Machine Learning Engineer - Member of Technical Staff

Join Our Team as a Staff Machine Learning EngineerBecome an integral part of Deliveroo’s mission to revolutionize the shopping and dining experience with a focus on impact, innovation, and growth. Our talented Engineering teams tackle intricate technical challenges within a global, three-sided marketplace, developing and scaling systems that cater to millions of customers, riders, and partners daily.From advanced real-time logistics to robust infrastructure and marketplace optimization, we create and manage the technology that fuels Deliveroo’s expansive growth.We are seeking a Staff Machine Learning Engineer to join our dynamic London team (working in a hybrid model, 3 days in the office). In this pivotal role, you will design and construct intelligent decision-making systems that operate at a large scale, directly influencing the experiences of consumers, riders, and merchants.Explore our Engineering team and discover our motivations, work culture, and what you can expect as part of our community.Your ResponsibilitiesJoin the Consumer Pricing team to tackle complex pricing challenges at Deliveroo. We are advancing towards dynamic, personalized pricing strategies that take into account consumer behavior, loyalty programs, and real-time market conditions.Your daily tasks will include:Designing and developing high-performance machine learning and optimization systems that guide Deliveroo’s core decisions at scale.Leading the technical advancement of our pricing infrastructure, resolving architectural bottlenecks and integrating enhanced model inputs and decision variables.Creating algorithms to enhance real-time marketplace efficiency, including personalized elasticity models and delivery time forecasts.Collaborating closely with Product Managers and Data Scientists to convert complex business challenges into effective algorithmic solutions.Providing technical leadership across various product domains, identifying and prioritizing high-impact algorithmic enhancements.Mentoring and guiding fellow engineers, elevating technical standards and advancing our machine learning and optimization practices across the company.Qualifications for SuccessThe ideal candidate will possess strong expertise in several of the following areas, along with a desire to grow in others:

About H H is focused on advancing superintelligence by developing agentic AI. The team’s mission is to automate complex, multi-step tasks that typically require human effort, enabling AI agents to extend what people can achieve. H values open collaboration, continuous learning, and responsible progress. The company seeks people who care deeply about building agentic technologies safely and who want to contribute to a culture where every voice matters. About the Agent Team The Agent team shapes new learning algorithms and agent paradigms that move agentic systems forward. Work centers on foundational models and reinforcement learning, with a focus on training artificial general agents. Collaboration with the LLM/VLM and Safety teams is central, as the group explores new research directions together. Role Overview: Technical Staff Member - Research - Agent This position is part of the research team and centers on engineering. The main responsibility: define system architectures and build scalable platforms that underpin research efforts. The work involves turning research ideas into reliable, high-performance systems ready for production, supporting the next wave of agentic AI. Location London

Role overview The Staff Machine Learning Engineer at AccuRx will work onsite in London (Shoreditch). The main focus is on creating and deploying machine learning models that help improve patient care and make healthcare workflows more efficient. This work aims to benefit both patients and healthcare professionals. What you will do Design, build, and deploy machine learning models for healthcare use cases Collaborate with engineering, product, and clinical teams to shape solutions Contribute to projects that influence patient outcomes and support healthcare providers

Technical Staff Member - Applied AIExciting Opportunity Awaiting YouWe are seeking a talented Member of Technical Staff specializing in generative modeling to bridge the gap between our cutting-edge models and the clients who rely on them. You will be a part of a diverse team comprising machine learning experts, protein engineers, and biologists, all collaboratively working to revolutionize biological control and disease treatment. In this role, you will gain a thorough understanding of our proprietary generative models and leverage that expertise to adapt, deploy, and optimize these models in client environments, especially within the pharmaceutical and biotech industries.This is a hybrid position requiring a research-oriented mindset coupled with excellent communication skills to effectively translate complex concepts into practical production systems that yield scientific benefits for our partners.About Latent LabsAt Latent Labs, we are committed to developing pioneering models that grasp the fundamentals of biology. Our ambitious goals are driven by curiosity and an unwavering commitment to scientific excellence. Our team previously contributed to the award-winning AlphaFold project at DeepMind, invented latent diffusion, and established groundbreaking lab data management and high-throughput protein screening systems. At Latent Labs, you'll collaborate with some of the brightest minds in generative AI and biology.We foster an environment of interdisciplinary exchange, continuous learning, and collaboration. Our offsite team-building activities promote a culture of trust across our London and San Francisco offices.We are looking for innovative thinkers who are passionate about solving complex challenges and making a positive global impact. Join us on our ambitious mission!

Waymo, a pioneer in autonomous driving technology, is dedicated to becoming the world’s most trusted driver. Since its inception as the Google Self-Driving Car Project in 2009, Waymo has been at the forefront of innovation, developing the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility while significantly reducing the number of lives lost in traffic accidents. The Waymo Driver powers our fully autonomous ride-hailing service and is adaptable to various vehicle platforms and applications. With over ten million rider-only trips completed, fueled by our experience of autonomously driving over 100 million miles on public roads and tens of billions of miles in simulation across more than 15 U.S. states, we are transforming transportation.The Driver Understanding and Evaluation (DUE) team at Waymo is focused on creating comprehensive metrics to evaluate the Waymo Driver’s behavior in real-world scenarios. We are developing advanced technologies such as context and scene analysis to enhance our driving understanding, as well as augmenting real-world driving data to generate rare driving events. This includes building large-scale data infrastructures and improving components like agents and realistic simulators, which are pivotal for our technical strategies and methodologies in assessing the Waymo Driver's performance.The DUE Machine Learning team will develop and maintain scalable machine learning systems and simulation workflows, enhancing evaluation processes and developer onboarding experiences. By merging expert human insights with cutting-edge machine learning models, we will provide training and evaluation data across hundreds of metrics and components that define the Waymo Driver. We are seeking passionate researchers and software engineers eager to harness machine learning techniques to elevate the evaluation systems within our autonomous vehicles, driven by a relentless pursuit of performance improvement.This position reports to the Engineering Manager.

Join our dynamic team at Spotify as a Staff Machine Learning Engineer, where you will be at the forefront of developing innovative AI solutions that enhance user experiences. In this role, you'll collaborate with cross-functional teams, leveraging your expertise in machine learning algorithms and data analysis to drive impactful projects.Your responsibilities will include designing and implementing machine learning models, optimizing algorithms for performance, and conducting research to stay ahead of industry trends. You will also mentor junior engineers, fostering a culture of knowledge sharing and continuous improvement.

About EDITEDEDITED is the premier AI-driven retail intelligence platform globally, empowering the most successful brands and retailers with the ability to make real-time decisions.By seamlessly connecting internal business data with external market insights, EDITED integrates intelligence into every retail decision. Our solutions help retailers enhance their margins, boost sales, and achieve superior business outcomes through AI-powered market and enterprise intelligence that propels automation.At EDITED, we cultivate a vibrant and inclusive culture where creativity flourishes, and collaboration is fundamental to our success. Our dynamic and supportive environment encourages team members to take initiative, innovate, and grow continuously. We prioritize diversity, transparency, and a shared commitment to excellence, fostering a workplace where every voice is valued, and contributions are celebrated.We understand that a healthy work-life balance is essential for driving innovation and success. Our flexible working arrangements—including hybrid working, flexible hours, and a work-from-anywhere policy—enable our team to perform at their best.

Who are we?At Cohere, we are committed to harnessing intelligence to benefit humanity. Our mission focuses on training and deploying advanced models for developers and enterprises, empowering the creation of innovative AI systems that drive exceptional experiences in areas like content generation, semantic search, retrieval-augmented generation (RAG), and intelligent agents. We believe our contributions are vital for the widespread integration of AI technologies.We take immense pride in our creations. Each team member is empowered to enhance the capabilities of our models and the value they deliver to our clients. We thrive in a fast-paced environment and prioritize actions that best serve our customers.Cohere comprises a talented team of researchers, engineers, designers, and other specialists who are dedicated to their craft. Our diverse perspectives are crucial for developing exceptional products.Join us in shaping the future of AI!Why is this role important?In this position, you will push the boundaries of model post-training, deploying state-of-the-art models into production while bridging the divide between research and real-world application. With one of the highest compute-to-engineer ratios globally, we foster collaboration between engineering and research, allowing everyone to contribute to production code and support research initiatives based on their interests and organizational needs. You will have access to the resources you need to excel.Please note: We have offices in London, Paris, Toronto, San Francisco, and New York, but we also support a remote-friendly work culture!As a Technical Staff Member, your responsibilities will include:Developing and implementing high-performance, scalable software for model training.Consistently performing post-training of models to achieve state-of-the-art performance.Collaborating with specialized teams (Agentic, Code, etc.) to create models with comprehensive performance metrics.Designing and executing strategies to enhance performance and outcomes during training cycles, including supervised fine-tuning (SFT) and reinforcement learning (RL).Conducting research and experimentation using our advanced supercomputing and data infrastructures.Learning from and collaborating with leading researchers in the AI field.Ideal candidates will possess:Exceptional software engineering capabilities.A strong understanding of machine learning frameworks and tools.Experience in collaborative development and version control systems.A passion for continuous learning and applying innovative solutions.

At Orbital Materials, we harness the power of AI to revolutionize data center hardware, ensuring our products consistently outperform the competition. Our advanced AI simulates materials at the atomic level, allowing us to evaluate millions of hardware configurations in the time it would typically take to assess just hundreds. This innovative approach enables us to discover optimal designs that surpass traditional benchmarks, resulting in hardware specifications that competitors cannot match: 1 MW/rack, PUE As each deployment generates valuable field data, our AI models become increasingly sophisticated. This creates a virtuous cycle where improved models lead to better hardware, which in turn enhances our AI capabilities. We are not merely benefitting from AI advancements; we are actively driving its pace.Our focus on data centers is driven by an urgent market need and demanding specifications. However, the AI-accelerated development processes we've established—spanning materials discovery, hardware design, and manufacturing optimization—are applicable to any complex physical system. Data centers serve as our initial proof point, not the limit of our ambitions.With operations in London, Canada, and the USA, we are assembling teams across various domains including ML research, product development, mechanical engineering, and chemical engineering. If you're eager to work at the intersection of AI and physical sciences, we'd love to hear from you.As a Staff Machine Learning Engineer at Orbital, you will be instrumental in architecting sophisticated AI systems for the multi-scale design of physical technologies. By multi-scale, we mean that we create world-class foundational models capable of simulating everything from the microscopic motion of atoms to the macroscopic flow of liquids in 1GW data centers. You will collaborate across these diverse scales, leveraging the creativity of our scientists and engineers, augmented by premier domain agents.In this pivotal role, you will establish exceptionally high technical standards and lead projects from initial prototypes to full-scale production deployment. We seek individuals who possess a passion for craftsmanship, a commitment to continual learning, and a drive to build scalable systems. Additionally, we value a low-ego mindset and a genuine enthusiasm for leveraging AI to tackle significant global industrial technology challenges.

About UsAt Cohere, we are on a mission to expand intelligence in a way that benefits humanity. We specialize in training and deploying advanced models for developers and enterprises aiming to create AI systems that deliver extraordinary experiences, including content generation, semantic search, retrieval-augmented generation (RAG), and intelligent agents. We are committed to fostering the widespread adoption of AI technology.We take immense pride in what we create. Each team member plays a vital role in enhancing the capabilities of our models and the value they provide to our customers. We thrive in a fast-paced environment where hard work and customer-centricity lead our decisions.Cohere comprises a dynamic group of researchers, engineers, designers, and creatives who are passionate about their work. Our team members are among the best in their fields, and we believe that diverse perspectives are essential for crafting exceptional products.Join us in shaping the future of AI!Why This Role is ExcitingAs a Member of Technical Staff at Cohere, you will be pivotal in defining and developing the future of AI-driven products. This role provides you with the opportunity to convert groundbreaking research into high-performance products that propel our enterprise forward. You will work directly on North, our comprehensive and secure AI workspace platform, focusing on agent development in RAG, tool utilization, and language agents.We boast one of the highest compute-to-engineer ratios globally, offering an environment where your ideas can thrive and be swiftly brought to market.Please note: We have offices in London, Paris, Toronto, San Francisco, and New York. However, we also support remote work within EMEA-friendly time zones. Our team primarily operates between ET and CET, so we are looking for candidates in locations that align with these hours for effective collaboration.As a Member of Technical Staff, your responsibilities will include:Collaborating with a diverse team of engineers to design, build, and scale AI systems that form the backbone of our suite of developer-centric enterprise products.Contributing directly to North, our all-in-one secure AI workspace platform, where you will lead agent development in RAG, tool usage, and language agents.Rapidly researching and experimenting with innovative ideas on our advanced supercomputer and data infrastructure to keep our products at the cutting edge of the industry.Partnering with leading researchers, engineers, and annotators to generate and evaluate data for post-training large language models (LLMs), ensuring our products are top-notch.

Who are we?At Cohere, our mission is to harness and scale intelligence for the betterment of humanity. We are dedicated to training and deploying cutting-edge models that empower developers and enterprises to create astonishing AI-driven experiences such as content generation, semantic search, retrieval-augmented generation (RAG), and intelligent agents. We believe that our innovations play a crucial role in the mainstream adoption of AI technologies.We take great pride in the products we develop. Every team member contributes to enhancing our models' capabilities and the value they deliver to our customers. Our culture is driven by hard work and a commitment to swift execution that prioritizes our clients' needs.Cohere is composed of a diverse team of researchers, engineers, designers, and more, all of whom are passionate about their respective fields. Each individual is among the best globally in their area of expertise. We firmly believe that a wide array of perspectives is essential for creating outstanding products.Join us in our quest to shape the future of AI!Why this role?As a Performance Engineer within our Pre-Training team, you will play a pivotal role in optimizing the efficiency and performance of our advanced language models and systems. Your primary focus will be on enhancing critical model training metrics, including training throughput and maximizing accelerator utilization.This team merges software engineering, machine learning, and low-level kernel design expertise to develop robust systems that elevate model performance. You will actively identify and eliminate performance bottlenecks, while also creating innovative training and profiling tools that support Cohere's mission of delivering efficient and reliable language understanding and generation capabilities, thereby driving advancements in natural language processing.Note: While we have offices in London, Toronto, New York, and San Francisco, we are also remote-friendly! This team primarily operates between Eastern Time (ET) and Central European Time (CET), so we are looking for candidates in locations aligned with these time zones for effective collaboration.As a Technical Staff Member, your responsibilities will include:Crafting and developing high-performance, scalable software solutions for model training.Comprehending architectural modifications and design choices and their impacts on training throughput and quality.Writing low-level CUDA and Triton kernels to maximize performance from our accelerators.Conducting research, implementation, and experimentation on our supercomputing and data infrastructure.Collaborating with and learning from top researchers in the field.

About UsFounded in the United States in 2022 and now headquartered in London, UK, Recraft is revolutionizing the creative landscape with its cutting-edge AI tool designed specifically for professional designers, illustrators, and marketers. Our platform sets a new benchmark in image generation excellence.Our innovative tool empowers creators to swiftly generate and refine original images, vector art, illustrations, icons, and 3D graphics using AI technology. With over 3 million users across 200 countries, who have collectively produced hundreds of millions of images, Recraft is just at the beginning of its journey.Join us and explore a universe of professional opportunities! Contribute to large-scale projects and help shape the future of creativity. We are dedicated to making Recraft an indispensable daily tool for every designer, setting the industry standard. Our mission is to enable creators to fully control their creative process with AI, equipping them with innovative tools to turn their ideas into reality.If you are enthusiastic about pushing the boundaries of AI, we welcome you to join our team!

physicsx is seeking a Staff Machine Learning Software Engineer to join its Research team in London. This position centers on building advanced algorithms and machine learning solutions to drive forward ambitious research initiatives. Role overview The main focus is on designing and implementing machine learning models that push the boundaries of current technology. Projects will involve exploring new methods and supporting research efforts that aim to solve complex problems. Location This role is based in London, United Kingdom. What you will do Develop and refine machine learning algorithms for research applications Collaborate with researchers to support innovative projects Work on solutions intended to advance the capabilities of existing technology

Join datatonic as a Machine Learning Engineer and be part of a dynamic team dedicated to leveraging data to drive intelligent decision-making. You will design and implement machine learning models, optimize algorithms, and collaborate with cross-functional teams to deliver innovative solutions.

Join datatonic as a Senior Machine Learning Engineer and be a pivotal part of our innovative team focused on transforming data into actionable insights. In this role, you will leverage your expertise in machine learning to develop and enhance algorithms, contribute to data-driven solutions, and collaborate with cross-functional teams to push the boundaries of data analytics.

Join Trainline as the Head of Machine Learning Engineering, where you'll lead our innovative machine learning initiatives. In this pivotal role, you will spearhead the development and implementation of advanced ML solutions that enhance our customer experience and optimize our operations.

About UsAt Cohere, our mission is to amplify intelligence for the benefit of humanity. We are at the forefront of training and deploying advanced models that empower developers and enterprises to create innovative AI experiences, including content generation, semantic search, retrieval-augmented generation (RAG), and intelligent agents. Our work is pivotal in driving the widespread integration of AI technologies.We are passionate about our creations and each team member plays a critical role in enhancing our models' capabilities and the value they deliver to our clients. Our work culture is fast-paced and dedicated to optimizing customer satisfaction.Cohere's diverse team of researchers, engineers, designers, and industry experts share a common passion for excellence. We value a variety of perspectives as essential to crafting exceptional products.Join us on this exciting journey to shape the future of AI!Why Join Our Team?The Next Generation Agents team is pioneering the development of agentic large language models (LLMs) that are being adopted across enterprises via Cohere’s North platform. We are dedicated to exploring innovative modeling techniques that enhance agent capabilities, such as deep research, experiential learning, continual learning, and memory integration. Our empirical research approach focuses on creating solutions that surpass current state-of-the-art methodologies, ensuring added value for our customers.In this role, you will drive the exploration and development of cutting-edge agentic techniques. You'll have the opportunity to create the models that underpin our agentic solutions, including the development of data-generation techniques for post-training (SFT and RL*) for Cohere’s models.Please Note: We maintain offices in London, Paris, Toronto, San Francisco, and New York, and we are committed to a remote-friendly approach! This team primarily collaborates within the ET to CET time zones, so we encourage candidates located in these areas for effective teamwork.As a Technical Staff Member for Next Generation Agents, you will:Design and implement innovative agentic solutionsEnhance existing capabilities on challenging agentic tasksInvestigate the future of online learning and self-improvement techniquesCollaborate with interdisciplinary teams (Reasoning, Post-training, Pre-training, etc.) to boost the performance of agentic systemsConduct empirical research to advance agentic technologies

Join Faculty as a Machine Learning Engineer and be at the forefront of innovation in artificial intelligence. In this role, you will leverage your expertise in machine learning to develop and implement cutting-edge algorithms and models that drive impactful solutions across various industries.As a part of our dynamic team, you will work collaboratively to transform complex data sets into actionable insights, optimizing our products and enhancing client offerings. If you are passionate about technology and eager to make a difference, we would love to hear from you!

About xAIAt xAI, we are on a mission to develop advanced AI systems that deeply comprehend the intricacies of the universe while assisting humanity in its quest for knowledge. Our team is compact, highly driven, and dedicated to engineering excellence. We are looking for individuals who embrace challenges and thrive on curiosity. Operating with a flat organizational structure, we encourage all employees to be proactive and contribute directly to our mission. Leadership is awarded to those who demonstrate initiative and consistently achieve high standards. A strong work ethic and effective prioritization skills are essential. Excellent communication skills are expected, enabling team members to share knowledge clearly and concisely.About the PositionAs a Technical Staff Member, you will be responsible for developing frameworks to enhance reasoning capabilities, constructing distributed reinforcement learning systems, and implementing inference time computation techniques (such as tree search and planning). You will also create environments for agents, gaining exposure to a wide range of components across the entire technical stack.Tech StackPythonJAXRustFocus AreasDevelop robust and scalable distributed reinforcement learning systems.Optimize frameworks for complex inference-time reasoning tasks.