Latest ai researcher Jobs

Staff+ Software Engineer, Safeguards Infrastructure

Build foundational systems for AI safety, oversight, and intervention mechanisms, focusing on detecting unwanted model behaviors and preventing disallowed use. Develop infrastructure for data management, metrics, evaluations, and review tooling while ensuring high operational reliability and scalability. Work across the stack to create multi-layered, real-time safety defenses with minimal human intervention.

Anthropic London, United Kingdom £255,000 – £325,000 pa

Hybrid 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 £260,000 – £630,000 pa

On-site Permanent

Technical Threat Investigator, Threat Intel Engineering - UK

This role involves conducting deep technical investigations into sophisticated threat actors targeting OpenAI's systems or misusing its AI models. The investigator will proactively hunt for malicious activity, analyze adversary behavior and infrastructure, and translate findings into scalable detection and disruption strategies. They will also build automation and AI-assisted workflows to enhance investigative efficiency and collaborate with cross-functional teams to improve security, safety, and enforcement systems.

OpenAI London, United Kingdom

Remote Permanent

Software Engineer, Privacy Engineering (Lawful Access)

Build and operate secure backend systems and data pipelines for lawful data access request workflows, translating legal and operational requirements into auditable, privacy-preserving technical solutions. Focus on end-to-end ownership, least-privilege access, and improving the safety and efficiency of sensitive data handling processes with strong human oversight.

OpenAI London, United Kingdom

Permanent

PhD Graduate AI & Algorithms Engineer (2026 start)

Work within a multidisciplinary team to design and build intelligent systems using AI and advanced algorithms, applying cutting-edge research to solve real-world client problems. Engage in hands-on development, model training and testing, and contribute to internal R&D initiatives that push the boundaries of state-of-the-art technology. Communicate technical outcomes to both technical teams and external clients in a collaborative innovation environment.

Cambridge Consultants United Kingdom

On-site Permanent Clearance Required

Principal AI & Algorithms Engineer (Defence & Security)

This role involves leading the design and implementation of advanced algorithms for intelligent systems in defence and security contexts, with a focus on machine learning, AI, and sensor processing. You'll act as technical architect on complex projects, mentor engineers, and contribute to client-facing proposals and sales efforts. The position requires security clearance and combines hands-on development with strategic technical leadership in multidisciplinary teams.

Cambridge Consultants United Kingdom

Hybrid Permanent Clearance Required

Compiler Engineer - AI Inference

Develop and optimize compilers for AI inference workloads on NVIDIA's next-generation GPUs, focusing on kernel generation, computational graph optimizations, and hardware-software co-design. Collaborate with cross-functional teams to advance compiler frameworks and enable high-performance AI deployment at scale. Work spans MLIR-based tooling, deep learning performance, and datacenter-scale optimization.

NVIDIA Cambridge, United Kingdom

Senior Specialist Solutions Engineer (AI/ML)

Design and implement production-grade machine learning and GenAI solutions on Databricks' platform, with a focus on MLOps, RAG architectures, and LLM deployment. Provide technical leadership during sales cycles by building MVPs, guiding architectural design, and mentoring teams. Create tutorials, lead hackathons, and drive platform adoption through thought leadership in AI/ML innovation.

Databricks London, United Kingdom

On-site Permanent

Senior Specialist Solutions Architect (AI/ML)

Design and implement production-grade machine learning and AI workloads on the Databricks platform, with a focus on GenAI, MLOps, and LLMOps. Lead technical engagements with enterprise customers, build end-to-end AI pipelines, and provide expert guidance on RAG architectures, agentic systems, and AI observability. Mentor internal teams and influence product direction by representing customer needs in AI roadmap discussions.

Databricks London, United Kingdom

Hybrid Permanent

Compiler Engineer - AI Inference

This role involves developing advanced compiler technologies for AI inference and training workloads, focusing on kernel generation and computational graph optimizations tailored to NVIDIA's GPUs. You'll work at the intersection of hardware and software, collaborating with experts to co-design future silicon and optimize datacenter-scale AI deployments. The position demands deep expertise in compiler design, MLIR, and performance optimization in high-performance computing environments.

NVIDIA United Kingdom

Senior LLM Engineer (RAG & AI Applications)

Design and deploy production-grade LLM applications, integrating AI capabilities into existing software platforms. Work across structured and unstructured data in a high-impact R&D environment, bridging research and engineering. Focus on scalable deployment of RAG and AI systems within a growing tech team.

HAYS Specialist Recruitment Guildford, United Kingdom £75,000 – £125,000 pa

Senior Forward-Deployed AI Engineer, Tactical AI Automations - PIMCO

This role involves deploying and configuring AI tools—such as LLM assistants and agentic workflows—directly within investment teams to enhance portfolio management and research processes. The engineer will provide hands-on training, develop proofs of concept, gather user feedback, and translate it into platform improvements, while also offering first-line production support for key portfolio optimization systems during European hours. Embedded with business teams, the role bridges technical AI platforms and real-world investment workflows, ensuring effective, responsible adoption.

eFinancialCareers London, United Kingdom

Hybrid Permanent

Software Engineer - Advanced Signal Procesing & AI

Location: UK Wide (Hybrid/On-site as required)Outside IR35 - Rate £50-£80 p/hSecurity Clearance: Must be eligible to obtain and maintain UK Security Clearance (SC)RC Fornax is looking for a Software Engineer – Advanced Signal Processing & AI. This is an exciting...

RC Fornax United Kingdom £50 – £80 ph

Computer Vision Engineer

Develop and deploy advanced computer vision systems for high-stakes defence applications, bridging cutting-edge research with real-world deployment. Lead technical strategy, mentor teams, and contribute to business development through bids and client engagement. Work in a hybrid model with regular on-site client collaboration across the UK.

Faculty AI London, United Kingdom

Hybrid Permanent Flexible Clearance Required

Senior Software Engineer

Lead backend and edge/IoT engineering for high-impact defence projects, bridging machine learning research with production-grade systems. Design scalable, robust software in Python and compiled languages, while mentoring engineers and implementing CI/CD pipelines on Kubernetes or bare metal. Work across client sites and collaborate closely with data science teams to operationalise agentic AI solutions.

Faculty AI London, United Kingdom

Hybrid Permanent Flexible Clearance Required