Member of technical staff - Research - Agent

  • H Company
  • 16/05/2026
Full time Information Technology Telecommunications

Job Description

Key Responsibilities
  • Research & Leadership: Design and develop new agents, proposing new research directions, e.g., combining state-of-the-art RL with foundation models (LLMs/VLMs).
  • Algorithm & Systems Design: Design, implement, and scale complex, high-performance systems for training large-scale agents. This includes both the foundational infrastructure and the novel algorithms, reward models, and sophisticated training environments.
  • Research-to-Production: Collaborate closely with researchers and engineers to implement, test, and productionize new agent logics, learning algorithms, and system architectures.
  • Evaluation & Reliability: Create, manage, and scale massive benchmarks and evaluation systems to rigorously track agent capabilities. You will own system reliability, scalability, and observability for our entire research infrastructure.
  • Mentorship & Standards: Mentor and guide other engineers and researchers on the team, fostering technical excellence. You will establish and enforce engineering standards, tooling, and best practices for both code and research design.
  • Innovation: Conduct thorough code and design reviews, champion technical innovation, and proactively address technical debt to accelerate the R&D lifecycle.
Requirements
  • Technical Skills:
    • Senior Experience: Previous demonstrable role(s) as a Staff, Principal, or Senior Engineer (or equivalent Research Scientist) in a Frontier AI Lab with a proven track record of leading complex, end-to-end AI/ML projects from conception to production.
    • Education / Publication: Preferably PhD (or equivalent research experience) in Machine Learning, Computer Science, or a related field, preferably with a strong publication record (e.g., NeurIPS, ICML, ICLR) in Computer Science.
    • Core Expertise: Deep theoretical and practical expertise in Agentic AI and proven experience building, scaling, and shipping solutions involving foundation models (LLMs/VLMs).
  • Soft Skills:
    • Collaborative: Enjoys collaboration and thrives in a teamwork-oriented, fast-paced research environment.
    • High-Impact Communicator: Possesses impactful communication skills, with the ability to bridge the gap between research and engineering and articulate complex ideas clearly.
    • Mission-Driven: Genuinely eager to explore and solve the new engineering and research challenges at the frontier of agentic AI.
  • Bonus Skills:
    • Practical experience applying Reinforcement Learning to systems built on Large Language Models (LLMs).
    • Experience with distributed systems or cloud computing, preferably in AWS.
    • Familiarity with building complex simulation environments for agent training.
    • Experience with LLM training or fine-tuning.
    • Experience developing large-scale evaluation and benchmarking systems for AI models.
    • Experience inan agentic framework (e.g., LangChain, AutoGen, CrewAI, OpenAI SDK).
    • Expertise in system architecture, instrumentation, observability, and monitoring for complex, high-performance systems.
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.