About H:
H exists to push the boundaries of superintelligence with agentic AI. By automating complex, multi-step tasks typically performed by humans, AI agents will help unlock full human potential.H is hiring the world’s best AI talent, 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 Team:
The AI Data team advances the performance of Large Language Models (LLMs) and Vision-Language Models (VLMs) through cutting-edge data-centric techniques. From synthetic data generation to model distillation and AI-driven preference alignment, we develop high-quality datasets that enhance model efficiency, reasoning, and adaptability. Our work directly impacts the training and fine-tuning of frontier AI systems, ensuring they learn from richer, more diverse, and better-structured data.
Join us in shaping the future of AI through cutting-edge data optimization. We’re looking for driven individuals who thrive in fast-changing environments, adapt to new research paradigms, and eagerly take on challenges—whether deploying models, inspecting data, or pioneering new synthetic and reinforcement learning data methods.
Key Responsibilities:
- Develop and implement cutting-edge data strategies to improve the performance, efficiency, and applicability of LLMs, VLMs and Action Models:
- Generate and augment synthetic multimodal datasets, including images, text, and action trajectories, to advance model capabilities in areas like VQA, agent behaviors, and virtual navigation
- Apply model distillation techniques to optimize large-scale models for edge deployment, ensuring scalability without compromising performance
- Design and iterate on evaluation frameworks to target edge cases and measure model improvements across multiple domains
- Lead research into aligning data with human and AI preferences, implementing feedback loops to refine agent decision-making and learning behaviors
- Collaborate effectively with cross-functional teams to integrate data-driven solutions into LLM, VLM and Agent systems
- Stay at the forefront of breakthroughs in AI data strategies, model distillation, and multimodal learning through active scientific exploration
Requirements:
- Technical skills:
- Strong, polyvalent programming skills in Python covering parallel computing, system design, large-scale deployments, AWS deployments and model evaluations
- Experience developing and maintaining multimodal data pipelines
- Experience in training and deploying LLMs, VLMs or Pytorch models
- Research skills:
- MSc or PhD in machine learning, computer vision, natural language processing, or a related field
- Deep understanding of training and evaluation paradigms for multimodal models
- Soft skills:
- Strong communication skills with technical and non-technical staff
- Effectiveness in fast-changing environments
- Nice to Have:
- Experience with agent-specific data pipelines and improvement techniques is a plus
- Experience managing efficient multi-modal human annotation platforms is a plus
Location:
- Paris or London.
- This role is hybrid, and you are expected to be in the office 3 days a week on average.
- Please expect some travel between offices on a reasonable cadence (e.g., every 4-6 weeks).
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
- Enjoy a competitive salary
- Unlock opportunities for professional growth, continuous learning, and career development
If you want to change the status quo in AI, join us.
