Internship - Machine Learning Research Engineer — Opportunihub
Job

Internship - Machine Learning Research Engineer

Perplexity · Berlin

At a glance

Type
Job
Organisation
Perplexity
Location
Berlin
Work mode
On-site
Deadline
Rolling / not stated
Posted
4 Sep 2026

About this job

<p style="min-height:1.5em"><strong>Internship Program Berlin</strong></p><p style="min-height:1.5em">Internship program: 12 - 24 weeks, full-time, in-person in the Berlin office.</p><p style="min-height:1.5em"><strong>Responsibilities</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Relentlessly push search quality forward — through models, data, tools, or any other leverage available.</p></li><li><p style="min-height:1.5em">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.</p></li><li><p style="min-height:1.5em">Conduct research in representation learning, including contrastive learning, multilingual, evaluation, and multimodal modeling for search and retrieval.</p></li><li><p style="min-height:1.5em">Build and optimize RAG pipelines for grounding and answer generation.</p></li></ul><p style="min-height:1.5em"><strong>Qualifications</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Understanding of search and retrieval systems, including quality evaluation principles and metrics.</p></li><li><p style="min-height:1.5em">Strong proficiency with PyTorch, including experience in distributed training techniques and performance optimization for large models.</p></li><li><p style="min-height:1.5em">Interested in representation learning, including contrastive learning, dense &amp; sparse vector representations, representation fusion, cross-lingual representation alignment, training data optimization and robust evaluation.</p></li><li><p style="min-height:1.5em">Publication record in AI/ML conferences or workshops (e.g., NeurIPS, ICML, ICLR, ACL, EMNLP, SIGIR).</p></li></ul><p>Find <a href="https://www.arbeitnow.com">Jobs in Germany</a> on Arbeitnow</a>

How to apply

  1. 1 Read the full details above and confirm you meet the eligibility criteria.
  2. 2 Prepare your documents — an updated CV, and any cover letter, proposal or certificates required.
  3. 3 Click Apply on official site to complete your application on Perplexity’s official page.
  4. 4 Submit as early as possible — many close once filled.
Apply on official site

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Frequently asked questions

How do I apply for Internship - Machine Learning Research Engineer?

Review the full details and eligibility on this page, prepare your documents, then use the “Apply on official site” button to complete your application on Perplexity’s official page.

Is this opportunity remote or location-based?

This opportunity is based in Berlin. Check the official listing for any relocation or on-site requirements.

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