Staff Software Engineer, Web-Scale Crawling & Ingestion

FDE Times; Greater London; Hybrid; GBP 120,000 - 190,000; Full time

Benefits offered by this job

Competitive compensation

Career growth and learning

Flexibility and ownership

Collaborative culture

Impactful AI projects

International environment

Job summary

Nebius in London is seeking a Staff Software Engineer to build the content acquisition and crawling infrastructure for a world-scale search platform designed for agentic AI. You will design distributed crawling, scheduling, and ingestion systems capable of handling billions of URLs and terabytes of data.

Collaborate with indexing and ML teams, improve observability, optimize resource use, and drive safe experimentation with crawling strategies.

Qualifications

• 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.

Responsibilities

• Design, implement, and operate web-scale crawling systems for acquiring content from the internet.
• Build ingestion workflows for internal and external data sources, including crawlers, structured feeds, and partner integrations.
• Develop crawl scheduling, prioritisation, recrawl policies, 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.

Skills

Distributed systems

Go/C++ expertise

High throughput

Web protocols

Production debugging

Tools

Kafka

Pulsar

NATS

RabbitMQ

Spark

Flink

Job description

Nebius in London is seeking a Staff Software Engineer to build the content acquisition and crawling infrastructure for a world-scale search platform designed for agentic AI. You will design distributed crawling, scheduling, and ingestion systems capable of handling billions of URLs and terabytes of data.

Collaborate with indexing and ML teams, improve observability, optimize resource use, and drive safe experimentation with crawling strategies.