Internship - Machine Learning Research Engineer
Perplexity
Internship - Machine Learning Research Engineer at Perplexity is a full time role based in Remote · Berlin, Germany (remote). It was published on 2 September 2026 and was open at last check.
| Role | Internship - Machine Learning Research Engineer |
|---|---|
| Company | Perplexity |
| Location | Remote · Berlin, Germany (remote) |
| Employment type | Full Time |
| Published | 2 September 2026 |
| Status | Open at last check |
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).
Create your free OnJob profile to apply — we'll take you to Perplexity's application after sign-up. · Posted 2 Sept 2026.
Internship - Machine Learning Research Engineer at Perplexity — questions answered
What does the Internship - Machine Learning Research Engineer role at Perplexity pay?
Perplexity does not publish a salary on this Internship - Machine Learning Research Engineer listing, so OnJob shows no figure for it rather than an estimate. For what this role pays across the market, the OnJob salary guides aggregate the live listings that do disclose pay.
Is the Internship - Machine Learning Research Engineer role at Perplexity remote?
Yes — Perplexity advertises this Internship - Machine Learning Research Engineer role as remote, tied to Remote · Berlin, Germany, and it is listed as full time work. Remote terms come from the employer's own posting, so confirm the expected working hours, timezone and any on-site days with Perplexity before you apply.
Is the Internship - Machine Learning Research Engineer role at Perplexity still open?
The Internship - Machine Learning Research Engineer posting at Perplexity was open at OnJob's last check of the employer's careers page, having been published on 2 September 2026. OnJob re-checks source listings on each build and marks a role closed once it disappears, but listings can close without notice, so the employer's own page is the final word.
How do you apply for the Internship - Machine Learning Research Engineer role at Perplexity?
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