Latest LLM Engineer Jobs

Spotlight

Senior ML Runtime Engineer

At Fractile, we’re taking a revolutionary approach to computing to run the world’s largest language models 100x faster than existing systems. Our fast-growing team is working at the cutting edge of the latest AI developments in both hardware and software....

Fractile London, United Kingdom

AI Engineer - up to+ Bonus + Benefits - Belfast

This role involves designing and deploying large language model (LLM) applications, integrating generative AI into enterprise systems, and building scalable AI-driven solutions for real-time, high-volume use cases. The engineer will work closely with stakeholders to translate business requirements into AI solutions, focusing on prompt engineering, model optimization, and ensuring alignment with security and governance principles.

Involved Solutions Ireland, Alba / Scotland, ZE2 9GA, United Kingdom £60,000 – £80,000 pa

Hybrid Permanent

AI Engineer

The AI Engineer will work on cutting-edge financial technology projects, designing and integrating AI/ML solutions into production systems. Responsibilities include collaborating with engineering and product teams, optimizing LLM performance, and contributing to architecture and deployment workflows.

Fraser & Co. Talent Partners Limited St Paul's, City And County Of the City Of London, EC4M 9AD, United Kingdom £45,000 – £65,000 pa

Hybrid Permanent

Software AI Engineer

This role involves working in a high-growth scale-up focused on national security innovation, collaborating with industry partners to develop and deploy cutting-edge AI and machine learning solutions. The Software AI Engineer will have end-to-end project exposure, work in a collaborative and autonomous environment, and benefit from extensive career development opportunities.

SF Partners Birmingham, United Kingdom £60,000 – £70,000 pa

Permanent Clearance Required

Software AI Engineer

This role involves working in a R&D team to develop cutting-edge AI and machine learning solutions for national security applications. The Software AI Engineer will collaborate with industry partners, have end-to-end project exposure, and benefit from a highly autonomous and collaborative environment.

SF Partners Rubery, West Midlands (county), B45 9FH, United Kingdom £60,000 – £70,000 pa

Hybrid Permanent Clearance Required

Python Engineer

This role involves designing, building, and deploying AI-driven applications using Python, FastAPI, and Azure. You will work on API design, data access, AI integration, and cloud deployment, collaborating with product owners and data engineers to translate business requirements into secure, scalable solutions.

Harvey Nash Birmingham, United Kingdom £65,000 pa

Hybrid Permanent

AI Engineer

As an AI Engineer, you will be the first dedicated hire focused on expanding and scaling AI across the organization. Your key responsibilities will include designing and building AI solutions for customer analytics, affordability, collections, and payments, as well as developing generative AI and LLM use cases. You will also create internal AI tools, support governance, and collaborate with engineering teams to modernize legacy systems and embed AI into core platforms.

Harnham - Data & Analytics Recruitment Grimsby, DN31 1EW, United Kingdom £70,000 – £90,000 pa

Hybrid Permanent

AI Engineer - Cardiff

This role involves leading the design, development, and deployment of advanced AI solutions to enhance operational efficiency and support business growth. You will collaborate with senior stakeholders, guide technical direction, and mentor a team of engineers while ensuring systems are secure, scalable, and compliant.

Circle Recruitment Cardiff, Cymru / Wales, CF10 2AF, United Kingdom £40,000 – £55,000 pa

Hybrid Permanent

Senior Python Engineer

This role involves designing, building, and deploying AI-driven applications and services using Python, FastAPI, and Azure. You will work on API design, data access, AI integration, and cloud deployment, collaborating with product owners and data engineers to translate business requirements into scalable, secure solutions.

Harvey Nash Birmingham, United Kingdom £70,000 pa

Hybrid Permanent

ML Engineer

As an ML Engineer, you will design and build autonomous AI agents using LLMs and advanced reasoning frameworks. Your role involves implementing RAG pipelines, fine-tuning models, and ensuring robust ETL/ELT pipelines. You will also focus on responsible AI practices, optimizing data workflows, and working with cutting-edge LLM architectures in a high-stakes, real-world environment.

Randstad Technologies Recruitment London, City And County Of the City Of London, United Kingdom £450 – £500 pd

Hybrid Contract

AI Engineer

This role involves designing and implementing AI-driven solutions to automate core business workflows in a motor insurance company. You will work closely with engineering, operations, and compliance teams to ensure solutions are secure, explainable, and compliant, with a focus on contact centre transcription, automated account summaries, and deal payout validation using multiple LLMs.

Harnham - Data & Analytics Recruitment Lincolnshire, United Kingdom £70,000 – £90,000 pa

On-site Permanent

Research Engineer/Research Scientist – Model Transparency

About the AI Security InstituteThe AI Security Institute is the world's largest and best-funded team dedicated to understanding advanced AI risks and translating that knowledge into action. We’re in the heart of the UK government with direct lines to No....

AI Security Institute London, United Kingdom £40,000 – £70,000 pa

On-site Permanent

Software Engineer, Front End Leaning (Accessibility)

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US.As AI continues to shape...

Synthesia London, United Kingdom

Remote Permanent

Solutions Engineer, Large Enterprise

About the TeamThe Technical Success team is responsible for ensuring the safe and effective deployment of ChatGPT and OpenAI API applications for developers and enterprises. We act as a trusted advisor and thought partner for our customers, ensuring developers and...

OpenAI United Kingdom

Hybrid Permanent

Solutions Engineer, Digital Natives

About the TeamThe Technical Success team is responsible for ensuring the safe and effective deployment of ChatGPT and OpenAI API applications for developers and enterprises. We act as a trusted advisor and thought partner for our customers, ensuring developers and...

OpenAI United Kingdom

Hybrid Permanent

AI Software Engineer

As an AI Software Engineer, you will lead the design and delivery of practical AI solutions, building and maintaining LLM-powered applications that support products and improve internal processes. You will collaborate with teams across the business to identify opportunities for AI improvements and establish best practices, ultimately shaping the company's AI strategy and direction.

Matched Group Warrington, United Kingdom £55,000 – £80,000 pa

Hybrid Permanent Flexible