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Member of Technical Staff - Post Training, Reinforcement Learning

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Liquid AI

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Location:
United States , San Francisco

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

At Liquid, we’re not just building AI models—we’re redefining the architecture of intelligence itself. Spun out of MIT, our mission is to build efficient AI systems at every scale. Our Liquid Foundation Models (LFMs) operate where others can’t: on-device, at the edge, under real-time constraints. We’re not iterating on old ideas—we’re architecting what comes next. We believe great talent powers great technology. The Liquid team is a community of world-class engineers, researchers, and builders creating the next generation of AI. Whether you're helping shape model architectures, scaling our dev platforms, or enabling enterprise deployments—your work will directly shape the frontier of intelligent systems.

Job Responsibility:

  • Profile, optimize, and scale RL training runs to reduce iteration time
  • Integrate new optimization techniques as they emerge from the research community
  • Design and implement tools and environments that test the boundaries of model capabilities
  • Turn proof-of-concept ideas into robust training pipelines and best-in-class models

Requirements:

  • Strong Python and PyTorch proficiency, with hands-on experience optimizing training pipelines
  • Hands-on experience with reinforcement learning and the ability to translate optimization techniques from theory into practical implementations
  • Track record of integrating research ideas into robust, maintainable code
  • Experience with frameworks like DeepSpeed, FSDP, or vLLM for efficient model training and inference
  • Experience working with data pipelines, including curation, validation, and analysis to support post-training objectives
  • Contributions to open-source machine learning projects
  • M.S. or Ph.D. in Computer Science, Electrical Engineering, Mathematics, or a related field
What we offer:
  • The opportunity to work directly on state-of-the-art AI systems at one of the most advanced AI companies in the world
  • A fast-paced, collaborative environment where your work has direct impact on model performance and product capability
  • The satisfaction of knowing your craftsmanship helps define the next frontier in AI

Additional Information:

Job Posted:
February 21, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
Job Link Share:

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