Perplexity
Perplexity

Internship - Machine Learning Research Engineer

TLDR

Train large-scale PyTorch retrieval models, research representation learning, and optimize RAG pipelines for grounding and answer generation.

Internship Program Berlin

Internship program: 12 - 24 weeks, full-time, in-person in the Berlin office.

Responsibilities

  • Relentlessly push search quality forward — through models, data, tools, or any other leverage available.

  • Train, and optimize large-scale deep learning models using frameworks like PyTorch, leveraging distributed training (e.g., PyTorch Distributed, DeepSpeed, FSDP) and hardware acceleration, with a focus on retrieval and ranking models.

  • Conduct research in representation learning, including contrastive learning, multilingual, evaluation, and multimodal modeling for search and retrieval.

  • Build and optimize RAG pipelines for grounding and answer generation.

Qualifications

  • Understanding of search and retrieval systems, including quality evaluation principles and metrics.

  • Strong proficiency with PyTorch, including experience in distributed training techniques and performance optimization for large models.

  • Interested in representation learning, including contrastive learning, dense & sparse vector representations, representation fusion, cross-lingual representation alignment, training data optimization and robust evaluation.

  • Publication record in AI/ML conferences or workshops (e.g., NeurIPS, ICML, ICLR, ACL, EMNLP, SIGIR).

Perplexity builds an advanced answer engine that leverages large language models to redefine how users search and interact with information online. Targeted at enhancing browsing experiences, the company is at the forefront of AI-driven knowledge tools, making it easier for people to discover relevant answers swiftly and effectively.

Founded
Founded 2022
Employees
11-50 employees
Industry
Internet Software & Services
Total raised
$29M raised
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