PE
$0 Platform FeeVerified Opportunity

Internship - Machine Learning Research Engineer

Perplexity

Berlin
Competitive Pay
full time
Posted 9/4/2026

Role Overview

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). Find more English Speaking Jobs in Germany on Arbeitnow

Apply on CLIVORA

Submit your proposal directly through CLIVORA. Enjoy private client negotiation, escrow security, and $0 platform commission.

Keep 100% of negotiated amount
Direct milestone invoices & timesheets
Secure client chat & file vault

Founder Platform Guarantee

1 Year Free Pro Plus included for all early members.

About the Client

Perplexity

arbeitnow.com

Verified Organization