---
title: "Member of Technical Staff (Machine Learning Research Engineer) at Perplexity – All Job Board"
---

# Member of Technical Staff (Machine Learning Research Engineer) at Perplexity

Written by

[admin](https://alljobboard.com/author/admin/)

in

- [Berlin](https://maps.google.com/maps?q=Berlin&zoom=14&size=512x512&maptype=roadmap&sensor=false)
- Posted 3 weeks ago

![Perplexity](https://alljobboard.com/wp-content/plugins/wp-job-manager/assets/images/company.png)

 **Perplexity**

Perplexity is seeking an experienced Machine Learning Research Engineer to help build the next generation of advanced search technologies, with a focus on retrieval and ranking.

**Responsibilities**

- Relentlessly push search quality forward — through models, data, tools, or any other leverage available
- Architect and build core components of the search platform and model stack
- Design, 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 advanced research in representation learning, including contrastive learning, multilingual, and multimodal modeling for search and retrieval
- Deploy models — from boosting algorithms to LLMs — in a scalable and performant way
- Build and optimize RAG pipelines for grounding and answer generation
- Collaborate with Data, AI, Infrastructure, and Product teams to ensure fast and high-quality delivery

**Qualifications**

- Deep understanding of search and retrieval systems, including quality evaluation principles and metrics
- Proven track record with large-scale search or recommender systems
- Strong proficiency with PyTorch, including experience in distributed training techniques and performance optimization for large models
- Expertise in representation learning, including contrastive learning and embedding space alignment for multilingual and multimodal applications
- Strong publication record in AI/ML conferences or workshops (e.g., NeurIPS, ICML, ICLR, ACL, CVPR, SIGIR)
- Self-driven, with a strong sense of ownership and execution
- Minimum of 3 years (preferably 5+) working on search, recommender systems, or closely related research areas

Find Jobs in Germany on Arbeitnow

**Source:** this listing was published by [Arbeitnow](https://www.arbeitnow.com/). [View the original posting and apply](https://www.arbeitnow.com/jobs/companies/perplexity/member-of-technical-staff-machine-learning-research-engineer-berlin-289465) — applications are handled there, not on this site.

To apply for this job please visit [www.arbeitnow.com](https://www.arbeitnow.com/jobs/companies/perplexity/member-of-technical-staff-machine-learning-research-engineer-berlin-289465).

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