Member of Technical Staff (Search Crawler Analyst)
At Perplexity · Belgrade; London; Berlin; Belgrade, Serbia
- Full-time
Where you’ll work
Hybrid, based in Berlin, London or Belgrade
“Belgrade”
From the location.
“London”
From the location.
“Berlin”
From the location.
“Belgrade, Serbia”
From the job board field.
The job board lists it as hybrid.
Hybrid means some days in the office. The listing says how many, and where.
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- Posted
- 8 October 2026
- First seen by us
- 9 October 2026
- Last checked
- 13 hours ago
Job description
From Perplexity’s job post, as they wrote it.
The internet is vast, containing trillions of URLs. Perplexity’s crawling and storage system is complex and has multiple stages (URL discovery, crawling, parsing, indexing). Each stage offers many opportunities for improvement and room for intricate bugs. You’ll work at the intersection of data analysis and engineering — designing metrics, building data pipelines, and improving the quality of our search and answer systems.
Read the full description
Responsibilities
* Find and diagnose quality issues in our crawling pipeline
* Train small models that optimize particular aspects of the pipeline (e.g. parsing quality)
* Build datasets for model training, including LLM-as-a-judge labeling pipelines
* Improve page selection algorithms for indexing
* Design and analyze experiments to validate improvements
Qualifications
* 4+ years of experience as a data analyst, ML engineer, or in a related role
* Strong coding skills: you should be able to write production-grade code at the level of a mid-level backend engineer
* Experience designing metrics from scratch
* Experience training ML models that shipped to production with measurable metric improvements
Nice to have
* Direct experience working on web crawling or indexing pipelines
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