Staff Software Engineer (Agentic Search) - Crawler
Salary not listed • Zurich, Switzerland • Full-time
Posted 15d ago
About the job
Nebius is building a novel search engine designed for AI systems, focusing on providing programmatic, low-latency, and observable search APIs. We are seeking a Staff Software Engineer to lead the development of content acquisition and crawling infrastructure. This role involves building scalable systems to discover, fetch, and refresh content from the web and other large data sources, managing billions of URLs and high-throughput data flows to ensure fresh, high-quality content for downstream AI systems.
Responsibilities
- Design, implement, and operate web-scale crawling systems for content acquisition.
- Build ingestion workflows for internal and external data sources.
- Develop crawl scheduling, prioritization, and freshness strategies.
- Build systems for URL discovery, deduplication, content extraction, and crawl orchestration.
- Ensure reliable operation of crawling infrastructure under high-throughput conditions.
- Define observability and quality metrics for crawl coverage, freshness, throughput, and content quality.
- Monitor resource usage, bandwidth consumption, and infrastructure cost.
- Collaborate with indexing and ML teams to ensure acquired content meets retrieval and ranking requirements.
- Enable safe experimentation with crawling strategies and content acquisition policies.
Requirements
- 8+ years of experience building backend or distributed systems.
- Strong Go or C++ expertise.
- Experience with large-scale distributed systems (10k+ RPS, billions of URLs, high-throughput pipelines).
- Understanding of web protocols (HTTP, DNS, TLS), crawling, scraping, and content extraction.
- Experience operating production systems and debugging failures in distributed environments.
- Strong understanding of scalability, fault tolerance, and resource management.
Benefits
- Competitive compensation
- Career growth and learning opportunities
- Flexibility and ownership
- Collaborative and innovative culture
- Opportunity to work on impactful AI projects
- International environment and talented teams