Jobs in London

Mid Market Account Executive

This role involves managing the full sales cycle for Synthesia’s AI video platform within mid-market accounts (100–1,000 employees) across the US. The Account Executive will prospect outbound, qualify opportunities using MEDDPICC, and sell into diverse business functions including HR, Learning & Development, and Marketing. A key focus is expanding platform adoption across teams and building strategic account plans with a value-based, ROI-driven approach.

Synthesia Austin, Texas, United States

Hybrid Permanent

Senior Research Engineer - Data

This role focuses on building and enhancing large-scale data pipelines for generative AI models, working with vast amounts of video and audio data to improve model performance through data quality, curation, and feature extraction. The position bridges applied research, data engineering, and ML infrastructure, collaborating closely with model training teams to deliver high-impact datasets. It emphasizes ownership in shaping data strategy and infrastructure within a fast-moving AI research environment.

Synthesia London, United Kingdom

Remote Permanent

Senior AI Engineer

We have an exciting opportunity for a Senior AI Engineer (Manager) to join our IT (EA & Technology Platforms) team, based in A&O Shearman's Belfast or London office.What you will doReporting to the AI Platform Owner, this role will be...

A&O Shearman Skegoniel, County Antrim, United Kingdom

Senior AI Engineer

This role involves leading the technical strategy and implementation of AI and machine learning solutions across the firm, managing a team of IT professionals, and collaborating with senior stakeholders to align AI initiatives with business outcomes. The Senior AI Engineer will oversee the full lifecycle of AI systems, from model development to deployment, ensuring scalable architecture and integration with existing platforms. The position emphasizes leadership, innovation, and close engagement with both internal teams and external service providers.

A&O Shearman Glengormley, County Antrim, United Kingdom

Senior ML Engineer, Doc Fraud

Design and build production-grade machine learning systems for document classification and extraction, focusing on high accuracy and scalability across global identity documents. Work with LLMs and traditional ML models, optimize inference pipelines, and collaborate with cross-functional teams to enhance fraud detection and customer onboarding. Emphasis on technical leadership, system reliability, and mentoring within a squad-based engineering culture.

Entrust

Hybrid

Senior Solutions Architect, Higher Education and Research - Open Models and LLM

Act as a trusted technical advisor to academic and research institutions, driving adoption of NVIDIA's AI and accelerated computing technologies. Collaborate on large-scale research projects involving LLMs and HPC, develop prototypical solutions, deliver technical training, and bridge gaps between researcher needs and NVIDIA's platform capabilities. Engage with cutting-edge AI workloads across training, fine-tuning, and inference, while providing direct feedback to engineering teams.

NVIDIA

Senior Solutions Architect, Higher Education and Research - Open Models and LLM

This role involves partnering with academic and research institutions to advance AI and HPC workloads using NVIDIA's accelerated computing platform. The Solutions Architect will guide researchers in integrating NVIDIA technologies into large-scale projects, particularly around large language models and open models. Responsibilities include hands-on technical engagement, driving research collaborations, delivering training, and translating research needs into product feedback for engineering teams.

NVIDIA Cambridge, United Kingdom

Senior ML Compiler Engineer

Design and develop a high-performance machine learning compiler stack for novel AI accelerator hardware. Work closely with hardware, runtime, and ML teams in a full-stack co-design environment to optimise execution of large language models. Define core compiler architecture including IR, optimisations, and lowering strategies from the ground up.

Fractile London, United Kingdom

Senior Software Engineer I

This role involves leading the design and implementation of complex, cloud-native systems within a high-growth fintech environment. The engineer will drive technical direction, mentor senior teams, and solve ambiguous, large-scale problems across distributed services. Emphasis is placed on operational excellence, cross-team collaboration, and advancing Thought Machine's core banking platform through innovation in architecture and developer practices.

Thought Machine London, United Kingdom

On-site Permanent

Payroll Specialist

The Payroll Assistant supports global payroll operations across multiple regions, ensuring accurate and compliant processing in collaboration with external providers and internal teams. This role involves managing payroll timelines, statutory reporting, employee queries, and benefit alignment while contributing to process improvements and system implementations. It offers an opportunity to shape payroll scalability within a high-growth fintech with a strong engineering and compliance focus.

Thought Machine London, United Kingdom

On-site Permanent

Senior Software Engineer (Python)

This role involves prototyping and developing innovative cybersecurity solutions using AI, with a focus on enhancing Darktrace’s platform to detect and respond to unknown threats. You’ll work in a cross-functional R&D team, balancing creative exploration with structured development of scalable features. The position emphasizes ownership of novel projects, collaboration, and advancing core capabilities in Python and containerized environments.

Darktrace Cambridge, CB2 3BJ, United Kingdom

Modelling Engineer

Develop pre-silicon software models for AI accelerator hardware to support architecture design, performance evaluation, and early software development. Work closely with hardware, software, and ML teams in a collaborative co-design environment. Models will inform product design and enable verification prior to fabrication.

Fractile London, United Kingdom

Senior Machine Learning Research Engineer

Develop and scale generative and predictive machine learning models for cellular behaviour using multi-omic biological data. Build robust distributed training and inference systems, bridging ML research and production deployment in close collaboration with scientists. Optimize performance across compute, memory, and I/O while advancing core ML infrastructure in a highly interdisciplinary environment.

Relation Therapeutics London, United Kingdom

Permanent

Associate Director, Platform Engineering

Lead and develop the platform engineering team responsible for hybrid infrastructure, Kubernetes-based clusters, and scientific compute environments that support machine learning and drug discovery workflows. Define platform strategy, ensure robust CI/CD, observability, and security, and act as a technical leader across engineering and data science. The role involves shaping a developer platform tailored to computational scientists and genomic data pipelines in a high-impact TechBio environment.

Relation Therapeutics London, United Kingdom

Permanent

AI & Property Data Scientist - KTP Associate

Work on a 28-month KTP project to develop an AI platform that extracts structured building data from UK planning drawings, improving risk assessment for insurers and property stakeholders. Operate at the intersection of AI, computer vision, and property data, with responsibilities spanning research, development, and commercialisation. Collaborate closely with both academic supervisors and an InsurTech scale-up, balancing technical experimentation with real-world application.

University of Exeter Exeter, Hybrid, South West England, United Kingdom £33 – £43 pa

Contract