Latest Defence Jobs

Lead Data Scientist (Safety)

As a Lead Data Scientist at Faculty, you will drive the scientific direction and architectural rigour of upstream AI safety and evaluation standards. You will lead the design of novel experiment frameworks, mentor technical teams, and ensure delivery excellence across high-stakes engagements, bridging deep scientific research with client strategy.

Faculty London, United Kingdom

Hybrid Permanent

Machine Learning Engineer (Safety)

As a Machine Learning Engineer, you will build and deploy production-grade ML systems, collaborate with cross-functional teams to solve critical client challenges, and lead technical scoping and architectural decisions. You will work on high-stakes, high-impact missions in national security and AI safety, ensuring AI is secure, trustworthy, and safe for all.

Faculty London, United Kingdom

Hybrid Permanent

Lead Software Engineer

Lead the technical direction of AI and machine learning projects, designing production-grade systems and guiding engineering teams across the full project lifecycle. Focus on delivering robust, scalable solutions for clients in energy, sustainability, and infrastructure sectors. Drive innovation through reusable tools, architectural leadership, and mentoring across multidisciplinary teams.

Faculty AI London, United Kingdom

Hybrid Permanent

Principal Research Scientist - AI Safety

Lead and shape the scientific research agenda for AI safety, focusing on large language models and safety-critical systems. Conduct high-impact research, publish in top-tier venues, and guide red-teaming and evaluation efforts in high-risk domains such as cybersecurity and CBRN. Mentor researchers and position the organisation as a thought leader in responsible AI development.

Faculty AI London, United Kingdom

Hybrid Permanent Clearance Required

Principal Security Engineer – DevSecOps and Security Architect

This role involves leading security initiatives across the software development lifecycle, with a focus on integrating security into CI/CD pipelines, conducting threat modeling, and guiding secure design practices. The engineer will work hands-on to automate vulnerability detection, mentor development teams in secure coding, and engage in customer-facing security reviews. It's a high-impact position shaping the security posture of an AI-driven simulation platform in a collaborative, mission-driven environment.

PhysicsX United Kingdom US$200,000 – US$300,000 pa

Hybrid Permanent

Senior Forward Deployed Software Engineer

A Senior Forward Deployed Software Engineer at PhysicsX works directly with customers and internal teams to build and deploy AI-driven simulation applications that solve complex engineering problems across industries like aerospace, energy, and semiconductors. The role involves full-stack development, rapid prototyping, and on-site collaboration, with a focus on delivering production-grade tools using physics AI models. Engineers also contribute to the core platform by abstracting reusable components from customer solutions and shaping product direction.

PhysicsX England US$150,000 – US$250,000 pa

Hybrid Permanent

Principal Machine Learning Engineer

This role involves deploying and scaling machine learning models for high-fidelity engineering simulations, working directly with customers to integrate AI into production environments. The Principal ML Engineer will lead technical architecture, build robust data and inference pipelines using Python, PyTorch, and Kubeflow, and mentor teams across global customer sites. The position bridges advanced physics-based challenges with practical AI solutions in industries like aerospace, energy, and semiconductors.

PhysicsX 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

Senior Infrastructure Engineer, Research

This role involves building and operating scalable ML infrastructure for training and serving large physics models, with a focus on distributed training optimization, data pipeline performance, and model deployment. You'll work closely with research scientists and ML engineers in a high-impact R&D environment, solving systems-level challenges in GPU clusters and HPC workflows. The position emphasizes end-to-end ownership of research infrastructure, reproducibility, and developer experience for fast iteration.

PhysicsX United Kingdom

Senior Machine Learning Engineer

A Senior Machine Learning Engineer will lead the deployment of AI models into production environments for engineering and physics simulations, working closely with customers and cross-functional teams. The role involves building scalable ML pipelines, mentoring engineers, and traveling to client sites globally. The position operates at the intersection of data science and software engineering, focusing on real-world impact in advanced industries.

PhysicsX London, United Kingdom

Senior Software Security Developer – Core Platform Services

This role involves designing and implementing security features for a core platform in an AI-driven engineering simulation environment. The developer will act as a security SME, conducting threat modeling, code reviews, and mentoring teams on secure coding practices. Key focus areas include authentication, authorization, and secure CI/CD workflows within a high-performance technical environment.

PhysicsX London, United Kingdom

Senior Simulation Engineer - Electromagnetics Specialist

Develops high-fidelity electromagnetic simulations across low- and high-frequency domains, focusing on semiconductor, aerospace, and automotive applications. Builds and validates complex EM models, automates simulation workflows, and collaborates with data science teams to train AI surrogates. Works on-site with customers to solve engineering challenges using advanced simulation and AI-driven tools.

PhysicsX North Tyneside, NE29 8EP, United Kingdom

Senior Forward Deployed Software Engineer

This role involves building and deploying AI-driven simulation applications that solve complex engineering problems across industries like aerospace, energy, and semiconductors. You'll work closely with customers, data scientists, and ML engineers to design end-to-end tools that integrate physics AI models into real-world engineering workflows. The position emphasizes rapid prototyping, full-stack development, and translating cross-industry challenges into scalable software solutions.

PhysicsX United Kingdom