Latest LLM Engineer Jobs

AI Infrastructure Engineer, Serving Platform

Design and build scalable, fault-tolerant systems for serving large language models (LLMs) in both research and production environments. Develop internal platforms for LLM capability discovery and integration, with a focus on performance, observability, and system health. Collaborate closely with researchers and engineers to optimize model deployment and support cutting-edge AI applications.

Scale AI London, United Kingdom

Senior MLOps Engineer - DSX Enablement

NVIDIA is seeking a Senior MLOps Engineer to join our DSX Enablement team, collaborating closely with strategic customers to implement and enhance groundbreaking AI workloads. We partner with the world's most innovative AI companies and open-source communities to address their...

NVIDIA Germany

Senior MLOps Engineer - DSX Enablement

This role involves building and deploying scalable AI solutions on cloud platforms, with a focus on MLOps pipelines, distributed training, and inference optimization. You'll act as a technical advisor for internal and external customers, solving complex full-stack AI system issues and contributing to open-source tools. The position emphasizes deep systems knowledge, performance tuning, and collaboration with infrastructure teams to support cutting-edge AI workloads.

NVIDIA PLN 292,500 – PLN 650,000 pa

Lead AI Engineer (Leeds / Edinburgh)

Lead the design and implementation of AI systems within a regulatory technology environment, focusing on LLM-enabled architectures, reusable solution patterns, and end-to-end technical delivery. Drive standards for prompt engineering, evaluation, and AI observability while collaborating with senior stakeholders across key regulatory domains. Work in a hybrid model with a strong emphasis on secure, scalable, and compliant AI deployment.

Hays Technology Leeds, West Yorkshire, United Kingdom £70,000 – £108,000 pa

Hybrid Permanent Clearance Required

AI Engineer

An AI Engineer will design, build, and ship full-stack applications using TypeScript and AWS, with a focus on rapid prototyping and AI-assisted development. The role involves creating AI and generative AI features, deploying cloud-native solutions, and collaborating across product, design, and data teams. The engineer will own features end-to-end in an Agile environment, balancing production code with fast iteration on new concepts.

167 Solutions Bristol, United Kingdom £40,000 – £70,000 pa

Hybrid Permanent

Agentic AI Engineer

Design and implement autonomous AI agents using Python and frameworks like LangGraph or LangChain, focusing on multi-step reasoning, tool interaction, and stateful workflows. Develop robust backend APIs that enable LLMs to perform function calling and integrate with enterprise systems. Optimize context management, retrieval-augmented generation (RAG), and prompt engineering for real-world AI applications.

Randstad Technologies Recruitment Burgess Hill, West Sussex, United Kingdom £75,000 – £80,000 pa

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

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

AI Software Engineer

Develop and maintain production-grade AI-powered software applications using machine learning and generative AI technologies. Work within a collaborative engineering team to build scalable backend services, integrate leading AI models like OpenAI and Anthropic, and deploy intelligent solutions on cloud platforms. Focus on delivering practical, enterprise-ready AI applications rather than research.

Oscar Technology Leicester, LE1 5YA, United Kingdom £65,000 – £75,000 pa

Senior AI Engineer

The Senior AI Engineer will design and develop production-grade AI systems, focusing on RAG pipelines, generative AI workflows, and LLM optimization. Key responsibilities include building scalable solutions, implementing retrieval strategies, and mentoring junior engineers within a growing AI team.

The Portfolio Group London, United Kingdom £80,000 pa

On-site Permanent

Forward Deployed Engineer - Cardiff

This role involves leading the design, development, and deployment of AI-powered solutions such as automation, RAG, and LLM-based workflows. The engineer will collaborate with stakeholders to deliver strategic AI initiatives, ensure systems are secure and scalable, and mentor a growing engineering team. The position is based in central Cardiff with hybrid working and focuses on building advanced AI capabilities within a technology-driven organisation.

Circle Recruitment Cardiff, Cymru / Wales, CF10 2AF, United Kingdom £45,000 – £53,000 pa

Hybrid Permanent

Senior AI Engineer

Design and implement end-to-end AI/ML systems using generative AI, LLMs, and agentic frameworks to extract insights from biomedical literature and data. Focus on production-grade reliability, model quality, and collaboration with product and engineering teams to deliver user-facing features. Mentor junior engineers and contribute to a culture of technical excellence and knowledge sharing.

Causaly London, United Kingdom

Hybrid Permanent

AI Platform Engineer

Design and operate a scalable AI platform supporting RAG pipelines, LLM orchestration, and vector search on Microsoft Azure and Microsoft Foundry. Focus on productionising prototypes into resilient, observable, and secure services using infrastructure-as-code, CI/CD, and cloud-native practices. Collaborate with AI Engineering, DevOps, and Info-Sec to ensure reliability, performance, and compliance at scale.

The Portfolio Group M43Bg, United Kingdom £80,000 – £100,000 pa

Lead Data Engineer

This role involves designing and building scalable data infrastructure for AI and real-time systems, with a focus on LLM-native workflows, vector retrieval, and ML data pipelines. The engineer will own data architecture, set technical standards, and shape the future data team while working directly with founders. It's a hands-on leadership role focused on foundational development rather than people management.

Nextech Sw111Aa, United Kingdom £150,000 – £165,000 pa

Forward Deployed Engineer

This role involves working directly with client teams to design, build, and deploy AI-driven solutions in live research environments. You will translate complex research questions into production-ready workflows, optimize LLM applications, and integrate data pipelines across cloud platforms. The role also includes collaborating with non-technical stakeholders and feeding learnings back into the product and engineering teams.

Harnham - Data and Analytics Recruitment Manchester, United Kingdom £80,000 – £130,000 pa

Remote Permanent