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H Company
UK & Ireland

Research Scientist Intern (PhD) - Model Team - London

London Area, United Kingdom
2026-05-23

Role Description

PhD - Graduation/Final year Internships available in our **Research lab** . **What we're looking for:** * PhD (completed or near completion) in Computer Science, Machine Learning, Mathematics, or a related field. * Published in top-tier conferences (NeurIPS, ICML, ICLR, CVPR, ACL, EMNLP, ICCV, CoRL). * Strong research and/or research engineering experience at leading ML research labs. **About H:** H Company is a next-generation AI research and product company pioneering the future of autonomous, agentic AI. Founded to build intelligence that acts, H Company is creating the foundational infrastructure for autonomous AI systems that drive real-world outcomes across industries. **About our Team:** Our Models team builds the foundational models that power our cutting-edge agentic technology. We focus on training techniques to optimize model capabilities specifically for agent applications. This allows us to achieve the best performance at a given inference cost. Our work spans the development of Large Language Models (LLMs) and Vision-Language Models (VLMs), enabling agents to perceive, understand, and act within complex environments. We are deeply involved in enhancing these models through training methods with a focus on improved instruction following, tool use, and interaction with dynamic environments via large-scale reinforcement learning and reward modeling. We operate at the intersection of research and product, translating cutting-edge research into practical solutions that drive the next generation of AI. We are looking for bright, motivated individuals to join our ranks and shape the future of superintelligent AI. **Research areas include:** * Post-training \& reinforcement learning, off-policy robustness * Self-verification and learning from feedback * Synthetic data generation at scale * Efficient reasoning * World modelling \& Env generation Alongside interesting research, you’ll enjoy a very high GPU-to-researcher ratio. We are excited to tell you more ! **Location:** * London **What we offer:** * Join the exciting journey of shaping the future of AI, and be part of the early days of one of the hottest AI startups. * Collaborate with a fun, dynamic, and multicultural team, working alongside world-class AI talent in a highly collaborative environment. * Unlock opportunities for professional growth, continuous learning, and career development. **If you want to change the status quo in AI, join us.**

Research Scientist Intern (PhD) - Model Team - London

H Company

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