Latest PhysicsX Jobs

CFD Multiphase & DEM Engineer

This role involves developing and validating high-fidelity multiphase CFD and coupled CFD-DEM simulations for industrial applications across aerospace, energy, and manufacturing. The engineer will work directly with customers to build automated, scalable simulation workflows integrated with AI-driven surrogate models, using tools like Star-CCM+, OpenFOAM, or Fluent alongside Python and parametric CAD. Emphasis is placed on smart sampling, model validation, and mentoring within a collaborative, high-performance engineering culture.

PhysicsX London, United Kingdom

Principal Machine Learning Infrastructure Engineer

This role focuses on designing and operating scalable machine learning infrastructure for training and serving large physics-based models. You'll work closely with research scientists and ML engineers to optimize distributed training pipelines, improve data I/O performance, and build reliable model serving systems. The position emphasizes systems-level problem-solving, infrastructure automation, and enabling fast, reproducible experimentation on high-performance GPU clusters.

PhysicsX London, United Kingdom

Principal Digital Signal Processing Engineer

Design and develop prototype systems using advanced digital signal processing algorithms for US Government applications in wireless communications, sensors, audio, and image processing. Work across the full technology development lifecycle, from proof-of-concept to implementation on diverse platforms. Collaborate with clients to deliver novel capabilities grounded in cutting-edge signal processing theory and practical engineering.

Cambridge Consultants United Kingdom

On-site Permanent Clearance Required

Principal Engineer - Digital Signal Processing

Design and develop prototype systems using advanced digital signal processing algorithms for applications in wireless communications, sensors, audio, and image processing. Work across the technology development lifecycle from proof-of-concept to product implementation, supporting both commercial and US government clients. Collaborate on innovation, IP generation, and the evolution of DSP capabilities within a multidisciplinary engineering team.

Cambridge Consultants United Kingdom

Hybrid Permanent Clearance Required

Regional Research Economist, Economic Research

This role involves conducting empirical economic research on AI's impact across labor markets, productivity, and economic transformation, using novel measurement systems and large-scale datasets. The economist will develop region-specific insights through the Anthropic Economic Index, collaborate with external partners, and translate findings into policy recommendations. Work includes methodological innovation in econometrics and machine learning, with a focus on real-world AI adoption patterns and societal outcomes.

Anthropic London, United Kingdom £180,000 – £190,000 pa

On-site Permanent

Staff Software Engineer, Kubernetes Platform

This role involves owning and scaling the Kubernetes control plane for large AI training clusters, including customizing the scheduler for topology-aware ML workloads and ensuring high availability under extreme scale. The engineer will build core platform services like service discovery, develop controllers and operators, and collaborate closely with research and infrastructure teams. The position demands deep expertise in distributed systems, Kubernetes internals, and debugging complex production issues across cloud environments.

Anthropic London, United Kingdom £325,000 – £485,000 pa

On-site Permanent

Technical Deployment Lead

Lead end-to-end technical delivery of custom AI agent solutions for enterprise clients in regulated industries, from scoping to production deployment. Bridge technical and business stakeholders, define MVPs, manage stakeholder expectations, and codify reusable playbooks. The role combines technical leadership with executive engagement to drive successful AI adoption in complex environments.

Anthropic London, United Kingdom £165,000 – £230,000 pa

Manager, Forward Deployed Engineering

Lead and scale Anthropic's Forward Deployed Engineering team by hiring top talent, overseeing technical delivery for strategic enterprise customers, and building repeatable playbooks for AI adoption. This role combines hands-on technical leadership with team development, shaping how organizations deploy Claude in production environments while feeding field insights back into product development.

Anthropic London, United Kingdom

Applied AI Architect, Beneficial Deployments (Life Sciences)

This role involves serving as the primary technical advisor to life sciences research institutions, helping them adopt and integrate Claude into their scientific workflows. The Applied AI Architect will translate complex research needs into scalable AI solutions, lead technical enablements, and design cohort-based accelerators to drive broad impact across academia and mission-driven organizations. By bridging technical depth with relationship-building, the role focuses on making AI a seamless part of discovery and development in life sciences.

Anthropic London, United Kingdom £165,000 – £190,000 pa

Head of Deal Desk - International

Lead and scale the Deal Desk function for Anthropic's international business across EMEA and APAC, overseeing complex deal structuring, pricing, and approvals while ensuring alignment with global standards. Build and manage a team of three, acting as the key commercial partner to sales on non-standard deals and bridging field needs with finance, legal, and revenue operations. Establish scalable processes, tooling, and metrics to support rapid international growth in a high-ambiguity environment.

Anthropic London, United Kingdom

Staff Infrastructure Engineer, Cluster Infrastructure

This role involves leading the technical strategy for agent-driven automation in cluster lifecycle management, ensuring secure, scalable, and fault-tolerant compute infrastructure across cloud and on-prem environments. You'll collaborate with research, product, and security teams to shape long-term infrastructure direction, with a focus on high-bandwidth interconnectivity and operational excellence. The position emphasizes mentorship, cross-team alignment, and driving innovation in large-scale cluster provisioning and management.

Anthropic London, United Kingdom £325,000 – £485,000 pa

On-site Permanent

Staff Software Engineer, Node Infra

This role focuses on designing and operating large-scale infrastructure systems that manage the full lifecycle of AI accelerator nodes across multiple cloud providers and on-prem datacenters. The engineer will lead technical strategy for node provisioning, health monitoring, and automated repair, ensuring high availability and efficiency for Anthropic’s AI training and inference workloads. The position involves deep collaboration with research, product, and cloud teams to scale infrastructure reliably while driving operational excellence and mentoring other engineers.

Anthropic London, United Kingdom £325,000 – £485,000 pa

On-site Permanent

Applied AI Architect, Industries

This role involves serving as a technical advisor to enterprise customers adopting Claude, designing scalable AI architectures, and guiding integration of Anthropic's LLMs into existing technology stacks. The position bridges technical and business stakeholders, creating evaluation frameworks and delivering tailored technical content. Collaboration with sales, product, and engineering teams is central to driving successful customer deployments.

Anthropic London, United Kingdom £150,000 – £190,000 pa

On-site Permanent

Staff Software Engineer, Inference

This role involves building and maintaining large-scale, compute-agnostic inference systems that power Claude for millions of users and support cutting-edge AI research. The engineer will work across the full stack, optimizing intelligent request routing, fleet orchestration, and performance across diverse AI accelerators in multi-cloud environments. Projects include autoscaling infrastructure, integrating new hardware, and developing production pipelines for model deployment.

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

Hybrid Permanent

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