Latest LLM Engineer Jobs

Compiler Engineer - AI Inference

Develop and optimize compilers for AI inference workloads on next-generation NVIDIA GPUs, focusing on kernel generation, computational graph optimizations, and hardware-software co-design. Collaborate with cross-functional teams to advance AI performance and scale across datacenters. Work at the forefront of compiler innovation for deep learning and AI architectures.

NVIDIA Cambridge, United Kingdom

Software Engineer

This role involves full-stack development across backend, database, and frontend applications, working with Adobe ColdFusion (CFML), MySQL, and React/TypeScript. You'll collaborate with various teams to build and maintain a multi-tenant SaaS platform, integrate with machine learning services, and contribute to CI/CD pipelines and code reviews.

Oliver James M53Ed, United Kingdom £60,000 pa

Software Engineer

This role involves building and owning core platform capabilities, including application infrastructure, APIs, and shared services. You will develop full stack applications using Python, React, and TypeScript, and integrate AI and LLM-powered workflows into production environments. The position offers significant ownership and the chance to influence technical direction within a high-performing AI and innovation team.

Harnham - Data and Analytics Recruitment Usa, United Kingdom US$200,000 – US$225,000 pa

Software Engineer (Python and AI Solutions)

This role involves designing, developing, testing, and maintaining robust software applications using Python and AI technologies. You will work with generative AI tools, provide technical guidance, and ensure compliance with security policies. The position offers the opportunity to influence digital innovation and shape the University's technology landscape.

University of the Built Environment Rg14Bs, United Kingdom £40,000 – £45,000 pa

Compiler Engineer - AI Inference

This role involves developing advanced compiler technologies for AI inference and training workloads, focusing on kernel generation and computational graph optimizations for NVIDIA's GPUs. You'll solve complex compilation challenges, collaborate on hardware-software co-design, and help scale AI workloads across datacenters. The position emphasizes innovation in MLIR-based frameworks and optimizing performance on cutting-edge GPU architectures.

NVIDIA United Kingdom

AI Engineer - Startups & Partnerships - Citi

As an AI Engineer on Citi's Startups & Partnerships team, you will build and deploy production-grade AI applications, evaluate emerging AI technologies, and integrate solutions across the enterprise stack. You'll work closely with business stakeholders and startups to rapidly prototype and deliver impactful AI solutions at a global scale.

eFinancialCareers Belfast, United Kingdom

Senior Software Engineer, Chem-Bio

Design and build core platform systems to support technical research on AI-related chemical and biological risks, translating ambiguous research needs into scalable, maintainable software solutions. Work within a multidisciplinary team to develop LLM-based agent systems, evaluation frameworks, and shared infrastructure while mentoring engineers and shaping technical direction. Operate in a high-impact environment with direct influence on AI policy and global governance.

AI Security Institute London, United Kingdom

On-site Permanent Clearance Required

Senior Software Engineer – Python

As a Senior Software Engineer in Medtronic's AI and Data Science Platform team, you will design, build, and maintain software solutions that enable machine learning engineers and data scientists to develop new products. You will work on a SaaS tool for project, data, and annotation management, collaborate with data and platform engineers, and ensure high-quality, scalable software delivery.

Medtronic London, United Kingdom £76,800 – £115,200 pa

Senior ML Engineer, Doc Extraction

As a Senior ML Engineer on the Document Extraction team, you will build and optimize production ML systems for identity verification, working closely with cross-functional teams to deliver high-accuracy document classification and extraction solutions. You'll lead technical design, champion performance, and mentor other engineers.

Entrust London, United Kingdom

Senior ML Engineer, Doc Extraction

This role involves building and optimizing production ML systems for document extraction and verification, working closely with cross-functional teams to deliver high-accuracy solutions. The Senior ML Engineer will lead technical design, optimize ML pipelines, and mentor other engineers.

Entrust Portugal

Senior Security Engineer (AI Safety), London, Lausanne

This role involves securing AI-first drug discovery platforms by designing risk frameworks, protecting ML model artifacts, and implementing security controls across distributed training and inference systems. The engineer will lead AI-specific incident response, develop guardrails for LLMs and autonomous agents, and ensure compliance with global regulations like the EU AI Act. Close collaboration with ML researchers and platform teams is essential to embed security into the full AI lifecycle while advancing AI safety standards.

Isomorphic Labs United Kingdom

Hybrid Permanent

Applied AI Engineer, Codex Core Agent

This role involves improving the performance of Codex agents on real-world software engineering tasks, working closely with research, infrastructure, and product teams. Responsibilities include designing agent behaviors, evaluating performance, enhancing robustness, and building feedback loops to improve agent reliability and usefulness.

OpenAI London, United Kingdom

Permanent

Machine Learning Engineer (Safety)

As a Machine Learning Engineer, you will build and deploy production-grade ML systems, collaborate with cross-functional teams to solve critical client challenges, and lead technical scoping and architectural decisions. You will work on high-stakes, high-impact missions in national security and AI safety, ensuring AI is secure, trustworthy, and safe for all.

Faculty London, United Kingdom

Hybrid Permanent

Senior Software Engineer (Safety)

As a Senior Software Engineer, you will lead the development and deployment of cutting-edge AI systems for high-impact missions. You will design and build scalable, production-grade ML software and infrastructure, collaborate with cross-functional teams, and mentor junior engineers.

Faculty London, United Kingdom

Permanent

AI Research Engineer

This role involves building, evaluating, and improving AI systems across large language models, agentic workflows, and computer vision. You'll work closely with engineering and product teams to develop robust AI solutions for financial crime compliance, with significant ownership over AI development and the chance to influence product direction.

Rise Technical Recruitment London, City And County Of the City Of London, United Kingdom £80,000 – £120,000 pa