Startups · AI

Machine Learning Engineer Intern - Summer 2026

Novaflow · San Francisco, CA, US / Remote (US) · Remote

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About Novaflow

The AI data analyst for biology labs. Backed by Y Combinator.

About the role

We're hiring a Machine Learning Engineer Intern to help build the AI systems that power our platform. The core challenge: take a natural language query from a biologist and turn it into a correct, reliable bioinformatics workflow. You'll work with LLMs, experiment with prompt engineering and fine-tuning, and help build evaluation systems to measure when the outputs are actually good.

What they're looking for

  • Currently pursuing or recently completed a Bachelor's or Master's in Computer Science, Machine Learning, AI, or a related field
  • Strong Python skills
  • Familiarity with ML frameworks (PyTorch, TensorFlow, or similar)
  • Basic understanding of LLMs and modern AI techniques (fine-tuning, RAG, prompt engineering)
  • Some experience working with datasets and building data pipelines
  • Can think critically about when an LLM output is actually correct
More about this role

Novaflow is the AI data analyst for biology labs. Analytics is the bottleneck for scientific discovery. Biologists have to outsource analysis to expensive bioinformaticians or core services and wait weeks or months for results. We're solving this by putting analysis directly back into the hands of researchers, allowing them to go from raw data to publication-ready insights and visualizations in days instead of months. We're well-funded, growing extremely fast, and backed by leading investors including Y Combinator and BioRender.

We're hiring a Machine Learning Engineer Intern to help build the AI systems that power our platform. The core challenge: take a natural language query from a biologist and turn it into a correct, reliable bioinformatics workflow. You'll work with LLMs, experiment with prompt engineering and fine-tuning, and help build evaluation systems to measure when the outputs are actually good.

This is not a sit-in-the-corner internship. We're a small team and you'll work directly with the founders on real problems from day one. We're looking for someone with high agency who takes initiative and doesn't wait to be told what to do. Biology background is not...

Read the full posting on Novaflow's site ↗

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