Latest ai researcher Jobs

Senior Research Engineer - Interactive Avatars

This role involves developing advanced AI models for interactive avatars, focusing on diffusion-based video generation conditioned on audio, motion, and user interaction. The engineer will work on real-time, long-form video synthesis, improving lip-sync and motion realism, and building evaluation systems to ensure high visual quality. The position bridges cutting-edge research and product deployment within a fast-moving AI video platform.

Synthesia London, United Kingdom

Remote Permanent

Senior Software Engineer, RL Post-Training Frameworks

Architect and build scalable reinforcement learning post-training infrastructure that operates across GPUs, CPUs, and LPUs, optimizing training-inference-rollout loops for performance and efficiency. Contribute to open-source RL frameworks and distributed runtimes, collaborate with researchers and hardware teams, and ensure fault tolerance and elastic scaling in large-scale distributed systems. Work spans system design, runtime optimization, and cross-team advocacy to support next-generation AI workloads.

NVIDIA

Remote Permanent

Senior Research Engineer - Video Foundation Models (Pre - Training)

Develop and scale latent video diffusion models for human-centric video generation, focusing on controllability, training stability, and inference efficiency. Work on conditioning mechanisms for pose, emotion, and script control while optimizing distributed training and evaluation frameworks. Deliver production-grade foundation models with direct impact on a widely used AI video platform.

Synthesia London, United Kingdom

Remote Permanent

Senior Performance Engineer

Analyze end-to-end performance of large-scale AI workloads across compute, network, storage, and software stacks. Design and execute performance studies, diagnose bottlenecks, and deliver optimization plans in collaboration with deep learning and platform teams. Focus on improving efficiency and scalability of DGX Cloud systems through rigorous benchmarking and data-driven insights.

NVIDIA

Senior AI Engineer

The role involves developing emotionally responsive virtual humans using AI to enhance soft-skills training. You'll work across the full AI stack—integrating large language models with speech and vision systems—to create realistic, interactive simulations. The position emphasizes research-to-product development, rigorous evaluation, and cross-disciplinary collaboration in a socially impactful startup environment.

Bodyswaps London, United Kingdom

Hybrid Permanent

Researcher, Training - London

This role involves advancing large language model (LLM) development through research and experimentation, focusing on architecture design, optimization, and scaling. The researcher will work on improving model intelligence and efficiency, contributing to both training infrastructure and inference systems. Based in London with a hybrid work model, the position emphasizes hands-on empirical work and collaboration within a cutting-edge AI research environment.

OpenAI London, United Kingdom

Hybrid Permanent

Principal Research Scientist - AI Safety

Lead and shape the research agenda for AI safety, focusing on large language models and high-risk domains such as CBRN and cybersecurity. Conduct and oversee cutting-edge technical research, publish in top-tier venues, and mentor a growing team of researchers. Collaborate on red-teaming and evaluation projects while positioning the organisation as a thought leader in trustworthy AI development.

Faculty AI London, United Kingdom

Hybrid Permanent Clearance Required

Research Scientist/Engineer - Multimodal AI & LLM

Research Scientist / Research Engineer - Multimodal AI & Large Language ModelsLocation: LondonSalary: £(phone number removed) per annum + permanent benefits + bonusJob Type: Permanent, Full-Time, On-siteAbout the OpportunityWe are partnering with an innovative research organisation at the forefront of...

Adecco London, United Kingdom

Data Scientist (AI / ML) - Near Edinburgh - 42K, Bonus

Design and implement machine learning models within an R&D-driven environment, translating technical outcomes into actionable insights for stakeholders. Collaborate with product teams and external partners to integrate AI solutions into globally used products. Focus on innovation, experimentation, and continuous improvement in a hybrid work setting.

Lorien Stockbridge, City Of Edinburgh, Edinburgh, United Kingdom £35,000 – £42,000 pa

Hybrid

Technical Program Manager, AI Delivery for Public Sector & Defence, UK

This role involves leading end-to-end technical program delivery for AI deployments within UK public sector and defence organisations. The individual will act as a bridge between Cohere’s advanced AI capabilities and government stakeholders, managing complex procurement, security, compliance, and integration requirements. Success requires navigating air-gapped environments, high-stakes governance, and multi-team coordination to ensure responsible, secure, and scalable AI adoption.

Cohere London, United Kingdom

Hybrid Permanent Clearance Required

Staff Software Engineer, AI Reliability Engineering

This role focuses on ensuring the reliability and resilience of large language model serving systems across the full stack, from API layers to accelerators. You'll design service level objectives, build observability systems, lead incident response, and collaborate across teams to strengthen critical infrastructure. The position demands a systems thinker with strong distributed systems experience and a proactive approach to improving robustness in high-scale AI environments.

Anthropic London, United Kingdom £325,000 – £390,000 pa

Permanent

Anthropic Fellows Program, AI Safety & Security

This role involves conducting empirical AI safety research over a 4-month fellowship, working on projects such as scalable oversight, adversarial robustness, and mechanistic interpretability. Fellows receive mentorship from Anthropic researchers, access to compute resources, and produce public outputs like research papers. The program supports remote participation in the UK, US, or Canada, with optional co-location in London or Berkeley.

Anthropic United Kingdom

Hybrid Internship

Research Scientist (Biological Models), Chem-Bio

This role involves conducting empirical research on the risk-relevant capabilities of specialised biological AI models, such as those for protein design and genomic analysis. The researcher will design experiments to assess in-silico performance, evaluate whether computational results translate to real-world biological outcomes, and investigate technical safeguards against misuse. Working at the intersection of machine learning, computational biology, and biosecurity, the role requires translating complex technical findings into actionable insights for government and policy stakeholders.

AI Security Institute London, United Kingdom

Security Engineering Manager, London or Lausanne

Lead and scale a security engineering team at the forefront of AI-driven drug discovery, designing and implementing a robust, AI-first security architecture for a digital biology platform. Translate complex scientific and business objectives into secure, automated systems while enabling high-velocity research in a regulated, interdisciplinary environment. Collaborate closely with ML researchers, medical teams, and Google/Alphabet stakeholders to secure cloud infrastructure, AI workflows, and sensitive life sciences data.

Isomorphic Labs United Kingdom

Detection Engineer

The role involves building and maintaining security detection and incident response systems at a fast-growing AI company. The engineer will develop detection rules, automate security operations using AI and scripting, and monitor cloud, endpoint, and SaaS environments. Emphasis is placed on proactive threat detection, rapid response, and scaling security through automation.

ElevenLabs London, United Kingdom

Hybrid Permanent