3,926 to 3,950 of 4,131 LLM Jobs in the UK

Prompt Architect: AI Agent Tuning & Quality

Location
United Kingdom
OMEGA, Inc. seeks an AI Prompt Engineer to shape the behavior of LLM‐driven agents in production, developing prompts, evaluations, and self‐optimizing feedback loops to keep outputs accurate, on‐brand, and cost‐efficient. You will own prompt architectures, run evaluation suites and A/B tests, and work with ...

Remote UK: Senior NLP Engineer for AI & Compliance

Location
Greater London, England, United Kingdom
unstructured data. You'll work with engineering, product and business teams in a fully remote UK setting, applying both classical NLP and cutting-edge LLM approaches to deliver scalable, customer-facing AI features. #J-18808-Ljbffr ...

AI-Driven Product Security Engineer

Location
Greater London, England, United Kingdom
will analyze architecture, triage findings, and collaborate with engineering to implement secure design and remediation strategies at scale. This role emphasizes building AI/LLM-powered tooling to speed up triage and data enrichment. #J-18808-Ljbffr ...

VP, CCOR Data Analytics & Risk Innovation

Location
Greater London, England, United Kingdom
ensuring alignment with regulatory expectations and business objectives. You will partner with Compliance, Technology and cross-functional stakeholders to gather requirements, drive AI/LLM-enabled innovations, manage backlogs and UAT, and lead workshops and executive communications across the firm. #J-18808-Ljbffr ...

NLP Engineer: Transformer Models & LLMs

Location
United Kingdom
Devitechs in the United Kingdom is looking for an expert in Natural Language Processing to design and develop innovative NLP models. You will apply cutting-edge transformer architectures for various applications like text classification and ...

QA AI Engineer for Trustworthy AI & Platform Quality

Location
Sheffield, England, United Kingdom
Xpansiv is seeking a QA AI Engineer to ensure the quality, reliability, and safety of AI-driven products and LLM infrastructure. You will design test plans, execute cases, and build evaluation pipelines in a cross-functional environment. You will work with AI engineering, product, operations, and business stakeholders to embed ...

FRTB Market Risk: Implementation & Analytics VP

Location
Greater London, England, United Kingdom
regulatory submissions and policy. You will collaborate across Quantitative Research, Market Risk Tech, and regulatory teams, shape the analytics framework, advance AI/LLM-enabled risk processes, and represent the firm in industry groups while delivering robust, auditable capital #J-18808-Ljbffr ...

AI Quality Engineer for Enterprise LLMs (Hybrid)

Location
Greater London, England, United Kingdom
WRITER is seeking a Software Quality Engineer to shape the reliability and trustworthiness of its AI-powered work orchestration platform. You will lead QA strategies, build automation, and collaborate with ML teams to validate complex ...

Global Commercial AI Platform Architect - Drive Innovation

Location
Greater London, England, United Kingdom
with PN Digital Product teams and business leaders to architect data, integration, and AI-enabled services. You will drive architecture patterns for GenAI/LLM, participate in governance reviews, and work with enterprise architects to ensure alignment #J-18808-Ljbffr ...

Senior Backend Engineer — Flexible Remote + Stock Options

Location
United Kingdom
United Kingdom. You’ll build and maintain backend APIs for new platform products, design standalone systems, and integrate third-party services and AI/LLM features. You will work closely with product and UX, including user interviews to inform architecture and decisions. Join a fast-paced team that values action ...

Forward Deployed AI Engineer - Ship Real-World Solutions

Location
Greater London, England, United Kingdom
within days. Ideal candidates have 1–5 years' experience, proven ability to ship customer-facing software, and strong fundamentals in systems design, AI/LLM tooling, and working with senior enterprise customers. #J-18808-Ljbffr ...

Senior AI Platform SRE: Reliability & Automation

Location
Reading, England, United Kingdom
platform and service excellence. The role emphasizes building golden paths, developer tooling, and end-to-end software delivery governance to support ML/LLM workloads and cloud deployments. This is a chance to grow in a mission-driven, globally connected environment. #J-18808-Ljbffr ...

Product Engineer (Fullstack)

Hiring Organisation
Cavendish Professionals
Location
London, United Kingdom
Employment Type
Permanent
product features that deliver real value to users. Building new user-facing features from concept to production Creating AI-powered workflows using the latest LLM technologies Developing real-time collaboration features Rapid 0-to-1 product development and experimentation Optimising application performance, reliability and scalability Working closely with Product, Design … solve real customer problems Tech Stack TypeScript React.js Node.js PostgreSQL AWS Terraform Tailwind CSS Framer Motion Radix UI An interest in AI and LLM-powered products is highly desirable, although previous AI experience isn't essential. You'll likely have experience with: Building full stack applications in modern JavaScript/ ...

NLP/ML Research Engineer — Prototyping Cutting-Edge AI

Location
Linton, England, United Kingdom
RedTech Recruitment Ltd. in Cambridge seeks a senior Machine Learning Research Engineer to explore novel NLP/LLM approaches, prototype concepts and push state-of-the-art in a fast-moving software environment. The successful candidate will hold a PhD related to NLP, work on cutting-edge research projects ...

Field AI Engineer: Production-Ready Multimodal Systems

Location
Greater London, England, United Kingdom
aion is seeking a hands-on AI engineer with 3-5+ years of experience building production-grade multimodal AI systems and LLM applications. You will work directly at client sites to architect, build, and deploy intelligent agent solutions that solve real business problems. You will collaborate with customers, design ...

AI Security Penetration Engineer

Location
Belfast City, Northern Ireland, United Kingdom
Offensive Security Analyst to run security assessments on AI systems and build AI-powered testing tools. You will test AI applications, agents, and LLM-backed products, and help secure enterprise-scale AI deployments across Citi. You will work with security engineers to integrate testing into the build process and leverage ...

Hybrid Research Engineer — AI Safety & Red Team

Location
Greater London, England, United Kingdom
systems. You will design and execute experiments, publish impactful findings, and collaborate with leading researchers from academia and industry. The role spans hands-on LLM research and building robust research tooling in a hybrid work setup. Ideal candidates have a strong publication record, experience with ML frameworks, and a proactive ...

Staff Engineer: Evolutionary Optimisation

Location
Greater London, England, United Kingdom
Callosum Technologies Ltd. is hiring to lead the program evolution loop in an LLM-guided optimisation system. You will design strategies that navigate vast search spaces and build benchmarks to quantify improvements across workloads. Join a London-based team building a scalable, reusable infrastructure that advances inference, scheduling and scaling ...

Head of AI & Platform Architect – Healthcare (Hybrid, London)

Location
Greater London, England, United Kingdom
Head of AI to lead a team that designs and operatises graph-integrated generative AI architectures for healthcare workflows. You will bridge NLP pipelines, LLM-based reasoning, and knowledge graph grounding to produce outputs that are accurate, explainable, and suitable for use in regulated healthcare environments. This senior role combines ...

AI-Native Product Engineer

Location
Greater London, England, United Kingdom
Calibre is seeking an exceptional Product Engineer to join the founding team and build a new class of products to supercharge our AI-native certification process. This role is language-agnostic, demanding first principles thinking ...

Front Office AI Enablement Lead

Location
Greater London, England, United Kingdom
repeatable AI-powered workflows. The role offers hands-on prototyping and close collaboration with engineering and governance teams. You will work on integration of LLM tools, RAG concepts, and low-code platforms, ensuring reliable, secure AI usage with measurable impact across trading and research #J-18808-Ljbffr ...

Founding Technical Product Manager, AI Systems (Remote)

Location
Greater London, England, United Kingdom
/engineering on design and evaluation, and own quality end to end. Ideal candidate has 6+ years shipping complex tech products and hands-on LLM experience. #J-18808-Ljbffr ...

Production-Ready Data Scientist: LLMs & AI - Remote

Location
Greater London, England, United Kingdom
BigHand Limited in London is seeking a Data Scientist to design and ship AI-powered features for our legal software, turning real-world data into reliable models. You will work on production-ready code, collaborate ...

Senior NLP ML Research Engineer – Hybrid (Cambridge)

Location
High Wycombe, England, United Kingdom
RedTech Recruitment is seeking a Machine Learning Research Engineer to research and implement new NLP/LLM approaches for a leading machine-learning software company in Cambridge. This role suits candidates with a Ph.D. in CS, Physics, Maths or related fields and a strong NLP/ML background. You will ...

Edge AI Engineer — Build LLMs for Connected Hardware

Location
Belfast City District, Northern Ireland, United Kingdom
behind its stealth-mode hardware/AI devices for security and public safety. You will join a senior team to design, build, and deploy LLM-powered features directly on connected hardware, from data pipelines to real-world deployment. You’ll collaborate with hardware/firmware teams, use MCP for integration ...