Cloudflare Distributed Systems Engineer

3 weeks ago


San Francisco, California, United States Cloudflare, Inc. Full time

At Cloudflare, we are on a mission to build a better Internet. Our expanding network powers over 25 million Internet properties and businesses worldwide. As a Distributed Systems Engineer, you will work on high-growth products, scale our network, and build tools for improved availability, performance, and security.

The role involves working on software systems that run close to the end-user, at massive scale, and deployed across 250+ cities globally. Examples include:

  • A TLS/HTTP proxy for fast and secure connections
  • Malicious traffic filtering and good traffic handling
  • Content optimization for improved performance
  • A platform for serverless Workers and key-value storage
  • Reverse-proxy caching customer website content
  • Optimizing connections from Cloudflare to origin servers
  • Our Authoritative DNS server and public resolver 1.1.1.1
  • A large data pipeline operating at 25M events per second

We operate some of the fastest and most distributed services on the Internet. Your work will focus on building robust, secure, and high-performance systems. As a member of our small engineering team, your impact will be significant.

We're looking for someone with:

  • Understanding of protocols, including differences between specs and real-world implementations
  • Experience in multiple programming languages, with bonus points for Go or Rust
  • Debugging skills to ensure system functionality in all cases
  • Strong systems-level programming skills
  • Pride in optimizing complex solutions to general problems
  • Experience with continuous integration workflows and source control (we use git)
  • Unix knowledge, with OS patching experience a plus
  • Security understanding and responsibilities
  • Monitoring, alerting, and debugging high-volume production systems
  • Data analysis skills using logs
  • API design and development
  • Excellent communication skills


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