4 of 4 Semantic Search Jobs in the UK

a strong open-source software background to join a fast-growing scale-up. They offer fully remote employment and have a team of engineers dedicated to developing AI-powered search and Retrieval-Augmented Generation (RAG) pipelines within DataStax-based architecture. This role is perfect for someone with expertise in Open-source, API development, fine-tuning LLMs, and integrating AI … have a passion for optimizing LLM performance, we want to hear from you. Key Responsibilities: Develop and maintain scalable RESTful & GraphQL APIs to interact with LLMs and AI-powered search systems. Design and implement Retrieval-Augmented Generation (RAG) pipelines using open-source tools like LangChain, Langflow, and DataStax Vector Search. Fine-tune LLMs (Hugging Face, OpenAI, Cohere, or similar … to improve response quality and domain-specific performance. Optimize embedding models for better semantic search and document retrieval. Integrate AI-driven solutions with vector databases such as DataStax Astra DB, Weaviate, or FAISS. Implement secure API authentication (OAuth2, JWT) and manage access controls. Collaborate with AI/ML, data engineering, and DevOps teams to ensure seamless system integration. More ❯

LLMs for Retrieval-Augmented Generation (RAG), including open-source implementations. Experience with LLM architecture (e.g., Transformer, GANs, VAEs), Fine-tuning PEFT/LoRA, Context embedding, Vector database technologies, and Semantic Search techniques & tools. Familiarity with Azure cloud platform services and distributed computing frameworks (e.g., SparkNLP) is a plus. Knowledge of Agentic workflows and frameworks. Experience extracting data from More ❯

portals, scripts, and APIs to streamline business workflows. AI & Advanced Analytics Integrate AI services into BI dashboards and operational workflows (e.g., anomaly detection, natural language Q&A). Implement semantic search and intelligent alerting using AWS Bedrock or Azure equivalents. Security, Governance & Resilience Enforce least-privilege access, RBAC, and secrets management. Apply data governance across AWS/Microsoft More ❯

to scale intelligence to serve humanity. We're training and deploying frontier models for developers and enterprises who are building AI systems to power magical experiences like content generation, semantic search, RAG, and agents. We believe that our work is instrumental to the widespread adoption of AI. We obsess over what we build. Each one of us is More ❯