Perplexity

Internship - Machine Learning Research Engineer

Perplexity
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1 day ago
Berlin, GermanyIntern
H1B Sponsor

Responsibilities

  • Advance search quality through models, data, tools, and other available approaches.
  • Train and optimize large-scale deep learning models using PyTorch, PyTorch Distributed, DeepSpeed, FSDP, and hardware acceleration.
  • Research representation learning, including contrastive, multilingual, evaluation, and multimodal modeling for search and retrieval.
  • Build and optimize RAG pipelines for grounding and answer generation.

Requirements

  • Understand search and retrieval systems, including quality evaluation principles and metrics.
  • Demonstrate strong proficiency with PyTorch, distributed training techniques, and performance optimization for large models.
  • Have an interest in contrastive learning, dense and sparse vector representations, representation fusion, cross-lingual representation alignment, training-data optimization, and robust evaluation.
  • Have a publication record in AI/ML conferences or workshops such as NeurIPS, ICML, ICLR, ACL, EMNLP, or SIGIR.

Benefits

  • Full-time internship lasting 12–24 weeks.
  • In-person work in the Berlin office.

Tech Stack

Categories

Perplexity

About Perplexity

201-500 employees

The most powerful answer engine. Powering curiosity with answers backed by up-to-date sources. This is where knowledge begins.

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