Jobs in Cardiff

Spotlight

Senior Machine Learning Scientist

This role involves developing and deploying custom machine learning and LLM-powered systems for customer feedback analysis, including fine-tuning, retrieval, summarisation, and agentic workflows. The scientist will lead experimentation, evaluation, and productionisation of models while mentoring team members and integrating cutting-edge AI research into real-world applications.

Chattermill London, United Kingdom

Remote Permanent

Spotlight

Senior ML Compiler 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 Bristol, United Kingdom

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

Data Scientist

This role involves developing and deploying machine learning and AI models to support risk management, compliance, and contractor analytics. You'll work closely with engineering and product teams, using modern cloud technologies like AWS, Azure, and Microsoft Fabric to build scalable solutions.

Yolk Recruitment Cardiff, South Glamorgan, CF10 2AF, United Kingdom £60,000 – £70,000 pa

Hybrid Permanent

Lead Data Scientist

This role involves leading technical decision-making and model deployment in data science, while coaching a team and driving NLP and LLM initiatives. You'll work closely with engineering, product, and operations teams to deliver production-ready ML solutions and improve model governance.

Yolk Recruitment Cardiff, Cymru / Wales, CF10 2AF, United Kingdom £100,000 – £110,000 pa

Hybrid Permanent

Full Stack Software Developer

As a Full Stack Software Developer, you will lead the development and quality of customer-facing bot experiences, ensuring they are performant and intuitive. You'll manage product backlogs, prioritize tasks, and oversee architecture and system performance, working with modern frontend and backend technologies and AWS services.

Reed Gu13He, GU1 3HE, United Kingdom £30,000 – £40,000 pa

On-site Permanent

Engineering Lead

This role involves leading a small team of engineers in developing and maintaining a composable, API-driven CMS. Key responsibilities include defining engineering standards, managing AI-driven development, and fostering a collaborative engineering culture. The position offers opportunities for professional growth and a strong benefits package.

Method Resourcing Cardiff, Cymru / Wales, CF10 2AF, United Kingdom £70,000 – £75,000 pa

Hybrid Permanent

Technical Architect

As a Technical Architect at DBT, you will lead the technical design and delivery of secure, user-centred digital services. You will work closely with development teams, contribute to portfolio-level strategy, and ensure alignment with organisational goals and standards. The role involves solving complex architectural challenges, providing technical governance, and mentoring peers.

Inspire People Birmingham, United Kingdom £67,867 – £85,413 pa

Hybrid Permanent Flexible Clearance Required

Technical Architect

As a Technical Architect at DBT, you will lead the technical design and delivery of secure, user-centred digital services. You will work closely with development teams, contribute to portfolio-level strategy, and ensure alignment with business goals and standards. The role involves solving complex architectural challenges, providing technical governance, and mentoring peers.

Inspire People Darlington, United Kingdom £67,867 – £85,413 pa

Hybrid Permanent Clearance Required

Research Assistant - Human Influence

The role involves designing and running studies to understand how frontier AI systems influence human attitudes and behavior, focusing on risks to human agency and wellbeing. You will work with top technical talent, run large-scale RCTs, and have the opportunity to lead or co-author publications.

AI Security Institute London, United Kingdom

On-site Contract Part-time

Expression of Interest- Red Team

The Red Team at the AI Security Institute conducts cutting-edge research to identify and mitigate vulnerabilities in advanced AI systems. The team collaborates closely with leading AI companies, UK officials, and allied governments to inform deployment, research, and policy decisions, focusing on misalignment, misuse, and control of AI systems.

AI Security Institute London, United Kingdom £65,000 – £145,000 pa

On-site Permanent Clearance Required