Latest Large Language Models (LLM) Jobs

Spotlight

Senior AI Engineer

The role involves developing emotionally responsive virtual humans using AI to enhance soft-skills training. You'll work across the full AI stack—integrating large language models with speech and vision systems—to create realistic, interactive simulations. The position emphasizes research-to-product development, rigorous evaluation, and cross-disciplinary collaboration in a socially impactful startup environment.

Bodyswaps London, United Kingdom

Hybrid Permanent

Spotlight

Data Engineer - Level 5 Coach - Fully Remote

This role involves coaching and mentoring working professionals through a Level 5 Data Engineering apprenticeship programme, helping them develop technical and professional skills in data engineering. You'll deliver 1:1 coaching, lead workshops, and guide learners in building secure, scalable data solutions using modern cloud platforms and tools. The position blends deep technical expertise with teaching and mentorship, focused on real-world application and ethical data practices.

Corndel London, United Kingdom

Remote Permanent

Senior Network Solution Architect

This role involves designing and delivering end-to-end networking solutions that integrate NVIDIA GPUs and networking technologies for cloud, AI, HPC, and enterprise customers. The architect will define reference architectures, lead technical pre-sales engagements, respond to RFPs, conduct product demonstrations, and provide technical leadership during complex deployments. Close collaboration with sales, engineering, and product marketing teams ensures customer requirements inform product development and strategy.

NVIDIA Cambridge, United Kingdom

Senior Network Solution Architect

Design and implement end-to-end data center networking solutions integrating NVIDIA GPUs and networking technologies for cloud, HPC, telco, and enterprise clients. Lead technical pre-sales engagements, develop custom proofs-of-concept, and support complex deployments while providing feedback to engineering teams on product improvements. Focus on AI factories, LLMs, and high-performance networking architectures.

NVIDIA Reading, United Kingdom

Research Scientist/Engineer - Multimodal AI & LLM

Research Scientist / Research Engineer - Multimodal AI & Large Language ModelsLocation: LondonSalary: £(phone number removed) per annum + permanent benefits + bonusJob Type: Permanent, Full-Time, On-siteAbout the OpportunityWe are partnering with an innovative research organisation at the forefront of...

Adecco London, United Kingdom

AI Security Software Engineer (GenAI & LLM Security)

This role involves designing and building secure platforms to protect enterprise Generative AI and Large Language Model (LLM) applications from emerging threats such as prompt injection and adversarial inputs. The engineer will develop automated security testing frameworks, create robust APIs, and contribute to cloud-native, distributed systems operating at scale. Collaboration with global engineering, cybersecurity, and operations teams is central, with an emphasis on shaping secure AI adoption through resilient software design and best practices in AI security and DevSecOps.

83zero London, City And County Of the City Of London, United Kingdom £85,000 – £90,000 pa

Hybrid Permanent

Researcher, Training - London

A research-focused role advancing large language model development through architecture innovation, optimization, and scaling. The position involves designing and evaluating novel model architectures, debugging training regressions, and improving both model and computational performance. Work is integrated within a hybrid (3 days in-office) setup in London, contributing to core training infrastructure and flagship AI systems.

OpenAI London, United Kingdom

Hybrid Permanent

AI Engineer

Design and build generative AI applications, intelligent assistants, and automation solutions using LLMs, RAG, and agentic AI frameworks. Work within a major enterprise AI programme for a global bank, integrating AI services via APIs and cloud platforms while supporting engineering teams in adopting cutting-edge AI technologies. Focus on real-world deployment of copilots and AI-driven workflows.

DCV Technologies London, United Kingdom £600 – £650 pd

Hybrid Contract Clearance Required

Senior Machine Learning Scientist

Design and optimize machine learning models and LLM-powered systems for real-world NLP and Generative AI applications. Develop retrieval pipelines, evaluation frameworks, and semantic search solutions in collaboration with engineering and product teams. Work in a research-driven environment focused on agentic AI and advanced information retrieval.

Harnham - Data and Analytics Recruitment London, United Kingdom £80,000 – £95,000 pa

Senior AI Developer

Design and deliver production-grade AI solutions integrating large language models, agentic systems, and Azure AI services for client-facing projects. Lead technical implementation across full-stack environments, architect LLM-powered features, and establish reusable patterns and tools. Mentor developers and contribute to research, prototyping, and technical proposals in a consultancy setting.

Reed Technology Reading, Berkshire, United Kingdom £80,000 – £85,000 pa

Hybrid Permanent

Senior AI Engineer - Perm UK

Design and build scalable AI data pipelines and cloud-native systems to productionise machine learning and NLP models. Collaborate with data scientists and engineers to transform research into secure, high-performance AI services using modern MLOps practices. Work with cutting-edge technologies including LLMs, vector databases, and retrieval-augmented generation in a remote-first, innovation-driven environment.

Infused Solutions London, United Kingdom £65,000 – £80,000 pa

Remote Permanent

Research Engineer, Machine Learning (Reinforcement Learning)

This role involves advancing reinforcement learning in large language models, focusing on developing agentic systems for computer use, code generation, and reasoning. The engineer will build scalable RL infrastructure, design training environments, and collaborate across research and engineering to implement safety and performance improvements at scale.

Anthropic London, United Kingdom £260,000 – £630,000 pa

Software / AI Engineer

This role involves full-stack development with React, C#, and .NET, integrating large language models directly into live products used by thousands of customers. The engineer will work on securing model outputs, building scalable features, and enhancing AI-driven functionality within established industry software. Based in Hungerford, the team values practical AI integration over theoretical experience.

Searchability Hungerford, United Kingdom £50,000 – £800,000 pa

Senior AI Engineer

Lead the design and deployment of scalable AI and generative AI solutions, including LLM-based applications for enterprise search, document summarization, and conversational AI. Drive innovation through retrieval-augmented generation (RAG) architectures and mentor engineering teams in transformer models and prompt engineering. Collaborate across data, ML, and business teams to deliver measurable impact using cloud AI platforms and MLOps practices.

Appcast Enterprise Cork, United Kingdom

Data Scientist (Assistant Manager/Manager)

This role involves building and deploying data science, machine learning, and simulation models to help organisations make high-value strategic decisions. You'll work hands-on with advanced techniques including forecasting, optimisation, and AI, with a strong focus on LLM-based solutions such as RAG, fine-tuning, and agent-based workflows. The role blends technical delivery with direct stakeholder engagement, requiring translation of complex outputs into actionable business insights across diverse industries.

Yolk Recruitment London, United Kingdom £70,000 – £80,000 pa

Hybrid Permanent

Senior ML Engineer

Design and deploy production-grade NLP systems and large language models tailored for financial services, with a focus on scalability, data governance, and regulated environments. Develop fine-tuned, low-latency AI workflows integrated into cloud infrastructure, while mentoring engineers and advancing evaluation methodologies for LLM outputs. Work across the full ML lifecycle from research to deployment in a remote-first, innovation-driven team.

Aveni United Kingdom

Remote Permanent

Research Engineer, Pretraining Scaling - London

This role involves owning critical parts of Anthropic's production pretraining pipeline for large language models, focusing on reliability, performance optimization, and debugging across hardware, networking, and training dynamics. The engineer will run experiments to improve training efficiency, respond to incidents during model launches, and collaborate closely with research and systems teams. It’s a high-impact, operational role blending deep technical engineering with empirical research in a fast-paced, safety-focused AI environment.

Anthropic London, United Kingdom £260,000 – £630,000 pa