Machine Learning Jobs

Economist , Economic Decision Science

This role involves working on complex business problems related to Amazon Retail’s global product assortment. You will develop econometric models and experiments to measure customer and financial impacts, collaborate with interdisciplinary teams, and influence business decisions based on empirical findings.

Amazon London, United Kingdom

On-site Permanent

Research Engineer, Machine Learning (Reinforcement Learning)

This role involves collaborating with researchers and engineers to advance the capabilities and safety of large language models through reinforcement learning. Responsibilities include developing core RL infrastructure, designing novel training environments, and optimizing performance across the stack.

Anthropic London, United Kingdom

On-site Permanent

Research Engineer, Machine Learning (RL Velocity)

As a Research Engineer on the RL Velocity team, you will focus on building and improving the RL training infrastructure, identifying and removing bottlenecks, and partnering with researchers and engineering teams to enhance the efficiency and reliability of Anthropic's AI systems. This role involves high-leverage work that impacts the entire organization's ability to iterate and improve models quickly.

Anthropic London, United Kingdom £370,000 – £630,000 pa

Hybrid Permanent

Talent Pool

This role involves joining Relation Therapeutics' talent pool for potential future opportunities in computational and discovery roles within life sciences, research, and ML engineering. The company is focused on developing transformational medicines using cutting-edge technology and machine learning, with a strong emphasis on interdisciplinary collaboration and innovation.

Relation Therapeutics London, United Kingdom

On-site Permanent

Senior Data Scientist

This role involves designing and building Generative AI and LLM-based solutions for synthetic data generation and data augmentation. You will work closely with Product and Engineering to take models from experimentation to production, ensuring data quality and reliability, and communicating technical concepts to non-technical stakeholders.

Harnham - Data and Analytics Recruitment London, United Kingdom £80,000 – £95,000 pa

Remote Permanent

Data Engineer (AWS & Kinesis)

This role involves designing and maintaining large-scale data pipelines, optimizing AWS Redshift for performance and cost, and building ML-friendly datasets. You'll work on greenfield projects and integrate new data sources, taking ownership from proof-of-concept to production.

Harnham - Data and Analytics Recruitment London, United Kingdom £70,000 – £90,000 pa

Hybrid Permanent

Pega Customer Decision Hub Consultants

Work on designing, scaling, and optimising Pega-based Next Best Action decisioning frameworks in the financial services sector. Develop and govern real-time, AI-driven customer decision strategies across multiple markets, integrating with data platforms and ensuring regulatory compliance. Collaborate in cross-functional Agile teams to deliver personalised customer experiences through omni-channel decisioning.

eFinancialCareers London, United Kingdom

Remote Contract

Senior Cloud Platform Engineer

This role involves designing cloud-native platform architecture on AWS, building reusable Terraform modules and CI/CD pipelines, and supporting AI/ML workloads in production. The focus is on standardisation, scalability, and embedding SRE principles across services.

True North Group London, United Kingdom £85,000 – £110,000 pa

Hybrid Permanent

Engineering Manager

Lead the creation of a new engineering team focused on building scalable Python-based platforms, APIs, and data integrations that power enterprise AI initiatives. Drive technical strategy, team culture, and delivery processes while collaborating with product, data, and architecture stakeholders. This role is foundational in shaping the engineering foundation for advanced analytics and AI tooling across the organisation.

Method Resourcing London, United Kingdom £140,000 pa

Hybrid Permanent

Data Engineer

As a Data Engineer at Clariti AI, you will play a key role in improving the production quality of the company's price optimization software. Responsibilities include building and optimizing ETL/ELT pipelines, scaling infrastructure, and collaborating with clients on pricing decisions. The role offers significant growth opportunities and involvement in various aspects of the business.

Step 2 Recruitment LTD London, United Kingdom £50,000 – £85,000 pa

Hybrid Permanent

Senior Security Engineer - AI Products & Platforms - Citi

Discover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow...

eFinancialCareers London, United Kingdom

Senior Pricing Analyst

This role involves building and validating pricing models for motor and P&C insurance using machine learning and statistical methods. You'll work closely with underwriting, product, risk, and technology teams to translate complex analysis into actionable business decisions and support new product development.

GerrardWhite London, United Kingdom £50,000 – £65,000 pa

Hybrid Permanent

Data Platform Design Lead

This role involves designing and evolving Gallagher Re's data platform to support operational, transactional, and analytics data. Key responsibilities include strategic design, data governance, and enabling advanced capabilities in AI and ML, while fostering collaboration and data literacy across the organization.

Appcast Enterprise London, United Kingdom

On-site Permanent

Senior Software Engineer

This role involves building and evolving backend services for AI-driven products used by global media organizations. You will focus on scalability, performance, and reliability, working closely with Product and Data Science teams to enhance the platform's core systems.

Identify Solutions London, United Kingdom £70,000 – £85,000 pa

Hybrid Permanent

AI Researcher (On-Device)

This role involves leading the architecture and development of AI capabilities within the company's operating system. Responsibilities include optimizing system performance, resource management, and power consumption, as well as designing scalable application frameworks and integrating new AI technologies. The position requires deep expertise in AI, operating system architecture, and industry trends.

MicroTech Consulting London, United Kingdom

On-site Permanent