[Hiring] Senior Backend Engineer @Paperpile

Role Description

Paperpile runs on data at scale, with a literature database of 250M+ academic papers and a growing body of user data accumulated over more than a decade. You'll work across the systems that ingest, process, store, and serve this data reliably:

• Building pipelines
• Optimizing search
• Handling PDFs at scale
• Exposing clean APIs

Qualifications

• 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 (background in Java or Python is acceptable)
• High standards for data quality, focusing on 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

Requirements

• 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

Benefits

• Base compensation €60,000–€90,000 based on the level of your experience
• Bonus/equity program
• 4 weeks paid vacation + local holidays
• We sponsor co-working space in your city
• Learn and grow. Try out new things. We sponsor relevant courses, seminars, and conferences