1 to 25 of 133 Permanent Prompt Engineering Jobs in London

showcase high-impact AI opportunities, developing proof of concepts to validate feasibility and demonstrate real-world value. Explore, collect, clean, and prepare datasets for prompt engineering, model training and evaluation (Data Engineering). Design and create robust data pipelines (Data Engineering). Develop, test and iterate … prompts to optimise performance across relevance, accuracy, consistency and other areas (Prompt Engineering). Select, train, and fine-tune AI models based on need, leveraging appropriate techniques (e.g. LLMs, Retrieval-Augmented Generation (RAG), Vector Databases, Embeddings, Multi-modal AI, Agentic Workflows) (Model Development). Integrate and deploy scalable … track record leveraging Generative AI to build/enhance products with real user adoption. Experience in developing and fine-tuning Gen AI models, including prompt engineering, model fine tuning and deployment. Knowledge and use of LLM and statistical evaluation techniques such as G-Eval, Bleu, Perplexity and/ More ❯

We are looking for a Product Engineering Director to lead our engineering organization at the intersection of innovation, performance, and customer-centric delivery. As a senior leader reporting directly to the Chief Product Officer , you will be responsible for turning product vision into scalable, secure, and high-performance … that transform the way legal professionals work. You will drive the development of our GenAI-enabled products , ensure delivery excellence, and foster a strong engineering culture rooted in agile practices, modern architecture, and continuous innovation. Key Responsibilities: Engineering Strategy & Technical Leadership Own the technical execution of the product … and security for enterprise legal environments. Leverage agentic frameworks to create adaptive and context-aware features that enhance legal workflows. Execution & Delivery Champion agile engineering practices across cross-functional squads. Ensure high-quality, on-time delivery of features with clear metrics and accountability. Manage engineering capacity, prioritization, sprint More ❯

are a passionate and innovative problem-solver with a deep fascination for the potential of Large Language Models. You possess a strong understanding of prompt engineering principles and are eager to experiment with cutting-edge techniques. You thrive in a fast-paced environment and are comfortable with the … Artificial Intelligence, or a related field. Proven experience in working with Large Language Models (LLMs) such as Gemini, LaMDA, or similar. Strong understanding of prompt engineering principles and techniques. Excellent analytical and problem-solving skills, with a focus on evaluating LLM outputs. Proficiency in Python and experience with More ❯

of core AI/LLM features and underlying backend infrastructure (Python preferred for AI related work). Providing technical leadership and guidance to the engineering team, focusing on LLM/AI and backend best practices. Define best practices in the emerging field of LLM Security, whilst building a cutting … edge product from the ground up. Leveraging deep expertise in the LLM ecosystem (MCP, Ollama, HuggingFace, etc), prompt engineering, and security. Design and implement backend solutions utilizing vector databases and cloud infrastructure (AWS/GCP/Azure). Leading backend development efforts, ensuring scalability, reliability, and security. Collaborating … collaborating with a team of acquired and VC backed CEOs and CTOs driving innovation. What you'll need: 10+ years of relevant backend software engineering experience, with a strong focus on machine learning, AI and more recently LLM and generative AI technologies. Deep expertise in the LLM ecosystem, prompt More ❯

One founder has a strong track record of building and growing a successful investment fund. The other founder has a deep background in software engineering for financial institutions and venture capital investing. We are a lean, ambitious team, rapidly developing our product from our central London office, and we … join us in shaping the future of financial research. The Opportunity This is a unique opportunity to be a pivotal member of our early engineering team. As a Founding AI Engineer, you won't just be coding; you'll be instrumental in architecting and building the core AI capabilities … the integration of external financial data sources. Develop Advanced AI Pipelines & Workflows: Dive deep into crafting and optimizing sophisticated AI pipelines. This involves extensive prompt engineering, building and refining Retrieval-Augmented Generation (RAG) systems, and developing agentic AI workflows that deliver powerful analytical capabilities to our users. Master More ❯

One founder has a strong track record of building and growing a successful investment fund. The other founder has a deep background in software engineering for financial institutions and venture capital investing. We are a lean, ambitious team, rapidly developing our product from our central London office, and we … join us in shaping the future of financial research. The Opportunity This is a unique opportunity to be a pivotal member of our early engineering team. As a Founding AI Engineer, you won't just be coding; you'll be instrumental in architecting and building the core AI capabilities … the integration of external financial data sources. Develop Advanced AI Pipelines & Workflows: Dive deep into crafting and optimizing sophisticated AI pipelines. This involves extensive prompt engineering, building and refining Retrieval-Augmented Generation (RAG) systems, and developing agentic AI workflows that deliver powerful analytical capabilities to our users. Master More ❯

frameworks (PyTorch or TensorFlow), and GenAI libraries (LangChain, LlamaIndex, Transformers). Hands-on experience with vector search, embedding models, and retrieval pipelines. Familiarity with prompt engineering, prompt tuning, and evaluation of generative model outputs. Experience working with healthcare or sensitive data (HIPAA/GDPR compliance awareness). More ❯

Agentic AI systems and Large Language Models to lead the design, development, and deployment of advanced AI solutions. You will collaborate closely with data engineering, analytics, and cloud teams to deliver transformative AI capabilities for our clients. As an influential hire in a growing organisation, your impact will be … best practices in LLMOps, AI lifecycle management, and cloud-native AI infrastructure. Mentor and develop team expertise, positioning Hypercube as a leader in AI engineering excellence. Key Responsibilities Technical Leadership & Strategy Act as the AI and LLM subject matter expert for internal teams and client engagements. Drive the strategic … LLM-based pipelines using AWS or Azure services (e.g., SageMaker, Azure ML, Databricks, OpenAI integrations). Oversee AI model lifecycles from data preprocessing and prompt engineering through to deployment and continuous monitoring in production environments. Collaboration & Stakeholder Management Coordinate with cross-functional teams (data engineers, data scientists, DevOps More ❯

highly collaborative environment. The Role You will: Design, prototype, and deploy AI-driven tools to enhance editorial workflows, commercial operations, and digital products Implement prompt engineering and AI agent solutions to solve real-world problems (e.g. content summarisation, headline generation) Collaborate across departments to integrate AI solutions seamlessly … LLMs, and NLP Proficiency with Python, AI frameworks (e.g. PyTorch, TensorFlow, Hugging Face), and cloud services (preferably GCP or Azure) Hands-on experience with prompt engineering and/or AI agents (professional or personal projects welcome) Comfortable working across mixed teams and adapting to various environments Strong communication More ❯

highly collaborative environment. The Role You will: Design, prototype, and deploy AI-driven tools to enhance editorial workflows, commercial operations, and digital products Implement prompt engineering and AI agent solutions to solve real-world problems (e.g. content summarisation, headline generation) Collaborate across departments to integrate AI solutions seamlessly … LLMs, and NLP Proficiency with Python, AI frameworks (e.g. PyTorch, TensorFlow, Hugging Face), and cloud services (preferably GCP or Azure) Hands-on experience with prompt engineering and/or AI agents (professional or personal projects welcome) Comfortable working across mixed teams and adapting to various environments Strong communication More ❯

be doing: Drive the enhancement and deployment of LLM-based semantic analysis within THE’s Impact Ranking and other academic evaluation projects. Collaborate with engineering teams to improve, rebuild, and integrate LLM workflows within scalable, cloud-based data pipelines. Apply advanced prompt-engineering techniques to improve LLM … pipelines. Ability to apply NLP and data science techniques to real-world academic and sustainability data sets. Demonstrates rigorous attention to detail, especially in prompt engineering and evaluation of semantic outputs. Experience with Machine Learning or Predictive Modelling would be desirable. Familiarity with DataBricks, higher education/research More ❯

be doing: Drive the enhancement and deployment of LLM-based semantic analysis within THE’s Impact Ranking and other academic evaluation projects. Collaborate with engineering teams to improve, rebuild, and integrate LLM workflows within scalable, cloud-based data pipelines. Apply advanced prompt-engineering techniques to improve LLM … pipelines. Ability to apply NLP and data science techniques to real-world academic and sustainability data sets. Demonstrates rigorous attention to detail, especially in prompt engineering and evaluation of semantic outputs. Experience with Machine Learning or Predictive Modelling would be desirable. Familiarity with DataBricks, higher education/research More ❯

AI Engineer – Agentic Systems & Automation – £70,000 – Fully remote in UK A fast-growing company at the forefront of engineering innovation and AI automation is seeking an experienced AI Engineer to help develop intelligent, scalable agentic systems integrated into modern software development lifecycles. This role involves leading the design … and deployment of LLM-powered agents, developer tools, and automation frameworks that streamline workflows and elevate productivity. This is a hands-on engineering role that blends software development, AI experimentation, and product innovation. The successful candidate will play a key role in architecting agent-based systems, leveraging advanced frameworks … LlamaIndex to enhance developer workflows. Tooling & Assistant Innovation: Develop AI-powered assistants and developer tools with an emphasis on scalability, performance, and reliability. AI Engineering: Build, test, and optimize generative AI features using platforms such as OpenAI, Claude, and Gemini, including fine-tuned custom models and evaluation pipelines. Prompt More ❯

AI Engineer – Agentic Systems & Automation – £70,000 – Fully remote in UK A fast-growing company at the forefront of engineering innovation and AI automation is seeking an experienced AI Engineer to help develop intelligent, scalable agentic systems integrated into modern software development lifecycles. This role involves leading the design … and deployment of LLM-powered agents, developer tools, and automation frameworks that streamline workflows and elevate productivity. This is a hands-on engineering role that blends software development, AI experimentation, and product innovation. The successful candidate will play a key role in architecting agent-based systems, leveraging advanced frameworks … LlamaIndex to enhance developer workflows. Tooling & Assistant Innovation: Develop AI-powered assistants and developer tools with an emphasis on scalability, performance, and reliability. AI Engineering: Build, test, and optimize generative AI features using platforms such as OpenAI, Claude, and Gemini, including fine-tuned custom models and evaluation pipelines. Prompt More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯

a monorepo that includes both the B2B SaaS platform and AI/LLM modules Integrate and optimize commercially available LLMs (e.g., OpenAI, Gemini) via prompt engineering and inference pipeline management Implement multi-step LLM workflows using orchestration frameworks such as LangChain. Design and optimize the MySQL database Develop … proficiency in building modern web applications with Next.js, tRPC, TypeScript, and Prisma Practical experience integrating with AI models such as ChatGPT or Gemini, including prompt engineering and API management Familiarity with tools like LangChain (or similar) to implement multi-step AI workflows A demonstrated ability to learn quickly More ❯