combucha

Perplexity

Series C+

Internship - Machine Learning Research Engineer

Berlin, DEHybridPay not listed

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The posting

From Perplexity’s Ashby board, as written by the employer.

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).

More at Perplexity

  1. Member of Technical Staff (Software Engineer, Applied AI)

    San Francisco, CA +2agents, research

    $220K–$405K

  2. Member of Technical Staff (Software Engineer, Model Platform)

    San Francisco, CA +1

    $220K–$405K

  3. Member of Technical Staff (TPM, Inference)

    San Francisco, CA +1inference

    $170K–$265K

  4. Member of Technical Staff (Applied AI Engineer, Agent Capabilities)

    San Francisco, CA +1agents, evals, research

    $220K–$405K

  5. Member of Technical Staff (Machine Learning Engineer, Search & Agents)

    Belgrade, RS +2Hybridagents, search, evals

    Pay not listed

All 20 roles at Perplexity

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