Machine Learning Jobs

Research Engineer, Machine Learning (Reinforcement Learning)

Blends reinforcement learning research with engineering, building scalable RL infrastructure, distributed training across GPU clusters, and novel training environments for agentic LLMs. Involves profiling, optimization, caching, and debugging distributed systems, with close collaboration between research and production teams.

Anthropic London £260,000 – £630,000 pa

On-site Permanent

Manager, Applied AI Architects - Digital Natives, EMEA

Lead and grow a distributed EMEA team of Applied AI Architects, setting pre-sales standards and acting as technical lead on strategic digital-native accounts. The role involves use-case scoping, POCs, demos and ROI validation for Claude Enterprise, Claude Code and the Claude API, while guiding customers through GDPR, EU AI Act and data residency requirements alongside Sales, Product and Engineering.

Anthropic London £190,000 – £230,000 pa

Hybrid

Technical Program Manager (DDMR), Cambridge, MA

First Technical Program Manager hire for the Drug Design and Medical Research function, supporting small molecule drug discovery programs in Cambridge, MA while integrating with the London office. Responsibilities span program planning, timeline monitoring, risk reporting, budget forecasting and spend tracking, CRO and external partner liaison, and embedding operational processes across teams.

Isomorphic Labs Cambridge, United States

Hybrid

Research Leader (Toxicology), Cambridge, MA

Lead the safety assessment strategy for small molecule and biologic drug discovery projects from inception to regulatory submission, designing screening cascades and mechanistic experiments. Partner with machine learning researchers to build predictive toxicology models and manage external CROs for all wet-lab data generation, while mentoring junior scientists.

Isomorphic Labs Cambridge, United States

Hybrid

Data Scientist

Builds and deploys deep learning and probabilistic models to predict and control physical systems, working alongside simulation engineers and customers. Owns data pipelines and production-ready models, and travels to customer sites roughly 3-4 weeks per quarter to co-develop solutions on-site.

PhysicsX New York, United States US$120,000 – US$240,000 pa

Hybrid Clearance Required

Machine Learning Engineer

Delivery-focused role embedding physics-aware AI models into customer tools, building reliable ML data pipelines and working with 3D point-cloud and mesh data. Spans data science and software engineering, translating R&D into reusable libraries and products, with regular on-site customer travel.

PhysicsX San Francisco, United States US$150,000 – US$190,000 pa

Hybrid

Graduate Software Engineer

Engineer the future of defence and securityThis team is motivated by saving lives in war affected regions and on the battlefield. They believe that by combining advanced technologies from different sectors they can fundamentally change the effectiveness of those we...

ECM Selection Cambridge £35,000 – £45,000 pa

Forward Deployed Engineer

Embed with strategic enterprise customers to design, build and productionise custom fullstack data and AI applications on the Databricks platform. You own architecture and end-to-end delivery across data engineering, ML/AI integration and user-facing interfaces, partnering with Sales, Product and Field Engineering. Travel to client sites up to 50%.

Databricks London

Senior Software Engineer, Chem-Bio

Senior individual contributor building the shared platform, tooling and infrastructure for an interdisciplinary chem-bio research team, including LLM-based agent systems and evaluation frameworks. Works closely with researchers to translate varied needs into maintainable Python systems, while contributing to engineering standards and mentoring peers without line management.

AI Security Institute London

Hybrid

Enterprise Account Executive - Manufacturing

As an Enterprise Account Executive, you will focus on growing Databricks' presence in the Manufacturing industry by developing strong relationships with key accounts, leading sales campaigns, and co-developing business plans with partners. You will drive the adoption of big data and AI solutions, working closely with customers and ecosystem partners to achieve strategic goals.

Databricks London

MLE, Data Enrichment

Builds ground-truth datasets and computer vision classifiers that describe complex driving scenes, spanning road geometry, spatial relationships, road users and driving behaviour. Works with internal customers to define annotation tasks and acceptance criteria, curates datasets, and integrates classifiers with enrichment infrastructure for corpus analysis and scenario mining.

Wayve London

Hybrid Permanent

Software Engineer (Agentic Systems)

Design and build LLM-agentic workflows that reason over knowledge graphs, proprietary methods and scientific literature to generate and triage therapeutic hypotheses for rare diseases. Works closely with drug discovery scientists in a cross-functional team, using Python, ADK and AgentSpace, with scope to own workflows end to end.

Healx Cambridge

Hybrid Permanent

Principal Applied Scientist, Trusted Supply, Amazon Ads

Lead the science vision for Trusted Supply, safeguarding advertiser trust across Amazon Advertising by developing algorithms for brand safety, suitability scoring, fraud detection, viewability prediction and privacy-preserving measurement. The role spans multi-year research direction, publication roadmaps, cross-team modelling frameworks and production systems serving billions of ad impressions daily, alongside hiring and mentoring applied scientists and research engineers.

Amazon London

Permanent

Engineering Manager, Guardian

Lead and grow a London-based engineering team building real-time safety and oversight systems for AI agents, including the Auto-review platform that evaluates agent actions at permission boundaries. The role is a hands-on builder-manager position, setting technical direction while shaping architecture, reviewing designs, debugging, and writing code, working closely with alignment researchers and product teams.

OpenAI London

Hybrid Permanent Clearance Required

Applied AI Architect, OpenAI for Government

Senior technical owner for a portfolio of public sector customers, shaping AI strategy from pre-sales discovery through production adoption. Owns the technical account plan across ChatGPT Enterprise, the OpenAI API, Codex and agentic solutions, designing architectures covering models, data, integration, security and governance while coordinating specialists across deployment, product and partners.

OpenAI London

Hybrid Permanent Clearance Required