Latest Machine Learning Engineer Jobs

Applied Scientist - All Levels

Conduct foundational research to develop AI-driven physical simulation models for engineering and manufacturing applications. Translate complex physics and engineering problems into mathematical formulations, build and iterate machine learning models—particularly in neural operators, geometric deep learning, or generative modeling—and collaborate closely with engineers and customers to deliver real-world impact across advanced industries.

PhysicsX United Kingdom

Hybrid Permanent

Principal Research Scientist

Lead high-impact research initiatives to develop AI-driven simulation models for engineering and physical systems, translating complex physics problems into mathematical and machine learning formulations. Collaborate with cross-functional teams to integrate research into production, publish findings, and mentor junior researchers. The role emphasizes innovation in deep learning for PDEs, geometric data, and generative modeling with real-world industrial applications.

PhysicsX London, United Kingdom

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Python & AWS Software Engineer - Data Science Focus

Design and build data pipelines, APIs, and machine learning systems using Python and AWS. Work with large, complex datasets to deliver actionable insights through scalable cloud infrastructure and production-grade software engineering. Focus on ETL, statistical analysis, and deploying ML models in a collaborative tech environment.

Adecco Derby, United Kingdom £60,000 – £75,000 pa

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

Senior Software Engineer

This role involves leading backend and edge/IoT engineering efforts to build production-grade AI systems for high-stakes defence applications. The engineer will bridge machine learning research with robust software delivery, using Python and compiled languages like Rust or C++, while implementing scalable CI/CD, containerisation, and Kubernetes deployments. Collaboration with data scientists and mentoring of engineering peers are key aspects of the position.

Faculty AI London, United Kingdom

Hybrid Permanent Flexible Clearance Required

Applied AI Engineer

An Applied AI Engineer will work directly with enterprise customers to design, build, and deploy AI systems that solve real-world business problems. The role involves hands-on coding, system integration, and technical leadership to guide AI solutions from prototype to production, with a focus on reliability, safety, and measurable impact. The position requires deep technical expertise and strong collaboration with both customer teams and internal OpenAI groups.

OpenAI London, United Kingdom

Hybrid Permanent

Applied AI Engineer

An Applied AI Engineer will work directly with enterprise customers to design, build, and deploy production-grade AI systems that solve high-impact business problems. The role involves hands-on coding, architecture design, integration, evaluation, and guiding technical decisions across safety, reliability, cost, and governance. Engineers will transition prototypes into scalable, reliable systems while contributing reusable tooling and influencing product development through real-world deployment insights.

OpenAI United Kingdom

Hybrid Permanent

Senior Robotics Research Engineer

Develop and implement sensor-guided robotic manipulation systems within a research-driven environment, focusing on real-time control, grasping, and integration into pre-production platforms. Collaborate with research projects and production teams to advance automation for grocery fulfillment. Work across the full development lifecycle using ROS2, C/C++, and Python in a hybrid setup.

Ocado Welwyn Hatfield, AL8 6TP, United Kingdom

Hybrid Permanent

Senior Research Engineer - Data

This role focuses on building and enhancing large-scale data pipelines for generative AI models, working with vast amounts of video and audio data to improve model performance through data quality, curation, and feature extraction. The position bridges applied research, data engineering, and ML infrastructure, collaborating closely with model training teams to deliver high-impact datasets. It emphasizes ownership in shaping data strategy and infrastructure within a fast-moving AI research environment.

Synthesia London, United Kingdom

Remote Permanent

Senior Research Engineer - Interactive Avatars

Develop and advance AI-driven interactive avatars using diffusion models, focusing on real-time video generation, audio conditioning, and contextual responsiveness. Work within a research-forward team to translate cutting-edge generative AI into scalable product features. Responsibilities include improving lip-sync accuracy, motion realism, and building evaluation frameworks for long-form interactive video.

Synthesia London, United Kingdom

Remote Permanent

Senior Software Test Engineer

A Senior Software Test Engineer will lead test strategy and automation across frontend, backend, and mobile products using microservices and machine learning. The role involves designing test frameworks, mentoring team members, and integrating quality practices into CI/CD pipelines. The engineer will work in a cross-functional team, combining automation with exploratory testing to ensure robust product quality.

Entrust Cannock Chase, United Kingdom

Senior Software Test Engineer

A Senior Software Test Engineer will lead testing initiatives within a cross-functional product engineering team, focusing on frontend, backend, and mobile systems powered by microservices and machine learning. The role involves designing automated test frameworks, mentoring team members, and integrating quality practices into CI/CD pipelines using modern tools and cloud infrastructure. Emphasis is placed on test ownership, automation, and fostering a strong team-wide quality culture.

Entrust London, United Kingdom

ML Runtime Engineer

Develop and optimize the ML runtime stack for AI accelerators, integrating with open-source frameworks like PyTorch, vLLM, and SGLang. Work closely with hardware and ML teams in a co-design environment to deliver high-performance inference solutions. Build low-level systems in Rust while contributing to the full software stack for next-generation AI hardware.

Fractile London, United Kingdom

Hybrid Permanent

ML Runtime Engineer

Develop and optimize the ML runtime stack for AI accelerators, integrating with open-source frameworks like PyTorch and vLLM. Work closely with hardware and software teams in a co-design environment to enable high-performance inference. Build low-level systems in Rust and contribute to cutting-edge AI infrastructure.

Fractile Bristol, United Kingdom

Hybrid Permanent

DV Cleared AI & Palantir Engineers - Graduate to Senior

This role involves working on high-impact national security and advanced technology programmes using cutting-edge tools like Palantir and AI/ML technologies. Engineers will tackle complex technical challenges in secure environments, with opportunities to work across the full stack from data engineering to software development. The position supports career progression from graduate to senior levels within a collaborative, multidisciplinary team.

CBSbutler Holdings Limited trading as CBSbutler London, United Kingdom £40,000 – £100,000 pa