Backend Engineer
Role Overview
As a Backend Engineer at Paperpile, you will build and maintain data ingestion pipelines, optimize search systems, and develop robust REST APIs to handle a large-scale literature database. Working with Node.js and TypeScript on AWS, you will ensure data quality and reliability while processing heterogeneous data sources and PDFs. This is a mid-level role where you will have significant impact on the core data infrastructure serving millions of academic papers.
Perks & Benefits
Competitive base compensation of €60,000–€90,000 plus bonus/equity. Remote-friendly with flexible working hours, though time zone alignment with the team is expected. Opportunity to work on challenging data problems at scale with a supportive engineering culture. The role offers career growth through exposure to cutting-edge technologies like LLM-based document processing and large-scale web crawling.
Full Job 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, and exposing clean APIs.RequirementsStrong 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 experienceFamiliarity 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.CompensationBase compensation €60,000–€90,000 based on the level of your experienceBonus/equity program.Please mention the word **NOURISH** and tag RODguMTk4Ljk5LjE0Mw== when applying to show you read the job post completely (#RODguMTk4Ljk5LjE0Mw==). This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.
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