51 to 75 of 129 LLM Jobs in the City of London

Founding Sales Manager – 100 MW, HPC & AI Infrastructure

Hiring Organisation
asobbi
Location
City of London, London, United Kingdom
cooled racks NVIDIA Reference Design Architecture Compliant Ultra-competitive power costs Low-latency European connectivity Built for Neo-Clouds, GPUaaS providers, AI-native companies, LLM developers, and HPC users seeking an alternative to hyperscalers. The Mission Close multi-year contracts to fully monetise the initial 100 MW capacity Convert pipeline ...

GenAI Engineer

Hiring Organisation
Klarus
Location
City of London, London, United Kingdom
agentic AI capabilities across our consulting and client environments. This is a hands-on technical role that blends systems architecture, agent design, applied LLM engineering, and enabling others through frameworks, education and tooling. You will work closely with our AI strategy, data, and delivery teams to embed GenAI safely … e.g., GDPR, SOC2/ISO27001 where applicable). 2. Bespoke AI Agent Creation Build custom domain-specific agents using OpenAI, Claude, Gemini or other LLM providers. Design multi-step agent workflows, toolchains and action schemas for complex reasoning and execution. Design and optimise short-term and long-term memory systems ...

Artificial Intelligence Engineer - Fitness & Health

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
want to build production GenAI products (not prototypes) in a business with real scale and board-level visibility? Have you shipped LLM/RAG systems end-to-end and owned them in production? Are you ready to join a new AI team early and shape how AI is delivered across … building scalable AI services that directly improve customer experience and business performance. Key responsibilities Design, build and deploy end-to-end AI solutions Develop LLM solutions (e.g. RAG, workflow orchestration, evaluation) Build APIs/services integrating data sources and AI outputs Translate stakeholder needs into practical technical delivery plans ...

Agentic AI Engineer

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
Agentic AI Engineer (LangChain LangGraph RAG LLM) London/WFH to £90k Do you want to work on cutting edge AI technology being used in the real world? You could be progressing your career as an Agentic AI Engineer at a successful and growing technology company that have recently received … equipment details and observed health and safety issues to customer recommendations, for example triaging and dispatching personnel. Responsibilities will encompass building and maintaining production LLM applications (prompt engineering, context design, guardrail development), development and optimisation of inference pipelines for accuracy, reliability and enterprise grade consistency and running evaluation workflows using ...

Senior Data Scientist/Researcher

Hiring Organisation
Monq
Location
City of London, London, United Kingdom
The Problem Every major enterprise procurement deal - a mining company locking in steel supply, a manufacturer negotiating energy contracts, a retailer securing food commodities - lives or dies on one question: what will this cost six ...

Solutions Architect

Hiring Organisation
X4 Technology
Location
City of London, London, United Kingdom
Solution Architect – Generative AI - Fintech Location: London Salary: £100 - £110k I’m currently partnering with an innovative Financial Services business that is building cutting-edge Generative AI platforms for enterprise clients. They are looking for ...

Artificial Intelligence Engineer

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
multi-year transformation. Following an award-winning data programme, the company now has an established AI function and is investing further in LLM-powered assistants, RAG pipelines, voice/chat intelligence and early agentic workflows across both customer-facing and internal products. This Senior AI Engineer role is a hands … grounded. The role spans the full AI lifecycle, from data preparation and model evaluation through to deployment and optimisation. Key responsibilities • Lead development of LLM and AI proof-of-concepts • Design and implement RAG pipelines and agentic workflows • Define evaluation frameworks for LLM quality and response accuracy • Partner with product ...

GenAI Engineer - Global Beauty Brand

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
systems and scaling new GenAI capabilities across the business. This is a hands-on engineering role focused on building real AI products – from LLM-powered customer experiences to production recommender and forecasting systems. Key Responsibilities • Design and build LLM-powered systems including RAG pipelines and conversational AI tools • Develop production ...

AI Developer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£585/day
Role: AI Developer Location: London - up to 3 days per week on-site Duration: 3 Months Day rate: £540 - £585 Umbrella Only Minimum of 5 years UK residency required Role Description: We're looking for ...

Senior / Lead Data Scientist

Hiring Organisation
PaymentGenes
Location
City of London, London, United Kingdom
goes beyond model experimentation! You will design, deploy, and scale AI-driven solutions using modern foundation models and AWS-native machine learning infrastructure. From LLM-powered agents to predictive models embedded in automated workflows, your work will directly influence business operations at scale. You’ll operate at the intersection … modelling, engineering, and intelligent automation. 🌐 What You’ll Do 🧠 Model Development & AI Systems Design Design and train predictive models using AWS SageMaker Develop LLM-powered systems via AWS Bedrock (including Claude integration) Build RAG pipelines combining structured and unstructured data Develop evaluation frameworks for accuracy, bias, and robustness Apply best ...

Lead AI Engineer

Hiring Organisation
Sopra Steria
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Are you passionate about Artificial Intelligence and ready to lead from the front? Were looking for a Lead AI Engineer to join our AI and Data Practice at Sopra Steria. This is a hands-on ...

Artificial Intelligence Engineer

Hiring Organisation
HireWise
Location
City of London, London, United Kingdom
About Our Client Our client is a global leader in Digital Resilience, providing a cutting-edge platform that protects organizations from the most sophisticated cyber attacks. As an AI-first company, they are revolutionizing the ...

Generative BI & Insight Manager

Hiring Organisation
Accenture Song
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Generative BI & Insight Manager (CL7) Practice: Data & AI London, Manchester or other UK locations Accenture Song accelerates growth and value for our clients through sustained customer relevance. Our capabilities span ideation to execution: growth, product ...

AI Data Engineer for Private Credit

Hiring Organisation
Winston Fox
Location
City of London, London, United Kingdom
influence capital allocation decisions. The Mandate Design and build the data infrastructure that will power: AI-assisted underwriting Portfolio risk surveillance Automated covenant monitoring LLM-driven document intelligence Proprietary credit analytics You will work directly with investors deploying capital — not in a siloed tech team. Your work will influence live … from loan systems and financial data Structure complex borrower reporting (financial statements, PDFs, credit memos) Design clean datasets for predictive credit risk models Enable LLM/RAG pipelines for document intelligence Implement data quality, validation, and monitoring frameworks Partner with credit investors to translate underwriting logic into data systems This ...

Head of Data Science

Hiring Organisation
Propel
Location
City of London, London, United Kingdom
Head of Data Science 📍 Flexible/Hybrid | Early-Stage | High Impact 🚀 The Future of Fashion Discovery As a female-founded startup at an exciting inflection point, we’re shaping something genuinely game-changing. This isn ...

Senior Data Scientist

Hiring Organisation
Albert Bow
Location
City of London, London, United Kingdom
Full Stack Data Scientist London (Hybrid) Salary 140,000 to 150,000 plus equity Our client is a hyper growth AI company building an enterprise scale workflow platform used by major financial institutions. Backed by ...

Founding Engineer

Hiring Organisation
Fleetcraft
Location
City of London, London, United Kingdom
We're a small team of engineers and scientists trying to create a golden age in aviation by reshaping how aircraft are built and maintained. Fleetcraft’s mission is to enhance humanity’s access to ...

LLM, RAG & Agentic AI Engineer

Hiring Organisation
Staffworx
Location
City of London, London, United Kingdom
Senior LLM, RAG & Agentic AI Consulting Engineer - Lead/Senior FDE Remote First, some trips to client offices and HQ Lead the design and delivery of complex, AI-native client engagements, spanning agentic systems, retrieval architectures and semantic layers. This is a senior, hands-on consulting role combining deep technical … solutions. Key Accountabilities Client-Facing AI Engineering & Agentic System Design You will design and deliver production-grade AI systems for external clients, including: LLM applications using modern orchestration patterns, prompt frameworks and evaluation loops Multi-agent architectures, including planning, delegation, safety constraints and monitoring Retrieval and vector-based systems, embeddings ...

LLM, RAG & Agentic AI Engineer – Insurance Sector

Hiring Organisation
Staffworx
Location
City Of London, England, United Kingdom
LLM, RAG & Agentic AI Engineer – Insurance Sector Occasional travel client offices and two trips to London HQ per month Role Overview Lead the design and delivery of AI-native transformation initiatives for insurance clients, spanning agentic systems, retrieval architectures, semantic layers and decision intelligence. This is a senior, hands … Consulting Engineer is a hands-on AI systems builder who combines engineering depth with commercial and product thinking to design, build and deploy LLM- and agent-driven solutions for insurers, brokers and value chain partners. You will work directly with senior insurance stakeholders (Claims, Underwriting, Operations, IT, Risk, Compliance, Actuarial ...

Data Scientist - Global Investment Firm

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
They have built an internal data and technology function to support deal sourcing, due diligence, and portfolio insights, using modern data science and emerging LLM/NLP techniques. The team works closely with senior stakeholders and operates like a lean product and research group within a fast-paced commercial environment. … will work as a generalist Data Scientist, combining strong classical data science foundations with solid Python engineering and familiarity with modern ML/LLM tooling. The role is hands-on and delivery-focused, with opportunities to ship work into production and iterate quickly. Key responsibilities Build and prototype data science ...

AI MAAS Business Development Manager

Hiring Organisation
Alibaba Cloud
Location
City of London, London, United Kingdom
Key Responsibilities We are seeking an experienced Business Development Manager to drive the growth of our Model as a Service (MaaS) and AI solutions business in the UK market. This role focuses on AI Native ...

Senior AI Engineer

Hiring Organisation
Copa Resourcing Group LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
Language Models (LLMs). This is a hands-on senior role focused on building scalable, enterprise-ready AI solutions. Key Responsibilities Design and implement LLM-powered applications Build and optimise RAG (Retrieval Augmented Generation) pipelines Develop AI agents with tool integration and multi-step workflows Engineer scalable Python-based services … preferred) Contribute to best practices across evaluation, monitoring and reliability Provide technical guidance within a growing AI function Required Experience Strong commercial experience building LLM-driven systems Hands-on RAG architecture implementation Solid Python software engineering background Experience with frameworks such as LangChain, LlamaIndex or similar Exposure to vector databases ...

Enterprise Data Architect

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Enterprise Data Architect Key Responsibilities Lead end-to-end machine learning solution delivery for complex enterprise use cases Translate ambiguous business challenges into structured ML problem statements and solution architectures Design, develop, and optimise advanced ...

Senior Platform Engineer

Hiring Organisation
collects.io
Location
City of London, London, United Kingdom
engineer on production deployment of AI/ML models and agentic workflows: containerisation, versioning, controlled rollouts, and regression testing. • Implement operational controls for LLM usage in production: rate limiting, cost monitoring, caching, audit trails, and safe fallback behaviour. • Support evaluation and testing infrastructure for ML components alongside the ML engineer. … fintech, payments, or financial services – you understand why idempotency, audit trails, and data integrity matter more here than in most domains. • Familiarity with LLM/AI production operations: model versioning, evaluation pipelines, cost management, safe rollout patterns. • Experience with third-party API integrations at scale, including handling real-world failure ...

Senior Fullstack Engineer (Remote UK)

Hiring Organisation
TalentCo
Location
City of London, London, United Kingdom
TalentCo are delighted to be working with a fast-growing Agentic AI startup looking to hire a high-calibre Senior Fullstack Engineer into their growing engineering team in Europe, having recently closed a significant seed ...