H Company
Hybrid London
Research Science
Posted 8 months ago
Verified open on Oct 4, 2026 ยท posted 243 days ago
PhD - Graduation/Final year Internships available in our Research lab.
What we're looking for:
Currently enrolled in a PhD, ideally in its final year, 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:
โข Post-training & reinforcement learning, off-policy robustness
โข Self-verification and learning from feedback
โข Synthetic data generation at scale
โข Efficient reasoning
โข World modelling & Env generation
Alongside interesting research, youโll 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.
Not ready to apply?
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This role is classified as Research Science.
$222k - $348k is the middle 50% of disclosed salaries, measured from 273 live Research Science postings on this board. Roughly two thirds of postings disclose nothing, so this describes the ones that do, not the whole market.
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