise across our operations and investments, creating a dynamic family of brands united in the pursuit of innovation and excellence.And we're prioritising diversity, equity and inclusion in our workplace and communities, while reducing our impact on the environment. We are using technology as a force for good; for our people, our partners and the planet.