Latest software engineer Jobs

Senior Software Engineer, RL Post-Training Frameworks

This role involves designing and building scalable reinforcement learning (RL) post-training infrastructure that supports the full lifecycle of training-inference-rollout loops across heterogeneous hardware. The engineer will contribute to open-source RL frameworks, optimize distributed systems for performance and resilience, and collaborate with research and hardware teams to advance AI capabilities. Work spans deep integration with PyTorch, Kubernetes, and high-performance computing environments to enable next-generation AI models.

NVIDIA

Remote Permanent

Senior Software Engineer, CUDA Core Libraries

Develop and optimize foundational CUDA Core Libraries in C++ and Python, focusing on high-performance parallel algorithms, API design, and developer experience. Work across the stack to enhance GPU-accelerated computing for deep learning, scientific computing, and data analytics, with direct impact on widely used libraries like Thrust, CUB, and cuda-python.

NVIDIA Germany PLN 292,500 – PLN 650,000 pa

Remote Permanent

Senior Staff+ Software Engineer, Kubernetes Platform

About AnthropicAnthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers,...

Anthropic London, United Kingdom

Senior Staff+ Software Engineer, Node Infra

About AnthropicAnthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers,...

Anthropic London, United Kingdom

Sr. Software Engineer, Cloud Platform , London)

Design and implement cloud platform features for marketplace integrations using Foundry, ensuring seamless discoverability and search capabilities within the AISOAR platform. Innovate on platform services by identifying customer needs, integrating with cybersecurity solutions, and maintaining high availability using cloud-native technologies like Kubernetes, Kafka, and AWS/GCP. Troubleshoot complex issues using observability tools and contribute to a security-first, AI-driven engineering culture.

CrowdStrike London, United Kingdom

Hybrid Permanent

Sr. Software Engineer, Cloud Detection , London)

Design and scale backend services for a next-generation security detection platform processing internet-scale data streams. Focus on building resilient, high-performance systems using distributed technologies to enable real-time threat detection across the Falcon ecosystem. Collaborate across teams to innovate and improve platform architecture and execution.

CrowdStrike London, United Kingdom

Hybrid Permanent Clearance Required

AI Infrastructure Engineer, Serving Platform

As a Software Engineer on the ML Infrastructure team, you will design and build platforms for scalable, reliable, and efficient serving of LLMs. Our platform powers cutting-edge research and production systems, supporting both internal and external use cases across various...

Scale AI London, United Kingdom

AI Infrastructure Engineer, Sandbox Platform

As a Software Engineer on the AI Infrastructure team, you'll help build and evolve our agent sandboxing platform — the secure, high-performance code execution layer powering our agentic workflows, deployed across both internal and customer-managed environments. This is a role...

Scale AI London, United Kingdom

System Integration Engineer

The role involves integrating and bringing up autonomous systems on internal and partner vehicles, focusing on hardware-software synergy for Wayve’s AI-driven driving technology. You'll architect new hardware systems, lead troubleshooting across electrical, mechanical, and software domains, and develop tooling to support rapid, reliable development. Work spans prototype through deployment, with a strong emphasis on system-level ownership and cross-disciplinary collaboration.

Wayve London, United Kingdom

Hybrid Permanent

Senior Applied Engineer

Develop and scale AI-driven physical foundation models for engineering simulation, bridging research and production. Translate scientific prototypes into robust, distributed ML systems using high-performance computing and cloud infrastructure. Collaborate closely with researchers, engineers, and customers to solve real-world physics and engineering challenges.

PhysicsX United Kingdom

Hybrid Permanent

AI Engineer

This role involves designing and building production-ready AI features using large language models, machine learning, and retrieval-augmented generation (RAG) to enhance digital products. The engineer will bridge AI concepts with real-world applications, focusing on automation, product intelligence, and responsible AI practices. Collaboration with product teams and engineers is key to delivering secure, scalable solutions grounded in business needs.

Crowd Digital Ltd Bradford, West Yorkshire, United Kingdom £60,000 – £70,000 pa

Hybrid Permanent

Staff Machine Learning Engineer

This role involves leading the development and deployment of production-grade machine learning systems, with a focus on fine-tuning large language models and building scalable inference infrastructure. The engineer will own the full ML lifecycle, from data pipelines to deployment, while mentoring teams and integrating AI solutions into products. The position bridges research and engineering in a remote-first, technically driven environment.

Hexwired Recruitment Limited United Kingdom £160,000 – £200,000 pa

Remote Permanent

Systems Engineer - Radar

As a Systems Engineer, you will work on the G1X radar, a cutting-edge software-defined radar, supporting bid activities, requirements management, radar performance analysis, algorithm development, and system design. You will collaborate with a team of experts, travel within the UK and abroad, and contribute to the continuous improvement and growth of radar and sensor systems.

Saab Fareham, United Kingdom

On-site Permanent Clearance Required

Forward Deployed Engineer - Cardiff

This role involves leading the design, development, and deployment of AI-powered solutions such as automation, RAG, and LLM-based workflows. The engineer will collaborate with stakeholders to deliver strategic AI initiatives, ensure systems are secure and scalable, and mentor a growing engineering team. The position is based in central Cardiff with hybrid working and focuses on building advanced AI capabilities within a technology-driven organisation.

Circle Recruitment Cardiff, Cymru / Wales, CF10 2AF, United Kingdom £45,000 – £53,000 pa

Hybrid Permanent

Platform Engineer (DevOps / MLOps Focus)

This role involves designing and maintaining cloud-native infrastructure and Kubernetes environments to support large-scale AI and machine learning workloads. You'll use Terraform for Infrastructure as Code and collaborate closely with engineering and data science teams to optimise deployment workflows and platform performance. The position focuses on building scalable, secure, and observable platforms for AI in a high-visibility environment.

The Portfolio Group London, United Kingdom £100,000 pa

Hybrid Permanent