19 of 19 Remote/Hybrid Reinforcement Learning Jobs in London

Research Engineer / Scientist, Post-training - London

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
seeking those who are dedicated as much to building safely and responsibly as to advancing disruptive agentic capabilities. We promote a mindset of openness, learning, and collaboration, where everyone has something to contribute. About the Research & Models Team The Models team builds the foundational models that power our cutting … perceive, understand, and act within complex environments. We own the entire pipeline including synthetic data generation, environment design, mid-training, supervised fine-tuning, offline reinforcement learning, online reinforcement learning, reward modelling, transition modelling, etc. Our team also has dedicated MLOps, Infra and Inference support at scale. ...

Senior Research Scientist FMTA

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
large language models. We focus on developing algorithms and systems that align pre-trained models with tasks and performance goals through techniques like reinforcement learning. As a research-driven team, we stay up to date with current literature to integrate cutting-edge ideas into our core stack. As part … controllability, and safer, more effective user experiences. Your responsibilities As a Senior Research Scientist, you’ll design, implement, and deploy cutting-edge research in reinforcement learning and post-training at scale, driving innovations that make it into production. You will: Build and deploy state-of-the-art reinforcement ...

Senior Research Scientist | Model Steering

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
deliver perfect translations for the most demanding use cases. To that end, we take responsibility for the entire life cycle of the machine learning models that power our language AI products. This includes data, training, quality assurance, and operational aspects. In our highly collaborative teams, each person … drive impact across the company. Your responsibilities We are looking for a Senior Research Scientist to lead fine-tuning, post-training, model-steerability, and reinforcement learning for the next generation of DeepL's LLM-based translation models. This is a high-impact, hands‐on role for a researcher ...

Machine Learning Research Engineer - Deep Learning

Hiring Organisation
Spencer Rose Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 110,000 Annual
Machine Learning Research Engineer - Deep Learning Location: Farringdon, London (Typically 2 days per week in the office) Salary: Up to £110,000 + 10% Bonus The Opportunity We're working with a growing technology business that's using advanced AI to solve complex real-world engineering problems. They … looking for an Applied Scientist to join their R&D function, where the focus is on researching and developing novel deep learning approaches to tackle problems that don't have an obvious solution. This is a role for someone who enjoys understanding complex systems, experimenting with new ideas ...

Principal Architect - United Kingdom

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
code and have a good understanding of data structures and algorithms. A Bachelor's or Master's degree in Computer Science, Artificial Intelligence, Machine Learning, or a related field is required. Preferred Skills Knowledge of Machine Learning Algorithms: Familiarity with various machine learning algorithms like linear regression … decision trees, SVM, etc. Experience with Deep Learning Frameworks: Experience with frameworks like TensorFlow, PyTorch, or Keras. Familiarity with Natural Language Processing: Understanding of NLP techniques and libraries like NLTK, SpaCy, etc. Knowledge of Cloud Platforms: Experience with cloud platforms like AWS, Google Cloud, or Azure. Understanding of Computer ...

Quantitative Researcher

Hiring Organisation
Search Elements MENA
Location
City of London, London, United Kingdom
competitive base salary + performance-linked bonus structure Overview We are currently partnering with a premier systematic investment firm to identify an exceptional Machine Learning Quantitative Researcher. In this role, you will join a specialized research team dedicated to developing next-generation quantitative trading strategies. This position offers … opportunity to leverage extensive computational resources and robust data infrastructure to focus exclusively on greenfield research. You will be tasked with applying advanced machine learning methodologies to complex, unstructured datasets to identify and capture new sources of alpha in global financial markets. Key Responsibilities Design, develop, and deploy advanced ...

Senior Machine Learning Engineer London

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
quantitative field (e.g., computer science, mathematics, statistics), another quantitative applied field or equivalent experience. Strong understanding of industry standard ML techniques (from classification to reinforcement learning and generative methods) Experience in applying machine learning algorithms to solve real-world problems. Experience with software development concepts like … strong desire to create engaging player experiences and drive business results. Bonus points if you also have Experience with more complex ML techniques (e.g. Reinforcement Learning). Experience with A/B testing methodologies in an online gaming context. Experience working in the games industry. Working at Tripledot ...

AI/ML Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
implementation of our Evidence-Based Intervention Library. Develop AI features tailored for product retention and engagement. Implement features involving expectation setting, gamification, and reinforcement learning for the personalization of care. Optimize our recovery data collection processes, focusing on the methods, timing, and predictive modelling of PHQ-9s. Provide … approach to hypothesis-driven work, with a track record of balancing product development with scientific rigour. Experience in Eval-driven-development. Experience using Machine Learning in a production environment or via high-impact scientific publications (e.g., predictive modelling, reinforcement learning). Experience modelling text/language data ...

Software Engineer, RL Data

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
down to reading transcripts, supporting users, and wrangling vendors. The company's RL Data team builds the systems that produce high‐quality reinforcement learning data for Claude: data collection pipelines, human feedback tooling, the execution environments RL tasks run in, and the quality assurance that keeps training data … Effective use of AI tools in your own day‐to‐day work. Care about the societal impacts of your work. Preferred qualifications Experience with reinforcement learning on LLMs, particularly on the data side: creating evals, environments, rewards, graders, or training data. Experience helping organizations use AI more effectively ...

Software Engineer, RL Data

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
down to reading transcripts, supporting users, and wrangling vendors. Anthropic’s RL Data team builds the systems that produce high‐quality reinforcement learning data for Claude: data collection pipelines, human feedback tooling, the execution environments RL tasks run in, and the quality assurance that keeps training data trustworthy … Effective use of AI tools in your own day‐to‐day work. Care about the societal impacts of your work. Preferred qualifications Experience with reinforcement learning on LLMs, particularly on the data side: creating evals, environments, rewards, graders, or training data. Experience helping organizations use AI more effectively ...

Research Engineer, RL Scaling Science

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
policy experts, and business leaders working together to build beneficial AI systems. About the role The company's RL Scaling Science team studies how reinforcement learning behaves as we scale it (across model size, compute, and task horizon) and turns that understanding into the training recipes behind … scale Partner closely with adjacent RL teams across research and engineering and advance our overall RL stack Minimum qualifications Strong empirical research skills in Reinforcement Learning, large-scale ML training, or a closely adjacent area Demonstrated ability to own large experiments end-to-end, from design through interpretation ...

Manager, Lead Research Scientist, LLM Agents (Foundational Research)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
curious and open-minded individual with an interest in conducting state-of-the-art foundational machine learning research? Thomson Reuters Labs is seeking Research Scientists with a passion for building complex agent-based AI systems in a data-rich, complex academic environment driven by real-world problems. Foundational Research … sleeves and participate in designing, coding, conducting experiments, and translating findings into concrete deliverables. Our focus areas are: LLM Training (Continued Pretraining, Instruction Tuning, Reinforcement Learning Alignment, Distributed Training, Efficient ML techniques) Post-training techniques for planning, reasoning & complex workflows (e.g., Reasoning Models, LLMs + Knowledge Graphs, Test ...

Manager, Research Engineering (Foundational Research)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Manager, Research Engineering with the skills and drive to manage a top performing Engineering team focused on developing the latest in LLM and Machine Learning capabilities. Foundational Research Foundational Research is the dedicated core Machine Learning research division of Thomson Reuters. We are focused on research and development … with a particular focus on advanced algorithms and training techniques for Large Language Models (LLMs). LLM Training (Continued pretraining, instruction tuning, reinforcement learning, distributed training, efficient ML techniques) Post-training techniques for planning, reasoning & complex workflows (e.g., reasoning models, LLMs + knowledge graphs, test time compute ...

Data Scientist Senior Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
ensure best practices in modelling, experimentation and deployment. Data Science & Advanced Analytics – Design and implement predictive and prescriptive models for airline operations, applying machine learning, optimisation and statistical analysis to large, complex data sets. Translation of Business Problems – Convert business challenges into analytical frameworks and actionable solutions to improve … driving high‐impact projects and aligning with business objectives. Advanced knowledge of the Data Science Toolbox – mathematics, statistics, programming, data ingestion, munging, visualisation, machine learning, optimisation, simulation, reinforcement learning, and big‐data technologies. Experience leading successful data‐science projects in an operational setting (preferred). Understanding ...

Senior Data Scientist & Operations Analytics Lead

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Ensure best practices in modelling, experimentation, and deployment. · Data Science & Advanced Analytics. Design and implement predictive and prescriptive models for airline operations. Apply machine learning, optimization techniques, and statistical analysis to large, complex datasets · Translate business problems into analytical frameworks and actionable solutions to improve decision making · Stakeholder engagement. … advanced knowledge level of the Data Science Toolbox (i.e. the fundamentals of Mathematics and Statistics, computer programming, Data Ingestion, Data Munging, Data visualisation, Machine Learning, Optimisation, Simulation, Reinforcement Learning and Big Data techniques and technologies) · Have experience of leading and landing successful Data Science projects ...

Software Engineer (Applied AI)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
iteration of our next-generation benefits platform features that leverage personalization, experimentation, and AI/ML methods (e.g. agents/LLMs, recommender systems, reinforcement learning) to enhance user experience in a meaningful business domain. Contribute across the tech stack : You’ll work in React (JavaScript/TypeScript … against important business goals that help the entire team win Pragmatic Best Practices : An overarching desire to build efficient, scalable, and maintainable code, while learning the tradeoffs between technical debt and delivery speed What we look for We’re a great bunch but we have some "Euph" cultural ...

Head of Applied AI Research

Hiring Organisation
Higher - AI recruitment
Location
London Area, United Kingdom
publications role. It is a role for someone who wants to do serious science and see it matter. WHAT YOU BRING PhD in Machine Learning from a leading research institution 7+ years leading applied AI research teams in a commercial environment with access to large-scale, unique data Deep … expertise in at least two of: LLMs and foundation models (pretraining, fine-tuning, distillation), physics-informed neural networks, or reinforcement learning Experience with agent frameworks, tool-use planning and workflow orchestration Systems-level fluency across data pipelines, training infrastructure and inference (PyTorch, JAX, TensorFlow) Strong MLOps discipline ...

Applied Scientist (Integrity)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
What We Are Looking For Deep expertise in one applied ML, statistics or data science speciality. Examples could be risk modelling, LLM detection, or reinforcement learning – any area of genuine depth counts. Judgement about when to reach for simple statistics, classical ML, LLMs, or agentic approaches. 3+ years ...

Senior Research Scientist, RL & Post-Training (Hybrid)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
DeepL is seeking a Senior Research Scientist to design, implement, and deploy cutting-edge reinforcement learning and post-training research at scale. You will drive innovations that translate to production, collaborating with engineering, ML platforms, and HPC teams. The role emphasizes building scalable RL pipelines, aligning models with ...