Perplexity logo

Internship - Machine Learning Research Engineer (Berlin)

Posted 49 days ago

Job Description

This job posting has expired and no longer accepting applications.

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).

This job posting has expired and no longer accepting applications. Please check out our latest AI jobs.

Perplexity logo

Perplexity

6 jobs posted

View all Perplexity jobs

About the job

Posted on

Jan 12, 2026

Apply before

Feb 11, 2026

Job typeFull-time
Location

Never miss a new AI job

Get the latest AI jobs delivered to your inbox every week. Free, no spam.