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Data & AnalyticsHybrid

Internship - Machine Learning Research Engineer

Perplexity · Hybrid

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Last checked by MeritLog September 26, 2026Source: AshbySource version: ashby-public-job-posting-v1

MeritLog read this listing from Perplexity's Ashby job board and last checked it on September 26, 2026.

Source: the employer's Ashby job board. Open the job post for the latest details.

Job details

Work model
Hybrid
Salary
Not listed by source
Location
Berlin

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How this role compares at Perplexity

Perplexity has 124 live roles in MeritLog’s job list across 13 job types, and 15 of them are in data & analytics. 0 of those jobs list a pay range. That is 0%.

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Job description

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).

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