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# Senior Backend Engineer (Data, Search, Infrastructure)

- **Company:** Paperpile
- **Location:** Austria
- **Experience:** Expert
- **Salary:** €60,000.0 - €90,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Data Deduplication, Web Scraping, Python (Programming Language), Node.Js, Query Optimization, TypeScript, Web Crawlers, Large Language Models, Backend, Pubmed, Machine Learning Operations, Restful APIs, Data Pipelines
- **Published:** July 14, 2026
- **Apply:** https://www.adzuna.at/details/5713568720

## About the Role

* Strong backend engineering background with experience building and operating data-heavy systems in production.
 * Experience deploying and operating services on AWS.
 * Experience designing and maintaining data ingestion pipelines handling messy, heterogeneous sources. Comfortable with web scraping and working with third-party data sources and APIs.
 * Familiarity with Node.js and TypeScript. It's fine if you come from a different background, such as Java or Python, but you should be comfortable working in this environment.
 * High standards for data quality. You think carefully about correctness, deduplication, and consistency.
 * Solid understanding of full-text search systems including indexing strategy, relevance tuning, and query optimization.
 * Proficient in building reliable REST APIs.

More useful experience:

 * Familiarity with academic publishing formats and data sources (PubMed, Crossref, arXiv…)
 * Experience with PDF processing pipelines (extraction, transformation, storage and delivery at scale).
 * Experience with LLM-based document processing or ML pipelines for extracting structured data from unstructured text.
 * Large scale web crawling and scraping.



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