Latest LLM Engineer Jobs

Senior Deep Learning Software Engineer, Inference

This role involves designing, optimizing, and maintaining high-performance deep learning inference software for large-scale language and generative AI models. The engineer will work on GPU-accelerated frameworks like vLLM, SGLang, and FlashInfer, implementing cutting-edge algorithms and performance improvements across NVIDIA's full range of accelerators. Collaboration with open-source communities and cross-team partners is central to advancing model serving efficiency and deployment at scale.

NVIDIA PLN 221,250 – PLN 507,000 pa

Senior Deep Learning Software Engineer, Inference

Design and optimize GPU-accelerated deep learning inference software for large-scale language and generative AI models. Contribute to open-source frameworks like vLLM and SGLang, and implement performance improvements across NVIDIA's full range of accelerators from datacenter to edge. Work closely with research and engineering teams to profile, tune, and deploy state-of-the-art model serving solutions using CUDA, Triton, and other low-level optimization tools.

NVIDIA Netherlands

Applied AI Engineer, Startups

As an Applied AI Engineer at Anthropic, you will serve as a technical advisor to tech-forward companies, helping them build on the Claude Developer Platform. You'll work hands-on with customer engineering teams, develop custom evaluation frameworks, and create technical resources to enable successful AI applications.

Anthropic London, United Kingdom

Applied AI Engineer, Beneficial Deployments (Life Sciences - Clinical Trials/Drug Repurposing)

This role involves working with nonprofits, research institutes, and academic medical centers to deploy AI in clinical trials and drug repurposing for rare and neglected diseases. Responsibilities include designing and reviewing clinical trial protocols, building tools for drug repurposing, and developing reusable infrastructure.

Anthropic London, United Kingdom £225,000 – £255,000 pa

Senior Software Engineer

Design and build scalable, cloud-native systems and user interfaces that integrate LLM-powered capabilities into financial workflows. Work closely with AI and product teams to deliver production-ready agentic systems on AWS. Focus on event-driven microservices, React front-ends, and robust APIs using Node.js and TypeScript.

Aveni United Kingdom

Remote Permanent

Applied AI Engineer, Quants

This role involves working directly with quantitative investment and trading firms to apply OpenAI’s models and Codex to their research and development workflows. Responsibilities include identifying valuable opportunities, building and deploying AI systems, and guiding technical decisions to ensure production readiness and customer impact.

OpenAI London, United Kingdom

Hybrid Permanent

Machine Learning Engineer / ML Engineer - Roleplay Sessions

Build and improve the AI engine powering interactive roleplay training with AI avatars, focusing on real-time performance scoring, feedback generation, and dynamic response logic. Work on applied machine learning models integrated into a product-driven environment, collaborating closely with engineering and product teams to enhance learning-by-doing experiences. The role emphasizes fast iteration and delivering tangible impact through scalable AI systems.

Synthesia London, Europe, United Kingdom

Permanent

Misuse Red Team - Research Engineer/Research Scientist

This role involves researching and developing novel attack vectors against large language model safeguards to identify vulnerabilities before malicious actors can exploit them. You'll design automated attack systems, evaluate LLM robustness through methods like jailbreaking and data poisoning, and collaborate with leading AI labs to improve defenses. The work directly informs policy and safety practices at frontier AI companies and government levels.

AI Security Institute London, United Kingdom

Senior Machine Learning Engineer (Safety)

As a Senior Machine Learning Engineer, you will lead the development and deployment of cutting-edge AI systems for high-impact missions in national security and global stability. You will design, build, and deploy scalable, production-grade ML software and infrastructure, ensuring rigorous operational and ethical standards. You will also mentor junior engineers and collaborate with cross-functional teams to solve critical client challenges.

Faculty London, United Kingdom

Permanent

Senior AI Engineer

Build and ship end-to-end AI agent systems that transform how Multiverse operates, from context design and tool integration to evaluation and production operation. Work across the full stack to reinvent internal workflows and set the blueprint for AI-first companies. Use AI-assisted development with Claude Code and shape technical direction in a small, high-impact team.

Multiverse London, United Kingdom

Hybrid Permanent Clearance Required

Senior Applied AI Engineer

This role involves designing, building, and delivering backend services and APIs for an AI layer in an investment management firm's portfolio technology platform. You will work closely with a frontend engineer to integrate AI capabilities, ensure secure data handling, and monitor system performance.

Hays Technology London, United Kingdom £100,000 – £110,000 pa

Staff Full-Stack Software Engineer, (Forward Deployed), GPS

This role involves leading the design and implementation of full-stack AI applications for public sector clients, translating complex mission requirements into secure, scalable technical solutions. The engineer will work directly with government teams to build production-grade systems, integrate AI models with interactive UIs and backends, and establish reusable patterns from real-world deployments. It emphasizes architectural leadership, cloud infrastructure governance, and mentoring within high-impact, security-sensitive environments.

Scale AI London, United Kingdom

On-site Permanent Clearance Required

Engineering - Internal AI Transformation

As an Internal AI Engineer at ElevenLabs, you will design and implement AI-driven workflows to automate manual processes across various teams. You will work closely with business owners to identify pain points, build solutions, and ensure the reliability and safety of AI systems. Your role involves integrating AI tools with core business systems and developing reusable automation services.

ElevenLabs United Kingdom

Remote Permanent

Senior AI Automation Engineer |

This role involves designing and delivering production-grade AI applications, intelligent agents, and automated workflows within a large enterprise. Responsibilities include building Python services, APIs, and automation pipelines, integrating AI applications with existing platforms, and leading technical design discussions.

Method Resourcing Birmingham, United Kingdom £100,000 – £120,000 pa

Principal Data Engineer

As a Principal Data Engineer, you will lead the technical direction and architecture for complex data products and platforms, ensuring alignment with Sky's strategic objectives. You will mentor engineers, set engineering standards, and drive innovation in cloud-native and AI-ready solutions.

Appcastenterprise Livingston, Alba / Scotland, EH54 6GS, United Kingdom