Artificial Intelligence Jobs

• London
• Hybrid · 3 days in office
• Senior · manages people

Lead and contribute to core machine learning research applying large language models to drug discovery, developing and refining LLM-driven approaches across biology and chemistry problems. Work spans post-training, reasoning, test-time scaling, tool-use, alignment, agents, reinforcement learning and fine-tuning, with model training and inference engineering at scale. Interdisciplinary collaboration with research scientists and engineers, plus technical mentorship and project leadership depending on experience.

JAX · PyTorch · TensorFlow +3

• United Kingdom
• Remote
• Senior

Acts as the primary technical contact for academic and research partners, embedding NVIDIA's frameworks and software stack into large-scale AI and HPC workloads. Drives joint research projects, delivers workshops and trainings, and feeds researcher needs back to engineering. Requires deep LLM lifecycle expertise across multi-node systems and involves around 30% travel.

NVIDIA AI Enterprise · NeMo Framework · Megatron Bridge +7

• London
• On-site
• £130,000 – £180,000 pa
• Director · manages people
• Permanent

Lead the entire AI research strategy for a financial crime intelligence business, owning build-versus-buy decisions across LLMs, vision models and agentic systems. Build and manage a team of researchers and ML engineers while staying hands-on with fine-tuning, distillation, evaluation and explainability standards for regulated environments.

LLMs

• London
• Remote
• £120,000 – £150,000 pa
• Director · manages people
• Permanent

Lead a multidisciplinary AI and engineering team, owning the architecture, strategy and performance of an end-to-end LLM-powered game generation pipeline. Define evaluation frameworks, benchmarking and playability testing, and drive model routing, optimisation and cost reduction. Works closely with product, engineering and game design teams.

• London
• Hybrid
• £80,000 – £90,000 pa
• Senior
• Permanent

This role involves designing and scaling Azure Databricks-based data platforms, building robust data pipelines, and developing AI and LLM-powered capabilities. You will work closely with Product, Engineering, and Business stakeholders to deliver data products that support commercial decision-making and optimize cloud environments for performance and cost.

• Rugby
• Remote
• £160,000 pa
• Lead
• Permanent

Hands-on staff-level engineering role building production systems in Go, with React and TypeScript work, on an AI infrastructure team's agentic development experience. You'll shape the agent harness, integrations and workflows connecting agents to real development environments, evolving execution, tool use, context management and streaming while setting technical direction.

Go · React · TypeScript +3

• London
• Hybrid · 3 days in office
• Lead · manages people
• Permanent

Hands-on tech lead for Uncheck, an accounting disclosure product, owning the technical plan and delivery as it scales across customers and regions. Writes production code, reviews others' work, and leads how the team builds with AI agents, including safe review and testing of agent-written code. Mentors engineers and leads technical conversations with enterprise IT, security and architecture teams.

AWS · Python · LLMs

• London
• Senior

Builds full-stack AI applications directly alongside public sector clients, scoping requirements, gathering feedback and shipping production-grade systems. Work spans React and TypeScript front ends, Python/Node backends, and cloud infrastructure on AWS, Azure or GCP, with a focus on reusable platform features and deploying into customer environments.

React · TypeScript · Next.js +7

• London
• On-site
• Entry level
• Permanent

Labelling and evaluating text, speech, image and video data to improve Alexa's performance, acting as a subject matter expert for ML data workflows. The role involves quality checks, root cause analysis, and suggesting process improvements while maintaining strict confidentiality. The team works on-site Monday to Friday in eight-hour shifts.

Alexa

• London
• Hybrid
• £600 – £644 pd
• Mid-level
• Contract

Builds production-grade GenAI and Agentic AI products within a product squad, using LLMs, RAG and agentic workflows. Requires strong Python engineering plus LangGraph, vector search, evaluation and Azure AI services to deliver secure, maintainable AI applications.

Azure · Azure OpenAI · Azure AI Search +7

• London

Owns the product capability for post-training LLMs, turning research methods into deployable model improvements for customers. Builds reliable training harnesses covering data prep, evaluation and serving, applying SFT, preference optimisation, RLHF/RLAIF, distillation and verifier-based approaches. Works closely with Research and platform teams, with a roadmap spanning SaaS, VPC and air-gapped deployments.

PyTorch · LLMs · SaaS +1

• Southampton
• On-site
• £46,970 – £49,798 pa
• Senior · manages people
• Contract

Lead a translational research project extracting structured clinical findings from electronic health records using open-source large language models, harmonising them to ontologies such as HPO, SNOMED CT and ICD-10. Develop reproducible LLM-based pipelines on high-performance computing, integrate clinical and genomic data for autoimmune disease diagnostics, and manage early career researchers within a multidisciplinary team.

IRIDIS · HPO · SNOMED CT +6

• United Kingdom
• Remote
• Lead

Customer-facing technical authority on Generative AI, LLMs and applied ML for digital-native and startup accounts across EMEA. Shapes architectures, builds hands-on proofs of concept and reference implementations on Databricks (Mosaic AI, MLflow, Model Serving, Vector Search, Unity Catalog), and leads fine-tuning and evaluation engagements on open models. Also mentors the field engineering organisation and represents the company externally through talks and blogs.

Databricks · Mosaic AI · MLflow +7

• London
• Hybrid
• £165,000 – £190,000 pa
• Senior

Pre-sales architect role acting as a trusted technical advisor to large enterprises, helping them integrate and deploy Claude into their technology stacks. Involves technical discovery, designing scalable LLM architectures, building evaluation frameworks, and delivering content from engineering deep dives to executive conversations, working closely with Sales, Product and Engineering.

Claude · Claude API · Claude for Work

• London
• Hybrid
• £165,000 – £190,000 pa
• Senior

Technical partner to startup founders and engineers building on the Claude Developer Platform, guiding them from technical discovery through deployment. Combines hands-on LLM architecture, evaluation frameworks and Python work with winning technical evaluations alongside Account Executives.

Claude · Claude Developer Platform