1 to 25 of 41 Contract LLM Jobs in England

Key Responsibilities Design, build, and deploy Python-based AI and ML applications . Research and develop new Generative AI techniques, including fine-tuning and prompt engineering. Develop and maintain LLM-assisted frameworks and automation pipelines. Write clean, maintainable, and well-documented code for scalable deployment. Build and implement testing and evaluation frameworks for AI models. Collaborate with data scientists, software More ❯

research questions, and run rapid experiments to validate assumptions in the AI domain. Develop, evaluate, and optimise conversational AI models, including Retrieval-Augmented Generation (RAG) architectures. Implement and refine LLM-as-a-judge evaluation frameworks for continuous model improvement. Collaborate closely with cross-functional teams to translate business challenges into analytical and data-driven solutions. Produce clear, visually compelling analytical More ❯

impact solutions Job Responsibilities/Objectives Build and deploy Python based AI applications Research and design advanced experiments and prototypes using cutting edge techniques, specifically in GenAI Develop various LLM assisted frameworks Design and write clean, maintainable, auditable and well documented codebases Implement testing pipelines and evaluation frameworks Good documentation practices to ensure seamless operations Exceptional teamwork and communication skills More ❯

with stakeholders and deliver production-ready solutions independently. Ideal Experience 5+ years in applied Machine Learning, with significant hands-on NLP project experience. Deep understanding of transformer models and LLM fine-tuning. Proficient in Python, PyTorch or TensorFlow, and scikit-learn. Practical experience deploying ML models in production environments (cloud-native or on-prem). Familiar with data versioning, MLflow More ❯

code). Familiarity with AI agent frameworks such as Model Context Protocol (MCP) or LangChain. Exposure to large-scale software system architecture. Desirable: Direct experience in generative AI and LLM research. Experience with open-source AI libraries. Knowledge of SQL and database interaction. Hands-on experience with version control systems. More ❯

with the potential to extend, paying between £700 - £850/Day Inside IR35. Clearance: SC Role Profile: Large Language API's (from 2021) Must have experience in building Large Language Model based applications incorporating tool usage and information retrieval Must have experience in Python programming language Must have experience administering Amazon Web Services accounts Must be able to take ownership More ❯

with the potential to extend, paying between £700 - £850/Day Inside IR35. Clearance: SC Role Profile: Large Language API's (from 2021) Must have experience in building Large Language Model based applications incorporating tool usage and information retrieval Must have experience in Python programming language Must have experience administering Amazon Web Services accounts Must be able to take ownership More ❯

ready AI systems for financial automation with hands-on development approach. Required Qualifications 10+ years of experience in AI/ML engineering with 4+ years in agentic AI and LLM systems Strong proficiency in LangGraph, LangMem, and agentic workflow development Hands-on experience with Azure OpenAI GPT-5, text-embedding-3-large, and Azure AI services Expert-level Python programming More ❯

perspective, to work on an experimental piece, harnessing emerging solutions within the Generative AI space to build capabilities around synthetic audiences and personalisation. Experience requirements : Experience in building Large Language Model based applications incorporating tool usage and information retrieval. Experience in Python programming language. Administering Amazon Web Services accounts. Able to take ownership of the entire feature development lifecycle, i.e. More ❯

a view to extend. They are interested in Engineers with experience of working in an Agile environment amongst multi-disciplinary teams. Key Requirements Must have experience in building Large Language Model based applications incorporating tool usage and information retrieval. Must have experience in Python programming language. Must have experience administering Amazon Web Services accounts. Must be able to take ownership More ❯

Technically sharp AI Prompt Engineer Youll design and optimize prompts, build LLM-powered applications, and deploy scalable GenAI solutions that connect people and intelligent systems in new ways. ?? What Youll Do Design, test, and refine prompts for leading LLMs (GPT-4/5, Claude, Gemini, Mistral, LLaMA, Cohere). Experiment with advanced prompting techniques; Chain-of-Thought, ReAct, Tree-of … speed up iteration. Apply MLOps/LLMOps practices with MLflow, Weights & Biases, and Kubeflow. ?? Youll Bring Strong Python skills and experience with LangChain, Transformers, Hugging Face. Solid grasp of LLM behavior, prompt optimization, and data engineering. Familiarity with vector databases (FAISS, Pinecone, ChromaDB). Hands-on with Linux, Bash/Powershell scripting, cloud environments. Creative problem-solver with excellent communication More ❯

AI Prompt Engineer Location: UK Rate: £400.00 Outside IR35 We are seeking a dedicated and technically proficient AI Prompt Engineer to spearhead the development and optimisation of prompts for advanced platforms such as DealCloud, Filament Sifter, and Capsa. The ideal More ❯

Role/Job Title: Prompt Engineer Work Location: London 250 Bishopsgate (on site) The Role A Prompt Engineer in the Data and Analytics domain within banking plays a crucial role in leveraging Generative AI (GenAI) and Large Language Models (LLMs More ❯

generation Generative AI platform to accelerate drug discovery and safety evaluation. They're looking for a Backend Software Engineer to help design and develop backend systems supporting large-scale LLM and GenAI workloads. The role will focus on backend architecture, API integration, and automation across data and compute pipelines. What you'll be doing: Build and maintain Python backend systems … for GenAI evaluation Integrate LLM components with data and compute infrastructure Deliver clean, well-tested, production-grade code (FastAPI preferred) Collaborate with ML engineers, data scientists, and DevOps teams Participate in agile delivery and CI/CD improvement initiatives Key Skills: Python, FastAPI, Cloud (GCP/AWS), CI/CD, Git/GitHub, automated testing, DevOps fundamentals Ideal for: Engineers … with a strong backend foundation and hands-on GenAI or LLM integration experience looking to contribute to applied AI in healthcare. More ❯

NLP/GenAI Data Scientist (3 - 6 months)Python coding & NLP and LLMs experience is EssentialLocation: 3 days onsite - do not apply if needing fully remote)Certain Advantage are recruiting on behalf of our global energies client for an NLP More ❯

**Senior Python Developer** (Contract) Duration: 3 Months (Possibility for extension) Location: Remote (Occasional travel to London as and when required) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile We are seeking a highly skilled More ❯

**Senior Python Developer** (Contract) Duration: 3 Months (Possibility for extension) Location: Remote (Occasional travel to London as and when required) Rate: A highly competitive Umbrella Day Rate is available for suitable candidates Role Profile We are seeking a highly skilled More ❯

Join a forward-thinking team building the next generation of Generative AI applications using Google Gemini. This 6-month contract offers the chance to architect and deploy LLMs at scale on GCP, driving performance, efficiency, and innovation. You'll play More ❯

Job summary Barts Life Sciences is looking for a Senior Data Scientist to join our innovative and growing team. In this role, you will apply advanced data science techniques to healthcare data, helping to develop products and services that directly More ❯

of Gen AI technologies that directly impact the company's customer experience (CX) vision. You will collaborate closely with other software engineers, product teams, and AI specialists to develop LLM AI-powered applications, ensuring their scalability, security, observability and performance. This role is hands-on, with a primary focus on coding, testing, and deploying AI solutions in a fast-paced … software development, with exposure to AI or machine learning projects. Proficient in Python and JavaScript, ideally with hands-on experience in building Gen AI proof of concepts or integrating LLM APIs. Familiarity with AI platforms such as OpenAI, Anthropic, or Databricks. Strong understanding of AI technologies and tools Experience working within an agile development environment, with an emphasis on collaboration More ❯

Backend Software Engineer (AI) £750 - £800 per day 2 days onsite We're working with a global healthcare and AI research organisation that's pioneering the use of advanced Machine Learning to accelerate the discovery and delivery of life-changing More ❯

Software & AI Engineer £750 - £800 per day 2 days onsite We're working with a global healthcare and AI research organisation that's pioneering the use of advanced Machine Learning to accelerate the discovery and delivery of life-changing treatments. More ❯

team on a contract basis for 2 month initial period. The successful candidate will help build and scale advanced AI-driven applications, with a strong focus on production-ready LLM workflows, efficient architecture, and seamless integrations. You’ll work alongside a tight-knit team of engineers and product leads who are deeply committed to building responsible, high-impact AI systems. … contribute to a team building meaningful and novel AI experiences, we want to hear from you. Minimum Requirements: Strong Python skills with clean, maintainable code. Proven production experience with LLM workflows and scaling them in real-world applications. Solid understanding of advanced prompt engineering techniques. Good knowledge and practical experience with FastAPI and RESTful APIs. Solid knowledge of PostgreSQL. Experience More ❯

robust, reliable, and user-focused AI services across our business. What You'll Do Design and implement a comprehensive AI testing and evaluation framework for all AI solutions, including LLM-based tools, RAG systems, and third-party platforms. Define and document quality standards for semantic accuracy, factual consistency, bias, tone, and relevance. Develop reusable testing templates, data sets, and evaluation … practices to ensure fairness, transparency, and user trust. What You'll Bring Strong hands-on experience in testing and evaluation of AI or software systems, ideally with NLP or LLM-based applications. Understanding of prompt evaluation, semantic search, and LLM behaviour (accuracy, hallucination, bias, tone, etc.). Familiarity with tools like Trulens, HumanLoop, PromptLayer, or similar; experience designing QA approaches More ❯

days a week from office Job Description : Principal AI Architect to lead the design and implementation of enterprise-scale AI solutions for financial services automation. Drive architectural decisions for LLM-based systems, agentic workflows, and intelligent document processing platforms serving private equity and fund management operations. Required Qualifications 15+ years of experience in AI/ML architecture with 8+ years … in enterprise AI solutions Deep expertise in LLM architectures, prompt engineering, and agentic frameworks (LangGraph, LangMem) Hands-on experience with Azure OpenAI GPT-4/5, embedding models, and Azure cloud services Strong background in Python, distributed systems, and enterprise architecture Experience with Claude Code for agentic coding and AI-powered development Proven track record in financial services or regulatory More ❯