# Internship - Machine Learning Research Engineer — Perplexity

Canonical: https://jobxdubai.com/jobs/b9e1ff15-d52-internship-machine-learning-research-engineer
Location: -, Remote (remote)
Type: internship · Level: entry
Monthly salary: AED 3,500 to 7,000 per month (estimated, not employer-stated) (UAE salaries are tax-free)
Posted: 2026-09-02
Apply: https://jobs.ashbyhq.com/perplexity/b9e1ff15-d52a-46d5-abf0-26460f2a116c/application

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## 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).

## Requirements

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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