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Internship - Machine Learning Research Engineer

Berlin · Berlin, Germany

Pay
Pay not listed
Work setting
Hybrid — work setting source
Location type: Hybrid
From the employer’s posting
Employment
Full-time — employment source
Employment type: Full-time
From the employer’s posting
Team
Search — team source

Before you apply

Sponsorship
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Will you now or in the future require sponsorship for employment visa status in the United Kingdom, Germany or Serbia?
From the employer’s application form
Apply at Perplexity

What you’ll work on

Full posting
  • Train and optimize large-scale deep learning models with PyTorch

  • Research representation learning for search and retrieval

  • Build and optimize RAG pipelines for grounding and answer generation

  • Push search quality forward through models, data, and tools

From the employer’s posting
Train, and optimize large-scale deep learning models using frameworks like PyTorch
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
Relentlessly push search quality forward — through models, data, tools, or any other leverage available

What you’ll bring

All qualifications

Core experience

  • Strong proficiency with PyTorch, including distributed training and performance optimization
  • Understanding of search and retrieval systems and quality evaluation metrics
  • Interest in representation learning, including contrastive and cross-lingual methods
  • Publication record in AI/ML conferences or workshops
Qualification wording
Strong proficiency with PyTorch, including experience in distributed training techniques and performance optimization for large models
Understanding of search and retrieval systems, including quality evaluation principles and metrics
Interested in representation learning, including contrastive learning, dense & sparse vector representations, representation fusion, cross-lingual representation alignment
Publication record in AI/ML conferences or workshops (e.g., NeurIPS, ICML, ICLR, ACL, EMNLP, SIGIR)

Tools in this posting

  • PyTorch
Source — Tool mentions in context
- 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.
- 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.

Posting record

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Live
First seen by us
Sep 2, 2026 · 57 days ago
Recorded sightings
175
Last seen by us
Oct 30, 2026

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Job description

View original posting ↗

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).

Source details

View original posting ↗

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Pay

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Location & working pattern

Berlin, Germany

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