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Internship - Search Machine Learning Engineer

Perplexity AI · London

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At a glance

Highlights

  • Help build next-generation search tech focused on retrieval and ranking.
  • Ship features that directly impact how users search and discover information.
  • Help build RAG pipelines for grounding and answer generation.

Ideal candidate

Self-driven and curious student or early-career ML enthusiast passionate about search and discovery, eager to learn production ML and take ownership in a fast-paced environment.

Requirements

  • Strong foundation in machine learning and statistics, with coursework or projects related to information retrieval, ranking, or recommender systems
  • Experience with Python and common ML frameworks (e.g. PyTorch, TensorFlow, JAX) through academic, open source, or personal projects
  • Familiarity with evaluating model quality using offline metrics and/or A/B testing is a plus
  • Previous experience working on search, recommendation, or NLP is a plus
  • Self-driven and curious, with strong ownership and comfort working in a fast-paced environment
  • Experience with Rust is a plus

Lab profile

About Perplexity AI

Builds AI search answers and agentic Computer to turn knowledge into action.

What they build

  • Perplexity AI answer engine
  • Perplexity Computer agentic assistant
  • Comet AI browser and desktop apps

Known for

  • Agentic AI and agent capabilities
  • Applied AI product engineering
  • Cross-platform apps across web, mobile and desktop
  • Multimodal AI and integrations

Key facts

  • Founded in 2022
  • Headquartered in San Francisco, California
  • Serves millions of users daily
More about Perplexity AI →
Apply on the lab’s site ↗

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