Medra

Research Engineer, Post-training

Medra
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6 hours ago

Responsibilities

  • Define post-training recipes, including problem selection, measurement, data collection, machine-learning experiments, and production integration.
  • Build and own post-training data pipelines using internal and public data.
  • Create evaluations that measure whether models improve scientific protocols and assay development.
  • Develop agentic systems with context management and custom tool calls for scientific experimental design.
  • Collaborate with scientists, robotics engineers, and operations teams to integrate reasoning capabilities into live laboratory workflows.
  • Help shape the engineering culture and technical direction of a new machine-learning team.

Requirements

  • Practical experience building AI-driven workflows for real-world use.
  • Strong problem-solving skills for debugging complex systems.
  • Understanding of probability, statistics, and machine-learning fundamentals.
  • Ability to own data pipelines, evaluation harnesses, reinforcement-learning environments, and agentic evaluations end to end.
  • Proficiency in Python and familiarity with at least one deep-learning framework such as PyTorch or JAX.
  • Experience with large language models, post-training, reinforcement learning, or agentic systems.

Benefits

  • Opportunity to join an early-stage team building autonomous scientific laboratories and Physical AI systems.
  • Collaboration with scientists, robotics engineers, and operations teams in real experimental environments.
  • Mission-driven, collaborative engineering culture with team activities including skiing and go-karting.

Tech Stack

Categories

AI ResearchML Engineering
Medra

About Medra

51-200 employees

Medra builds Physical AI for laboratories: robotic systems and software that run experiments, analyze data, and iterate to accelerate R&D. It partners with biopharma companies to automate wet-lab workflows, offering an integrated hardware–software platform and services. Medra is privately held and headquartered in San Francisco.

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