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Research Engineer, Post-training

Medra· Engineering
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San Francisco$170k - $350kFull-timePosted 2w ago

About the role

Research Engineer focused on post-training AI workflows, data pipelines, evaluations, and agentic systems to enable live experimental loops in biopharma lab environments.

Responsibilities

  • Define post-training recipes for AI models — from deciding which problem matters and how to measure it, to engineering large data collections, to running ML experiments, to integrating post-trained models into production workflows
  • Build and own the post-training data pipelines integrating both internal data and public data
  • Create meaningful and trustworthy evaluations that tell us whether our models are improving scientific protocols and assay development
  • Develop agentic systems with context management and custom tool calls to surface new scientific insights about experimental design in real lab environments
  • Work closely with scientists, robotics engineers, and operation teams to bring reasoning capabilities into live experimental loops for leading biopharma partners
  • Shape the engineering culture and technical direction of a new machine learning team that's redefining how life science R&D gets done

Qualifications

  • Practical experience building AI-driven workflows into the real world
  • Strong problem solving skills for debugging complex systems
  • A clear grasp of probability, statistics, and ML fundamentals
  • Ability to own the post-training stack end-to-end: data pipelines, harnesses, RL environments, and agentic evaluations, even when things are loosely defined
  • Proficiency in Python and familiarity with at least one deep learning framework (e.g., PyTorch, JAX)
  • Experience with LLMs, post-training, reinforcement learning, or agentic systems

Skills

Required:AI-driven workflow engineeringPost-training data pipelinesEvaluation designAgentic systems / context managementPythonDeep learning frameworks (PyTorch, JAX)
Nice to have:Reinforcement learning / LLMs / agentic systems
Last updated Oct 21, 2026. Interested? Apply on the company site.

About Medra

Hand over lab work

Scientists automate protocols with Medra’s autonomous robotic system.

BiochemistryCell BiologyGenomicsHistologyMicrobial discoveryAIRobotics
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